催化剂

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

是一种能加速反应的物质。

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

糠醛树脂结焦是导致失活的主要原因。

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

首次杂多酸为采用酯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.

可想象利用一种反使体系内的任反应“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，获得了铜铁复合层柱粘土。

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

磷钨酸和磷钨酸铝为,用乳酸和正丁酸合成了乳酸正丁酯。

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

研究了该对碘代苯与丙烯酸乙酯反应的性能及循环使用性能。

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

研究了利用多种相转移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,用四乙基氢氧铵作相转移,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.

提出了固体氯物为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,无水氯锌为助,用丙醛一步合成了丙酸丙酯,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.

对铁氢酶活性中心进行模拟将有可能产生出新型的产氢。

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

研究了该对碘代苯与丙烯酸交叉偶联生成反式-肉桂酸的性能。

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

研究了硼氢钾修饰的雷尼镍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,通过相转移提高了反应收率。

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,采用直接缩合法引入相转移合成邻硝基二苯胺。

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

BTEAC(苄基三乙基氯铵)为相转移合成了异烟酸乙酯。

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

聚合物载体-钕络合物具有很高的活性和定向效应.

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,十六甲基三烷基溴铵(CTMAB)为合成了麦穗宁。

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

废雷尼镍为原料，制备出合格的硫酸镍、硝酸镍和氧镍。