Methanol conversion processes using syocatalysts

Details Methanol conversion processes using syocatalysts Methanol conversion processes using syocatalysts

1992-05-04

1993-08-03

Dees, Carl F.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

C07C 120

Patent

active

052331172

ABSTRACT:
Hydrothermal treatment of silicoaluminophosphate molecular-sieves at temperatures in excess of about 700.degree. C. for periods sufficient to destroy a large proportion of their acid sites while retaining at least 80 percent of their crystallinity is found to result in a catalyst for converting methanol to lower olefins having increased catalyst life, increased selectivity for C.sub.2 -C.sub.3 olefins and decreased selectivity for paraffin production than the untreated SAPO-n starting composition.

REFERENCES:
patent: 5095163 (1992-03-01), Barger

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