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公开(公告)号:US4465867A
公开(公告)日:1984-08-14
申请号:US387601
申请日:1982-06-11
IPC分类号: C07C41/01 , B01J27/00 , B01J27/08 , C07B61/00 , C07C41/00 , C07C41/16 , C07C43/23 , C07C67/00
摘要: A process for preparing o-methallyloxyphenol by reacting catechol with methallyl chloride in the presence of at least one of KI and NaI serving as a catalyst with use of a base, and an organic solvent or a mixture of an organic solvent and water, the process being characterized in that methallyl chloride is reacted with the catalyst after the reaction to recover the catalyst as converted to methallyl iodide and reuse the catalyst.
摘要翻译: 在使用碱,有机溶剂或有机溶剂与水的混合物的KI和NaI中的至少一种作为催化剂存在下,使邻苯二酚与甲代烯丙基氯反应制备邻甲基烯丙氧基苯酚的方法, 其特征在于甲基烯丙基氯在反应后与催化剂反应,以便将其转化成甲代烯丙基碘并回收催化剂。
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公开(公告)号:US4036936A
公开(公告)日:1977-07-19
申请号:US604956
申请日:1975-08-15
申请人: Hideo Yamaguchi , Hidetoshi Kume , Osamu Shibuta
发明人: Hideo Yamaguchi , Hidetoshi Kume , Osamu Shibuta
CPC分类号: C01B21/16
摘要: Hydrazine hydrate is prepared by charging an aqueous or ketone solution of ketazine or hydrazone into a ketone recovering means, supplying the resultant solution to at least two hydrolysis reactors one after another, supplying the resultant hydrolyzed solution to an upper portion of a means for recovering hydrazine hydrate, and thereafter recovering hydrazine hydrate as an end product.
摘要翻译: 通过将酮或腙的水溶液或酮溶液加入到酮回收装置中,将所得溶液依次供给至少两个水解反应器,将所得水解溶液供应到回收肼的装置的上部, 水合物,然后回收作为最终产物的水合肼。
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