Process for the preparation of overbased magnesium sulfonates

Details Process for the preparation of overbased magnesium sulfonates Process for the preparation of overbased magnesium sulfonates

1985-06-17

1986-10-14

Lander, Ferris H.

Compositions

Electrolytes for electrical devices

252 334, C10M 140, C10M 334

Patent

active

046171355

ABSTRACT:
A process for the preparation of overbased oil soluble magnesium sulfonates comprises contacting an acidic gas at a temperature between about 50.degree. F. up to the reflux temperature of the mixture, with a mixture consisting essentially of a sulfonic acid or salt thereof, a volatile aliphatic or aromatic or chlorinated hydrocarbon solvent, a non-volatile diluent oil, a light magnesium oxide, water, methanol and combination of promoters, wherein the first promoter is one selected from an oil soluble naphthenic acid and an oil soluble carboxylic acid or salt thereof; and a second promoter being one selected from: ##STR1## wherein X is one of H, OH, NH.sub.2, CO.sub.2 H, OCOCH.sub.3 and SH, and Y is one of H, CH.sub.3 and CH.sub.2 CH.sub.3, wherein the second promoter is less oil soluble than the first promoter; and (b) a water soluble C.sub.1 -C.sub.6 carboxylic acid.
The volatile components are stripped from the reaction mixture after absorption of the acidic gas is completed, to give a highly commercially desirable overbased magnesium sulfonate. Relatively small amounts of about 1.0 to 1.5% of the combined promoters produce overbased magnesium sulfonates of exceptionally high alkalinity value up to 500 or more, with minimum sediment.

REFERENCES:
patent: 3055829 (1962-09-01), Wiley et al.
patent: 3629109 (1971-12-01), Gergel et al.
patent: 3853774 (1974-12-01), Crocker
patent: 3865737 (1975-02-01), Kemp
patent: 4129589 (1978-12-01), Eliades et al.
patent: 4148740 (1979-04-01), Cease et al.
patent: 4328111 (1982-05-01), Watson et al.

Affiliated with

Also associated with

Rating

Process for the preparation of overbased magnesium sulfonates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of overbased magnesium sulfonates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of overbased magnesium sulfonates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1339269