研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids, such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid.
杂环卡宾金属络合物对许多反应有催化作用,它们是一类有潜在应用价值的催化剂。
N-heterocyclic carbene metal complexes have catalytic activities for many organic reactions, and they are a type of catalyst with potential value.
这个理论认为:催化剂的催化作用是电子迁移形式。
Upon this theory the catalytic effect of catalyst is attributed to the electron transfer.
这个理论认为 :催化剂的催化作用是电子迁移形式。
Upon this theory the catalytic effect of catalyst is attributed to the electron transfer.
在非临氢降凝催化剂的催化作用下,随着催化改质温度的升高,汽油馏分产率逐渐提高,而重油产率、催化剂积碳率逐步减少。
By the catalysis of FC catalyst, with the temperature of catalytic transformation rising, the yield of gasoline would rise, however, heavy oils and carbon residue were on the contrary.
纤维素吸附区促进酶与底物的结合,有利于催化区对不溶性底物的作用,但对可溶性底物的催化作用无影响。
Cellulose binding domains improve the binding and facilitate the activity of catalytic domains on the insoluble substrate, but not on soluble substrate.
综述了煤气化反应催化剂类型,介绍厂金属化合物的催化作用。
This paper reviews the types of catalyzer of coal gasification, and introduces the catalysis of metal compounds.
综述了磺酸、无机盐、固体超强酸、杂多酸、稀土化合物等催化体系对合成柠檬酸三丁酯的催化作用及研究进展。
This article aims at summarizing the development of research on synthesis of tributyl citrate and the catalysis of sulfonic acid inorganic salt solid superacid heteropoly acid rare earth compound.
同时,也涉及这类催化剂的挥发性和对AP及推进剂热分解的催化作用。
The research of the volatilization of the catalysts and the catalytic action of the catalysts on the thermal decomposition of AP or solid propellants are also involved.
在稀醋酸介质中,痕量邻菲咯啉对高碘酸钾氧化玫瑰桃红R褪色反应有明显的催化作用,据此建立了测定邻菲咯啉的催化动力学光度法。
The method is based on the catalysis of phenanthroline to the discoloring reaction of bordeaux R oxidized by potassium periodate in the dilute acetic acid solution.
概述了胶束催化作用的基本原理以及胶束催化在有机合成中的多方面应用。
This paper summarized the principle of micellar catalysis, reviewed its various applications in organic synthesis, and described the effects of different factors on the micellar catalysis.
研究了它们在烯烃双键异构化反应中的催化作用,优化了这两种催化剂在1—己烯双键异构化反应中的反应条件。
Their catalytic activity for 1-hexene double bound isomerization was investigated and their catalytic reaction conditions were optimized for double bound isomerization.
本文研究了几种催化剂对合成邻苯二甲酸酐型不饱和聚酯的催化作用。
The catalysis effect of some catalysts on the synthesis of unsaturated polyester of phthalic anhydride type was studied.
依据次磷酸钠在体系中的催化作用开发和研究了无磷催化剂氨三乙酸钠。
Based on catalyzing hypothesis of sodium hypophosphite, we explored and studied a non-phosphorus catalyst---sodium nitrilotriacetate.
轻烃和天然气是由富含干酪根矿物基质上过渡金属的催化作用形成,而不是干酪根和重质烃的热催化作用所致。
Generation of light hydrocarbons and natural gas are formed through catalysis of transition metals, such as Ni, V, Ti C etc.
最后通过七次催化剂回收使用实验表明催化作用没有明显改变。
Seven recovery and recycle experiments were carried out. It was shown that the catalytic activities of the polyoxyethylenes were basically not changed.
在CO2气化反应过程中,由于产生的含硫气体比较少,催化剂中铁元素对残渣半焦的CO2气化起到了一定的催化作用。
During the CO2 gasification reaction process, due to less sulfur content gas generated, the iron element in the catalyst would have certain catalyst effect to CO2 gasification of the semi-coke.
综述了金属分子树在合成中的催化作用,并同常规催化剂作了比较,最后展望了此类大分子的应用前景。
The catalytic application of metallodendrimer in synthesis is reviewed and also compared with conventional catalysts. The applied perspectives of metallodendrimer in catalysis are previewed.
研究了不同碱对柠檬肟的催化脱水效果及不同PTC的催化作用效果,并用正交实验设计法确定了使用KOH- TBAB催化脱水法合成柠檬腈的最佳反应条件。
The catalytic dehydration of lemonile with various alkalis and PTC was studied. The optimal conditions dehydration to lemonile for KOH TBAB catalytic by orthogonal design were determined.
提出了一种新的微观催化机理:碱金属盐的催化作用在于催化剂能改变CC化学键的作用程度,从而加速反应的进行。
A new catalytic mechanism is proposed: the catalytic effect of a catalyst is attributed to the change of CC chemical bond by catalyst.
结果表明,采用单酯钠盐作催化剂具有很好的相转移催化作用,磺化废水也具有一定的相转移催化作用。
The research results indicated that the sodium salt of monoester used as a catalyst was of a good catalytic function and so is the waste water. Hence, a new process…
甲烷催化燃烧的目的是通过催化作用降低燃料的起燃温度,加深甲烷氧化程度,从而提高燃料利用率。
Methane combustion aims to reduce the fuel's initiate burning temperature by catalysis, then to intensify the methane oxidation, and finally to improve the fuel's utilization ratio.
燃速压力指数的变化情况说明了催化剂对燃烧所起催化作用的大小。
Variety of the burning rate pressure exponent will give expression to the additive's catalysis to the propellant's combustion.
选择乙二醇锑以及至少一种锰、锌、钴、铅等金属醋酸盐共同组成高效聚酯催化剂体系,研究其对缩聚反应的催化作用。
A high-activity catalyst system for polyester consisted of Sb 2(EG) 3 and at least one kind of metal acetate catalyst of manganese, zinc, cobalt or lead.
研究了强酸性阳离子交换树脂对缩醛合成反应的催化作用,系统地探讨了各反应因素对反应的影响,研究发现,D- 72强酸性阳离子交换树脂具有较高的催化活性,并能重复使用。
This paper investigates the catalysis of D-72 strong acid cation exchange resin on the synthesis of acetals, and systematically discusses the influence of reaction factors on the catalysis reaction.
由于金属铜对次磷酸钠的氧化没有催化作用,需要加入镍离子作为催化剂。
The electroless copper plating system with sodium hypophosphite as the reducing agent has been received people's attention.
由于金属铜对次磷酸钠的氧化没有催化作用,需要加入镍离子作为催化剂。
The electroless copper plating system with sodium hypophosphite as the reducing agent has been received people's attention.
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