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    • 42. 发明公开
    • Catalyst and method for producing carboxylic acid and/or carboxylic anhydride in the presence of the catalyst
    • 催化剂和方法在催化剂的存在下制备羧酸和/或羧酸酐的
    • EP2135671A2
    • 2009-12-23
    • EP09162948.5
    • 2009-06-17
    • Mitsubishi Gas Chemical Company, Inc.
    • Okamoto, Atsushi
    • B01J23/28B01J27/199B01J27/20C07C37/60C07C51/15C07D493/04
    • C07C51/235B01J21/18B01J23/20B01J23/22B01J23/24B01J23/28B01J27/198B01J37/0045C07C51/265C07C63/313
    • An object of the present invention is to provide a catalyst exhibiting excellent performance particularly in partial oxidation reaction. Another object is to provide a method for efficiently producing carboxylic acid or carboxylic anhydride through vapor-phase partial oxidation of an organic compound by use of an oxygen-containing gas in the presence of the catalyst. The catalyst contains (1) diamond; (2) at least one species selected from among Group 5 transition element oxides, collectively called oxide A; and (3) at least one species selected from among Group 4 transition element oxides, collectively called oxide B. The method for producing a carboxylic acid or a carboxylic anhydride includes subjecting an organic compound to vapor phase partial oxidation by use of an oxygen-containing gas in the presence of the catalyst, wherein the organic compound is an aromatic compound having one or more substituents in a molecule thereof, the substituents each including a carbon atom bonded to an aromatic ring.
    • 本发明的一个目的是提供一种催化剂具有特别在部分氧化反应的优异性能。 另一个目的是提供一种通过有机化合物的气相部分氧化通过在催化剂的存在下使用含氧气的气体有效地生产羧酸或羧酸酐的方法。 该催化剂含有(1)金刚石; (2)从第5族过渡元素的氧化物,统称氧化物A中选择的至少一种物质; 和(3)从第4族过渡元素的氧化物中选择的至少一种物质,统称氧化物B.用于制造羧酸或羧酸酐的方法,包括:通过使用经受有机化合物气相部分氧化的含氧 在催化剂的存在下,worin有机化合物气体是在分子中具有一个或多个取代其的芳香族化合物,均包括在芳环键合到碳原子上的取代基。
    • 46. 发明公开
    • Preparation of carbamates from aromatic amines and organic carbonates
    • 从芳香胺和有机碳酸酯制备氨基甲酸酯
    • EP0065025A1
    • 1982-11-24
    • EP81103809.0
    • 1981-05-18
    • THE DOW CHEMICAL COMPANY
    • Gurgiolo, Arthur Emilio
    • C07C125/06B01J23/06B01J27/04B01J27/20B01J31/04B01J31/06B01J31/08B01J31/12B01J31/22B01J31/26
    • C07C271/06
    • This invention is directed to a process for preparing carbamates from an organic carbonate and an aromatic amine in the presence of a catalyst. The reaction is conducted at a temperature of at least 200°C and the catalyst is at least one member selected from the group consisting of (1) zinc or divalent tin salts of monocarboxylic acids having a pKa value of less than 2.8 other than such salts of trifluoroacetic acid; (2) divalent cobalt or trivalent cobalt salts of monocarboxylic acids having a pKa value of less that 2.8; (3) zinc or divalent tin or divalent cobalt or trivalent cobalt salts of organic materials having more than one -COOH group per molecule; (4) divalent cobalt or trivalent cobalt salts of a 1,3-diketone having from 5 to 10 carbon atoms; (5) tetravalent alkyl tin compounds or tetravalent alkyl tin oxides represented by formulas I and II:
      and
      wherein each R is independently a hydrocarbon group having from 1 to 10 carbon atoms, or a carboxylate group having from 2 to 10 carbon atoms, X is a halogen atom, x has an average value of from 1 to 5, and y has a value of from 1 to 4; and (6) an inorganic zinc compound selected from zinc carbonate, zinc sulfide, and zinc oxide.
    • 本发明涉及在催化剂存在下由有机碳酸酯和芳族胺制备氨基甲酸酯的方法。 反应在至少200℃的温度下进行,并且催化剂是选自以下的至少一种:(1)pKa值小于2.8的一元羧酸的锌或二价锡盐,除了这些盐以外 的三氟乙酸; (2)pKa值小于2.8的一元羧酸的二价钴或三价钴盐; (3)每分子具有多于一个-COOH基团的锌或二价锡或有机材料的二价钴或三价钴盐; (4)具有5至10个碳原子的1,3-二酮的二价钴或三价钴盐; (5)由式I和II表示的四价烷基锡化合物或四价烷基锡氧化物:并且其中每个R独立地为具有1至10个碳原子的烃基或具有2至10个碳原子的羧酸酯基团,X为 卤素原子,x的平均值为1至5,并且y的值为1至4; 和(6)选自碳酸锌,硫化锌和氧化锌的无机锌化合物。