Process for selectively preparing organic trisulfides

Details Process for selectively preparing organic trisulfides Process for selectively preparing organic trisulfides

1993-01-13

1995-08-15

Richter, Johann

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

Organic compounds

Sulfur containing

568 22, C07C32100

Patent

active

054421233

ABSTRACT:
A process for producing a substantially pure organic trisulfide from mercaptan and sulfur (or high rank organopolysulfide) wherein the sulfur is reacted with mercaptan in the presence of a heterogeneous alumina-based catalyst, ammonium, alkali metal or alkaline earth metal modified silica-based catalyst, zinc-based catalyst or mixtures thereof, and recovering a product containing at least a major proportion of trisulfide.

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Vineyard, B. D., Jour. Organic Chemistry 32, 3833-6 (Dec. 1967).
Rabo, Zeolite Chemistry and Catalysis, ACS, 1976 p. 35.

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