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23 条记录 (耗时 0.019 秒)

    Production of polycarboxylic acids with hafnium-activated cobalt catalyst
    1.
    发明授权
    Production of polycarboxylic acids with hafnium-activated cobalt catalyst 失效
    用铪活化钴催化剂生产多元羧酸

    公开(公告)号：US5112992A

    公开(公告)日：1992-05-12

    申请号：US710973

    申请日：1991-06-06

    申请人： Frank G. Belmonte ,  Kristi A. Fjare ,  Walter Partenheimer

    发明人： Frank G. Belmonte ,  Kristi A. Fjare ,  Walter Partenheimer

    IPC分类号： C07C51/265

    CPC分类号： C07C51/265

    摘要： The addition of hafnium to oxidation catalysts provided by a heavy transition metal-bromine ion catalyst combination containing cobalt-manganese-bromine or manganese-bromine or cobalt-bromine and a soluble source of hafnium uniquely increases catalytic activity of the said catalyst combination for converting methyl groups on the benzene nucleus. The presence of hafnium in the total reactor contents is equal to or less than 250 parts per million by weight of the total reactor mother liquor. The solubility of the hafnium in the reactor solvent is such that reactor product cake contains less than 0.3 ppm by weight. Bromine emissions can be reduced.

    摘要翻译： 由含有钴 - 锰 - 溴或锰 - 溴或钴 - 溴的重过渡金属 - 溴离子催化剂组合物和可溶性铪源提供的氧化催化剂中的铪的添加独特地提高了所述催化剂组合的转化甲基 组在苯核上。 总反应器内容物中铪的存在量等于或小于总反应器母液重量的250份/百万份。 铪在反应器溶剂中的溶解度使得反应器产物饼含有小于0.3ppm重量。 可以减少溴排放。

    Preparation of 1,1,1,3,3,3-hexafluoro-2,2-Di(3,4-dicarboxyphenyl)propane anhydride
    3.
    发明授权
    Preparation of 1,1,1,3,3,3-hexafluoro-2,2-Di(3,4-dicarboxyphenyl)propane anhydride 失效
    1,1,1,3,3,3-六氟-2,2-二（3,4-二羧基苯基）丙烷酸酐的制备

    公开(公告)号：US5194633A

    公开(公告)日：1993-03-16

    申请号：US798171

    申请日：1991-11-26

    申请人： Walter Partenheimer ,  Douglas E. Fjare ,  Gayle G. Chany

    发明人： Walter Partenheimer ,  Douglas E. Fjare ,  Gayle G. Chany

    IPC分类号： C07C51/265

    CPC分类号： C07C51/265

    摘要： A process for preparing 1,1,1,3,3,3-hexafluoro-2,2-di(3,4-dicarboxyphenyl) propane anhydride is disclosed. 1,1,1,3,3,3-hexafluoro-2,2-di(3,4 -dimethylphenyl) propane is oxidized under liquid phase conditions in the presence of an oxygen-containing gas, bromine and heavy metal catalyst components to 1,1,1,3,3,3-hexafluoro-2,2-di(3,4-dicarboxyphenyl) propane in high yield. Addition of an anhydride of a low molecular weight carboxylic acid to the oxidation reaction mixture converts the 1,1,1-hexafluoro-2,2-di(3,4-dicarboxyphenyl)propane to 1,1,1,3,3,3-hexafluoro-2,2-di(3,4-dicarboxyphenyl) propane anhydride.

    摘要翻译： 公开了制备1,1,1,3,3,3-六氟-2,2-二（3,4-二羧基苯基）丙烷酸酐的方法。 1,1,1,3,3,3-六氟-2,2-二（3,4-二甲基苯基）丙烷在液相条件下在含氧气体，溴和重金属催化剂组分存在下被氧化， 1,1,3,3,3-六氟-2,2-二（3,4-二羧基苯基）丙烷。 向氧化反应混合物中加入低分子量羧酸的酸酐将1,1,1-六氟-2,2-二（3,4-二羧基苯基）丙烷转化成1,1,1,3,3， 3-四氟-2,2-二（3,4-二羧基苯基）丙烷酸酐。

    Minimizing oxygenated aromatic compound content of aqueous solution of reclaimed metal oxidation catalyst
    4.
    发明授权
    Minimizing oxygenated aromatic compound content of aqueous solution of reclaimed metal oxidation catalyst 失效
    最小化再生金属氧化催化剂水溶液的含氧芳香化合物含量

