Modified 8-ring zeolites as catalysts

Details Modified 8-ring zeolites as catalysts Modified 8-ring zeolites as catalysts

1987-03-31

1988-06-21

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 60, B01J 2906

Patent

active

047525967

ABSTRACT:
A process for producing dimethylamine is provided, comprising reacting methanol and/or dimethylether and ammonia, in amounts sufficient to provide a carbon
itrogen (C/N) ratio from about 0.2 to about 1.5, and at a temperature from about 250.degree. C. to about 450.degree. C., in the presence of a catalytic amount of a modified acidic zeolite selected from the group consisting of chabazite, erionite, ZK-5, and rho, the zeolite having been modified by treatment with one or more compounds containing at least one element selected from the group consisting of silicon, aluminum, phosphorus, and boron, to deposit thereon at least 0.05 weight percent of the element.

REFERENCES:
patent: 3354096 (1967-11-01), Young
patent: 3411888 (1968-11-01), Westerland et al.
patent: 3740347 (1973-06-01), Rosen et al.
patent: 3867279 (1975-02-01), Young
patent: 3962364 (1976-06-01), Young
patent: 4115424 (1978-09-01), Unland et al.
patent: 4458023 (1984-07-01), Welsh et al.

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