Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Patent
1992-01-31
1993-10-05
Cintins, Marianne M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur containing
568 26, C07C31924
Patent
active
052507378
ABSTRACT:
A method for preparing an essentially chlorine free additive mixture for oleaginous fluids containing less than 15 wt. % dialkyl higher-polysulfides, the process comprising: a) forming a reaction mass comprising olefin, a sulfur source, and a catalyst; b) heating the reaction mass to a temperature and for a period of time which is sufficient to form a mixture of olefin, alkyl mercaptan, dialkyl disulfide, dialkyl trisulfide and dialkyl higher-polysulfides; and c) refluxing the reaction mass obtained in (b) at a temperature and for a period of time which are sufficient to convert at least a portion of the dialkyl higher-polysulfides to dialkyl trisulfide so as to obtain the additive mixture containing less than 15 wt. % dialkyl higher-polysulfides.
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Cintins Marianne M.
Ethyl Corporation
LaRose David E.
Page Margaret J.
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