    公开(公告)号：US4284523A

    公开(公告)日：1981-08-18

    申请号：US152159

    申请日：1980-05-22

    申请人： John K. Darin ,  Walter Partenheimer ,  Joseph D. Figuly

    发明人： John K. Darin ,  Walter Partenheimer ,  Joseph D. Figuly

    IPC分类号： B01J23/94 ,  C07C51/48 ,  B01J23/92 ,  C01G45/00 ,  C01G51/06 ,  C07C51/265

    CPC分类号： C07C51/48 ,  B01J23/94 ,  Y02P20/584

    摘要： This invention relates to the reclamation of metal oxidation catalysts by water extraction of a high boiling residual mixture remaining after separation of a benzene di- and/or tricarboxylic acid; e.g., the phthalic acids, trimesic acid or trimellitic acid and reaction solvent, if one is used, from the fluid oxidation effluents produced by the catalytic liquid phase oxidation of a xylene, mesitylene, psendocumene or o-xylene and psendocumene with a source of molecular oxygen in the presence or in the absence of a reaction solvent.

    摘要翻译： 本发明涉及通过在分离苯二 - 和/或三羧酸之后残留的高沸点残留混合物的水萃取来回收金属氧化催化剂; 例如邻苯二甲酸，均苯三酸或偏苯三酸和反应溶剂（如果使用的话）来自由二甲苯，均三甲苯，孟沙龙或邻二甲苯的催化液相氧化产生的流体氧化废水和具有分子源的psendocumene 氧气存在或不存在反应溶剂。

    Method for stabilizing a phosphorus-vanadium-oxygen complex catalyst
    5.
    发明授权
    Method for stabilizing a phosphorus-vanadium-oxygen complex catalyst 失效
    稳定磷 - 钒 - 氧络合物催化剂的方法

    公开(公告)号：US4094816A

    公开(公告)日：1978-06-13

    申请号：US753551

    申请日：1976-12-22

    申请人： Walter Partenheimer

    发明人： Walter Partenheimer

    IPC分类号： B01J23/94 ,  B01J27/28 ,  C07C51/215 ,  C07C51/25 ,  B01J23/92

    CPC分类号： C07C51/215 ,  B01J23/94 ,  B01J27/285 ,  C07C51/25 ,  Y02P20/584 ,  Y10S502/50

    摘要： The present disclosure relates to a method for the stabilization of certain phosphorus-vanadium-oxygen complex catalysts by the repetitive reactivation of such catalysts using a specified class of reactivating agents. The present method is specifically applicable to the stabilization of phosphorus-vanadium-oxygen complex catalysts which are suitable for the production of maleic anhydride from aromatic or aliphatic feed streams. In a specific instance, the stabilization process incorporates passing a feed stream of an aliphatic hydrocarbon and oxygen over a phosphorus-vanadium-oxygen catalyst to cause it to deactivate, thereafter contacting the deactivated catalyst with a specified class of reactivating agents and thereafter repeating this sequence at least once. This process tempers the catalyst so it deactivates at a lower rate and is improved in its performance.

    摘要翻译： 本公开内容涉及通过使用特定类别的再活化剂重复地再活化这些催化剂来稳定某些磷 - 钒 - 氧络合物催化剂的方法。 本方法特别适用于适用于从芳族或脂肪族原料流生产马来酸酐的磷 - 钒 - 氧络合物催化剂的稳定化。 在具体情况下，稳定过程包括使磷 - 钒 - 氧催化剂上的脂族烃和氧气进料流通过，使其失活，然后使失活的催化剂与特定类别的再活化剂接触，然后重复该顺序 至少一次。 该方法使催化剂变得缓和，使其以较低的速率失活并且其性能得到改善。

    Process for making aromatic polycarboxylic acids and oxidation catalyst system
    7.
    发明授权
    Process for making aromatic polycarboxylic acids and oxidation catalyst system 失效
    制备芳族多元羧酸和氧化催化剂体系的方法

    公开(公告)号：US5081290A

    公开(公告)日：1992-01-14

    申请号：US541617

    申请日：1990-06-21

    申请人： Walter Partenheimer ,  Diane J. Graziano

    发明人： Walter Partenheimer ,  Diane J. Graziano

    IPC分类号： C07C51/265

    CPC分类号： C07C51/265

    摘要： There is provided a process for the partial oxidation of a polymethylbenzene to the corresponding aromatic polycarboxylic acid, which process comprises contacting in a reaction zone said polymethylbenzene with molecular oxygen in the presence of an oxidation catalyst comprising at least one heavy-metal compound, said heavy-metal compound being acetate free, a source of bromine, and a non-metal acetate compound, the concentration of acetate in the reaction zone being employed to control the rate of oxidation and the selectivity of oxidation.There is also provided the catalyst that is employed in the process.

