1.
    发明专利
    未知

    公开(公告)号:NO965114D0

    公开(公告)日:1996-11-29

    申请号:NO965114

    申请日:1996-11-29

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/01901 Sec. 371 Date Dec. 2, 1996 Sec. 102(e) Date Dec. 2, 1996 PCT Filed May 19, 1995 PCT Pub. No. WO95/33018 PCT Pub. Date Dec. 7, 1995Water is separated from crude oil by a process in which the oil demulsifier used is a mixture of A) compounds which have demulsifying activity and are of the structure type of the (a) polyethyleneimine alkoxylate, (b) mono- or oligoamine alkoxylate, (c) alkoxylated alkylphenol/formaldehyde resins, (d) alkoxylated amine-modified alkylphenol/formaldehyde resins, (e) co- or terpolymers of alkoxylated acrylates or methacrylates with vinyl compounds, (f) condensates of mono- or oligoamine alkoxylates, dicarboxylic acids and alkylene oxide block copolymers, where these condensates may furthermore be completely or partially quaternized at the nitrogen atoms, or (g) compounds (a) to (f) reacted with crosslinking agents and B) as a demulsifying assistant, a polyalkylene glycol ether which has no demulsifying activity and is of the general formula I or IIR1[(OA1)a-OH]n(I)H-(OA1)b-(OA2)c-(OA3)d-OH(II)where R1 is a monovalent to decavalent C1-C20 alkyl group, phenyl group or alkylphenyl group where the alkyl radical is of 1 to 20 carbon atoms, A1 to A3 are each a 1,2-alkylene group of 2 to 4 carbon atoms or a phenylethylene group, n is from 1 to 10, a is from 1 to 50 and b, c and d are each from 0 to 50, the sum b+c+d being greater than 3.

    2.
    发明专利
    未知

    公开(公告)号:NO965114L

    公开(公告)日:1996-12-02

    申请号:NO965114

    申请日:1996-11-29

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/01901 Sec. 371 Date Dec. 2, 1996 Sec. 102(e) Date Dec. 2, 1996 PCT Filed May 19, 1995 PCT Pub. No. WO95/33018 PCT Pub. Date Dec. 7, 1995Water is separated from crude oil by a process in which the oil demulsifier used is a mixture of A) compounds which have demulsifying activity and are of the structure type of the (a) polyethyleneimine alkoxylate, (b) mono- or oligoamine alkoxylate, (c) alkoxylated alkylphenol/formaldehyde resins, (d) alkoxylated amine-modified alkylphenol/formaldehyde resins, (e) co- or terpolymers of alkoxylated acrylates or methacrylates with vinyl compounds, (f) condensates of mono- or oligoamine alkoxylates, dicarboxylic acids and alkylene oxide block copolymers, where these condensates may furthermore be completely or partially quaternized at the nitrogen atoms, or (g) compounds (a) to (f) reacted with crosslinking agents and B) as a demulsifying assistant, a polyalkylene glycol ether which has no demulsifying activity and is of the general formula I or IIR1[(OA1)a-OH]n(I)H-(OA1)b-(OA2)c-(OA3)d-OH(II)where R1 is a monovalent to decavalent C1-C20 alkyl group, phenyl group or alkylphenyl group where the alkyl radical is of 1 to 20 carbon atoms, A1 to A3 are each a 1,2-alkylene group of 2 to 4 carbon atoms or a phenylethylene group, n is from 1 to 10, a is from 1 to 50 and b, c and d are each from 0 to 50, the sum b+c+d being greater than 3.

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