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- In this paper, the three kinds of ester exchange methods of pig oil acidic ester exchange,alkaline ester exchange and two-steps ester exchange are compared. 本文对猪油的三种改性方法:酸性醇解法、碱性醇解法、两步醇解法进行了比较,对三种醇解法的影响因素进行了讨论。
- The method which using solid alkali as catalyst to prepare the polyethylene glycol ester of fatty acids by ester exchange reaction of fatty acid esters and polyethylene glycol is proposed. 提出采用固体碱为催化剂进行脂肪酸酯类化合物与聚乙二醇酯交换反应来制备聚乙二醇脂肪酸酯基的方法。
- 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。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO). 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。
- Adipic acid can produce nylon 66 resin and adipic acid ester. 己二酸可生产尼龙66树脂,也可生产己二酸酯用作增塑剂、合成润滑剂。
- The catalyst system used in the synthesis of Maleic acid ester,such as inorganic acid,ion exchange resin and solid acid,was introduced. 本文介绍了国内外马来酸二甲酯合成中的催化剂体系,有无机酸、离子交换树脂、固体酸等。
- In this experiment , ascorbic acid and palmitate etbylester were used as reactants,and H2SO4 as catalyst to synthesize L-ascorbic palmitate by ester exchange method . 以L-抗坏血酸和棕榈酸乙酯为原料,H2SO4为催化剂,酯交换法合成L-抗坏血酸棕榈酸酯。
- In this experiment, we use ascorbic acid and palmitate ethylester as reactant, H2SO4 as catalyst to synthesis L-ascorbic palmitate by ester exchange method. 以L-抗坏血酸和棕榈酸乙酯为原料、H2SO4为催化剂,酯交换法合成L-抗坏血酸棕榈酸酯。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO).The yield was over 98.5%and the operation simple. 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯,产率达98.;5%25以上。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO).The yield was over 98.5% and the operation simple. 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- Maltose fatty acid ester was prepared with maltose and fatty acyl chloride in the presence of catalyst. 以麦芽糖和脂肪酰氯为原料,制备麦芽糖脂肪脂酸酯。
- It is known that sucrose fatty acid ester is an internationally accepted food additive with wide application scope. 蔗糖脂肪酸酯是一种国际上公认的食品添加剂,具有广泛的应用范围。
- Antisepsis and fresh-keeping effects of polyol fatty acid ester are summarized in this paper. 本文综述了多元醇脂肪酸酯的防腐保鲜作用。
- The suitability of fatty acid ester as diesel fuel results from their molecular structure and high energy content. 脂肪酸酯作为发动机燃料的可行性来自于其分子结构和较高的能量密度。
- Quaternary ammonium salt of chitosan was synthesized starting from chitosan, triethylamine and ethyl chloroacetate by ester exchange reaction. 以三乙胺、氯乙酸乙酯和壳聚糖等为原料,采用酯交换法合成了壳聚糖季铵盐。
- This paper reviews the production technologies,the advantages of DMC production by ester exchange and market situation at home and abroad. 本文阐述了碳酸二甲酯的生产方法,酯交换法生产DMC工艺的优越性以及国内外市场状况。
- Carboxylic acid esters are important chemical raw materials. 羧酸酯是重要的化工原料。
- In this articls,the monitoring method of phthalic acid ester in air was established by gas chromatography. 本文通过气相色谱法建立了大气中邻苯二甲酸酯的监测方法。
- Takeshi I,Masahiro K,Akihiro P.Process for preparation of glycidyl methacrylate by catalytic ester exchange reaction:JP08239372[P].1996-09-17. 刘亚康;毛优平;金关泰.;丙烯酸缩水甘油酯的合成工艺研究[J]