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172 results about "Free radical oxidation" patented technology
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Free radicals and oxidation is believed to play a part in diabetes because the presence of free radicals and excess oxidation interfere with the function of the pancreas including production of insulin.
Adenovirus formulations
InactiveUS20050186225A1Enhance shortImprove long-term stabilityBiocideViral antigen ingredientsNon ionicSugar
The invention relates to viral formulations and related pharmaceutical products for use in gene therapy and / or vaccine applications. Especially preferred viral formulations disclosed herein are liquid adenovirus formulations, which show improved stability when stored in about the 2-8° C. range while also being compatible with parenteral administration. These formulations comprise a buffer, a sugar, a salt, a divalent cation, a non-ionic detergent, as well as a free radical scavenger and / or a chelating agent to inhibit free radical oxidation.
Owner:MERCK SHARP & DOHME CORP
Cosmetic compositions containing fullerene clusters
InactiveUS20050136079A1Prevent sunburnPrevent solar burnsCosmetic preparationsBiocideMedicineMucous membrane
The present invention is directed to a cosmetic composition comprising effective amounts of fullerene clusters in association with cosmetically acceptable carrier to prevent or retard free radical oxidation processes in the skin and to the method of using said composition for reducing damage to healthy skin or mucous membranes by free radicals.
Owner:FULLERENE INT CORP
Method and apparatus for highly efficient removal of water organisms by utilizing photoelectric Fenton reaction
The invention provides a photoelectrical FenDun method for removing the non-degradable organic substance in water, which combines photochemistry reaction and electrical FenDun reaction to co-treat the organic substance effectively with multiple actions. The invention also provides a device applying the photoelectrical FenDUN reaction to remove organic substance in water, which comprises: the reactor employing shape stable electrode (DSA) as anode, employing activated charcoal as cathode, putting the low pressure mercury vapor lamp closed in the quartz glass tube vertically between the anode and cathode and venting a certain quantity of oxygen to the cathode surface, adding marginal ferrous salt into the organic wastewater with pH being about 3 as catalyst and importing current flow for electrolysis to remove pollutant. The invention oxides and degrades organic substance by using the hydroxyl free radical generated by photochemical reaction and electrical FenDun reaction, the hydroxyl free radical possesses strong oxidability which can oxide organic substance without selection, and is characterized by the complete, fast and effective oxidation and no secondary pollution.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Method for synchronous desulfurization and denitrification of marine vessel exhaust
InactiveCN101822937AShort stayStrong oxidation abilityDispersed particle separationAir quality improvementDecompositionSeawater quality
The invention discloses a method for synchronous desulfurization and denitrification of marine vessel exhaust, which belongs to the field of the air pollution control and the marine vessel exhaust emission control. In the method, exhaust passes through a spray humidification and cooling zone, an ozone decomposition and free radical oxidation zone and a seawater washing zone in sequence, thereby realizing synchronous desulfurization and denitrification. The spray humidification and cooling zone which consists of a small seawater pump, an exhaust humidification and cooling pipeline and a spray nozzle can humidify and cool the exhaust; the ozone decomposition and free radical oxidation zone which consists of an ozone decomposition and free radical oxidation device, an ultraviolet lamp and an ozone generator can rapidly convert SO2 and NO into hydroxyl acid and nitric acid through hydroxyl and the like; and the seawater washing zone which consists of a seawater washing tower, a filler and a large seawater pump can convert the hydroxyl acid and the nitric acid into sulfate and nitrate and discharge the exhaust and washing water meeting standards. The synchronous desulfurization and denitrification system formed through the invention has the advantages that the size is small, no seawater quality restoration system and raw material storage and transportation are needed, the products can be directly discharged into the sea, and the like.
