发明名称 |
METHODS FOR THE PRODUCTION OF e-CAPROLACTONE AND 1,6-HEXANEDIOL |
摘要 |
The invention relates to methods for producing 1,6-hexanediol and very pure e-caprolactone from a dicarboxylic acid solution (DCL), comprising steps (a) esterification of the DCL with alcohols, (b) partial catalytic hydrogenation of the esters, (c) separation by distillation of 1,6-hexanediol and low-boiling fractions as a top product, and (d) cyclization of the 6-hydroxycaproic acid ester contained in the bottom fraction in the presence of an alcohol boiling at a temperature exceeding the boiling point of caprolactane. |
申请公布号 |
WO2012032002(A3) |
申请公布日期 |
2012.05.10 |
申请号 |
WO2011EP65276 |
申请日期 |
2011.09.05 |
申请人 |
BASF SE;ABILLARD, OLIVIER;BREUNINGER, DANIEL;KRETZSCHMAR, EVA;PINKOS, ROLF |
发明人 |
ABILLARD, OLIVIER;BREUNINGER, DANIEL;KRETZSCHMAR, EVA;PINKOS, ROLF |
分类号 |
C07D313/04;C07C29/149 |
主分类号 |
C07D313/04 |
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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