CONCLUSION: Basic catalysis is superior to Lewis acid catalysis. Using metal oxide is suitable for industrialization.
结论:碱性催化剂优于路易斯酸性催化剂,金属氧化物催化适合于工业化生产。
Reaction character, reaction mechanism of solid acid catalysis and requirements for solid acid catalysts used are discussed.
探讨了该反应的特点、固体酸催化反应机理及用于此反应的固体酸催化剂应满足的条件。
Experiments showed organic acid catalysis could increase TI-PS fraction content of modified pitches and the same result could be get by changing component and structure of pitches.
实验表明,有机酸催化可提高沥青ti - PS组份的含量,而改变原料沥青的组成与结构也可得到同样效果。
Polyphenol substances in beer had the properties of oxidative polymerization, acid catalysis polymerization, complexing of polyphenol and proteins, polyphenol dissolving and dimer crack etc.
啤酒中多酚物质具有氧化聚合、酸催化聚合、多酚与蛋白质络合、多酚溶出与二聚体裂解等性质。
Furthermore, samples, as catalysis, were used to degrade simulation dye effluents, such as solutions of Acid Red g, Direct Bordeaux, Direct Red and Methylene Blue.
同时以酸性红g、直接枣红和直接大红(直接染料)及亚甲基蓝为对象模拟染料废水进行催化降解实验。
In this paper, the optimized technological requirement of the synthesis of acrylate under the catalysis of heteropoly acid was gotten and polymerization retarder for acrylate.
本文研究了杂多酸催化合成丙烯酸酯的工艺条件及其对丙烯酸酯的阻聚作用。
The effects on acid-catalysis reactions and some unsolved problems are mentioned.
最后对酸催化反应的影响因素以及仍存在的问题也稍加叙述。
Mandelic acid was synthesized by means of ultrasonic phase transfer catalysis(PTC) method.
采用超声波相转移催化技术合成了扁桃酸。
Then-octyl gallate was prepared by esterification of alcohol and gallic acid in catalysis system of dodecyl benzene sulfonic acid.
以十二烷基苯磺酸为催化剂,酸醇直接酯化合成没食子酸正辛酯。
Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability.
铌酸和含铌化合物独特酸性和热稳定性,广泛的应用催化领域中。
Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.
研究了D,L -丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
We effectively improve the MMT thermal stability of solid acid catalyst and the shape-selective catalysis by transforming the two-dimensional layered structure to the three-dimensional pore structure.
有效地提高了蒙脱土固体酸催化剂的热稳定性;通过从二维层状结构到三维孔道结构转变,切实提高了材料自身择形催化的特性。
The tri-n-butyl citrate was synthesized by esterification of citric acid with butyl alcohol in the catalysis of sodium bisulfate.
在一水硫酸氢钠催化下由柠檬酸和正丁醇合成了柠檬酸正丁酯。
The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.
考察了大孔强酸性树脂对1,4 丁二醇脱水制四氢呋喃的催化作用。
The bamboo residues could be liquefied to be biopolyol in the mixed solvent of polyether alcohol and crude glycerol under the catalysis of concentrated sulfuric acid.
在硫酸的催化作用下,竹废料在由聚醚多元醇和粗甘油组成的混合液化剂中可被液化成多羟基化合物。
The composition of the catalysis system containing concentrated sulfuric acid and its regeneration method are also investigated.
对浓硫酸催化体系的组成、再生方法也进行了探索。
The dioctyl glutaricate was prepared by esterification of octyl alcohol and glutaric acid separated from dicarboxylic acid in catalysis of sulfuric acid.
以辛醇和从二羧酸中分离出的戊二酸为原料,硫酸为催化剂,酯化合成了戊二酸二辛酯。
The use foreground of these compounds will be extensive in the field of molecular discernment, nucleic acid probe, anti-tumour medicine, molecular catalysis and self-assemble etc.
该类配合物在分子识别、核酸探针、抗肿瘤药物、分子催化及自组装等领域都有广泛的应用前景。
The progress of isomerization technology of conjugated linoleic acid (CLA) was introduced. The methods of alkaline catalysis, metal catalysis and bio-enzymes isomerization were discussed respectively.
介绍共轭亚油酸(CLA)异构化技术的研究进展,评述异构CLA的碱性催化法、金属催化法和生物酶异构法。
Zanamivir was synthesized with salic acid as starting material by enzymatic catalysis method.
以自制唾液酸为起始原料,对扎那米韦的合成工艺进行研究。
The preparation process of epoxy soybean oil under the catalysis of sulfuric acid and 732 type cation exchange resin is introduced, and the optimum technological conditions have been obtained.
介绍了在硫酸、732阳离子交换树脂的催化作用下,制备环氧大豆油的工艺,得出了最佳工艺条件。
Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
以对甲氧基苯甲醛、三氯甲烷为原料,相转移催化羰基加成法合成了对甲氧基苯乙醇酸。
Esterification is a common organic reaction, usually with the catalysis of acid carboxylic acid and alcohol produce ester.
酯化反应是常见的有机反应,通常是在酸催化作用下由羧酸与醇反应生成酯。
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.
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。
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.
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。
In this article Phenyl-acrylic acid ester is synthesized under the catalysis of cationic resin using Phenyl-acrylic acid as a raw material which is produced as a part of the whole process.
本文以自制苯基丙烯酸为原料,用阳离子树脂催化合成苯基丙烯酸酯。
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.
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。
Then (iso) butyl gallate was prepared by esterification of alcohol and gallic acid in catalysis ofp methyl benzene sulfonic acid and the reaction temperature was risen in a gradient style.
对甲苯磺酸为催化剂,用梯度升温法,酸、醇直接酯化合成没食子酸正(异)丁酯。
Then (iso) butyl gallate was prepared by esterification of alcohol and gallic acid in catalysis ofp methyl benzene sulfonic acid and the reaction temperature was risen in a gradient style.
对甲苯磺酸为催化剂,用梯度升温法,酸、醇直接酯化合成没食子酸正(异)丁酯。
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