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    • 1. 发明授权
    • Process for producing carboxylic acid anhydrides
    • 制备羧酸酐的方法
    • US08450524B2
    • 2013-05-28
    • US13010865
    • 2011-01-21
    • Hui Ting WangChia Jung TsaiChia Hui Shen
    • Hui Ting WangChia Jung TsaiChia Hui Shen
    • C07C51/56
    • C07C51/56C07C53/12
    • The present invention relates to a process for producing carboxylic acid anhydrides by the carbonylation reaction of a carboxylic acid ester, derived from an alcohol and a carboxylic acid, with carbon monoxide containing a small amount of hydrogen in a liquid reaction medium in the presence of a Group VIII B catalyst to produce a carboxylic acid anhydride. The liquid reaction medium comprises the Group VIII B catalyst, an organic halide, the carboxylic acid ester, an alkali metal salt, the carboxylic acid anhydride, the carboxylic acid, N-acetylimidazole as a protecting agent, and ethylidene diacetate (EDA) as an organic promoter. By making use of the protecting agent of N-acetylimidazole, metal ions in the reactor can be prevented from reacting with EDA so as to reduce the formation of hardly-soluble tars during the reaction. Also, the EDA organic promoter is kept at a certain content in the system to promote the overall carbonylation reaction rate.
    • 本发明涉及一种通过在醇和羧酸中衍生的羧酸酯与含有少量氢的一氧化碳在液体反应介质中的存在下,通过羰基化反应制备羧酸酐的方法 VIII族B族催化剂生成羧酸酐。 液体反应介质包括VIII族B催化剂,有机卤化物,羧酸酯,碱金属盐,羧酸酐,羧酸,作为保护剂的N-乙酰基咪唑,以及亚乙基二乙酸酯(EDA) 有机促进剂。 通过利用N-乙酰基咪唑的保护剂,可以防止反应器中的金属离子与EDA反应,从而减少反应期间几乎不溶的焦油的形成。 此外,EDA有机促进剂在系统中保持一定含量以促进总的羰基化反应速率。
    • 2. 发明申请
    • Process for Producing Carboxylic Acid Anhydrides
    • 生产羧酸酐的方法
    • US20120053366A1
    • 2012-03-01
    • US13010865
    • 2011-01-21
    • Hui Ting WangChia Jung TsaiChia Hui Shen
    • Hui Ting WangChia Jung TsaiChia Hui Shen
    • C07C51/56
    • C07C51/56C07C53/12
    • The present invention relates to a process for producing carboxylic acid anhydrides by the carbonylation reaction of a carboxylic acid ester, derived from an alcohol and a carboxylic acid, with carbon monoxide containing a small amount of hydrogen in a liquid reaction medium in the presence of a Group VIII B catalyst to produce a carboxylic acid anhydride. The liquid reaction medium comprises the Group VIII B catalyst, an organic halide, the carboxylic acid ester, an alkali metal salt, the carboxylic acid anhydride, the carboxylic acid, N-acetylimidazole as a protecting agent, and ethylidene diacetate (EDA) as an organic promoter. By making use of the protecting agent of N-acetylimidazole, metal ions in the reactor can be prevented from reacting with EDA so as to reduce the formation of hardly-soluble tars during the reaction. Also, the EDA organic promoter is kept at a certain content in the system to promote the overall carbonylation reaction rate.
    • 本发明涉及一种通过在醇和羧酸中衍生的羧酸酯与含有少量氢的一氧化碳在液体反应介质中的存在下,通过羰基化反应制备羧酸酐的方法 VIII族B族催化剂生成羧酸酐。 液体反应介质包括VIII族B催化剂,有机卤化物,羧酸酯,碱金属盐,羧酸酐,羧酸,作为保护剂的N-乙酰基咪唑,以及亚乙基二乙酸酯(EDA) 有机促进剂。 通过利用N-乙酰基咪唑的保护剂,可以防止反应器中的金属离子与EDA反应,从而减少反应期间几乎不溶的焦油的形成。 此外,EDA有机促进剂在系统中保持一定含量以促进总的羰基化反应速率。
    • 3. 发明授权
    • Process for producing carboxylic acid anhydrides
    • 制备羧酸酐的方法
    • US08097756B2
    • 2012-01-17
    • US12370268
    • 2009-02-12
    • Ching Liang TuChia Hui ShenChia Jung TsaiChi He Chen
    • Ching Liang TuChia Hui ShenChia Jung TsaiChi He Chen
    • C07C51/54
    • C07C51/56C07C53/08
    • A process for producing carboxylic acid anhydrides by the carbonylation reaction of a carboxylic acid ester, derived from an alcohol and a carboxylic acid, with carbon monoxide containing a small amount of hydrogen in a liquid reaction medium in the presence of a Group VIII B catalyst to produce a carboxylic acid anhydride. The reaction medium comprises the Group VIII B catalyst, an organic halide, the carboxylic acid ester, an alkali metal salt, the carboxylic acid anhydride, the carboxylic acid, and at least one ionic liquid consisting of a cation and an anion where the cation of the ionic liquid has a nitrogen-containing heterocyclic structure. The ionic liquid has at least one of the following structural forms: The reaction rate of the carbonylation reaction is increased by the use of the specified ionic liquid promoters.
