Method of protecting SAPO molecular sieve from loss of...

Details Method of protecting SAPO molecular sieve from loss of... Method of protecting SAPO molecular sieve from loss of...

2005-05-24

2005-05-24

Wood, Elizabeth D. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

C502S214000

Reexamination Certificate

active

06897179

ABSTRACT:
Disclosed is a method of protecting the loss of catalytic activity of metalloaluminophosphate molecular sieve, particularly a SAPO molecular sieve, from contact with moisture. The method involves heating the metalloaluminophosphate molecular sieve so as to remove template, and provide a molecular sieve in sufficiently dry form for storage.

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Briend et al., “Influence of th eChoice of Template on the Short-and-Long-Term Stability of SAPO Zeolite,”J. Phys. Chem., vol. 99, pp. 8270-8276, (1995), no month.
Simonot-Grange et al., “Contribution to the Study of Framework Modification of SAPO-34 and SAPO-37 upon water Adsorption by Thermgravimetry,”Thermchimica Acta, vol. 329, pp. 77-82, (1999), no month.
Mees et al., “Improvement of the Hydrothermal Stability of SAPO-34,”Chem. Commun., vol. 1, pp. 44-45, (2003), no month.
Briend, M., et al., “Thermal and Hydrothermal Stability of SAPO-5 and SAPO-37 Molecular Sieves”, Journal of the Chemical Society, Dalton Transactions, Chemical Society, Letschworth, GB, No. 7, Jul. 1989, pp. 1361-1362.

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