Title:
PROCESS FOR PREPARING DIALKYL TRISULFIDES
Document Type and Number:
WIPO Patent Application WO/1983/002773
Kind Code:
A1
Abstract:
Dialkyl trisulfides having low copper plate-corroding properties and being suitable as extreme-pressure additives for lubricating oils can be synthesized with high selectivity by reacting 1 mole of alkylmercaptan with 0.5 to 1.0 gram atom of elementary sulfur in the presence of a magnesium oxide catalyst.
Inventors:
KOYAMA YUICHIRO (JP)
NAKAZAWA HIROSHI (JP)
YAMASHITA TOSHIAKI (JP)
MORIYAMA HITOSHI (JP)
NAKAZAWA HIROSHI (JP)
YAMASHITA TOSHIAKI (JP)
MORIYAMA HITOSHI (JP)
Application Number:
PCT/JP1983/000042
Publication Date:
August 18, 1983
Filing Date:
February 12, 1983
Export Citation:
Assignee:
NIPPON SODA CO (JP)
International Classes:
B01J21/10; C07B61/00; C07C67/00; C07C313/00; C07C319/24; C07C321/14; (IPC1-7): C07C149/12; C07C148/00; B01J21/10
Foreign References:
| JPS4517650B1 | ||||
| JPS4116867B1 | ||||
| JPS4734684B2 |
Other References:
See also references of EP 0108149A4
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