Owner:WUHAN TEXTILE UNIV
Method for preparing low molecular weight brown seaweed fucoidan sulfate
InactiveCN101962415AAutomatically consumed completelyEffective separation and purificationAntiviralsAntineoplastic agentsSulfated polysaccharidesSeparation technology
The invention relates to a method for preparing low molecular weight brown seaweed fucoidan sulfate. The method comprises a step of oxidatively degrading brown seaweed sulfated polysaccharides by hydroxyl radical and a step of ultrafiltration membrane separation and purification, wherein raw sugar of the brown seaweed sulfated polysaccharide is used as a raw material, the hydroxyl radical generated by the reaction of copper ions and hydrogen peroxide is adopted to oxidatively degrade the raw sugar of the brown seaweed sulfated polysaccharide, and the membrane separation technology is combined in the method for preparing the low molecular weight fucoidan sulfate from the brown seaweeds. In the preparation process, the oxidizing speed is uniform, the reacting condition is mild, and the controllability and repeatability are good; the copper ions are removed by a chelating column after the oxidation reaction is finished, so the operation process is simple. Furthermore, the pH value is adjusted by adding little acid and alkali, so the salt content in the product is low, and can be completely removed by a 300Da ultrafiltration membrane in the ultrafiltration membrane separation and purification process. The ultrafiltration membrane can effectively separate and purify the brown seaweed fucoidan with different molecular weights along with high separating speed and large treatment amount. The method is suitable for industrial production.
Owner:OCEAN UNIV OF CHINA
Adenovirus formulations
InactiveUS7456009B2Improve stabilityIncrease storage spaceBiocideViral antigen ingredientsNon ionicSugar
The invention relates to viral formulations and related pharmaceutical products for use in gene therapy and / or vaccine applications. Especially preferred viral formulations disclosed herein are liquid adenovirus formulations, which show improved stability when stored in about the 2-8° C. range while also being compatible with parenteral administration. These formulations comprise a buffer, a sugar, a salt, a divalent cation, a non-ionic detergent, as well as a free radical scavenger and / or a chelating agent to inhibit free radical oxidation.
Owner:MERCK SHARP & DOHME CORP
Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter
ActiveCN101863589ABreak through the biochemical limitImprove biodegradabilityMultistage water/sewage treatmentChemical industryBiological filter
The invention discloses a method for the advanced treatment of wastewater. The method comprises the following steps of: 1) filtering off-standard wastewater, delivering the wastewater into a catalytic ozonation tower, and simultaneously adding ozone for contact oxidization reaction; 2) delivering the effluent of the catalytic ozonation tower into an oxidization buffer stabilization basin for stabilization; 3) and after the stabilization, delivering the effluent into a BAF basin for treatment, and delivering discharged water into a clean water basin. The method reduces the addition amount of the ozone, improves the utilization efficiency of the ozone, converts the ozone into hydroxyl radicals by using a metal catalyst, and reduces the activation energy of hydroxyl radical oxidation reaction to promote hardly biodegradable macromolecule organic substances in the wastewater to be oxidized into easily biodegradable micromolecule substances, so that the biochemical limit to refining the wastewater is broken through and the biodegradability of the wastewater is increased; and the water quality of the effluent can meet the provincial standard of Jiangsu province, namely Chemical Industry Main Water Pollutant Discharge Standard, completely by further treatment in the BAF basin.
Owner:CHINA NAT OFFSHORE OIL CORP +2
Method of preparing blueberry leaf tea beverage
InactiveCN101129152APrevent rustPrevent bacterial growthTea substituesFood preparationNervous systemProanthocyanidin
The invention relates to a blueberry leaves drink with health function based on the blueberry leaves as main material and its making method, wherein the blueberry leaves contents a great amount of flavonoid with more than 40 physiologically activities of reducing blood sugar and blood fat and resisting arrhythmia, the resisting free radical oxidation ability of the blueberry is not compared with the other anti-oxidizing agent, meanwhile there is great amount proanthocyanidins contented in the blueberry with very good health function to the nervous system for children especially for the pregnant woman conspicuously. The making method is characterized by the following: picking the blueberry leaves with more than 90 days growth; using the technique process of washing, immersing, quick freezing, disintegrating, chilling, extracting with vacuum low-temperature, freezing, filtering, allocating, flash sterilizing and germ-free canned. The invention guarantees not to damage the nutrition and effective and active substances in the material almost, which makes the product have certain health function.
