发明名称 |
METHOD FOR INCREASING YIELD IN THE PRODUCTION OF POLYVALENT ALCOHOLS BY SPLITTING BY-PRODUCTS CONTAINING ACETAL |
摘要 |
The invention relates to a method for increasing yield in the production of polyvalent alcohols, especially trimethylolpropane, obtained by condensing formaldehyde with a higher aldehyde. According to the inventive method, acid treatment is carried out on a mixture (high- boiling fraction) that is obtained by reprocessing, contains derivatives of said alcohols and has a higher boiling point than the respective alcohol, and the polyvalent alcohol is recovered from the acid-treated high-boiling fraction. The inventive method is characterised in that the water content of the high-boiling fraction amounts to between 20 and 90 wt. % in relation to the entire mixture of the high-boiling fraction and water.
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申请公布号 |
KR20050025357(A) |
申请公布日期 |
2005.03.14 |
申请号 |
KR20057001372 |
申请日期 |
2005.01.25 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
DERNBACH, MATTHIAS;MELDER, JOHANN PETER;SIRCH, TILMAN;WARTINI, ALEXANDER |
分类号 |
C07C29/10;C07C29/141;C07C29/88;C07C45/75;(IPC1-7):C07C29/10;C07C29/132;C07C29/74 |
主分类号 |
C07C29/10 |
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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