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

首次以杂多为催化剂采用酯化法合成丙二醇单乙醚乙酯。

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

可想象利用一种反催化剂使体系内任意化学反应“冻结”。

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

介绍了国内外醇胺催化脱氢制备氨基究发展情况。

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

以磷钨和磷钨铝为催化剂,用乳和正丁合成了乳正丁酯。

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

以正十二醇和氢溴为料,在浓硫催化下,生产溴十二烷。

The photocatalysis of the semiconductive materials convert the photon energy to chemical energy.

半导体材料光催化效应可将光能转化为化学能。

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

糠醛树脂化结焦是导致催化剂失活主。

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

催化剂是一种能加速化学反应物质。

A method for the synthesis of hexylene glycol by catalytic hydrogenation from diacetone is presented.

介绍以双丙酮醇为料,经催化加氢合成异己二醇方法。

The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid.

采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额影响。

This is catalyzed by a transaminase enzyme in conjunction with the coenzyme pyridoxal phosphate.

催化这个反应酶是氨基转移酶，其上连接有磷吡哆醛作为辅酶。

The synthesis of feruloylated monoacylglycerol catalyzed by P-Toluene sulfonic acid was investigated.

究对甲基苯磺催化合成阿魏单甘油酯工艺。

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

以苯胺和溴乙烷为料,用四乙基氢氧化铵作相转移催化剂,在常压下合成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，获得了铜铁复合层柱粘土催化剂。

VTT also laccases intercomparsion reaction catalyzed by enzymes, non-ferrous products of indicator for leakage.

VTT也利用漆酶催化促酶反应形成有色产物，究渗漏指示剂构成。

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

究了该催化剂对碘代苯与丙烯乙酯反应催化性能及循环使用性能。

Aim To study optimial technology for autogenesis-enzyme hydrolysis of total flavonoid glycoside in scutellaria.

目究黄芩自生酶催化水解总黄酮苷工艺条件。

They are rate-limiting enzymes that degrade heme into same moles of dehydrobilirubin(biliverdin),CO and Fe.

血红素氧合酶催化血红素降解为同摩尔一氧化碳、胆绿素和铁,胆绿素在胆绿素还酶作用下,迅速生成胆红素。

The enzyme activity test results showed that aldonase could transform Nacetyl-D-ManNAc into N-acetyl-D-neuraminic acid very efficiently.

经纯化后催化活性实验结果表明,醛缩酶可将N-乙酰-D-甘露糖胺高效率地转化为N-乙酰-D-神经氨,表现出较高催化活性。

Alkylation of ambident nucleophiles different places by using phase-transfer catalytic agent were studied in this paper.

本文究了在相转移催化条件下对两可亲核试剂不同位置烷基化反应。