Owner:LIAONING TODAY AGRI
Preparation of glyoxalinyl-containing sulphonation polyimides covalence-ionomer membrane
InactiveCN101407592AExcellent anti-free radical oxidation performanceHigh proton conductivityCell component detailsFuel cell detailsBenzoic acidCross-link
The invention relates to a preparation method of a covalent-ion cross-linked film of sulfonated polyimide containing imidazolyl. The preparation method comprises the following steps: 1, 4, 5, 8-naphthoic tetracarboxylic dianhydride, sulfonated diamine, common non-sulfonated diamine and diamine containing imidazolyl are added into a metacresol medium, the sulfonated polyimide containing imidazolyl is obtained by copolycondensation under the presence of triethylamine and benzoic acid and the protection of nitrogen; a solution casting method and proton exchange are adopted to prepare non-covalent cross-linked sulfonated polyimide film containing imidazolyl which is then processed by methane-sulfonic acid / phosphorus pentoxide solution or phosphoric acid solution or polyphosphoric acid containing phosphorus petoxide so as to prepare the covalent-ion cross-linked film of sulfonated polyimide containing imidazolyl. The covalent-ion cross-linked film obtained by the preparation method has anti-free radical oxidation susceptibility which is far better than the common sulfonated polyimide or non-covalent cross-linked film without containing imidazolyl and has potential application prospect in the fields of fuel cells and the like.
Owner:SHANGHAI JIAO TONG UNIV
Controlled free radical agent for nanocomposite synthesis
InactiveUS6998452B1Increase profitLow densitySilicon organic compoundsSpecial tyresSilanesTrithiocarbonic acid
This invention relates to a process for producing a free radical control agent of the structural formula: wherein Z is selected from the group consisting of wherein R1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl; wherein R2 is an alkoxy group of 1 to 8 carbon atoms or a cycloalkoxy group of 5 to 8 carbon atoms; wherein Alk is a divalent hydrocarbon of 1 to 18 carbon atoms; and wherein Y represents a functional group that is capable of activating a vinylic carbon toward free radical addition; said process comprising the steps of (1) reacting a mercaptosilane of the structural formula: Z-Alk-SH with carbon disulfide in the presence of a phase transfer catalyst and an alkali metal hydroxide to produce a trithiocarbonate salt; and (2) reacting the trithiocarbonate salt with a halogen containing compound of the structural formula X-Y to produce the free radical control agent, wherein X represents a halogen atom. Such free radical control agents are capable of covalently bonding to silica / silicate surfaces and are of particular benefit in producing rubbery compounds that will be loaded with silica fillers, such as tire tread rubbers.
Owner:THE GOODYEAR TIRE & RUBBER CO
Method for purifying flue gas through activating persulfate by ozone, and apparatus thereof
ActiveCN104043325ATo achieve the purpose of removalNo secondary pollutionDispersed particle separationAir quality improvementSulfate radicalsAmmonium nitrate
The invention discloses a method for purifying flue gas through activating persulfate by ozone, and an apparatus thereof. Ozone in the flue gas contacts with persulfate in a solution in a bubbling-spray two stage reactor to generate sulfate radicals and hydroxy groups having strong oxidizability in order to oxidize and remove SO2, NOx, mercury, H2S and VOCs in the flue gas; and a reaction product solution enters a mercury separation tower to remove mercury, a mercury removed sulfuric acid and nitric acid solution enters an ammonia feeding tower, an ammonium sulfate and ammonium nitrate solution generated through the above reaction enters a product crystallization tower, and a flue gas waste heat utilizing device is used to evaporate and crystal recyclable agricultural fertilizers ammonium sulfate and ammonium nitrate. In the invention, ozone is adopted to induce persulfate to generate the sulfate radicals and hydroxy groups having extremely strong oxidizability, and the oxidbillities of the sulfate radicals and the hydroxy groups are second to that of fluorine, and are far higher than that of single ozone or persulfate, so the five pollutants can be efficiently simultaneously removed.
Owner:JIANGSU UNIV
Immunocompatible amniotic membrane products
InactiveUS20150010610A1Reduce the amount requiredReduced activityBiocidePeptide/protein ingredientsObstetricsTissue repair
Provided herein is a placental membrane product comprising an immunocompatible amniotic membrane. Such placental membrane products can be cryopreserved and contain therapeutic factors and viable cells after thawing. The placental membrane products are useful in wound healing and tissue repair / regeneration as they are capable of promoting angiogenesis, reducing inflammation, inhibiting proteases and free radical oxidation, reducing scar formation, and other methods that promote healing. The present technology relates to products to protect injured or damaged tissue, or as a covering to prevent adhesions, to exclude bacteria, to inhibit bacterial activity, and / or to promote healing or growth of tissue. The field also relates to methods of manufacturing and methods of use of such membrane-derived products.
