50 results about "Organophosphonates" patented technology

In one embodiment, a method of treating a subterranean formation is provided comprising the steps of providing a gelled liquid hydrocarbon treatment fluid comprising a liquid hydrocarbon and a gelling agent that comprises a polyvalent metal salt of an organophosphonic acid ester or a polyvalent metal salt of an organophosphonic acid, and treating the subterranean formation with the gelled liquid hydrocarbon treatment fluid. The gelled liquid hydrocarbon treatment fluids are suitable for use in subterranean treatment operations, such as subterranean stimulation and sand control treatments like fracturing and gravel packing, that may be carried out in subterranean formations for the production of hydrocarbons. The compositions and methods also may be suitable, for example, to be used as plugging agents, well bore cleanup fluids, viscous sweep fluids, or insulating fluids to be used in associated methods.

A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a lanthanide-based catalyst system including the combination or reaction product of: (a) a lanthanide compound selected from the group consisting of lanthanide organophosphates, lanthanide organophosphonates, and lanthanide organophosphinates, (b) an alkylating agent, and (c) a chlorine-containing compound, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of solvent based on the total weight of the polymerization mixture.

An ionic liquid composition having the following generic structural formula:wherein R1, R2, R3, and R4 are equivalent and selected from hydrocarbon groups containing at least three carbon atoms, and X− is a phosphorus-containing anion, particularly an organophosphate, organophosphonate, or organophosphinate anion, or a thio-substituted analog thereof containing hydrocarbon groups with at least three carbon atoms. Also described are lubricant compositions comprising the above ionic liquid and a base oil, wherein the ionic liquid is dissolved in the base oil. Further described are methods for applying the ionic liquid or lubricant composition onto a mechanical device for which lubrication is beneficial, with resulting improvement in friction reduction, wear rate, and / or corrosion inhibition.

The invention discloses a method for synthesizing phosphonate ester derivates, comprising: taking one of phosphorous acid esters and one of styrene derivates as reactants, trivalent manganese acetate as a radical initiator, and acetic acid as a solvent, and preparing the phosphonate ester derivates through the reaction at a temperature of between 70 and 90 DEG C; the method improves the selectivity of addition reaction and increases the yield; and has the advantages of simple operation and mild reaction conditions additionally; meanwhile, substrates of the reactants are various, resulting in the diversity of novel structures of phosphonate ester derivates.

A composition containing titanic oxide grain encapsulated by pyrolytic monox and its productionby organic additive treatment are disclosed. The material consists of organic silane, organic siloxane, fluoro-silane, organic phosphate, organic acid phosphate, organic pyrophosphate, organic poly-phosphate, organic metaphosphate, organic hypophosphite, organic sulfonic acid compound, sulfcarboxylic acid, hydrocarbyl carboxylic acid ester, hydrocarbyl carboxylic acid derivatives, hydrocarbyl amide, low-molecular-weight hydrocarbon wax, low-molecular-weight polyolefine, low-molecular-weight polyolefine multi-polymer, hydrocarbyl polyol, hydrocarbyl polyol derivative, alkanolamine, alkanolamine derivative, organic dispersant or their mixtures.

An anti-corrosion composition for use with a liquid or the liquid resulting from the addition of components is provided. The composition can comprise an acid, a phosphate ester of the acid, an inorganic phosphate, a salt of polyacrylates and a salt of an organophosphonate. The composition can be used with anti-freeze compositions or heat transfer fluids and advantageously exhibits enhanced corrosion resistance properties.

This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatoghraphy, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or phenol groups, having the general structure: wherein n is an integer greater than 1; wherein at least one of R1 and R2 is a linear or branched arm having at least one group independently selected from the group consisting of alkyl, alkenyl, alkynyl, and aryl groups, or combinations thereof, and having at least one halogen substituted alcohol or phenol groups attached thereto; wherein any said R1 and R2 aryl groups are attached to said [Si—X-]n either directly or through a short hydrocarbon chain; wherein any remaining said R1 or R2 group is a hydrocarbon or carbosilane group; wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and combinations thereof; and wherein Z1 and Z2 are end groups independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, alkyl silanes, aryl silanes, hydroxyl, silicon hydride, alkoxides, phenols, halogen substituted alcohols, halogen substituted phenols, organosilyl, and combinations thereof. These polymeric materials are primarily designed to sorb hydrogen bond basic analytes such as organophosphonate esters (nerve agents and precursors) and nitro-substituted compounds (explosives).

