METHOD FOR RECOVERING BITUMEN FROM OIL SAND
    1.
    发明申请
    METHOD FOR RECOVERING BITUMEN FROM OIL SAND 审中-公开
    从油砂中回收沥青的方法

    公开(公告)号:WO2011087659A3

    公开(公告)日:2011-11-17

    申请号:PCT/US2010060161

    申请日:2010-12-14

    CPC classification number: C10G1/042

    Abstract: In one aspect, the present invention provides a method for recovering bitumen from an oil sand, the method comprising: (a) contacting a bitumen-containing oil sand with a first solvent mixture of cyclohexane and ethanol to provide an extraction mixture comprising a sand phase and an organic phase; (b) separating the sand phase from the organic phase comprising bitumen, ethanol and cyclohexane; (c) separating an azeotropic mixture comprising cyclohexane and ethanol from the organic phase; and (d) recovering bitumen from the organic phase. The first solvent mixture comprises from about 95 to about 65 percent cyclohexane and from about 5 to about 35 percent ethanol.

    Abstract translation: 一方面,本发明提供了一种从油砂中回收沥青的方法,该方法包括:(a)使含沥青的油砂与环己烷和乙醇的第一溶剂混合物接触以提供包含砂相的提取混合物 和有机相; (b)将砂相从包含沥青,乙醇和环己烷的有机相中分离出来; (c)从有机相中分离包含环己烷和乙醇的共沸混合物; 和(d)从有机相中回收沥青。 第一溶剂混合物包含约95至约65%的环己烷和约5至约35%的乙醇。

    METHOD FOR PREPARING COPOLYESTERCARBONATES
    3.
    发明申请
    METHOD FOR PREPARING COPOLYESTERCARBONATES 审中-公开
    制备共聚碳酸酯的方法

    公开(公告)号:WO2005019300A3

    公开(公告)日:2005-12-29

    申请号:PCT/US2004020892

    申请日:2004-06-30

    CPC classification number: C08G63/64

    Abstract: A method of preparing block copolyestercarbonates wherein at least one dihydroxy­substituted aromatic hydrocarbon moiety and at least one aromatic diacid chloride are reacted under interfacial conditions to give a hydroxy-terminated polyester intermediate. The dihydroxy-substituted aromatic compound is used in about 10 mole to about 125 mole percent excess relative to the diacid chloride. Enhanced control of hydroxy-terminated polyester intermediate molecular weight is achieved by limiting the amount of water present to provide a final salt level of greater than 30 percent. The final salt level is a theoretical value but is readily calculable. The hydroxy­terminated polyester intermediate is then converted to a block copolyestercarbonate by reaction with a carbonate precursor such as phosgene.

    Abstract translation: 制备嵌段共聚酯碳酸酯的方法,其中至少一种二羟基取代的芳族烃部分和至少一种芳族二酰氯在界面条件下反应得到羟基封端的聚酯中间体。 二羟基取代的芳族化合物以相对于二酰氯为约10摩尔至约125摩尔%的过量使用。 羟基封端的聚酯中间体分子量的增强控制通过限制存在的水的量来提供大于30%的最终盐水平来实现。 最终的盐水平是理论值,但是很容易计算。 然后通过与诸如光气的碳酸酯前体反应将羟基封端的聚酯中间体转化成嵌段共聚酯碳酸酯。

    6.
    发明专利
    未知

    公开(公告)号:DE60315274T2

    公开(公告)日:2008-04-10

    申请号:DE60315274

    申请日:2003-03-11

    Applicant: GEN ELECTRIC

    Abstract: Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polyester chain segments, are prepared by a method comprising the steps of: (a) preparing a hydroxy-terminated polyester intermediate comprising structural units derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety; and (b) conducting a reaction of the polyester intermediate with phosgene in a reaction mixture comprising water, a substantially water-immiscible organic solvent, and a base, wherein base and phosgene are added simultaneously to the reaction mixture at a substantially constant molar ratio of base to phosgene for a time period of at least about 60% of the total amount of phosgene added.

    METODO PARA LA SINTESIS DE COPOLIESTERCARBONATOS.

    公开(公告)号:ES2290440T3

    公开(公告)日:2008-02-16

    申请号:ES03714026

    申请日:2003-03-11

    Applicant: GEN ELECTRIC

    Abstract: Un método para preparar un copoliestercarbonato de bloque que comprende miembros de cadena derivados desde al menos un fracción de hidrocarburo aromático sustituido por dihidroxi y al menos una fracción de ácido dicarboxílico aromático, estando dicho polímero sustancialmente libre de enlaces de anhídrido que enlazan al menos dos meros de los segmentos de cadena de poliéster, que comprende las operaciones de: (a) preparar un intermedio de poliéster terminado en hidroxi que comprende unidades estructurales derivadas desde al menos una facción de hidrocarburo aromático sustituido con dihidroxi y al menos una fracción de ácido dicarboxílico aromático; y (b) conducir una reacción del intermedio de poliéster con fosgeno en una mezcla de reacción que comprende agua, un disolvente orgánico sustancialmente inmiscible en agua, y una base en el que la base y el fosgeno son añadidos simultáneamente a la mezcla de reacción a una relación molar sustancialmente constante de base a fosgeno hasta que al menos aproximadamente el 60% de la cantidad total de fosgeno ha sido añadido.

    METHOD FOR COPOLYESTERCARBONATE SYNTHESIS

    公开(公告)号:AU2003218046A1

    公开(公告)日:2003-10-13

    申请号:AU2003218046

    申请日:2003-03-11

    Applicant: GEN ELECTRIC

    Abstract: Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polyester chain segments, are prepared by a method comprising the steps of: (a) preparing a hydroxy-terminated polyester intermediate comprising structural units derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety; and (b) conducting a reaction of the polyester intermediate with phosgene in a reaction mixture comprising water, a substantially water-immiscible organic solvent, and a base, wherein base and phosgene are added simultaneously to the reaction mixture at a substantially constant molar ratio of base to phosgene for a time period of at least about 60% of the total amount of phosgene added.

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