摘要:
The invention relates to a process for the production of bisphenols from acetone and phenols in the presence of sulfonic acid ion exchanger resins modified with alkyl-SH groups, in which 0.6 to 5% by weight H.sub.2 O is added to the mixture of phenol and acetone before the reaction.
摘要翻译:本发明涉及一种在烷基-SH基团改性的磺酸离子交换树脂存在下由丙酮和酚生产双酚的方法,其中在苯酚和丙酮的混合物中加入0.6-5重量%的H 2 O. 反应。
摘要:
The invention relates to a process for the synthesis of bis-(4-hydroxyphenyl)-alkanes on ion-exchange resins or mixtures of ion-exchange resins which are modified with alkyl-SH groups, wherein the monophenols and carbonyl compounds to be used have first been purified to remove substances which can transfer alkyl groups.