The present invention provide a composition for a chemical conversion treatment capable of forming a chemical conversion film having both an excellent black appearance such that the L-value of the film is 28 even when the film is formed from the composition which has been aged, and good corrosion resistance. The composition is a water-soluble composition and comprising a trivalent chromium-containing substance, a cobalt-containing substance, a sulfur compound, and an organic phosphonate compound consisting of one or more compounds selected from the group consisting of organic phosphonic acids, ions of organic phosphonic acids, and organic phosphonates, and a nickel-containing substance as needed. It is preferable that the content of the trivalent chromium-containing substance be 1 to 10 g / L in chromium content equivalent, that the content of the cobalt-containing substance be 0.1 to 10 g / L in cobalt content equivalent, that the content of the sulfur compound be 0.1 to 10 g / L, and that the content of the organic phosphonate compound be 0.1 to 20 g / L. When the composition further contains a nickel-containing substance, the content in nickel content equivalent is preferably 0.10 to 10 g / L.

This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatoghraphy, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or phenol groups, having the general structure:wherein n is an integer greater than 1;wherein at least one of R1 and R2 is a linear or branched arm having at least one group independently selected from the group consisting of alkyl, alkenyl, alkynyl, and aryl groups, or combinations thereof, and having at least one halogen substituted alcohol or phenol groups attached thereto;wherein any said R1 and R2 aryl groups are attached to said [Si—X—]n either directly or through a short hydrocarbon chain;wherein any remaining said R1 or R2 group is a hydrocarbon or carbosilane group;wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and combinations thereof; andwherein Z1 and Z2 are end groups independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, alkyl silanes, aryl silanes, hydroxyl, silicon hydride, alkoxides, phenols, halogen substituted alcohols, halogen substituted phenols, organosilyl, and combinations thereof.These polymeric materials are primarily designed to sorb hydrogen bond basic analytes such as organophosphonate esters (nerve agents and precursors) and nitro-substituted compounds (explosives).

The invention provides a method for efficiently and selectively synthesizing diaryl methyl substituted organic phosphonate derivatives containing different substitute functional groups. The method uses cesium carbonate as a catalyst, and uses a P (O)-H compound and 4-arylmethylene-2, 6-di-tert-butyl 2, 5-cyclohexadiene-1-ketone compounds as reactants; an organic solvent is added into a reaction system. The method has the advantages that the catalyst is cheap and easy to obtain; the reactants are high in applicability; the reaction is mild in conditions, safe and reliable; the selectivity of the obtained target product is close to 100%, and the yield is as high as 90% or above. The method solves the problems that the conventional synthetic diaryl methyl substituted organic phosphonate derivatives are poor in reaction selectivity, tedious in reaction steps and low in yield, needs to use environmentally harmful reagents, and the like; the method has a good industrial application prospect.The invention also provides the corresponding diaryl methyl substituted organic phosphonate derivatives containing the different substitute functional groups.

An ionic liquid composition having the following generic structural formula:wherein R1, R2, R3, and R4 are equivalent and selected from hydrocarbon groups containing at least three carbon atoms, and X− is a phosphorus-containing anion, particularly an organophosphate, organophosphonate, or organophosphinate anion, or a thio-substituted analog thereof containing hydrocarbon groups with at least three carbon atoms. Also described are lubricant compositions comprising the above ionic liquid and a base oil, wherein the ionic liquid is dissolved in the base oil. Further described are methods for applying the ionic liquid or lubricant composition onto a mechanical device for which lubrication is beneficial, with resulting improvement in friction reduction, wear rate, and / or corrosion inhibition.

Method of treating a subterranean formation using a hydrocarbon treatment fluid using a phosphor-based hydrocarbon gelling agent that is capable of both increasing the viscosity of the hydrocarbon treatment fluid and remaining in the subterranean formation after the viscosity of the gel is broken such that it can act as a scale inhibitor. Phosphor-based hydrocarbon gelling agents may be formed from a polyvalent metal salt of an organophosphonic acid ester or from a polyvalent metal salt of an organophosphinic acid.

