Title:
MANUFACTURE OF ALKYLPHENATE SULFIDE OF ALKALI EARTH METAL FOR USE AS LUBRICATING OIL ADDITIVE
Document Type and Number:
Japanese Patent JPS5946262
Kind Code:
A
Abstract:
High alkalinity sulfurized alkylphenates of alkaline earth metals useful as lubricating oil additives and methods of making them are disclosed. A sulfurized alkylphenol is neutralized with an alkaline-earth base in the presence of an oil, a glycol, and halide ions, the glycol being present in the form of a mixture with an alcohol having a boiling point above 150 DEG C. Alcohol, glycol, water, and sediment are removed from the resultant medium and the medium is then carbonated. After carbonation, alcohol, glycol, water, and sediment are removed.
Inventors:
JIYAN RUI RU KOAN
Application Number:
JP11300083A
Publication Date:
March 15, 1984
Filing Date:
June 24, 1983
Export Citation:
Assignee:
OROGIL
International Classes:
C07C67/00; C07C313/00; C07C319/14; C07C323/00; C07F3/04; C10M141/08; C10M159/22; C10N10/04; C10N30/04; C10N40/25; (IPC1-7): C07C148/02; C07C149/36; C10M1/38
Domestic Patent References:
| JPS50161503A | 1975-12-27 | |||
| JPS532884A | 1978-01-12 |
Attorney, Agent or Firm:
Motohiro Kurauchi