Owner:OSIRIS THERAPEUTICS
Hydrogen sulfide removal method based on photocatalytic spraying
Owner:JIANGSU UNIV
3D NAND flash memory channel hole preparing method and 3D NAND flash memory
ActiveCN107731849APrevent crystallizationGood molding uniformitySolid-state devicesSemiconductor/solid-state device manufacturingHydrofluoric acidBlocking layer
The invention provides a 3D NAND flash memory channel hole preparing method and 3D NAND flash memory. The method comprises the steps of conducting deposition in a channel hole of a substrate stackingstructure, and respectively forming a blocking layer, an accumulating layer, and a tunneling layer; conducting deposition of a first polysilicon layer; conducting low-temperature free radical oxidation on the polysilicon layer of the first deposition, and forming a masking oxide layer; conducting etching on the masking oxide layer, the first polysilicon layer, the tunneling layer, the accumulatinglayer and the blocking layer at the bottom part of the channel hole until a silicon epilayer is exposed and over etching is conducted on the silicon epilayer at a certain depth; Removing the maskingoxide layer and conducting pre-cleaning before the deposition of a second polysilicon layer; conducting deposition on the second polysilicon layer. The invention is advantageous in that as the low-temperature free radical oxidation technology is adopted to form the masking oxide layer and diluted hydrofluoric acid is adopted to conduct the pre-cleaning of the second polysilicon layer before deposition, the step of etchback of the polysilicon can be saved, and the channel hole polysilicon layer with good uniformity and high quality can be formed, and cost is low and reliability is high.
Owner:YANGTZE MEMORY TECH CO LTD
Treatment method of complexing nickel wastewater
InactiveCN106495377AReduce processing costsGuaranteed uptimeWater treatment compoundsWater contaminantsSulfate radicalsTherapeutic effect
The invention discloses a treatment method of complexing nickel wastewater. Compared with the prior art, Fe is loaded on granular active carbon, and a supported Fe2O3.FeO / GAC catalyst is prepared, a heterogeneously activated persulfate system generates sulfate radical free radicals with the strong oxidizing property to oxidize complex form heavy metals in the wastewater, by damaging the stable structure of complexing ions, the heavy metals are freed from complex, and the heavy metals are removed through a simple alkaline chemical precipitation method. The Fe2O3.FeO / GAC activated persulfate coupling system is established, the pH value of the wastewater is adjusted through the actual condition of the wastewater during wastewater treatment, a good treatment effect can be achieved, the catalyst still has good catalytic activity after being reused, and the wastewater treatment cost can be greatly reduced. A large amount of equipment investment and operating cost is not needed, materials are easy to take, and operation is simple. The active carbon carrier can be reused, resource reuse is achieved, and cost is reduced.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Electro-Fenton method and apparatus for removing multi-algae toxins from water
InactiveCN1629083APrecisely control outputPrecise control of degradation rateWater/sewage treatment by sorptionWater/sewage treatment by oxidationFiberActivated carbon
The invention provides an electro-Fenton method and apparatus for removing multi-algae toxins from water, wherein the method comprises, using the shape stabilized electrode as the anode for the reactor, using activated carbon fiber as the cathode, letting in quantitative oxygen to the cathode surface, charging small amount of ferrous salt into the algae-containing toxin solution with pH=3 as catalyst, galvanizing electrolyzation to remove the algae toxin.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Method for removing polyacrylamide and other organic matters in oilfield exploration water and electrochemical reactor
InactiveCN101041490AIncreased turbulenceIncrease mass transfer rateWater contaminantsWater/sewage treatment by electrochemical methodsElectrochemical responseElectrochemistry
The invention discloses a method to remove polyacrylamide and other organic matter in oil field produced water and electrochemical reactor to accomplish this method, which comprises the following steps: injecting tertiary produced water into electrochemistry reactor with catalytic anode; exerting direct current voltage; generating hypochlorous acid; forming strong oxidizer; advancing degradation of organic matter; oxidative disintegrating more polyacrylamide and other organic matter to small molecule organic matter by generated hydroxyl free radical of polarized catalyze anode; mineralizing most of organic matter; removing. This invention can make COD value of oil field poly waste water down to about 100mg / L and each index reach one level discharge standard of nation.
