Title:
PRODUCTION OF HIGHLY FLOWABLE EXCESSIVE BASE ADDITIVE HAVINGHIGHLY BASIC VALUE AND COMPOSITION CONTAINING THE SAME
Document Type and Number:
Japanese Patent JPS6296598
Kind Code:
A
Abstract:
This invention concerns a process for preparing very fluid overbased additives having a high basicity, by contacting an alkaline-earth metal derivative and at least one surfactant with carbon dioxide in a diluent oil and a hydrocarbon-based solvent in the presence of an oxygen-based promoter and a nitrogen-based promoter wherein the carbonation time is comprised between an initial point Po corresponding to the beginning of the temperature plateau of the exothermic reaction and the end point of the carbonation which corresponds to a sudden drop of the alkaline value, the additives according to the invention being utilized in lubricating oils and fuels.
Inventors:
BERUNAARU DAMAN
ROJIE GARO
POORU MARUDONADO
PIEERU HOORUNAERU
SHIMON PAREI
ROJIE GARO
POORU MARUDONADO
PIEERU HOORUNAERU
SHIMON PAREI
Application Number:
JP23543786A
Publication Date:
May 06, 1987
Filing Date:
October 02, 1986
Export Citation:
Assignee:
ELF FRANCE
International Classes:
C10L1/12; C10L1/24; C10L1/30; C10L10/18; C10M159/20; C10M159/24; C10M177/00; C10N10/04; C10N30/10; C10N30/12; C10N40/25; (IPC1-7): C10L1/12; C10L1/18; C10L1/24; C10M125/00; C10M125/10; C10M135/10; C10M159/24; C10M177/00; C10N10/04; C10N30/10; C10N30/12; C10N40/00
Attorney, Agent or Firm:
Yamazaki Yuzo