This invention provides oligomeric hydrogen phosphonates represented by the formula (I) where R is an alkyl group having one to about six carbon atoms; R′ is a linear or branched hydrocarbylene group or an oxygen-containing hydrocarbylene group having two to about twenty carbon atoms or a hydrocarbylene group having at least one cycloaliphatic or aromatic ring, where at least one of R′ is a linear or branched hydrocarbylene group or an oxygen-containing hydrocarbylene group and at least one of R′ is a hydrocarbylene group having at least one cycloaliphatic or aromatic ring; and n is a number from 2 to about 20. Also provided are processes for making these oligomeric hydrogen phosphonates, oligomeric organophosphonate compositions, and processes for making these oligomeric organophosphonate compositions.

The invention provides an oligomeric organic phosphate preparation method. The preparation method comprises the following steps: 1, weighing dimethyl methylphosphonate and phosphorus pentoxide according to a mole ratio of 1.0:1.0-1.3:1.0, and reacting at 85-90DEG C; 2, cooling a reaction solution obtained in step 1 to 40-50DEG C, and adding a hydroxyl-containing compound; 3, adding trialkylphosphite to a reaction solution obtained in step 2; 4, heating a reaction solution obtained in step 3 to 40-120DEG C in a closed environment, and letting in oxirane for 2-3h while controlling the pressure to reach the slow rising of the pressure until the final pressure in a kettle is maintained in a range of 0.1-1.0MPa; and 5, stopping reacting when the hydroxyl value of a product is between 130 and 150 and the acid value of the product is 5-25mgKOH / g to obtain the product. The preparation method greatly shortens the time of the reaction with oxirane after the reaction of the organic phosphorus compound and phosphorus pentoxide and saves the production time and the production cost through reaction conditions comprising a high temperature and a high pressure without a catalyst, and is suitable for the industrialized production.

Method of treating a subterranean formation using a hydrocarbon treatment fluid using a phosphor-based hydrocarbon gelling agent that is capable of both increasing the viscosity of the hydrocarbon treatment fluid and remaining in the subterranean formation after the viscosity of the gel is broken such that it can act as a scale inhibitor. Phosphor-based hydrocarbon gelling agents formed from a polyvalent metal salt of an organophosphonic acid ester or from a polyvalent metal salt of an organophosphinic acid are described.

A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a lanthanide-based catalyst system including the combination or reaction product of: (a) a lanthanide compound selected from the group consisting of lanthanide organophosphates, lanthanide organophosphonates, and lanthanide organophosphinates, (b) an alkylating agent, and (c) a chlorine-containing compound, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of solvent based on the total weight of the polymerization mixture.

The invention relates to a method for preparing a stabilizing agent for an antifreeze, in particular to a method for preparing a stabilizing agent for a silicon antifreeze, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: adopting a phase transfer catalyst as a catalyst accelerator to accelerate the reaction of halogenated silane and organic phosphonate, and removing chloride contents in a residual product through nitrogen and flash evaporation. The method has the advantages that the method can effectively improve the selectivity and yield of the reaction under the proper temperature, mainly can effectively reduce the content of chlorine hydride in the product to obtain the stabilizing agent applicable to the silicon antifreeze, and has high yield; and the purity of the obtained stabilizing agent for the silicon antifreeze is not less than 76 percent per mole.

The invention relates to a reactive flame-retardant organic phosphonate compound and a preparation method thereof. Please see the formula of the structure of the compound in the specification. The preparation method includes the steps that air in a reactor with a fractional device is replaced with nitrogen, the molecular ratio of tri-methylol propane to dimethyl methylphosphonate is controlled to be 1:1-1:1.3, then organic solvents and catalysts are added, temperature is raised to 80-140 DEG C, the temperature of the top of a fractional column is controlled to be not higher than 65 DEG C, generated methyl alcohol is fractionated, a fractional reaction is carried out for 5-10 h until no methyl alcohol is generated, and reactive flame retardant organic phosphonate is obtained through purification. The reactive flame-retardant organic phosphonate compound has good plasticity, good in macro-molecular compatibility, suitable for flame retardants of polyester PBT, polyurethane, epoxy resin, unsaturated resin and other materials, low in production cost, small in equipment investment and very good in application and development prospect, raw materials are easy to obtain, and large-scale production is easy.

