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3 results about "ALUMINUM PHOSPHATE" patented technology

Aluminium phosphate (AlPO4) is a chemical compound. The anhydrous form is found in nature as the mineral berlinite. Many synthetic forms of anhydrous aluminium phosphate are known.

Synthetic method for phosphorus-containing ZSM-5 molecular sieve

ActiveCN103964465ALower synthesis costReduce pollutionPentasil aluminosilicate zeoliteALUMINUM PHOSPHATESilicon
The invention discloses a synthetic method for a phosphorus-containing ZSM-5 molecular sieve. The method comprises the following steps: mixing a first organic template with an aluminum source, wherein in the obtained mixture, a mol ratio of the first organic template to Al2O3 in the aluminum source is 0.2-40: 1; treating the mixture in an enclosed reaction vessel at a temperature of 50 to 190 DEG C for 0.1 to 5 h and then carrying out cooling so as to obtain an intermediate product; and uniformly mixing the intermediate product with a second organic template, a silicon source and water and carrying out hydrothermal crystallization so as to obtain the phosphorus-containing ZSM-5 molecular sieve; wherein the aluminum source is an aluminum phosphate molecular sieve and / or silicon-phosphorus-aluminum molecular sieve. The method adopts a synthetic process route different from that in the prior art, abandons usage of high-cost silica-alumina gel as the silicon source and the aluminum source and can directly prepare the phosphorus-containing ZSM-5 molecular sieve, so synthesis cost is reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
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