The workers’ demand for better conditions was a catalyst for social change.

工人们要求改善工作条件促进了社会变革。

It acts as a catalyst in the process of fermentation.

它在发酵过程中起触媒的作用。

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

催剂是一种能加速学应的物质。

All of these show that the DHT-1 catalyst can be well matched with the hydrodewaxing catalysts.

以上果表明，DHT-1能与异构降凝剂较好地匹配使用。

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

糠醛树焦是导致催剂失活的主要原因。

The research on the amino acid by dehydrogenation alkanolamine(s) in catalyst was recommended.

介绍了国内外醇胺催脱氢制备氨基酸的研究发展况。

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

首次以杂多酸为催剂采用酯法丙二醇单乙醚乙酸酯。

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应中,通过相转移催剂提高了应收率。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为原料,在浓硫酸存在下,与正辛醇进行应1-溴辛烷。

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

以苯胺和溴乙烷为原料,用四乙基氢氧铵作相转移催剂,在常压下N,N二乙基苯胺。

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，获得了铜铁复层柱粘土催剂。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为原料,在浓硫酸的催下,生产溴十二烷。

Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst.

以醋酸和乙二醇单乙醚为原料,活性白土负载磷钨酸作为催剂,了乙二醇单乙醚醋酸酯。

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催剂在不同条件下橙花素。

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

研究了该催剂对碘代苯与丙烯酸交叉偶联生式-肉桂酸的催性能。

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

提出了以固体氯物为催剂马来酸二丁酯的最佳应条件。

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

以邻苯二胺和糠醛为原料,以十六甲基三烷基溴铵(CTMAB)为催剂了麦穗宁。

To optimize the process of prepartion isorotenone from rotenone by using Lewis acid AlCl3 as catalyst.

为了优鱼藤酮异构制备异鱼藤酮的工艺。

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

以苯胺、邻硝基氯苯为原料,采用直接缩法引入相转移催剂邻硝基二苯胺。

Activated carbon as the sorbent and catalyst support was capsulated with ethyl cellulose by phase separation methods.

摘要对兼具吸附和催剂载体功能的多孔构活性炭，以乙基纤维素为材料用相分离进行包覆。