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29 条记录 (耗时 0.011 秒)

    Method for transesterification of triglycerides
    4.
    发明申请
    Method for transesterification of triglycerides 失效
    甘油三酯的酯交换法

    公开(公告)号：US20080015375A1

    公开(公告)日：2008-01-17

    申请号：US11827490

    申请日：2007-07-12

    申请人： Rajiv Manohar Banavali ,  Abraham Benderly

    发明人： Rajiv Manohar Banavali ,  Abraham Benderly

    IPC分类号： C11C3/04

    CPC分类号： C07C67/03 ,  C11C3/003 ,  Y02E50/13 ,  Y02P30/20 ,  C07C69/52 ,  C07C69/24

    摘要： A method for transesterification of triglycerides, especially those containing free fatty acids, with methanol. The method uses a catalyst derived from an acidic ion exchange resin. The catalyst is contacted with a reaction mixture containing a triglyceride and methanol under conditions suitable for transesterification.

    摘要翻译： 甘油三酸酯，特别是含有游离脂肪酸的甘油三酯与甲醇的酯交换的方法。 该方法使用由酸性离子交换树脂衍生的催化剂。 在适于酯交换反应条件下，将催化剂与含有甘油三酯和甲醇的反应混合物接触。

    Method for selective esterification of free fatty acids in triglycerides
    7.
    发明申请
    Method for selective esterification of free fatty acids in triglycerides 审中-公开
    在甘油三酯中选择性酯化游离脂肪酸的方法

    公开(公告)号：US20110065943A1

    公开(公告)日：2011-03-17

    申请号：US12586003

    申请日：2009-09-16

    申请人： Rajiv Manohar Banavali ,  Alfred Karl Schultz

    发明人： Rajiv Manohar Banavali ,  Alfred Karl Schultz

    IPC分类号： C11C3/00

    CPC分类号： C11C3/003

    摘要： A method for the selective esterification of free fatty acids, alone or in triglycerides, with C1-C8 aliphatic alcohols or diols. The method uses a selective heterogeneous esterification catalyst. The catalyst is contacted with a reaction mixture containing a triglyceride having at least 0.5% free fatty acids, or a reaction mixture containing only free fatty acids, and a C1-C8 aliphatic alcohol or diol under conditions suitable for esterification.

    摘要翻译： 用C1-C8脂族醇或二醇选择性酯化单独或甘油三酸酯的游离脂肪酸的方法。 该方法使用选择性异相酯化催化剂。 使催化剂与含有至少0.5％游离脂肪酸的甘油三酯或仅含游离脂肪酸的反应混合物和C1-C8脂族醇或二醇在适于酯化的条件下反应混合物接触。

    Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil
    9.
    发明授权
    Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil 失效
    在原油中含有酰胺和羧基作为沥青质分散剂的化合物

    公开(公告)号：US07122112B2

    公开(公告)日：2006-10-17

    申请号：US10447730

    申请日：2003-05-29

    申请人： Ravindranath Mukkamala ,  Rajiv Manohar Banavali

    发明人： Ravindranath Mukkamala ,  Rajiv Manohar Banavali

    IPC分类号： C10G33/00 ,  C07C7/20

    CPC分类号： C10G9/16

    摘要： A composition containing: (a) 0.001% to 20% of at least one compound represented by formula (II), wherein R5 is C1–C70 difunctional alkyl or C6–C14 difunctional aryl, and R3and R4 independently are hydrogen, alkyl, heterocyclic, aryl or aralkyl groups; and (b) crude oil. In addition to dispersing asphaltenes, the composition of the present invention typically also increases demulsibility, reduces viscosity, reduces sediment formation, reduces surface fouling and reduces corrosion.

    摘要翻译： 一种组合物，其含有：（a）0.001％至20％的至少一种由式（II）表示的化合物，其中R 5是C 1 -C 70 二官能烷基或C 6 -C 14二官能芳基，R 3和R 4独立地是 是氢，烷基，杂环，芳基或芳烷基; 和（b）原油。 除了分散沥青质之外，本发明的组合物通常还增加了破乳性，降低了粘度，减少了沉积物的形成，减少了表面污垢并降低了腐蚀。