Process of making an oil solution of zinc dihydrocarbyldithiopho

Details Process of making an oil solution of zinc dihydrocarbyldithiopho Process of making an oil solution of zinc dihydrocarbyldithiopho

1977-02-14

1978-05-30

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 327E, C07F 306

Patent

active

040923410

ABSTRACT:
Zinc dihydrocarbyldithiophosphates are made by the reaction of zinc oxide with dihydrocarbyldithiophosphoric acid in the presence of mineral oil which has been reacted with nitrogen dioxide. The nitrogen dioxide treatment alters the oil such that it promotes the zinc oxide reaction. The process is especially adapted for making zinc dialkaryldithiophosphates useful as lubricating oil additives.

REFERENCES:
patent: 2689220 (1954-09-01), Mulvany
patent: 3086939 (1963-04-01), Tichelaar
patent: 3277003 (1966-10-01), Gragson
patent: 3562306 (1971-02-01), Blaha et al.

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