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1. 发明授权

US4328377A Process for producing phenolic compounds 失效
标题翻译：酚类化合物的制备方法
公开(公告)号：US4328377A
公开(公告)日：1982-05-04
申请号：US204172
申请日：1980-11-05
申请人： Akira Mori , Sekijiro Noda , Hiroshi Osuo , Akio Kanazawa , Tadahiko Nishimura , Masatoshi Yamamoto , Yoshio Tomatsu
发明人： Akira Mori , Sekijiro Noda , Hiroshi Osuo , Akio Kanazawa , Tadahiko Nishimura , Masatoshi Yamamoto , Yoshio Tomatsu
IPC分类号： C07C27/00 , C07C37/08 , C07C37/68 , C07C37/74 , C07C39/04 , C07C67/00
CPC分类号： C07C37/68 , C07C37/08 , C07C37/72 , C07C37/74
摘要： In a process for producing a phenolic compound which comprises treating an aralkyl hydroperoxide with a mineral acid to cleave it to phenolic compound and a ketone, neutralizing or removing the mineral acid, feeding the resulting acid cleavage mixture containing the salt to a distillation column, distilling it therein to separate it into an overhead fraction consisting mainly of the ketone and a bottom fraction consisting mainly of the phenolic compound, and recovering the phenolic compound from the bottom fraction; the improvement which comprises withdrawing a liquid layer from a site of feeding the acid cleavage mixture in the distillation column or from a site below it but above the bottom of the distillation column, subjecting the liquid layer to an oil-water separating means, recycling the separated oil layer to a site below said site of withdrawal, optionally feeding a hydrocarbon having a lower boiling point than the phenolic compound but a higher boiling point than the keton and/or water to the distillation column, and recovering the phenolic compound from the bottom fraction whose salt content has thus been reduced.
摘要翻译：在制备酚类化合物的方法中，其包括用无机酸处理芳烷基氢过氧化物以将其切割成酚类化合物和酮，中和或除去无机酸，将所得到的含有该盐的酸裂解混合物进料到蒸馏塔中，蒸馏在其中将其分离成主要由酮和主要由酚类化合物组成的底部馏分组成的塔顶馏分，并从底部馏分回收酚类化合物; 该改进包括从蒸馏塔中的酸裂解混合物的供给部位或从蒸馏塔下方但位于蒸馏塔底部的位置排出液体层，使液体层进入油水分离装置，循环利用将分离的油层分离到所述抽出位点下方的位置，任选地将比酚类化合物低的沸点的烃与比蒸馏塔的酮和/或水进料的沸点高，并从底部回收酚类化合物因此其盐含量已经降低的馏分。

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