    摘要翻译： 提供了将聚甲基苯部分氧化成相应的芳族多羧酸的方法，该方法包括在包含至少一种重金属化合物的氧化催化剂的存在下，在所述聚甲基苯与分子氧的反应区中接触所述重质 不含乙酸的金属化合物，溴源和非金属乙酸酯化合物，反应区中的乙酸盐浓度用于控制氧化速率和氧化选择性。 还提供了在该方法中使用的催化剂。

    Removal of nickel from cobalt and manganese
    8.
    发明授权
    Removal of nickel from cobalt and manganese 失效
    从钴和锰中去除镍

    公开(公告)号：US4228091A

    公开(公告)日：1980-10-14

    申请号：US1953

    申请日：1979-01-08

    申请人： Walter Partenheimer

    发明人： Walter Partenheimer

    IPC分类号： C01G53/00 ,  C07F15/04 ,  C22B3/32 ,  C22B47/00 ,  C07F11/00 ,  C07F15/06

    CPC分类号： C22B3/0024 ,  C01G53/003 ,  C22B23/0484 ,  C22B47/00 ,  Y02P10/234

    摘要： This invention relates to the removal of nickel, iron and copper co-dissolved with cobalt or manganese, or cobalt and manganese in water so that cobalt, manganese, or cobalt and manganese can be precipitated as carbonates and then converted to their acetates sufficiently low in nickel, iron and copper so that said acetates can be recycled to the liquid phase air oxidation of a di- or trimethyl benzene to its corresponding di- or tricarboxylic acid without material inhibition of such oxidation.

    摘要翻译： 本发明涉及去除与钴或锰或钴和锰在水中共溶解的镍，铁和铜，使得钴，锰或钴和锰可以作为碳酸盐沉淀，然后转化成其乙酸盐足够低 镍，铁和铜，使得所述乙酸盐可以再循环到二 - 或三甲基苯的液相空气氧化成其相应的二 - 或三羧酸，而不会对这种氧化产生物质抑制。

    Reactivation of a phosphorus-vanadium-oxygen complex oxidation catalyst
    9.
    发明授权
    Reactivation of a phosphorus-vanadium-oxygen complex oxidation catalyst 失效
    磷钒复合氧化催化剂的再活化

    公开(公告)号：US4089807A

    公开(公告)日：1978-05-16

    申请号：US789536

    申请日：1977-04-21

    申请人： Walter Partenheimer

    发明人： Walter Partenheimer

    IPC分类号： B01J23/94 ,  B01J27/28 ,  C07C51/215 ,  C07C51/25 ,  B01J23/92 ,  C07D307/60 ,  C07D307/89

    CPC分类号： C07C51/215 ,  B01J23/94 ,  B01J27/285 ,  C07C51/25 ,  Y02P20/584

    摘要： The present disclosure relates to a method of reactivation of phosphorus-vanadium-oxygen complex catalysts which are useful in the oxidation of hydrocarbons in particular acylic aliphatics such as alkanes or alkenes to oxidation products including aldehydes, ketones, acids and anhydrides. The present method of reactivation is implemented by passing selected halide containing materials over the catalyst at reactivation conditions to effect formation of a volatile vanadium compound which is removed from the catalyst. This procedure is applicable to reactivation of catalyst which during normal oxidation process become deactivated.

    摘要翻译： 本公开涉及一种可用于将烃特别是酰基脂肪族如烷烃或烯烃氧化成氧化产物（包括醛，酮，酸和酸酐）的磷 - 钒 - 氧络合物催化剂的再活化方法。 本发明的再活化方法是通过将选择的含卤化物材料在再活化条件下通过催化剂来实现的，以形成从催化剂中除去的挥发性钒化合物。 该方法适用于在正常氧化过程中失活的催化剂的再活化。