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    EMULSION BREAKERS INCLUDING POLYESTER FUNCTIONALITIES, ITS METHOD FOR PREPARATION AND A METHOD FOR BREAKING AN EMULSION USING THE EMULSION BREAKER
    6.
    发明授权
    EMULSION BREAKERS INCLUDING POLYESTER FUNCTIONALITIES, ITS METHOD FOR PREPARATION AND A METHOD FOR BREAKING AN EMULSION USING THE EMULSION BREAKER 有权

    公开(公告)号：EP2850158B1

    公开(公告)日：2018-09-26

    申请号：EP13729127.4

    申请日：2013-05-15

    申请人： Nalco Company

    发明人： QU, Liangwei ,  VIJN, Jan, Pieter ,  BODNAR, Scot ,  LIZARAZO, Carlos

    IPC分类号： C10G33/04

    CPC分类号： C09K8/00 ,  C10G33/04

    摘要： An emulsion breaker composition, a method of making the emulsion breaker, and method of breaking an emulsion are disclosed. In one method, an emulsion is contacted with an effective amount of an emulsion breaker composition. The emulsion breaker is a linear or branched polymer having at least one branch, wherein each branch has a first polymer block having a backbone including a plurality of ester groups and a second polymer block including an alkoxylate, and wherein at least two of the ester groups are connected by a —CR1R2 group. The emulsion breakers are preferably formed by reacting a polyol with a cyclic ester monomer in the presence of a first catalyst to form an intermediate polymer having a plurality of branches, wherein each branch has a backbone including a plurality of ester groups, and then reacting the intermediate polymer with at least one alkylene oxide species in the presence of a second catalyst to form an alkoxylate block on each branch.

    DEMULSIFIERS
    9.
    发明授权
    DEMULSIFIERS 有权
    破乳剂

    公开(公告)号：EP3145979B1

    公开(公告)日：2018-03-21

    申请号：EP15722573.1

    申请日：2015-05-08

    申请人： Croda International PLC

    发明人： ROUSE, Sean Philip Nigel ,  PRODGER, James Alan ,  DAVIES, Craig Allan

    IPC分类号： C08G65/26 ,  B01D17/04 ,  C10G33/04 ,  C08G65/332

    CPC分类号： C10G33/04 ,  B01D17/047 ,  C08G65/2615 ,  C08G65/3322

    摘要： The present invention provides a demulsifier comprising a compound of the general formula (I), a demulsification formulation comprising the demulsifier, methods of making a demulsifier, a method of demulsifying an oil-in-water or a water-in oil emulsion and the use as a demulsifier of a compound comprising a dimer and/or trimer fatty residue and an alkyleneoxy chain comprising a first ethyleneoxy section, a second ethyleneoxy section, and a propyleneoxy section located between the first ethyleneoxy section and the second ethyleneoxy section, wherein the propyleneoxy section comprises from 1 to 20 propyleneoxy groups. The demulsifier may be for use in demulsifying an emulsion, for example crude oil.