发明名称 |
Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride |
摘要 |
Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).
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申请公布号 |
US2006052631(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
US20050532561 |
申请日期 |
2005.04.25 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
PASTRE JORG;EXNER KAI M.;STUER WOLFRAM;GEIBLER ELKE;MACHHAMMER OTTO |
分类号 |
C07C61/08;C07C51/09;C07C51/54;C07C51/56 |
主分类号 |
C07C61/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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