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    Method for making salts hydroxy-substituted hydrocarbons
    1.
    发明申请
    Method for making salts hydroxy-substituted hydrocarbons 有权
    盐的制备方法羟基取代的烃

    公开(公告)号：US20050049439A1

    公开(公告)日：2005-03-03

    申请号：US10647890

    申请日：2003-08-25

    申请人： Thomas Guggenheim ,  Daniel Brunelle ,  David Woodruff ,  Lee Bergman ,  Norman Johnson ,  Matthew Littlejohn ,  Farid Khouri

    发明人： Thomas Guggenheim ,  Daniel Brunelle ,  David Woodruff ,  Lee Bergman ,  Norman Johnson ,  Matthew Littlejohn ,  Farid Khouri

    IPC分类号： C07C29/70 ,  C07F1/02

    CPC分类号： C07C37/70 ,  C07C37/66 ,  C07C39/235

    摘要： Disclosed is a method for preparing an alkali metal salt of a hydroxy-substituted hydrocarbon which comprises the steps of (i) contacting in solvent media at least one hydroxy-substituted hydrocarbon with a base comprising an alkali metal cation; and (ii) devolatilizing the solvent media comprising alkali metal salt by adding or spraying the solvent media into a substantially water-immiscible organic solvent, said solvent being at a temperature greater than the boiling point of solvent media at the prevailing pressure. In one embodiment the solvent media comprises water, and optionally at least one water-soluble protic organic solvent.

    摘要翻译： 公开了一种制备羟基取代烃的碱金属盐的方法，其包括以下步骤：（i）在溶剂介质中使至少一种羟基取代的烃与包含碱金属阳离子的碱接触; 和（ii）通过将溶剂介质加入或喷雾到基本上与水不混溶的有机溶剂中来使包含碱金属盐的溶剂介质脱挥发分，所述溶剂的温度大于溶剂介质在当前压力下的沸点。 在一个实施方案中，溶剂介质包含水和任选的至少一种水溶性质子有机溶剂。

    Method of purifying dianhydrides
    2.
    发明申请
    Method of purifying dianhydrides 有权
    二酸酐的纯化方法

    公开(公告)号：US20070117990A1

    公开(公告)日：2007-05-24

    申请号：US11286190

    申请日：2005-11-22

    申请人： Eric Pressman ,  Albert Stella ,  Beatriz Bernabe ,  Lioba Kloppenburg ,  Lee Bergman

    发明人： Eric Pressman ,  Albert Stella ,  Beatriz Bernabe ,  Lioba Kloppenburg ,  Lee Bergman

    IPC分类号： C07D405/02

    CPC分类号： C07D307/89

    摘要： Disclosed herein is a method for purification of dianhydrides comprising a substantial amount (10000 ppm or more) of at least one metal salt. In one aspect the method is useful for the purification of dianhydrides prepared by the reaction of a halophthalic anhydride with a metal carbonate and may be optionally catalyzed by a phase transfer catalyst. The purification of the dianhydrides may be accomplished by hydrolyzing the dianhydride metal salt mixture directly to a tetraacid with an inorganic acid, followed by separating the impurities from an aqueous phase, and subsequently heating the tetraacid to effect ring closure to form a purified dianhydride having less than 50 parts per million metal halide and lower levels of other residual impurities. In one aspect the method is highly effective in removing phase transfer catalyst impurities such as hexalkylguanidinium halides initially present in the dianhydride undergoing purification.

    摘要翻译： 本文公开了包含大量（10000ppm或更多）至少一种金属盐的二酸酐的纯化方法。 在一个方面，该方法可用于纯化通过卤代邻苯二甲酸酐与金属碳酸盐的反应制备的二酐，并且可任选地通过相转移催化剂催化。 二酸酐的纯化可以通过用无机酸将二酐金属盐混合物直接水解成四元酸，然后从水相中分离出杂质，随后加热四酸以实现闭环以形成具有较少量的纯化二酐 超过50ppm的金属卤化物和较低水平的其他残留杂质。 在一个方面，该方法在除去最初存在于经过纯化的二酐中的相转移催化剂杂质如六烷基卤化镓中是非常有效的。