Method for preparation of antimony mercaptides

Details Method for preparation of antimony mercaptides Method for preparation of antimony mercaptides

1988-12-07

1989-10-10

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 77, 549206, 549210, 549211, C07F 990, C07F 992

Patent

active

048733512

ABSTRACT:
Antimony trioxide is reached with an organic mercaptan R.sup.1 --SH or R.sup.2 --OCO--(CH.sub.2).sub.n --SH (where R.sup.1 is an alkyl, alkenyl, aryl, aralkyl, cycloalkyl or heterocyclic group having from 1 to 18 carbon atoms, which optionally has sulfide bond or ether bond or a hydroxyl or carboxyl group as a substituent, R.sup.2 is a hydrogen atom or an alkyl, alkenyl, aryol, aralkyl, cycloalkyl or heterochclic group having from 1 to 18 carbon atoms, which optionally has sulfide bond or ether bond or a hydroxyl or carboxyl group as a substituent, and n is 1 to 3) in the presence of a lower aliphatic carboxylic acid to give an antimony mercaptide Sb(--SR.sup.1).sub.3 or Sb(--S--(CH.sub.2).sub.n --COOR.sup.2).sub.3 of high purity with high yield. The products are excellent in the time-dependent stability and the effect as a passivator for catalysts for catalytic cracking of hydrocarbons.

REFERENCES:
patent: 4279806 (1981-07-01), Murdrow
patent: 4287118 (1981-09-01), Murdrow
patent: 4303578 (1981-12-01), Michaelis

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