研究了水的用量,醚化温度,溶剂的量对CMS的粘度和取代度的影响。
此外,对这几种催化剂的醚化活性、选择性进行了评价。
本文研究了南京炼油厂延迟焦化汽油作为醚化原料的一种新的精制工艺。
结果:醚化时用丙酮替代DMF作溶剂,反应副产物减少;
气体加工过程名称烷基化碳四烷基化烷基化油醚化聚合异构化英文名称
金属锡和三甲基氯硅烷存在下芳香醛、酮与醇的还原-偶联-醚化反应
邻苯二酚与乙醇单醚化反应用固体酸催化剂表面上的积炭行为
1·Finally, the developing trend of etherification catalysts is emphasized.
最后指出了醚化催化剂的发展趋势。
2·Study the dosage of the water temperature, etherification, solvent quantity of CMS viscosity and substitution degree.
研究了水的用量,醚化温度,溶剂的量对CMS的粘度和取代度的影响。
3·Hydroxypropyl starch and oxidized starch was prepared by etherification or oxidation with green soybean starch, and the optimum production conditions was found. The yield was over 90%.
用绿豆淀粉通过醚化或氧化制成羟丙基淀粉和氧化淀粉,找出最佳工艺条件,收率可达90 %以上。
4·The etherification activity of the deactivated E-01 catalyst can be completely recovered by coke-burning regeneration.
通过烧焦再生,失活e - 01催化剂的醚化活性可以完全恢复。
5·It was shown that the reaction mechanism is variable under different experiment conditions, as a whole, the reaction is a competing process between esterification and etherification one another.
结果表明:不同情况下,其反应机理是不同的,总体而言,是一个酯化与醚化相互竞争的过程。