The invention discloses a polyionic liquid modified nano material, a preparation method thereof and application of the material in enrichment of phosphorylated peptide in a sample containing phosphorylated peptide. The preparation method comprises the following steps: (1) polymerizing a vinyl-modified substrate material, vinyl and organic phosphonate functionalized ionic liquid to obtain a polyorganic phosphonate ionic liquid functionalized material; and (2) acidifying and hydrolyzing the polyorganic phosphonate ionic liquid functionalized material, and then combining with metal ions to obtainthe affinity material of the polyorganic phosphonate functionalized ionic liquid. The functionalized material prepared by the method is easy to separate, has better hydrophilicity, metal ion immobilization capability, acid and alkali resistance, stability and good specific selectivity, and is suitable for enrichment and purification of phosphorylated peptides of complex biological samples. The material has a wide application prospect in the field of biomedicine.

The present invention provide a composition for a chemical conversion treatment capable of forming a chemical conversion film having both an excellent black appearance such that the L-value of the film is 28 even when the film is formed from the composition which has been aged, and good corrosion resistance. The composition is a water-soluble composition and comprising a trivalent chromium-containing substance, a cobalt-containing substance, a sulfur compound, and an organic phosphonate compound consisting of one or more compounds selected from the group consisting of organic phosphonic acids, ions of organic phosphonic acids, and organic phosphonates, and a nickel-containing substance as needed. It is preferable that the content of the trivalent chromium-containing substance be 1 to 10 g / L in chromium content equivalent, that the content of the cobalt-containing substance be 0.1 to 10 g / L in cobalt content equivalent, that the content of the sulfur compound be 0.1 to 10 g / L, and that the content of the organic phosphonate compound be 0.1 to 20 g / L. When the composition further contains a nickel-containing substance, the content in nickel content equivalent is preferably 0.10 to 10 g / L.

The invention relates to a green method for recovering rare earth from waste fluorescent powder and application of the green method. The green method comprises the following steps: (1) mixing the waste fluorescent powder and alkali and melting to obtain an alkali melt; (2) adding water into the alkali melt obtained in the step (1) for water leaching and separation, obtaining a water-leaching insoluble matter and a water leaching liquid and adding acid into the water-leaching insoluble matter for acid leaching and separation to obtain an acid-leaching insoluble matter and an acid leaching liquid; (3) extracting rare earth ions in the acid leaching liquid by using an extracting agent to obtain raffinate and extracting liquid loaded with the rare earth ions, wherein the extracting agent comprises: (A) quaternary phosphonium ionic liquid and / or quaternary ammonium ionic liquid; (B) neutral organic phosphonate; the ionic liquid is taken as the extracting agent; (4) performing reverse extraction on the extracting liquid obtained in the step (3) with water to obtain an ionic liquid phase and a water phase containing the rare earth ions. The final rare earth recovery rate reaches 90 percent by weight or above, the extracting process is not required to be saponified, no acid or alkali consumption is generated, no ammonia-nitrogen wastewater is generated, and the completely-reverse extraction can be realized with the water.

A non-aqueous electrolytic solution for use in a lithium secondary battery has reduced or eliminated flammability and increased capacity retention. The electrolytic solution includes a lithium salt, a carbonate, a substituted phosphazene, a fluorinated solvent such as fluorinated carbonate, fluorinated ether, and fluorinated ester, and an organic phosphate or organic phosphonate such as fluorinated alkyl phosphate, fluorinated aromatic phosphate, fluorinated alkyl phosphonate, or fluorinated aromatic phosphonate.

The invention discloses a stabilizer of a long-acting anti-freezing solution. The stabilizer is prepared from, by mass, 25-30% of (3-Chloropropyl)trimethylsilane, 25-60% of organophosphorous phosphate, 0.1-1.5% of organic amine catalyst, 1.0-1.5% of tetrabutylammonium bromide or benzyl triethyl ammonium chloride, 3-5% of diatomaceous earth, 1-2% of potassium hydroxide, 1-2% of ethanediol, 0.1-1% of corrosion inhibitor, 0.1-1% of defoaming agent, 0.1-1% of dye and the balance deionized water. The organic amine catalyst is at least one of n-butylamine or N,N-dimethyl benzylamine. Organophosphorous phosphate is at least one of dimethylphosphoryl or diethyl phosphate. Organosilane type derivatives are added to the inorganic salt silicon type anti-freezing solution, and therefore it is well prevented that the stabilizer of the anti-freezing solution is produced according to the gelatinization tendency principle of silicate; meanwhile, a corrosion inhibitor is added to the stabilizer, and therefore the working time of the whole stabilizer is prolonged.

