Process for passivating high activity transition metal sulfide c

Details Process for passivating high activity transition metal sulfide c Process for passivating high activity transition metal sulfide c

1985-01-16

1988-04-26

Sneed, Helen M. S.

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

Catalyst or precursor therefor

Sulfur or compound containing same

502 54, 502174, 502200, 502219, 502220, 502221, 502301, B01J 2702, B01J 3808, B01J 2118, B01J 2724

Patent

active

047404914

ABSTRACT:
Catalysts having as their active component sulfides of vanadium, molybdenum and tungsten are contacted with ammonia or with an amine which in aqueous solution has a basic ionization constant greater than that of ammonium hydroxide to suppress deactivation of the catalysts by exposure to the atmosphere.

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patent: 4320030 (1982-03-01), Hoppel et al.
patent: 4435481 (1984-03-01), Baldi
patent: 4443557 (1984-04-01), Baldi

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