发明名称 |
Verfahren zur Zersetzung von bei der Synthese mehrwertiger Alkohole gebildeter hochsiedender Nebenprodukte |
摘要 |
The invention relates to a method for improving the yield in the production of polyhydric alcohols, by hydrogenation of hydroxymethylated alkanals, by decomposition of derivatives of said alcohols. 5 ppm to 1 wt. %, preferably 100 to 1000 ppm of a suitable acid is added to a water-free mixture, containing the said derivatives, the resulting mixture heated to a temperature of 100 to 300 DEG C and the polyvalent alcohol removed by distillation. The above method permits a simple and effective way of decomposing the undesired compounds formed during this synthesis that boil at a higher temperature than the polyhydric alcohol.
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申请公布号 |
DE19963437(A1) |
申请公布日期 |
2001.07.05 |
申请号 |
DE1999163437 |
申请日期 |
1999.12.28 |
申请人 |
BASF AG |
发明人 |
DERNBACH, MATTHIAS;KRATZ, DETLEF;STAMMER, ACHIM;SCHULZ, GERHARD |
分类号 |
C07C29/88;C07C29/141;C07C29/80;C07C31/22;(IPC1-7):C07C29/88;C07C31/18 |
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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