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    ZWITTERIONIC SURFACTANTS SUITABLE FOR ENHANCED OIL RECOVERY
    4.
    发明申请
    ZWITTERIONIC SURFACTANTS SUITABLE FOR ENHANCED OIL RECOVERY 审中-公开

    公开(公告)号：US20190153298A1

    公开(公告)日：2019-05-23

    申请号：US16091227

    申请日：2017-03-30

    申请人： RHODIA OPERATIONS

    发明人： Olivier BACK ,  Philippe MARION ,  Mikel MORVAN

    IPC分类号： C09K8/584 ,  C07C229/12 ,  C07C309/14 ,  E21B43/16

    摘要： The instant invention relates to surfactants having the following formula (I) wherein: each of Ra and Rb is a a linear or branched, saturated or unsaturated, hydrocarbon chain, each of Rc and Rd is a alkyl chain having 1 to 10 carbon atoms, each of (E1) and (E2) is a divalent hydrocarbon radical, A is: a group a carboxylate group —COO− (optionally in all or part in the form —COOH); or a sulfonate group —SO3− (optionally in all or part in the form —SO3H). The invention also relate to the preparation of these surfactants and their use in oil extraction, especially in EOR applications.

    PROCESS FOR THE DECARBOXYLATIVE KETONIZATION OF FATTY ACIDS OR FATTY ACID DERIVATIVES
    5.
    发明申请
    PROCESS FOR THE DECARBOXYLATIVE KETONIZATION OF FATTY ACIDS OR FATTY ACID DERIVATIVES 有权

    公开(公告)号：US20210024443A1

    公开(公告)日：2021-01-28

    申请号：US16326460

    申请日：2017-08-17

    申请人： RHODIA OPERATIONS

    发明人： Olivier BACK ,  Rémy LEROY ,  Philippe MARION

    IPC分类号： C07C45/48

    摘要： The present invention is directed to a process for synthesizing an internal ketone K1 by decarboxylative ketonization reaction of a fatty acid, a fatty acid derivative or a mixture thereof in a liquid phase with a metal compound as catalyst in a reaction medium, said process being characterized in that a ketone K2 at liquid state, which is identical or similar to the ketone K1, is introduced into the reaction medium. The so-synthesized internal ketone K1 can be used for the preparation of a variety of end compounds, including surfactants having a twin-tail structure or a Gemini structure.

    NEW TWIN TAIL AMINE COMPOUNDS AND THEIR ZWITTERIONIC DERIVATIVES
    6.
    发明申请
    NEW TWIN TAIL AMINE COMPOUNDS AND THEIR ZWITTERIONIC DERIVATIVES 审中-公开

    公开(公告)号：US20190292129A1

    公开(公告)日：2019-09-26

    申请号：US16347994

    申请日：2017-11-08

    申请人： RHODIA OPERATIONS

    发明人： Olivier BACK ,  Roberto COMPANY ,  Hong LIU ,  Rémy LEROY ,  Philippe MARION

    IPC分类号： C07C211/14 ,  C07C291/04 ,  C07C211/63 ,  A01N25/30 ,  C07C209/78

    摘要： A compound of general formula (I) or (II), wherein Rn and Rm independently represent a C3-C27 aliphatic group, R1 to R4, which may be the same or different at each occurrence, represent hydrogen or a C1-C8 alkyl group, X1 and X2, which may be the same or different at each occurrence, represent a linear or branched divalent hydrocarbon radical with 1 to 24 carbon atoms which can be optionally substituted and/or interrupted by one or more heteroatoms or heteroatom containing groups, and R5 and R6, which may be the same or different at each occurrence, represent a group selected from —O−, -Alk-CH(OH)—CH2—SO3— and -Alk-CO2— wherein Alk represents an alkylene group.