发明名称 |
METHOD FOR PRODUCING DIAMINODIPHENYL ALKANES |
摘要 |
The invention relates to a method for producing diaminodiphenyl alkanes, wherein an aromatic amine, which can be substituted or unsubstituted, is reacted with a C1-C3 aldehyde in the presence of a heterogeneous catalyst, said catalyst being a mesoporous acidic ion exchanger based on a divinylbenzene/styrene copolymer and the catalyst having acid centers in a concentration of 2 to 6 eq/kg measured according to DIN 54 403 and the average pore diameter of the catalyst particles being 10 to 32 nm measured according to ASTM D 4222, and the content of polynuclear compounds in the reaction mixture being > 10 and = 15% by weight. |
申请公布号 |
WO2009132883(A3) |
申请公布日期 |
2010.01.21 |
申请号 |
WO2009EP52768 |
申请日期 |
2009.03.10 |
申请人 |
EVONIK DEGUSSA GMBH;KRECZINSKI, MANFRED;GRUND, GERDA |
发明人 |
KRECZINSKI, MANFRED;GRUND, GERDA |
分类号 |
C07C209/78;C07C211/50 |
主分类号 |
C07C209/78 |
代理机构 |
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代理人 |
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地址 |
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