Hydrotalcite contact materials

Details Hydrotalcite contact materials Hydrotalcite contact materials

1999-06-10

2000-12-05

Griffin, Steven P.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502 84, 502304, 502353, B01J 2116, B01J 2300, B01J 2342, B01J 2316

Patent

active

061566969

ABSTRACT:
Hydrotalcite-like contact materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. Large crystalline sheet materials having increased sorption of SO.sub.X are provided by incorporation of certain organic acid anionic species to modify the hydrotalcite/brucite structure. Typical industrial applications include sulfur removal from fluid catalyst cracking process, cold-side combustion gas sulfur abatement and cleaner coal gasification.

REFERENCES:
patent: 4902660 (1990-02-01), Delzer et al.
patent: 4952382 (1990-08-01), van Broekhoven
patent: 5116587 (1992-05-01), Pinnavaia et al.
patent: 5276233 (1994-01-01), Blom et al.
patent: 5399329 (1995-03-01), Schutz et al.
patent: 5714431 (1998-02-01), Gupta et al.
patent: 5776424 (1998-07-01), Martin et al.

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