发明名称 |
METHOD FOR THE DECOMPOSITION OF HIGH BOILING BY-PRODUCTS PRODUCED IN THE SYNTHESIS OF POLYHYDRIC ALCOHOLS |
摘要 |
<p>A process is provided for increasing the yield in the preparation of polyhydric alcohols obtained from methylolated alkanals by hydrogenation, wherein derivatives of these alcohols are decomposed by adding 5 ppm to 1% by weight, preferably 100 to 1000 ppm, of a suitable acid to an anhydrous mixture containing these derivatives, heating the mixture to temperatures of 100 to 300° C. and then separating off the polyhydric alcohol by distillation. This process makes it possible simply and efficiently to decompose compounds which boil above the polyhydric alcohol and are unwanted by-products of its synthesis.</p> |
申请公布号 |
EP1246785(A1) |
申请公布日期 |
2002.10.09 |
申请号 |
EP20000987467 |
申请日期 |
2000.12.28 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
DERNBACH, MATTHIAS;KRATZ, DETLEF;STAMMER, ACHIM;SCHULZ, GERHARD |
分类号 |
C07C29/88;C07C29/141;C07C29/80;C07C31/22;(IPC1-7):C07C29/80 |
主分类号 |
C07C29/88 |
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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