The catalyst is prepared by forming the methanol dehydration catalyst layer around the methanol synthesis catalyst.
催化剂是通过在甲醇合成催化剂颗粒的周围形成甲醇脱水用催化剂层而制成。
The catalyst used in the invention is comprised of a methanol synthesis catalyst and dehydration catalyst layers formed around methanol catalyst particles.
本发明所用催化剂是由甲醇合成催化剂和在甲醇催化剂颗粒周围形成的脱水催化剂层组成。
Using glycerine and acetic acid as raw materials and in the presence of catalyst, glycerin triacetate was synthesized through esterification, dehydration and underpressrue distillation.
利用酯化反应基本原理，以丙三醇和醋酸在催化剂的作用下进行酯化反应，经脱水、减压精馏得甘油三醋酸酯产品。
The research on the dehydration of cyclohexanol to prepare cyclohexene using phosphotungstic acid as catalyst is made.
对以磷钨酸为催化剂环己醇脱水制备环己烯的反应进行了研究。
Effects of reaction temperature, reaction time, quantity of catalyst on the dehydration reaction have been explored by orthogonal experiments.
利用正交实验考察了反应温度、反应时间、催化剂用量对脱水反应的影响。
The process conditions for producing high purity DME of aerosol grade by catalytic dehydration of methanol in gas phase were studied and tested by using alumina as a catalyst.
以甲醇为原料，氧化铝为催化剂，对甲醇气相催化脱水制气雾剂级高纯二甲醚的工艺条件进行了试验研究。
Synthetic of cyclohexene by dehydration of cyclohexanol on the catalyst ofp-Tolenesulfonic acid is studied.
用对甲基苯磺酸为催化剂，对环己醇脱水制备环己烯反应进行了研究。
Tungstogermanic acid as a catalyst for dehydration of alcohol to form ether or alkene is reported.
报道了钨锗酸对醇脱水成醚或成烯的催化反应。
Selection of fireproofing coating components, such as forming agent, carbonforming agent, dehydration and carbonforming catalyst and colourant, were discussed.
讨论了发泡剂、成炭剂、脱水成炭催化剂、颜填料的选用，及各组分在防火涂料中的作用；
Effects of reaction temperature, reaction time, quantity of catalyst, vacuum tightness on the dehydration reaction have been explored by orthogonal experiments.
利用正交实验考察了反应温度、反应时间、催化剂用量、真空度对脱水反应的影响。
The trend of catalyst development is set forth according to the problems existing in the ethanol dehydration.
针对乙醇脱水制乙烯催化剂存在的问题，提出当前催化剂的发展趋势。
About forty alkenes were prepared by dehydration of the corresponding alcohols in the presence of the ferric sulfate hydrate as catalyst. The yields of these alkenes were from 85% to 97%.
研究了在硫酸铁水合物催化下，不同叔醇脱水成烯反应，结果表明该催化剂对叔醇脱水成烯的反应有较好的催化效果，生成烯烃的产率为85～97％。
The effects of an improved dehydration way on structural properties and Fischer-Tropsch(F-T) synthesis performance of an iron-based catalyst were studied.
研究了一种改进的脱水方式对费托（F-T）合成铁基催化剂结构性质与催化性能的影响。
Cyclohexene was synthesized by dehydration of cyclohexanol using zirconium sulfate or potassium hydro - gen sulfate as catalyst instead of concentrated sulfuric acid.
用硫酸锆、硫酸氢钾分别代替浓硫酸，催化环己醇脱水合成了环己烯，主要考察了催化剂用量、分馏反应时间对产物收率的影响。
The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof.
本发明公开了一种乳酸丁酯脱水制备丙烯酸及其丁酯催化剂的组成及制备 方法。
The advantage of solid base catalyst and the conditions of dehydration and hydrogenation were investigated.
研究了固体碱催化剂的优点及催化加氢条件。
The advantage of solid base catalyst and the conditions of dehydration and hydrogenation were investigated.
研究了固体碱催化剂的优点及催化加氢条件。
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