Owner:DAQING GASOLINEEUM INST
Scutellarein derivative, its preparing process and application
The invention discloses a novel scutellarein derivative, the method for preparing the same and the application. It is proved through pharmacological test that the compound possesses obvious effect against lipid peroxidation, effect against cell damage induced by H2O2 and cell apoptosis induced by A beta, it can also inhibit Cu2+ from inducing oxidation and modification for low density lipoprotein. The compound can be used to prepare medicine that can prevent or treat neurodegenerative diseases such as Alzheimer's disease caused by free radical oxidation, and medicine that can treat inflammation, reduce blood fat and treat atherosclerosis.
Owner:SHANGHAI INST OF MATERIA MEDICA CHINESE ACAD OF SCI
Dehydrosilibinin diester derivatives, preparation method and use thereof
InactiveCN101104616AAntioxidantFree radical scavenging activityOrganic active ingredientsNervous disorderSuperoxideHydrazine compound
The present invention relates to an anti-free radical oxidation, liver-protective, senile dementia preventing and anti-aging active dehydrogenation silybin double-ester derivative and the related medicinal salt or solvent compound. The invention also relates to the preparation method for the compound on the formula 1, as well as the related medication compounds and the curatorial uses. The compound of the invention can protect the liver cells of a rat liver cell injury in vitro model, which can be expected to prevent liver damage in drug use; the compound of the invention is provided with the biological activities of in vitro removing superoxide anion free radicals and diphenyl-benzyl-hydrazine free radicals, and restraining generation of grease peroxide induced by free radicals. The compound can strongly confront the PC12 cells damage caused by free radicals, which can be expected to prevent various diseases caused by free radicals in drug use.
Owner:ZHEJIANG UNIV
Process for purifying nitrogen-containing organic waste gas by adopting photon-generated ozone catalytic oxidation coupled biological method
InactiveCN105771574AEffective control of the generation ofProduction controlGas treatmentDispersed particle filtrationHigh energyCatalytic oxidation
The invention relates to a process for purifying nitrogen-containing organic waste gas by adopting a photon-generated ozone catalytic oxidation coupled biological method.The process adopts a photon-generated ozone catalytic oxidation unit and a biological treatment unit which are connected in series, wherein the photon-generated ozone catalytic oxidation unit is composed of a fan, a housing, a filter layer, ultraviolet lamps and a catalyst.The serially connected biological treatment unit is composed of packed towers, a packing and spraying heads.The process utilizes the front-arranged photon-generated ozone catalytic oxidation unit to make oxygen produce free radicals having strong oxidizing properties and ozone in the waste gas under the high-energy ultraviolet light effect and produce free radicals having strong oxidizing properties under the effect of the catalyst and convert pollutants into carbon dioxide, water and intermediate products under the effects of an interaction mechanism of light oxidation, free radical oxidation, ozone oxidation and ozone catalytic oxidation, then makes products enter the serially connected biological treatment unit for subsequent degradation and finally makes the products become non-toxic harmless substances.
Owner:BEIJING UNIV OF CHEM TECH
Use of quinol derivatives thereof for cosmetic, dietary supplement or pharmaceutical compositions and compositions thereby obtained.
InactiveUS20070072940A1Prevent and treat environmental damagePrevent and treat and aging in skinCosmetic preparationsOrganic active ingredientsWrinkle skinQuinone
The present invention relates to a cosmetic, dietary supplement, or pharmaceutical composition for oral ingestion or topical application to the skin comprising effective amounts of a tocopherol quinone, tocopherol quinol, plastoquinol, menaquinol, or phylloquinol compound, or any combination thereof as a method for preventing free radical oxidation or preventing or treating environmental skin damage including photoaging, trauma, discoloration, dryness, thickness, elasticity, or wrinkles.
