均相催化反应
- 网络homogeneous catalytic reaction;homogeneous catalysis;heterogeneous catalysis;homogeneous catalysis reaction
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综合评述了超临界流体技术在酶催化反应、多相催化反应、金属有机反应、均相催化反应、高分子聚合反应、超临界水化学反应中的应用。
This paper describes the application of supercritical fluid technology in enzymatic reaction , heterogeneous catalytic reaction , organometallic reaction , homogeneous catalytic reaction , macromolecular polymerization , supercritical water reaction .
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在精细化工与催化反应的均相催化反应中,离子液体以下几个缺点:离子液体的用量大;在催化体系中催化剂分离较困难。
In the homogeneous catalytic reaction between fine chemicals and catalytic reactions , ionic liquid has below disadvantages : large dosage of ionic liquid ; difficulty in separating the catalyst from catalytic system .
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PbO均相催化反应精馏合成碳酸二苯酯的研究
Study on the synthesis of diphenyl carbonate in homogeneous catalysis by PbO
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催化转化器中CO化学反应属于气固非均相催化反应,在载体蜂窝孔内CO向催化剂固体表面的质量传输过程对CO的转化率有着重要影响。
Chemical reaction of CO is a gas solid catalytic reaction in catalytic converter . The mass transfer course of CO in honeycomb holes has very important effects on CO conversion ratio .
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Polymath软件在化学工程中非均相催化反应的模拟研究
The simulated study of Polymath software for gas-solid phase heterogeneous catalytic reaction in chemical engineering
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采用醋酸酐作为酯化剂,吡啶作为活化催化剂,液相均相催化反应技术制备尿素缓释膜材料高取代度(DS)醋酸酯淀粉。
Using acetic anhydride as esterifying agent , pyridine as activation catalyst . Applying liquid homogeneous catalyzing reaction skill for preparation of carbamide controlled release film material high substituent ( DS ) acetic starch ester .
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虽然均相催化反应可以高产率高ee(对映体过量)值的进行,但要经过多步纯化过程,而且昂贵的催化剂也很难回收再循环利用。
Although the asymmetric catalytic reactions can be efficiently carried out in homogeneous catalytic systems with high yields and ee value , it has also some disadvantages , such as complicated purification procedures and using the expensive catalysts that are quite difficult to recover and recycle .
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吡啶基含氮三齿配体的合成及其在均相催化反应中的应用
Synthesis of Pyridine-Based Tridentate N-Ligands and the Application in Homogeneous Catalysis
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离子液体在非均相催化反应中的应用研究进展
Advances in application of ionic liquids in heterogeneous catalytic reactions
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超临界流体在非均相催化反应中的应用
Application of Supercritical Fluids in Heterogeneous Catalytic Reactions
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均相催化反应在任一给定形状微电极上的稳态电化学行为
The Steady State Electrochemical Behavior of Homogeneous Catalytic Reactions at Microelectrodes of Any Given Geometry
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为了克服均相催化反应的缺点,近年来,高分子负载型催化剂得到了迅猛发展。
In order to overcome these drawbacks , the polymer-supported catalysts have been rapid developed recently .
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和所有均相催化反应一样,采用均相Rh-TPP系催化剂进行丙烯氢甲酰化,存在催化剂分离问题。
As for all homogeneously catalyzed reactions the problem of separating the homogeneously dissolved catalyst is immanently disadvantageous .
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控制卷积量变化的电化学方法研究&伴有后续均相催化反应的电极过程(Ⅰ)
Study on Electrochemical Methods of Controlled Convolution & A simple electron transfer reaction followed by a homogeneous catalytic reaction (ⅰ)
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但是,这些均相催化反应具有腐蚀设备,产生大量废水和与产物分离困难等问题。
However , these homogeneous catalysts pose considerable problems such as equipment corrosion , disposal problems due to large amount of acidic effluents , and difficulties in product isolation .
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将杂多酸负载化后,可以提高催化活性的稳定性,易于回收,更利于非均相催化反应的进行。
The heteropoly acid , being loaded , can improve the catalytic activity of stability , be easy to recycle , and be more conducive to non-homogeneous catalytic reaction .
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以双酚A、溴水和过氧化氢为原料,采用非均相催化反应技术合成四溴双酚A的新工艺。
The new preparation process of tetrabromobisphenol - A with bisphenol - A 、 bromine and hydrogen peroxide as raw materials by a heterogeneous catalyst reaction has been introduced in this paper .
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嵌入表面分子方法是描述非均相催化反应中所定义的活性中心的新方法。该法是将活性中心看作一个表面分子。
The embedded surface molecule ( ESM ) method is a new systematical approach to describe the active site defined for a heterogeneous catalytic reaction , which considers the active site as a " surface molecule " .
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介绍了瞬变响应技术的基本原理及其在非均相催化反应中的应用,尤其分析了该技术在甲烷部分氧化反应中的应用,并指出了瞬变响应技术的研究现状和应用前景。
The basic principle of transient response technique and its application in heterogeneous catalytic reaction are described . The application in partial oxidation of methane is particularly analyzed , and the main problem and the application prospect are also pointed out .
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过渡金属化合物均相催化Diels-Alder反应的立体选择性
Stereoselectivity in Homogeneous Transition-Metal-Catalyzed Diels-Alder Reactions
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过氧化氢的均相催化分解反应
Decomposition Reaction of Hydrogen Peroxide under Homogeneous Catalysis
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该文研究了以纳米晶二氧化钛为催化剂的马来酸酐非均相催化聚合反应。
In this paper the heterogeneous catalytic polymerization of MA by nanocrystalline titania is studied .
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非均相表面催化反应,由于其重要的科学意义与应用价值,一直是科学研究的前沿。
Heterogeneous surface catalytic reactions have always been the frontier of science due to its applicative importance and scientific implications .
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对均相催化氧化反应进行正交试验和单因数试验,确定其氧化降解特定废水的最优化条件。
Orthogonal and single factor experiments in homogeneous phase are carried out in order to determine the optimum reaction conditions for oxidation and degradation of phenol in specific wastewater .
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目前的均相铜催化反应体系、固载型铜催化体系以及铜基纳米颗粒催化体系存在反应成本高或催化剂回收困难等问题。
However , the present homogeneous copper catalytic system , immobilized copper catalytic system and nano-copper catalytic system are problematic in terms of high cost or difficulty in recycling of catalyst .
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pH值是影响非均相催化臭氧化反应过程的重要因素,以镨负载氧化铝(Pr/Al2O3)为催化剂,重点研究了溶液初始pH值对苯酚催化臭氧化过程的影响。
PH is the key factor to affect heterogeneous catalytic ozonation reactions . To study the effects of pH on catalytic ozonation , The Pr / Al2O3 powder was used as catalyst on catalyzed ozonation for degradation of phenol in different pH solutions .
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高分子负载钯金属的非均相催化C&C偶联反应
Polymer-Supported Palladium Catalysts for Heterogeneous C-C Coupling Reactions
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α,β-不饱和醛的均相催化氢硅化反应
Hydrosilation of α, β - Unsaturated Aldehydes
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环己烯均相催化加氢反应机理的研究
Study of the reaction mechanism of cyclohexene hydrogenation catalyzed by rhcl ( pph_3 ) _3
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杂多酸作为均相催化剂催化酯类反应具有很高的活性和选择性,但存在反应产物和催化剂分离问题。
Main problems with application of heteropoly compounds as homogeneous catalyst are separation of the catalyst and reaction products .