EMULSIFYING AGENT FOR PREPARATION OF INVERT EMULSIONS Russian patent published in 2003 - IPC

FIELD: emulsifiers used for preparation of invert emulsions for intensification of oil producing process. SUBSTANCE: proposed emulsifying agent contains surfactant in form of product of interaction of boric acid, diethanol amine and mixture of fatty aids of saturated or unsaturated series at hydrocarbon radical C₈-C₂₄ at mole ratio of boric acid : diethanol amine : fatty acids = 1: 3: 1-3. Content of components in emulsifying agent is as follows, mas. %: oil-soluble surfactant, 10-30; hydrocarbon solvent, up to 100. In specific case, emulsifying agent contains additionally glycerin at the following content of components, mas.%: oil-soluble surfactant, 10-30, glycerin, 0.5-2.5 and hydrocarbon solvent, up to 100. EFFECT: reduced solidification temperature; enhanced thermal stability and emulsifying ability. 2 cl, 1 tbl, 5 ex