摘要
研究了以Ｆｅ＿２（ＳＯ＿４·ｘＨ＿２Ｏ为固体催化剂，由对羟基苯甲酸和丁醇制备对羟基苯甲酸丁酯，讨论了催化酯化的各种影响因素。与硫酸催化相比，Ｆｅ＿２（ＳＯ＿４）＿３·ｘＨ＿２Ｏ用量少、反应时间短，产率较高而废水减少。此法同样可制备对羟基苯甲酸丙酯，但对于用沸点低的甲醇和乙醇制备相应的酯则产率较低。
Abstract Fe_2(SO_4)_3·xH_2O used as solid catalyst for the preparation of butyl P-hydroxyben-zoate with p-hydroxybenzoic acid and butanolbas been studied,Various factors that effectthe esterification have been discussed.WithFe_2(SO_4)_3·xH_2O catalyst, the results ob-tained show that,comparisonwith sulphuric acid ,the new method has the advantages of shorter reaction time,less amotunt of catalyst,higher yield and few waster. Propyl p-hydrox-ybenzoate also can be prepared in the same way. But it is not fit for methyl, ethyl esters.
出处
《精细化工》
CAS
CSCD
1994年第1期7-10,共4页
Fine Chemicals
基金
湖南省食品办公室的资助