Owner:ABRAHAM
Method for degrading PPCPs by metal ion doped MoS2 activated monopersulfate
ActiveCN110624569APromote activationLarge specific surface areaPhysical/chemical process catalystsWater contaminantsPersulfateSource material
The invention discloses a method for degrading PPCPs by metal ion doped MoS2 activated monopersulfate, and belongs to the field of sewage treatment. Metal ions are used for doping MoS2 to generate more sulfur holes and metal ions with different valence states, so that monopersulfate can be well activated to form free radicals, and pollutants are oxidized and degraded by utilizing the free radicals. Molybdenum salt and sulfur source materials for synthesizing the catalyst are low in cost, fewer catalysts are added, and economic benefits are achieved. The method disclosed by the invention showsa wide application prospect in treating organic pollutants in water bodies.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Preparation method of common bombax flower extract with whitening and anti-aging activities, and application thereof in cosmetics
The invention discloses a preparation method of a common bombax flower extract with whitening and anti-aging activities. The preparation method is characterized in that dried common bombax flowers are crushed and sieved; the common bombax flower is subjected to ethanol soaking extraction twice; extracted liquids obtained in the two times are combined; reduced-pressure concentration is carried out, such that a suspension liquid is obtained; the suspension liquid is sequentially extracted by using petroleum ether and ethyl acetate; reduced-pressure concentration is carried out, and ethyl acetate is recovered; and a paste is obtained by vacuum drying, such that the common bombax flower extract is obtained. With the method, the prepared common bombax flower extract has anti-free radical oxidation, tyrosinase activity inhibiting, and anti-ultraviolet radiation functions, and can be used in skin whitening and aging-preventing especially photoaging-preventing. The common bombax flower extract can be used as a cosmetic additive or a medicine active component, and can be applied in whitening and anti-aging cosmetics.
Owner:GUANGZHOU HUANYA COSMETIC SCI & TECH CO LTD
Regeneration method and circulating restoration device for organic contaminated soil restoration eluate
InactiveCN102825063AAchieve regenerationRepair and regenerationContaminated soil reclamationSulfate radicalsRestoration device
The invention relates to a regeneration method and a circulating restoration device for an organic contaminated soil restoration eluate. According to the invention, the theory is as follows: on the basis of free-radical oxidation of sulfate radicals, hydrophobic organic matters in the eluate are selectively and preferably degraded. The method and the device can be used for preferably degrading pollutants in the eluate during the organic contaminated soil eluting restoration process, so that the eluate can be regenerated and recycled, and the defects of a traditional leaching process can be well solved; the regeneration of the eluate in a hydrophobic organic contaminated soil eluting restoration technology is realized, repeated eluting can be carried out, the regenerative recycling of the eluate in the eluting process is realized, the total water consumption and surfactant consumption for soil eluting can be greatly reduced, the soil restoration cost is lowered, and secondary pollution cannot be caused.
Owner:WUHAN UNIV
Encapsulated flexible polyurethane foam and method for making polyol to form foam
A cellular material. The cellular material can be the reaction product of a vegetable-based polyol made from a vegetable oil exposed to ultraviolet (UV) light, wherein a free radical oxidation reaction is catalyzed by the UV light and the vegetable oil is converted into the vegetable-based polyol; and an isocyanate.
Owner:FORD GLOBAL TECH LLC
Preparation and application of three-dimensional foam nickel-based nitrogen-doped graphene aerogel
InactiveCN108525615ALarge specific surface areaHigh mechanical strengthPhysical/chemical process catalystsCarbon compoundsDoped grapheneNitrogen doped graphene
The invention relates to preparation and application of three-dimensional foam nickel-based nitrogen-doped graphene aerogel. A preparation method comprises the following steps: preparing graphene oxide by adopting an improved Hummers method; after washing and etching foam nickel, adding the foamed nickel into a mixed solution of graphene oxide, a nitrogen source, a reducing agent and a crosslinking agent and carrying out self-assembling reaction of graphene; freezing and drying generated graphene gel to obtain the foamed nickel-based nitrogen-doped graphene aerogel. According to the preparation method provided by the invention, a compound catalyst is added into high-salt dyestuff wastewater and can be used for degrading a dyestuff adsorbed on the aerogel, so that harmless degradation is realized. The catalyst provided by the invention has the advantages of high catalytic efficiency, good reusability and the like; especially, the technical problems that a traditional nano / micron-size cobalt catalyst is not easy to recycle, the mechanical strength of the graphene aerogel is low, a high-toxicity organic halogenated byproduct and the like are easy to produce when the high-salt dyestuffwastewater is subjected to free radical oxidization degradation are prominently overcome; the catalyst can be applied to the field of treatment of the high-salt dyestuff wastewater.
