The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 1983
Filed:
Dec. 10, 1979
Roland Bohm, Kelkheim, DE;
Martin Hille, Liederbach, DE;
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
Use of surface-active neutral salts of sulfonic acids of the formula I ##STR1## wherein A stands for a saturated aliphatic hydrocarbon radical or an aliphatic hydrocarbon radical having one olefinic double bond each having 3 carbon atoms, or a mononuclear or binuclear aromatic radical, especially phenyl or naphthyl, C.sub.6 H.sub.2 or C.sub.10 H.sub.4, R.sub.1 stands for alkyl or alkenyl having from 1 to 21 carbon atoms, especially 1 to 18 carbon atoms and R.sub.2 and R.sub.3 each stand for hydrogen or alkyl having from 1 to 4 carbon atoms, and of oxethylated aliphatic amines of the formula II ##STR2## wherein R' stands for a saturated aliphatic hydrocarbon radical or an aliphatic hydrocarbon radical having one or two olefinic double bonds each radical having from 8 to 25, preferably 10 to 2, carbon atoms, z stands for 0 or 1 and m, n and x each stand for integers of from 0 to 20, the sum of m, n and X amounting to an integer of from 2 to 40, as demulsifiers for the demulsification of water-containing crude oil and oil sludge emulsions.