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- Keywords silicotungstic heteropolyacid;BHb;UV-Vis spectroscopy;fluorescence spectroscopy;thermodynamic parameters; 硅钨杂多酸;牛血红蛋白;紫外光谱;荧光光谱;热力学参数;
- silicotungstic heteropolyacid 硅钨杂多酸
- A new solid acid based on heteropolyacid has been proved to be a useful catalyst for the synthesis of dibutyl maleate. 新催化剂在顺丁烯二酸二丁酯的合成反应中显示很好的活性和温和的反应条件。
- This paper describes the direct synthesis of octyl\|glucoside with supported heteropolyacid catalysts. 本文以负载型杂多酸为催化剂,以葡萄糖和正辛醇为原料,直接法合成辛基多苷。
- Fructone - B was synthesized sing silicotungstic acid catalyst absorbed on activated carbon from ethyl ace-toacetate and 1,2 - propylene glycol with the recovery of 95% . 以乙酰乙酸乙酯和1,2-丙二醇为原料,用活性碳固载硅钨酸作催化剂合成了苹果酯-B,产率达95%25。
- Abstract: Synthetic method of butyl butyrate was investigated using silicotungstic acid ca talyst absorbed on activated carbon. 文摘:用活性炭固载硅钨酸催化剂催化合成了丁酸丁酯。
- The development of heteropolyacid catalysts and its preparation, constitution, properties and application field were described briefly. 叙述了国内外杂多酸催化剂的研究情况,简要地介绍了杂多酸催化剂的制备、结构和催化性能及其应用领域。
- Properties of catalysts such as fluorinated silica-alumina,molecular sieve,heteropolyacid and ionic liquid were evaluated. 在反应技术方面,UOP工艺比氯化法和脱氯化氢法更具竞争力,介绍了UOP工艺的各种改进方案。
- The process of m-IPT synthesis with toluene and propylene as raw mterial under the catalytic action by supported heteropolyacid was studied. 研究了负载型杂多酸的催化作用下,以甲苯和丙烯为原料进行烷基化反应合成间甲基异丙苯的工艺过程。
- The synthesis of acetylsalicylic acid from salicylic acid and acetic anhydride, using heteropoly acid of silicotungstic acid supported on activated carbon as catalyst was studied. 以水杨酸和乙酸酐为原料,负载型杂多酸为催化剂合成了乙酰水杨酸。
- In this paper it have bee introduced that the research achievement on synthesis of esters by heteropolyacid catalyzed carboxylic acid and alcohols in recent years. 介绍了近年来杂多酸及其盐作为酸催化剂在催化酸与醇反应合成酯的研究成果。
- P_2Mo_(18)/PANI(S_1) and P_2Mo_(17)V/PANI(S_2) electron polymer materials were prepared by using Dawson structure heteropolyacid (D-HPA) as proton acid, oxidizer and depart. 以Dawson结构杂多酸(D HPA)为氧化剂、质子酸和掺杂剂;制备了高纯度的P2Mo18/PANI(S1)和P2Mo17V/PANI(S2)电子聚合物材料.
- Adding heteropolyacid to extracted acetic acid can separated the basic nitrogen compounds from acetic acid.So acetic acid can be recycled as extractant. 在抽提后的乙酸中加入杂多酸可使乙酸中的碱氮分离出来,乙酸可以循环使用。
- The experimental results showed that this supported heteropolyacid catalyst has high catalytic activity and stability, it can be used repeatedly for 5 batches. 结果表明,该催化剂具有较高的催化活性和稳定性,可重复使用。
- The catalyst of MS/HPA/TiO_2 by heteropolyacid and titanic oxide supported on molecular sieve was prepared and using it as catalyst on degradation of fuschin red was also studied,then the optimum condition of degradation of fuschin red were obtained. 报道了分子筛负载杂多酸和二氧化钛催化剂MS/HPA/TiO2的制备及其对品红溶液降解的效果,系统研究了催化品红溶液降解的优化条件。
- The results indicated that Wells-Dawson Heteropolyacid H_6P_2Mo_(17)VO_(62) is the best catalyst for this reaction with nearly complete conversion of epoxide and excess 90% of selectivity to 1,3-dioxolane. 研究表明:H6P2Mo17VO62的催化效果最好;反应条件温和;环氧化物的转化率接近100%25;1;3 二?f戊烷的选择性在90%25以上.
- This paper,Introduces the application of heteropolyacid catalyst of tungs ten and Molybdenum in esterification, And the structure and properties of the heteropolyacid are discussed. 本文介绍钨系杂多酸在酯化反应中的应用，并对与催化相关的钨系杂多酸的结构与性质进行了描述。
- The epoxidation reaction of maleic acid by heteropolyacid catalyst is studied.The influences of various factors on the reaction are discussed and the optimum reaction conditions are determined. 本文以杂多酸为催化剂对顺丁烯二酸的环氧化反应进行了研究，讨论了各因素对反应的影响，并确定了最佳反应条件。
- The new development of the isobutene/butene alkylation catalysts has been introduced,including solid superacid catalyst,molecular sieve catalyst and supported heteropolyacid catalyst. 阐述了异丁烷/丁烯烷基化催化剂研究的新进展,包括固体超强酸催化剂、分子筛催化剂和负载型杂多酸催化剂。
