催化剂

A catalyst is a substance which speeds up a chemical reaction.

催化是一种能加速化学反应的物质。

Resinification of furfural on the catalyst was the main cause of deactivation.

糠醛树脂化结焦是导致催化失活的主要原因。

Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the firsttime.

首次杂多酸为催化采酯化法合成丙二醇单乙醚乙酸酯。

We imagine using an anticatalyst to "freeze out" any chemical reactions in the system.

可想象利一种反催化使体系内的任意化学反应“冻结”。

CuFe-PILC catalyst was prepared by doping technology during the preparation process of pillaring agent.

在此基础上对其进行掺杂改性，铜铁复合层柱粘土催化。

Synthesis of n-butyl lactate is catalyzed by phosphotungstic acid and aluminium phosphotungstate.

磷钨酸和磷钨酸铝为催化,酸和正丁酸合成酸正丁酯。

Its catalytic performance in Heck reaction of iodobenzene with ethyl acrylate was studied.

研究该催化对碘代苯与丙烯酸乙酯反应的催化性能及循环使性能。

The synthesis of nerolin bromelia by use of various phase transfer catalysts at different conditionsis studied.

研究利多种相转移催化在不同条件下合成橙花素。

N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.

苯胺和溴乙烷为原料,四乙基氢氧化铵作相转移催化,在常压下合成N,N二乙基苯胺。

The best reaction condition are determined when synthesizing dibutyl maleate by using sloid chloride as catalyst.

提出固体氯化物为催化合成马来酸二丁酯的最佳反应条件。

Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.

合成出的丙醇铝为催化,无水氯化锌为助催化,丙醛一步合成丙酸丙酯,收率可达92％,选择性可达93％。

Fe-only hydrogenase can catalyze the reversible reaction of protons and electrons to molecular hydrogen in nature.

对铁氢化酶活性中心进行化学模拟将有可能产生出新型的产氢催化。

The performance of this catalyst for the cross-coupling reaction of iodobenzene with acrylic acid was studied.

研究该催化对碘代苯与丙烯酸交叉偶联生成反式-肉桂酸的催化性能。

The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.

研究硼氢化钾修饰的雷尼镍催化催化松油醇加氢制备二氢松油醇的反应。

By using phase transfer catalyst, the yield of the preparation of cyclopropane carboxylic isopropyl ester was increased.

在环丙甲酸异丙酯的合成反应中,通过相转移催化提高反应收率。

Nitrodiphenylamine is synthesiized by direct condensing method,adsopting aniline and 2-nitrochlorobenzene as feeds,PEG as phase transfer catalyst.

苯胺、邻硝基氯苯为原料,采直接缩合法引入相转移催化合成邻硝基二苯胺。

The catalytic system formed from polymer-supported neodymium complexes shows high catalytic activity and stereospecificity for butadiene polymerization.

聚合物载体-钕络合物催化具有很高的催化活性和定向效应.

Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

BTEAC(苄基三乙基氯化铵)为相转移催化合成异烟酸乙酯。

The fuberidazole was prepared by reaction of O-phenylendiamine with furfural at the presence of CTMABas catalyst.

邻苯二胺和糠醛为原料,十六甲基三烷基溴化铵(CTMAB)为催化合成麦穗宁。

Qualified nickelous, sulfate, nickelous nitrate and nikel monoxide were prepared with waste raney nickel catalyst as raw material.

废雷尼镍催化为原料，制备出合格的硫酸镍、硝酸镍和氧化镍。