    • 通过在醇和羧酸中衍生的羧酸酯与含有少量氢的一氧化碳在液体反应介质中在VIII VIII族催化剂存在下羰基化反应制备羧酸酐的方法, 产生羧酸酐。 反应介质包括VIII族B催化剂,有机卤化物,羧酸酯,碱金属盐,羧酸酐,羧酸和至少一种由阳离子和阴离子组成的离子液体,其中阳离子 离子液体具有含氮杂环结构。 离子液体具有以下结构形式中的至少一种:羰基化反应的反应速率通过使用指定的离子液体促进剂而增加。
    • 6. 发明授权
    • Process for producing carboxylic acids
    • 制备羧酸的方法
    • US06784313B2
    • 2004-08-31
    • US10263643
    • 2002-10-04
    • Chia Jung TsaiYao Lung LiuHsi Chin Tsai
    • Chia Jung TsaiYao Lung LiuHsi Chin Tsai
    • C07C5110
    • C07C51/12C07C53/08
    • A process for producing a carboxylic acid having (n+1) carbon atoms, which includes carbonylating an alcohol having n carbon atoms, and/or an ester of the alcohol and the carboxylic acid in each alkyl group with carbon monoxide in the presence of a catalytic system containing a rhodium catalyst. The process uses a reaction medium for the carbonylation that includes: (1) a rhodium catalyst, (2) an organic halide corresponding to said alcohol, (3) an ester of the alcohol and the carboxylic acid, (4) the carboxylic acid, optionally (5) water, a haloid acid, an inorganic halogen salt or an acetate, and (6) a cocatalyst selected from arginine, N-acetyl alanine, or nitrogen- and oxygen-containing organic compounds.
    • 一种具有(n + 1)个碳原子的羧酸的方法,该方法包括在每个烷基中羰基化具有n个碳原子的醇,和/或每个烷基中的醇和羧酸的酯与一氧化碳在一种 含有铑催化剂的催化体系。 该方法使用羰基化反应介质,其包括:(1)铑催化剂,(2)对应于所述醇的有机卤化物,(3)醇和羧酸的酯,(4)羧酸, 任选的(5)水,卤代酸,无机卤素盐或乙酸盐,和(6)选自精氨酸,N-乙酰丙氨酸或含氮和氧的有机化合物的助催化剂。
    • 9. 发明授权
    • Process for preparation of dialkyl carbonate
    • 碳酸二烷基酯的制备方法
    • US07700785B2
    • 2010-04-20
    • US12009101
    • 2008-01-15
    • Chih-Wei ChangChia-Jung TsaiYing-Tien Chen
    • Chih-Wei ChangChia-Jung TsaiYing-Tien Chen
    • C07D233/66C07D237/10
    • C07C68/005C07C69/96
    • Provided is a process for preparation of dialkyl carbonates, comprising the step of performing oxidative carbonylation of an alcohol in liquid phase in the presence of CO and O2, to form dialkyl carbonate in a catalyst system comprising a metal halide as catalyst and at least one nitrogen-containing compound selected from the group consisting of imidazole derivatives (excluding unsubstituted imidazole), benzoimidazole derivatives, pyridazine derivatives, carbazole, acridine and non-cyclic amines as auxiliary catalyst. The process of the invention, by using above catalyst system, can increase the conversion ratio of alcohol and the selectivity of the oxidative carbonylation reaction, thus increasing the total yield of dialkyl carbonate. In addition, the process of the invention has the advantages of reducing the required amount of the catalyst and causing less corrosion to the reactor.
    • 提供了一种制备碳酸二烷基酯的方法,包括在CO和O 2存在下,以液相进行醇的氧化羰基化反应,在包含金属卤化物作为催化剂和至少一种氮的催化剂体系中形成碳酸二烷基酯的步骤 (不包括未取代的咪唑),苯并咪唑衍生物,哒嗪衍生物,咔唑,吖啶和非环胺作为辅助催化剂。 通过使用上述催化剂体系,本发明的方法可以提高醇的转化率和氧化羰基化反应的选择性,从而提高碳酸二烷基酯的总产率。 此外,本发明的方法具有减少所需量的催化剂并且对反应器造成较少腐蚀的优点。
    • 10. 发明申请
    • Process for preparation of dialkyl carbonate
    • 碳酸二烷基酯的制备方法
    • US20080214856A1
    • 2008-09-04
    • US12009101
    • 2008-01-15
    • Chih-Wei ChangChia-Jung TsaiYing-Tien Chen
    • Chih-Wei ChangChia-Jung TsaiYing-Tien Chen
    • C07C69/96
    • C07C68/005C07C69/96
    • Provided is a process for preparation of dialkyl carbonates, comprising the step of performing oxidative carbonylation of an alcohol in liquid phase in the presence of CO and O2, to form dialkyl carbonate in a catalyst system comprising a metal halide as catalyst and at least one nitrogen-containing compound selected from the group consisting of imidazole derivatives (excluding unsubstituted imidazole), benzoimidazole derivatives, pyridazine derivatives, carbazole, acridine and non-cyclic amines as auxiliary catalyst. The process of the invention, by using above catalyst system, can increase the conversion ratio of alcohol and the selectivity of the oxidative carbonylation reaction, thus increasing the total yield of dialkyl carbonate. In addition, the process of the invention has the advantages of reducing the required amount of the catalyst and causing less corrosion to the reactor.
    • 提供了一种制备碳酸二烷基酯的方法,包括在CO和O 2 2存在下在液相中进行醇的氧化羰基化的步骤,在包含金属的催化剂体系中形成碳酸二烷基酯 卤化物作为催化剂和至少一种选自咪唑衍生物(不包括未取代的咪唑),苯并咪唑衍生物,哒嗪衍生物,咔唑,吖啶和非环胺作为辅助催化剂的含氮化合物。 通过使用上述催化剂体系,本发明的方法可以提高醇的转化率和氧化羰基化反应的选择性,从而提高碳酸二烷基酯的总产率。 此外,本发明的方法具有减少所需量的催化剂并且对反应器造成较少腐蚀的优点。