| 摘要 |
Antimony trioxide is reached with an organic mercaptan R1-SH or R2-OCO-(CH2)n-SH (where R1 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, R2 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(-SR1)3 or Sb(-S-(CH2)n-COOR2)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.
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