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    CRUDE OIL DEMULSIFIERS
    11.
    发明专利
    CRUDE OIL DEMULSIFIERS 未知

    公开(公告)号：CA1067243A

    公开(公告)日：1979-11-27

    申请号：CA236332

    申请日：1975-09-25

    Applicant: HOECHST AG

    Inventor： MACENKA JOHANNES ,  FISCHER MANFRED ,  GOHLKE FRITZ J

    IPC: B01D17/05 ,  C02F1/52 ,  C08G8/00 ,  C08G8/24 ,  C08G8/28 ,  C08G65/32 ,  C08G65/331 ,  C08G81/00 ,  C10G33/04

    Abstract: of the disclosure: A condensation product obtained by first preparing a) an addition product of aliphatic aldehydes and phenol in a molar ratio of about 1 : 1 to 3 : 1, at temperatures in the range of from about 50.degree. to 80.degree. C, in the presence of an alkaline catalyst, and separately therefromb) a block polymer, obtained from a polypropylene glycol having a molecular weight from about 1500 to 2500 by the addition of about 30 to 50% by weight of ethylene oxide in the presence of an alkaline catalyst. and subsequentlyc) condensing about 0.5 to 4 moles of a) with 1 mole of b), after previous neutralization, if necessary in the presence of inert solvents, at 80.degree. to 150.degree. C, and removing the reaction water formed, and its use as demulsifying agent for the separation of water from crude oil emulsions.

    12.
    发明专利
    未知

    公开(公告)号：DE2445873A1

    公开(公告)日：1976-04-08

    申请号：DE2445873

    申请日：1974-09-26

    Applicant: HOECHST AG

    Inventor： MACENKA JOHANNES ,  FISCHER MANFRED DR ,  GOHLKE FRITZ-JOACHIM DR

    IPC: B01D17/05 ,  C02F1/52 ,  C08G8/00 ,  C08G8/24 ,  C08G8/28 ,  C08G65/32 ,  C08G65/331 ,  C08G81/00 ,  C10G33/04 ,  C08G8/36

    Abstract: 1500825 Demulsifying crude oil emulsions HOECHST AG 24 Sept 1975 [26 Sept 1974] 39095/75 Heading C5E [Also in Division C3] A process for the separation of water from crude oil emulsions comprises adding to the stationary or flowing emulsion from 2 to 100 p.p.m. of a demulsifying agent which is a condensation product that has been prepared by (a) preparing an addition product of an aliphatic aldehyde, preferably formaldehyde, and phenol in a molar ratio of from 1:1 to 3:1 at a temperature of from 50‹ to 80‹ C. in the presence of an alkaline catalyst; (b) preparing a block copolymer from a polypropylene glycol having a molecular weight from 1500 to 2500 by the addition of from 30 to 50% by weight of ethylene oxide in the presence of an alkaline catalyst; and (c) condensing from 0À5 to 4 moles of addition product (a) with 1 mole of block copolymer (b), after neutralization, with an acid, if necessary in the presence of an inert solvent at from 80‹ to 150‹ C., and simultaneously removing the water formed. The demulsifying agent used may be dissolved in water and/or an organic solvent.

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