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- 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。
- In comparison to the broad study and application of solid acidic catalysts in chemical technology, much less attention has been paid to solid base catalysts. 虽然与大量研究和使用的固体酸性催化剂相比,有关固体碱性催化剂的研究和应用要少得多。
- using super-active and super-selective catalysts, such as asymmetrical catalyst,molecular sieve solid acid and base catalysts,biological catalyses; 采用水、超临界流体、离子液体、氟碳相等无毒无害溶剂和固态反应;
- using super-active and super-selective catalysts, such as asymmetrical catalyst, molecular sieve solid acid and base catalysts, biological catalyses; 采用不对称催化别、分子筛固体酸碱催化剂和生物催化剂等高选择性、高活性的催化剂;
- The modified titanium base solid acid used as catalyst for the synthesis of tributyl citrate from citric acid and butyl alcohol was investigated in this paper. 以改性钛基固体酸为催化剂催化合成柠檬酸三丁酯,确定了酯化优化条件。
- Etherification of propylene oxide with methanol using MAF solid base catalyst had been investigated. 研究了甲醇与环氧丙烷在固体碱催化剂MAF存在下非均相合成丙二醇甲醚的过程。
- Solid acid catalyst can be substituted for sulphuric acid as esterification catalyst. 固体酸催化剂是能够代替硫酸作为酯化的催化剂。
- It point out th solid acid catalyst that we have atudied are all good catalyst for synthesis of diamyl meleat. 指出固体酸催化剂是催化合成马来酸二戊酯的良好催化剂。
- The chief type of acid base unbalance is respiratory acidosis. 酸碱失衡类型中 ,呼吸性酸中毒占首位 ;
- Terpineol was conveniently prepared by a new type solid acid catalyst without pollution. 研究了新型固体酸催化剂催化合成松油醇的新工艺。
- The obtained solid base catalyst, which possessed huge specific surface area and good antiacid and waterproof performance, had excellent application prospect. 所制固体碱生物柴油催化剂比表面积大,抗酸、抗水性能好,应用前景良好。
- The solid acid catalyst attracted much attention as the transesterification catalyst in recent research. 固体酸性催化剂作为酯交换的催化剂是当前的研究热点。
- The variety and characteristics of solid base catalyst were summarized.And the application of solid base catalyst in the transesterification of lipid was discussed. 综述了固体碱催化剂的种类及其特点,讨论了固体碱催化剂在油脂酯交换反应中的应用。
- Potassium has an important role in the regulation of acid base balance. 钾在人体的酸碱平衡中起到了重要的作用。
- In this paper, we bring forward a proposition that we can obtained new solid base catalyst through calcined hydrotalcite which contain Ca、Cu、Co in layer and interstitial anions. 本文根据层板组成的可调变性和整体结构与组成均匀性的结构优势,提出合成层板上具有碱性(Ca、Cu、Co)及层间具有不同阴离子的层状前体,并通过焙烧此种前体最终得到具有不同碱性特征的新型固体碱催化材料的构想。
- A novel solid acid catalyst,H3PW12O40(HPW) supported on HZSM-5, has been prepared for use in the esterification of acrylic acid(AA) with n-butanol. 制备了负载型疏水性固体酸催化剂H3PW12O40/HZSM-5,并将该疏水性固体酸催化剂用于丙烯酸(简称AA)与正丁醇的酯化反应中。
- Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support. 以无水三氯化铝为原料,并以处理过的膨润土为载体,采用液固溶剂法制备固体酸催化剂。
- Carbon nanofiber (CNF) is a novel carbon based catalyst support. 纳米碳纤维(CNF)是一种新型的碳基催化剂载体。
- Vapor phase synthesis of 2,3,5-trimethyl phenol from methanol and 3,5-dimethyl-phenol over solid acid catalyst was studied in a fixed bed reactor. 制备并考察了甲醇甲基化法合成2,3,5-三甲基苯酚的固体酸催化剂,进行了甲基化反应工艺条件的优化研究。