The invention relates to a preparation method of plant sterol ester, which comprises heating fatty acid and phytosterol to 120-180DEG C, dissolving, adding catalyst, controlling temperature at 120-180DEG C to process esterification for 5-12h, separating and purifying reaction solution to obtain plant sterol ester, wherein the mass ratio of the fatty acid and the phytosterol is 1-5;
基于6个网页-相关网页
Adding Catalyst And Oxidant 加入催化剂氧化剂
Finally Adding Catalyst Promotor 最后加助催化剂
adding hydrogen catalyst 加氢催化剂
The reaction conditions such as dosages of catalyst, 1, 4 dioxane and water, solvent type, reaction temperature and time, adding method were also studied.
同时还研究了催化剂用量、1,4二氧六环的用量、溶剂种类、反应温度、反应时间、水量及加水方式等对该反应的影响。
Catalytic activated sludge process is the method of adding mineral catalyst in normal activated sludge process.
催化活性污泥法是在活性污泥系统中添加矿物催化剂。
This method involves using the glacial acetic acid as a catalyst, adding the litharge in aqueous medium and adding a quantity of oil of vitriol to yield lead sulfate.
该法来用了冰乙酸作催化剂，在水介质中加入氧化铅，再滴加一定量的浓硫酸来合成硫酸铅。
应用推荐