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1. 发明申请

WO2004033407A3 PROCESS FOR PRODUCING CARBOXYLIC ACID AND SYSTEM FOR PRODUCING THE SAME 审中-公开
标题翻译：生产羧酸的方法及其制备方法
公开(公告)号：WO2004033407A3
公开(公告)日：2005-02-24
申请号：PCT/JP0312696
申请日：2003-10-03
申请人： DAICEL CHEM , HORIGUCHI AKIRA , INA TOMOHIDE , MIURA HIROYUKI
发明人： HORIGUCHI AKIRA , INA TOMOHIDE , MIURA HIROYUKI
IPC分类号： B01D3/14 , C07B61/00 , C07C51/12 , C07C51/44 , C07C53/08 , C07C53/122 , C07C53/124
CPC分类号： C07C51/12 , C07C51/44 , C07C53/08 , C07C53/122
摘要： In the presence of a catalytic system, an alcohol having "n" carbon atom(s) or a derivative thereof is allowed to react with carbon monoxide in a reactor 3 continuously, a higher by catalyst component is separated from the resultant reaction mixture by a catalyst-separating column 5 to give a crude mixture, the crude mixture is fed to a higher by component-separation column 8 to separate an overhead fraction from a bottom fraction containing at least a carboxylic acid having "n+2" carbon atoms, the overhead fraction is fed to a carboxylic acid-separating column 11, and are distilled in the presence of at least water and an ester of the carboxylic acid with the alcohol to separate a overhead fraction containing at least the ester and water from a bottom fraction containing the carboxylic acid having "n+l" carbon atoms. The overhead fraction from the carboxylic acid-separating column is fed to an aldehyde-separating column 14 to remove an overhead fraction containing an aldehyde. Such a process insures that impurities are efficiently separated from a reaction mixture by carbonylation of an alcohol, and that a carboxylic acid is purified easily at a lower cost.
摘要翻译：在催化体系的存在下，使具有“n”个碳原子的醇或其衍生物的醇连续地与反应器3中的一氧化碳反应，通过催化剂组分将较高的催化剂组分与所得反应混合物分离催化剂分离塔5以得到粗混合物，粗混合物通过组分分离塔8进料到较高的分离塔8中，以分离塔塔馏分与至少含有“n + 2”碳原子的羧酸的塔底级分，将塔顶馏分进料到羧酸分离塔11中，并在至少水和羧酸的酯存在下与醇蒸馏，以从含有至少含有酯和水的塔底馏分分离含有具有“n + 1”个碳原子的羧酸。将来自羧酸分离塔的塔顶馏分进料到醛分离塔14以除去含有醛的塔顶馏分。这样的方法确保通过醇的羰基化有效地将杂质与反应混合物分离，并且以较低的成本容易地纯化羧酸。

2. 发明申请

WO2004033407A2 PROCESS FOR PRODUCING CARBOXYLIC ACID AND SYSTEM FOR PRODUCING THE SAME 审中-公开
标题翻译：生产羧酸的方法及其制备方法
公开(公告)号：WO2004033407A2
公开(公告)日：2004-04-22
申请号：PCT/JP2003/012696
申请日：2003-10-03
申请人： DAICEL CHEMICAL INDUSTRIES, LTD. , HORIGUCHI, Akira , INA, Tomohide , MIURA, Hiroyuki
发明人： HORIGUCHI, Akira , INA, Tomohide , MIURA, Hiroyuki
IPC分类号： C07C51/12
CPC分类号： C07C51/12 , C07C51/44 , C07C53/08 , C07C53/122
摘要： In the presence of a catalytic system, an alcohol having "n" carbon atom(s) or a derivative thereof is allowed to react with carbon monoxide in a reactor 3 continuously, a higher by catalyst component is separated from the resultant reaction mixture by a catalyst-separating column 5 to give a crude mixture, the crude mixture is fed to a higher by component-separation column 8 to separate an overhead fraction from a bottom fraction containing at least a carboxylic acid having "n+2" carbon atoms, the overhead fraction is fed to a carboxylic acid-separating column 11, and are distilled in the presence of at least water and an ester of the carboxylic acid with the alcohol to separate a overhead fraction containing at least the ester and water from a bottom fraction containing the carboxylic acid having "n+l" carbon atoms. The overhead fraction from the carboxylic acid-separating column is fed to an aldehyde-separating column 14 to remove an overhead fraction containing an aldehyde. Such a process insures that impurities are efficiently separated from a reaction mixture by carbonylation of an alcohol, and that a carboxylic acid is purified easily at a lower cost.
摘要翻译：在催化体系的存在下，使具有“n”个碳原子的醇或其衍生物的醇连续地与反应器3中的一氧化碳反应，通过催化剂组分将较高的催化剂组分与所得反应混合物分离催化剂分离塔5以得到粗混合物，粗混合物通过组分分离塔8进料到较高的分离塔8中，以分离塔塔馏分与至少含有“n + 2”碳原子的羧酸的塔底级分，将塔顶馏分进料到羧酸分离塔11中，并在至少水和羧酸的酯存在下与醇蒸馏，以从含有至少含有酯和水的塔底馏分分离含有具有“n + 1”个碳原子的羧酸。将来自羧酸分离塔的塔顶馏分进料到醛分离塔14以除去含有醛的塔顶馏分。这样的方法确保通过醇的羰基化有效地将杂质与反应混合物分离，并且以较低的成本容易地纯化羧酸。

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