Metal dithiophosphates and their manufacture

Details Metal dithiophosphates and their manufacture Metal dithiophosphates and their manufacture

1977-03-28

1978-08-01

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 327E, 260429R, 260439R, 260987, C07F 306

Patent

active

041042913

ABSTRACT:
Disclosed are a process for the manufacture of metal dithiophosphates especially the neutralization of dithiophosphoric acids, and also the product made by such process. The process for the continuous neutralization of dithiophosphoric acid with metal base comprises contacting dithiophosphoric acid with metal base to form a neutralization mixture; passing said neutralization mixture through a static mixer in order to achieve mixing of the neutralization mixture and substantial neutralization of said dithiophosphoric acid; cooling the substantially neutralized dithiophosphoric acid; and recovering metal dithiophosphate.

REFERENCES:
patent: 3014940 (1961-12-01), Lynch et al.
patent: 3086939 (1963-04-01), Tichelaar
patent: 3234250 (1966-02-01), Schneider et al.
patent: 3290347 (1966-12-01), Miller
patent: 3293181 (1966-12-01), Stuart
patent: 3428662 (1969-02-01), Millendorf et al.
patent: 3442804 (1969-05-01), LeSuer et al.
patent: 3515712 (1970-06-01), Goldsmith
patent: 3562306 (1971-02-01), Blaha et al.
patent: 3686243 (1972-08-01), Rigdon et al.
Perry, Chemical Engineer's Handbook, McGraw-Hill Book Co., N.Y., 4th Ed., pp. 21-23 to 21-25 (1963).

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