Compositions – Electrolytes for electrical devices
Patent
1995-03-14
1996-02-06
McAvoy, Ellen M.
Compositions
Electrolytes for electrical devices
252 515A, 252 54, 252 56D, 2082621, 570262, C10M13100, C10M14700
Patent
active
054893909
ABSTRACT:
The present invention relates to a process for reducing the chlorine content of an organochlorine compound comprising: introducing into the organochlorine compound, at least one acid selected from the group consisting of Lewis acids, mineral acids other than hydriodic acid and hydrobromic acid, and organic acids having a pKa of less than about 2 to form a mixture, and contacting the organochlorine compound with the at least one acid in the mixture for a sufficient amount of time to reduce the chlorine content of the organochlorine compound. In another embodiment, a process is described for reducing the chlorine content of an organochlorine compound comprising contacting the organochlorine compound with (a) at least one acid selected from the group consisting of Lewis acids, mineral acids other than hydriodic acid and hydrobromic acid, and organic acids having a pKa of less than about 2, and (b) a source of iodine or bromine for a sufficient amount of time to reduce the chlorine content of the organochlorine compound. In other embodiments, the organochlorine compounds may comprise a chlorine-containing polyalkenyl succinic anhydride, and a chlorine-containing reaction product of a polyisobutylene and maleic anhydride prepared in the presence of chlorine. Polyalkenylsuccinic anhydrides treated in accordance with the method of the present invention to reduce the chlorine content thereof may be further reacted with a polyamine or a polyol, or a mixture of a polyamine and a polyol to form the compounds which are useful as dispersants in lubricating oil compositions. Such dispersants and lubricating oil compositions also are described herein.
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The Merck Index An Encyclopedia of Chemicals and Drugs, 8th Edition, 1968.
Fahmy Mohamed G.
Sivik Matthew R.
Connors William J.
Engelmann John H.
Hunter Frederick D.
McAvoy Ellen M.
The Lubrizol Corporation
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