| 摘要 |
The invention relates to a method for the production of diaminodiarylmethanes, comprising the steps: a) reaction of an aromatic amine with an agent liberating methylene groups in the presence of homogenous acid catalysts, b) removal of the homogenous acid catalyst from the reaction product, c) work-up and purification of the reaction product, whereby the homogenous acid catalyst is removed from the reaction mixture by adsorption on a solid adsorption agent.
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