Rare earth exchanged layered silicate catalysts

Details Rare earth exchanged layered silicate catalysts Rare earth exchanged layered silicate catalysts

1991-09-13

1993-02-02

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

502 65, 502 84, 502 38, 208118, 208120, C10G 1100, C10G 1102

Patent

active

051835592

ABSTRACT:
There is provided a catalyst comprising a layered silicate, such as magadiite, containing interspathic polymeric silica which serves to prop open the layers. The catalyst further comprises rare earth cations which are exchanged with other cations in the silicate. It has been discovered that this rare earth cation exchange imparts enhanced hydrothermal stability to the catalyst. There is also provided a method for making this catalyst and a process for using this catalyst for cracking hydrocarbons. In the cracking process, the catalyst is regenerated.

REFERENCES:
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patent: 4753909 (1988-06-01), Bousquet et al.
patent: 4775461 (1988-10-01), Harris et al.
patent: 4791088 (1988-12-01), Chu et al.
patent: 4812222 (1989-03-01), Kirker et al.
patent: 4859648 (1989-08-01), Landis et al.
patent: 5037530 (1991-08-01), Kirker et al.

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