B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 17/04 (2006.01)
Patent
CA 2733923
Demulsifiers containing an anionic surfactant selected from alkylsulfosuccinates, alkylphosphonic acids, and their salts; a nonionic surfactant selected from ethylene oxide/propylene oxide copolymers, ethoxylated fatty acids of polyethylene glycol, terpene alkoxylates, and modified alkanolamides; and solvent bases comprising blends of dibasic esters. Methods for breaking emulsions using such demulsifiers and solvent bases are also disclosed.
La présente invention concerne des désémulsifiants contenant un tensioactif anionique choisi parmi des alkylsulfosuccinates, des acides alkylphosphoniques, et leurs sels ; un tensioactif non ionique choisi parmi des copolymères doxyde déthylène/oxyde de propylène, des acides gras éthoxylés de polyéthylène glycol, des alcoxylates de terpène, et des alcanolamides modifiés ; et des bases solvant comprenant des mélanges desters dibasiques. Linvention concerne également des procédés permettant de rompre des émulsions à laide desdits désémulsifants et bases solvant.
Adam Herve
Dahanayake Manilal S.
Talingting-Pabalan Ruela
Woodward Gary
Gowling Lafleur Henderson Llp
Rhodia Operations
LandOfFree
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