Synthesis of a crystalline silicoaluminophosphate

Details Synthesis of a crystalline silicoaluminophosphate Synthesis of a crystalline silicoaluminophosphate

C - Chemistry, Metallurgy

01

B

252/2.C, 260/675

C01B 37/08 (2006.01) B01J 29/04 (2006.01) B01J 29/85 (2006.01)

Patent

CA 1253838

SYNTHESIS OF A CRYSTALLINE SILICOALUMINOPHOSPHATE ABSTRACT A method for the synthesis of the silicoaluminophosphate SAPO-37 comprises preparing a two-phase reaction mixture containing the required starting materials divided between a liquid organic phase and a liquid aqueous-phase. The reaction mixture is then heated at a rate of from 5°C to 200°C per hour to a temperature of from 80°C to 200°, while being agitated in a manner sufficient to intimately admix the liquid organic and aqueous phases. Once nucleation of the silicoaluminophosphate occurs the agitated reaction mixture is heated at rate of from 5°C to 200°C per hour to a temperature of from 100°C to 300° and maintained then at the higher temperature and at a pH of from 2 to 9 until crystals of the desired silicoaluminophosphate are formed.

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