A method of modifying a polymer having hydroxyl groups, selected from the group of polysaccharides and lignin,to give a modified polymer comprising the step of contacting said polymer with at least one organic phosphonate salt in order to chemically modify the polymer, said organic phosphonate salt being in a liquid phase. The method of polymer modification provides novel polymers. Modified polymers obtained from a polymer having been treated with at least one organic phosphonate salt are also disclosed. The modified polymers can be used as such or separated and optionally recovered from the solution, optionally being formed into particular materials or shapes.

An agricultural micro-fertigation water includes a phosphate fertilizer, a water-soluble organic acid and a water-soluble organophosphonate, and is prepared by a method wherein the phosphate fertilizer is added to the irrigation water as a chaser to (addition with or after components of) the combination of a water-soluble organic acid and water-soluble organophosphonate to fully prevent precipitation and thus prevent plugging of a micro-irrigation system despite the addition of phosphate fertilizer in water having a precipitation factor of from 125 to 1,000 ppm, wherein said precipitation factor is a combined level of total alkalinity (as CaCO3) in ppm and total hardness (as CaCO3) in ppm.

An anti-corrosion composition for use with a liquid or the liquid resulting from the addition of components is provided. The composition can include an acid, a phosphate ester of an alcohol, an inorganic phosphate, a salt of polyacrylates and a salt of an organophosphonate. The composition can be used with anti-freeze compositions or heat transfer fluids and advantageously exhibits enhanced corrosion resistance properties. A heat transfer medium is also provide, having water, glycol, an ester of a phosphoric acid, a phosphate salt and an acid, wherein the medium is a GRAS composition capable of satisfying ASTM 1384 and 4340.

The invention belongs to the technical field of high-temperature-resistant halogen-free flame-retardant cables, and particularly relates to a high-temperature-resistant halogen-free flame-retardant cable. The cable comprises a core, the outer surface of the wire core is wrapped with a first insulating layer, and the first insulating layer is made of a halogen-free flame-retardant TPE material andis designed to be elastic. The outer surface of the first insulating layer is wrapped with an insulating inner tube, and the first insulating inner tube is made of a flame-retardant material and is designed to be elastic. According to the present invention, the high-temperature-resistant halogen-free flame-retardant cable is mainly used for solving the problems that the existing halogen-free flame-retardant cable material is added with organic phosphonate and / or a phosphorus-nitrogen intumescent flame-retardant system, so that the tensile strength and the elongation at break are greatly reduced; the existing halogen-free flame-retardant cable material still has the disadvantages of low flame-retardant grade and low temperature-resistant grade; and the flame-retardant cable in the prior arthas a certain flame-retardant effect, but is relatively single in structure, and when a fire occurs, the high temperature is resisted only by virtue of the flame-retardant effect of the cable, but the high-temperature incineration cannot be resisted for a long time, so that the cable is burnt and damaged.

The invention provides a method for efficiently and high-selectively compounding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives containing different substituting functional groups. Cesium carbonate is taken as a catalyst; chiral P(O)-H compound and 4-aryl methylene-2,6-di-tert-butyl-2,5-cyclohexadiene-1-ketone compounds are taken as reaction substrates; an organic solvent is added into a reaction system. The method has the advantages that the catalyst is low-cost and can be easily acquired; the substrates are high in applicability; the reaction conditions are mild, safe and reliable; the three-dimensional enantioselectivity of the acquired target product is above 99% and the yield is above 80%. The method can overcome the defects of low enantioselectivity, complex reaction steps, and the like, of the traditional reaction for compounding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives, can avoid the traditional chiral resolution method and has an excellent industrial application prospect. The invention also provides the corresponding chiral R- / S- diaryl methyl substituted chiral organic phosphonate derivatives containing different substituting functional groups.