Process for the production of dialkyl-trisulfides
US4564709A · kind A · utility
25Cited by
4References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 7, 1983 |
| Grant date | Jan 14, 1986 |
| Priority date | — |
| Expiry date | Oct 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Dialkyl-trisulfides having a minimum grade of copper-strip corrosivity which are suitable as extreme-pressure additives, are produced at high selectivity by reacting alkyl-mercaptans and sulfur at a quantitative ratio in a range of 0.5 to 1.0 gram atom of sulfur to 1 mol of alkyl-mercaptan in the presence of magnesium oxide as catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.