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1)  base catalyst
碱催化剂
1.
On the basis of the selection of base catalyst,the propanedio methyl ether with narrow distributed and low molecular weight is synthesized and the technological conditions are discussed.
研究不同碱催化剂上合成丙二醇甲醚的反应及对分子量分布的影响。
2)  alkaline catalyst
碱性催化剂
1.
The title propylene glycol monophenyl ether was synthesized with phenol and propylene oxide in the presence of alkaline catalysts.
以苯酚、环氧丙烷为原料,在碱性催化剂作用下制备丙二醇苯醚。
2.
The reaction products between the common Tea Polyphenols (TP) and propiomic anhydride or palmitoyl chloride or oleinoyl chloride in ethyl acetate solution (with alkaline catalyst) were evaluated by the antioxidative activity and solubility in refined edible oil, while the Tea Polyphenol Palmitate (TPP) showed the best result.
将含量约87%的普通茶多酚同丙酸酐、棕榈酸酰氯、油酸酰氯溶于乙酸乙酯中,在碱性催化剂催化下进行非水相酯化反应,得到的产品经油溶性、抗氧化性等指标比较知以茶多酚棕榈酸酯效果较佳。
3)  Acid-bast-catalyst
酸-碱催化剂
4)  acid-base catalyst
酸碱催化剂
5)  solid base catalysts
固体碱催化剂
1.
Preparation of supported Cs_2O solid base catalysts and performance of catalyzing transesterification reaction
负载型Cs_2O固体碱催化剂的制备及催化酯交换反应性能
2.
Several solid base catalysts for biodiesel production were reviewed,and the characteristic was analyzed.
本文综述了用于催化油脂酯交换反应制备生物柴油的固体碱催化剂的研究进展,分析了各种固体碱催化剂的特性,并对用于制备生物柴油的固体碱催化剂研究方向进行展望。
6)  solid alkali catalyst
固体碱催化剂
1.
Soak method was adopted to make the KF/CaO solid alkali catalyst and applied in the ester exchange reaction of the animal grease-methyl alcohol.
采用浸渍法制备KF/CaO固体碱催化剂,并应用于动物废油脂-甲醇的酯交换反应中,考察了催化剂的制备及酯交换反应的条件。
2.
Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO).
采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯 ,产率达 98。
补充资料:碱催化剂
分子式:
CAS号:

性质:本身具有碱性(广义),并能起碱催化作用的物质。碱催化是指催化剂与反应物分子之间通过接受质子或给出电子对作用,形成活泼的负碳离子中间化合物(活化的主要方式),继而分解为产物的催化过程。碱金属、碱土金属和部分稀土元素的氧化物或盐是碱催化剂。分子筛主要是作酸催化剂,但有一定碱性,经离子交换后也可主要作碱催化剂。醇或醛的缩合,歧化,脱水,脱氢反应等都可用碱催化剂催化。

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