发明名称 |
Fremstilling av diacetaler av glyoksal |
摘要 |
The production of diacetals (I) of glyoxal (II) from aqueous glyoxal and monohydric alcohols (III) with an acid catalyst (IV) involves leaving a mixture of (III) and (II) in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration. <??>production of diacetals (I) of glyoxal (II) from 40-75 wt% aqueous glyoxal and monohydric alcohols (III) with acid catalyst (IV) involves leaving a mixture of (III) and (II) (mol ratio = at least 15:1) and not more than 8 wt% water in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration (without distilling off more than 5 wt% of the alcohol). |
申请公布号 |
NO20024707(D0) |
申请公布日期 |
2002.10.01 |
申请号 |
NO20020004707 |
申请日期 |
2002.10.01 |
申请人 |
BASF AG |
发明人 |
HEYDRICH, GUNNAR;AUST, NICOLA CHRISTIANE;PUETTER, HERMANN;FISCHER, ANDREAS;BOTZEN, JOERG |
分类号 |
C07B61/00;C07C41/50;C07C43/303;C07C47/198;(IPC1-7):C07C |
主分类号 |
C07B61/00 |
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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