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公开(公告)号：EP2066614A1
公开(公告)日：2009-06-10
申请号：EP07790454.8
申请日：2007-06-29
申请人： CHIYODA CORPORATION
IPC分类号： C07C51/54
摘要： An iodide compound is adsorbed and removed from an organic acid containing the iodide compound as an impurity by passing the organic acid through a packed bed of a cation-exchange resin having silver ion carried thereon at 50 C or lower. The cation-exchange resin is a macroporous-type resin with an average particle size of 0.3 to 0.6 mm and an average pore size of 15 to 28 nm, and silver ion substitutes for 40 to 60% of the active site.
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2.发明公开METHOD FOR ENHANCING THE CARBONYLATION RATE OF METHANOL 有权VERFAHREN ZURERHÖHUNGDER CARBONYLIERUNGSRATE冯甲醇
公开(公告)号：EP2535325A1
公开(公告)日：2012-12-19
申请号：EP11742014.1
申请日：2011-02-08
申请人： Chiyoda Corporation
发明人： YOU, Zhixiong , MINAMI, Takeshi , YIN, Chunji , UMEHARA, Yoichi , MATSUMURA, Tetsuro , HASHIMOTO, Chikako , HOSONO, Yasuo
CPC分类号： C08F226/06 , C07C51/12 , C08F212/36 , C07C53/08
摘要： According to a method for producing acetic acid by carbonylation of methanol characterized in that an acid having an acid dissociation constant (pK a ) smaller than the constant of acetic acid is allowed to be present in the reaction system, acetic acid can be produced by the reaction of methanol and carbon monoxide in a reaction liquid in the presence of a solid catalyst containing rhodium and alkyl iodide, to achieve an enhanced reaction rate of carbonylation of methanol in producing acetic acid in the region at a high carbonylation degree (Ca>0.8 mol/mol) for more efficient production of acetic acid.
摘要翻译： 根据通过羰基化甲醇制备乙酸的方法，其特征在于，在反应体系中存在酸解离常数（pK a）小于乙酸常数的酸，可以通过 在含有铑和烷基碘的固体催化剂存在下，甲醇和一氧化碳在反应液中的反应，以在羰基化程度高（Ca> 0.8mol）的区域中提高甲醇生产乙酸的羰基化反应速率 / mol），以更有效地生产乙酸。
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公开(公告)号：EP2535325B1
公开(公告)日：2018-04-25
申请号：EP11742014.1
申请日：2011-02-08
申请人： Chiyoda Corporation
发明人： YOU, Zhixiong , MINAMI, Takeshi , YIN, Chunji , UMEHARA, Yoichi , MATSUMURA, Tetsuro , HASHIMOTO, Chikako , HOSONO, Yasuo
CPC分类号： C08F226/06 , C07C51/12 , C08F212/36 , C07C53/08
摘要： According to a method for producing acetic acid by carbonylation of methanol characterized in that an acid having an acid dissociation constant (pK a ) smaller than the constant of acetic acid is allowed to be present in the reaction system, acetic acid can be produced by the reaction of methanol and carbon monoxide in a reaction liquid in the presence of a solid catalyst containing rhodium and alkyl iodide, to achieve an enhanced reaction rate of carbonylation of methanol in producing acetic acid in the region at a high carbonylation degree (Ca>0.8 mol/mol) for more efficient production of acetic acid.
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