Owner:NORTHEAST GASOLINEEUM UNIV
Combined marine and plant extract compositions
A composition comprising cartilage extract, grape seed extract and tomato extract was found to have remarkable anti-oxidant effect and free-radical inhibition. The tomato extract comprises lycopene. The composition which comprises a hydrophilic antioxidant, a lipophilic (hydrophobic) antioxidant, and a cartilage extract dramatically increases collagen synthesis in the dermis. Furthermore, the composition lowers collagenase activity and levels of advanced glycation end products (AGE). The signs of ageing, such as photoageing due to exposure to UV radiation, are related to the levels of collagen syntheses and free-radical oxidation. Compositions of the invention are intended for the treatment of ageing skin and the delaying of the onset of the signs of ageing in healthy skin.
Owner:OLSON BENGT KRISTER
Method for processing low concentration arsenide in water
InactiveCN105130048AGood removal effectGood flocculation and sedimentation effectMultistage water/sewage treatmentHigh concentrationSolubility
The invention discloses a method for processing low concentration arsenide in water. The water is suitable for processing low concentration arsenide in water, or carrying out deep treatment on high concentration arsenic-containing wastewater. The method organically combines a traditional flocculation coprecipitation technology with a hydroxyl free radical oxidation system, iron ions and hydrogen peroxide form hydroxyl free radicals with extremely strong oxidizability, a Fe-(.OH) reaction system composed of the iron ions and hydroxyl groups can efficiently complete conversion of trivalent arsenic, an iron ion complex generated in the .OH generation process continuously participates in a reaction to generate FeAsO4 with very small solubility, and the arsenide is removed in a precipitate form. The method enhances the adsorption and coacervation effects of fine particles difficult to settle, and the processed arsenide concentration can meet III type water quality requirements in Underground Water Quality Standard (GB / T14848-93).
Owner:CHANGCHUN GOLD RES INST
Caprolactam sewage advanced treatment method using ozone catalytic oxidation
InactiveCN104787924AAchieve in-depth processingReduce oxidative loadWater contaminantsMultistage water/sewage treatmentOrganic matter mineralizationCatalytic oxidation
A caprolactam sewage advanced treatment method using an ozone catalytic oxidation technology is characterized in that the process flow of the method comprises the following steps: 1, pretreated caprolactam sewage is elevated through an inlet water elevator pump and enters a filter 3; 2, water discharged from the filter 3 automatically flows into an ozone catalytic oxidation tank 4, and ozone is introduced into the ozone catalytic oxidation tank 4 through an ozone generator 7 in order to carry out an ozone catalytic oxidation reaction; and 3, oxidized outlet water automatically flows into a clear water pool 5, air is pressed in through using a compressed air pump 8, and a backwash pump 6 backwashes clear water flowing from the ozone catalytic oxidation tank into the clear water pool 5 to the ozone catalytic oxidation tank 4 in order to accelerate oxidation. A metal ion supported catalyst is adopted in the invention, catalyzes generation of hydroxy free radicals from ozone, and reduces the activation energy of the oxidation reaction of the hydroxy free radicals, so organic matters difficult to degrade in the caprolactam sewage are mineralized and removed, or are directly oxidized and decomposed to form H2O and CO2.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Acanthopanan trifoliatus extract, and preparation method and application thereof
ActiveCN102920759AHas anti-inflammatory and antioxidant capacityStrong anti-inflammatory and antioxidant capacityCosmetic preparationsAntipyreticPharmaceutical drugEthyl acetate
The invention provides an acanthopanan trifoliatus extract, and a preparation method and an application thereof. According to the invention, acanthopanan trifoliatus entire plant is weighed and is soaked by using ethanol; rotary evaporation concentration is carried out, and a water solution is obtained; the water solution is sequentially extracted by using petroleum ether, ethyl acetate, and n-butanol; and an obtained extraction liquid is subjected to reduced-pressure distillation, such that a paste is obtained, wherein the paste comprises petroleum ether extract, ethyl acetate extract, n-butanol extract, and water-soluble matter. Through a free radical oxidation resistance experiment, a macrophage growth experiment, a NF-kB nuclear transcription factor inhibition experiment, and an Erk1 / 2 activation effect experiment, it is verified that the acanthopanan trifoliatus extract has anti-oxidative and anti-inflammatory capacities. Inflammatory-treating medicines or anti-oxidative cosmetics or foodstuff compositions with added acanthopanan trifoliatus and extracts thereof are provided with anti-inflammatory and anti-oxidative effects. The acanthopanan trifoliatus extract can be used in inflammation-controlling or aging-controlling cosmetics, medicines, vegetable beverages and health-care foodstuffs.
Owner:GUANGDONG UNIV OF TECH +2
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