Preparation process for aluminosilicophosphate molecular sieve

[0058] Inner Mongolia Hohhot coal series kaolin, kaolinite content is 92.5%.

[0059] Grind to an average particle size of less than 10 μm to obtain a ground activated powder.

[0060] Get 30.0g of grinding activation powder body, join in 200.0g deionized water, add pseudo-boehmite 16.4g (aluminum oxide content 78.0%) respectively afterwards, add 85.0% concentrated phosphoric acid 52.0g, morpholine 60.0g, get Mix slurry.

[0061] Transfer the above slurry to a 500ml resin ball mill jar, add 200g of zirconia balls with a diameter of 3mm, and mill for 8 hours in a planetary ball mill at a speed of 400r / min to obtain the initial slurry.

[0062] The above initial slurry was aged at room temperature for 24 h.

[0063] After aging, the initial slurry was transferred to a 500ml reactor lined with polytetrafluoroethylene, and crystallized at 240°C for 60h.

[0064] Suction filter the slurry after the crystallization reaction, and recover the filtrate for use. The solid filter res...

[0068] Coal-measure kaolin in Hohhot, Inner Mongolia, with a kaolinite content of 92.5%.

[0069] Grind to an average particle size of less than 50 μm, place it in a muffle furnace, and roast at 800°C for 2 hours to obtain a crushed and roasted activated powder.

[0070] Take 25.4 g of ground activated powder and add it to 200.0 g of deionized water, then add 13.0 g of activated alumina, 52.0 g of 85.0% concentrated phosphoric acid, and 60.0 g of morpholine to obtain a mixed slurry.

[0071] Transfer the above slurry to a 500ml resin ball mill jar, add 200g of zirconia balls with a diameter of 3mm, and mill in a planetary ball mill for 2 hours at a speed of 600r / min to obtain the initial slurry.

[0072] The above initial slurry was aged at room temperature for 24 h.

[0073] After aging, the initial slurry was transferred to a 500ml reactor lined with polytetrafluoroethylene, and crystallized at 200°C for 20h.

[0074] Suction filter the slurry after the crystallization rea...

[0078] Suzhou natural kaolin, kaolinite content is 90.6%.

[0079] Grind by wet ball milling until the average particle size is less than 50 μm, place it in a muffle furnace, and roast at 800°C for 2 hours to obtain crushed roasted activated powder.

[0080] Take 50.0 g of ground activated powder and place it in 300.0 g of deionized water, add 30.0 g of pseudoboehmite (78.0% alumina content), 100.0 g of 85.0% concentrated phosphoric acid, and 120.0 g of morpholine to obtain a mixed slurry material.

[0081] Transfer the above slurry to two 500ml resin ball milling tanks, add 200g of zirconia balls with a diameter of 3mm to the tanks respectively, and mill in a planetary ball mill for 20 hours at a speed of 400r / min to obtain the initial slurry.

[0082] The initial slurry was transferred to a PTFE-lined 1L reactor and crystallized at 200°C for 20h.

[0083] Suction filter the slurry after the crystallization reaction, and recover the filtrate for use. The solid filter resid...