Method for demulsifying emulsions
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United States of America Patent
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Oct 30, 2001
Grant Date -
N/A
app pub date -
May 12, 2000
filing date -
Aug 6, 1997
priority date (Note) -
Expired
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Abstract
A process for breaking an emulsion into a water phase and an oil phase involving: (a) providing an emulsion containing an oil phase and a water phase; (b) providing an alkoxylated C.sub.10-24 carboxylic acid ester derived by the addition of ethylene oxide and/or propylene oxide onto a ring opened epoxidized C.sub.10-24 carboxylic acid triglyceride which is ring opened with a C.sub.6-18 carboxylic acid; and (c) contacting the emulsion with a demulsifying effective amount of the alkoxylated C.sub.10-24 carboxylic acid ester. Said process has application on crude oil emulsions.
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