wherein R3 and R4 are lower alkyl; Y is alkylene; mm1and mm2are O or 1, both may not be O; p is mean value of 2-6; r is 0-1; M is alkali metal, is prepared by prior and methods. EFFECT: improved properties of the title compounds. 2 cl, 4 tbl"/>
SULFOACID DERIVATIVES AS SURFACE ACTIVE AGENT FOR RECOVERY OF OIL IN CHEMICAL FLOODING OF OIL WELL WITH SEA WATER
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SULFOACID DERIVATIVES AS SURFACE ACTIVE AGENT FOR RECOVERY OF OIL IN CHEMICAL FLOODING OF OIL WELL WITH SEA WATER
SULFOACID DERIVATIVES AS SURFACE ACTIVE AGENT FOR RECOVERY OF OIL IN CHEMICAL FLOODING OF OIL WELL WITH SEA WATER
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机译：硫磺衍生物作为表面活性剂用于海水化学油井注水中的油回收
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摘要
FIELD: for recovery of oil. SUBSTANCE: the product: sulfoacid derivatives of formula I: wherein R3 and R4 are lower alkyl; Y is alkylene; mm1and mm2are O or 1, both may not be O; p is mean value of 2-6; r is 0-1; M is alkali metal, is prepared by prior and methods. EFFECT: improved properties of the title compounds. 2 cl, 4 tbl
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