研究了固体碱催化剂的优点及催化加氢条件。
The advantage of solid base catalyst and the conditions of dehydration and hydrogenation were investigated.
本文重点研究的是金属氧化物型固体碱和复合型固体碱。
Our attention was concentrated on metallic oxide solid base and composite solid base.
考察了固体碱催化剂上2—丙基甲醚合成反应的工艺条件。
The reaction conditions of synthesizing 1-methoxy-2-propanol by solid base catalyst were investigated.
该方法中的固体碱催化剂价格便宜,利于回收,可循环使用。
The solid base catalyst in the method has the advantages of low in price, convenient recovery, and cyclically used.
制备了两种不同的负载型固体碱催化剂用于假紫罗兰酮的合成。
Two kinds of catalysts were prepared to obtain high yield of pseudoionones in this paper.
固体碱催化植物油酯交换反应,产率、转化率达98.5 %以上。
Vegetable oil ester-exchange reaction is catalyzed by solid base catalyst, the yield and conversion of oil is over 98.5%.
油脂酯交换催化剂有:常用酸碱催化剂、酶、固体碱、碘、金属配合物等。
The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al.
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。
The variety and characteristics of solid base catalyst were summarized. And the application of solid base catalyst in the transesterification of lipid was discussed.
近年来,多孔氮化硅基材料因为在高温固体碱催化、传感器等领域的潜在应用,而受到广泛的关注。
Recently, porous silicon nitride materials have attracted much attention because of their potential applications in high temperature solid base catalyst, sensors and so on.
本文采用固体碱催化油脂和醇进行酯交换反应制备脂肪酸酯,着重于固体碱催化剂的研制及工艺优化。
The paper describes the transesterification reaction of oil and fat with alcohol to make fatty acid ester in presence of a solid base catalyst.
综述了近年来固体酸催化、固体碱催化剂和其它载体催化剂的特性及在液相有机化学反应中的应用成果,催化机理及发展趋势。
The property and influencing factors of supported catalysts are discussed. Some important liquid phase organic reactions in which they used and future trend…
开发的固体碱技术不仅具有良好的硫化氢脱除性能,而且还具有硫醇和总硫降低功能。该技术在液化石油气脱硫精制装置上进行了工业应用。
The newly developed solid base technology has been applied on the desulfurization of LPG with good removal of hydrogen sulfide as well as the removal of thiols and the total sulfur.
将合成出的具有特定结构的复合型固体碱催化剂,与溶有纯化碱木素的四氢呋喃建立起多相催化体系,对碱木素进行了多相催化羟甲基化作用。
A heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure .
钙基固体碱具有较高的醋交换制备生物柴油催化活性,且原料来源广、价格相对较低,是一类具有前景的用于生物柴油清洁生产的固体碱催化剂。
The calcium-based solid base catalysts were promising solid base catalysts for biodiesel production due to their high activities for transesterification and lower cost resources.
水滑石类化合物作为一种新型的固体碱催化剂,以其良好的催化性能,结构可调变性,原料价格低廉易制得等特点,受到了越来越多的关注和重视。
As a novel solid base catalyst, the hydrotalcite-like compounds have been attracted more and more attention due to its good catalytic performance, tunable structure and low cost of raw materials.
胡椒碱一种晶体固体,C17 H 19 NO3,自黑胡椒粉中提炼,用作香料和杀虫剂。
A crystalline solid, C17H19NO3, extracted from black pepper and used as flavoring and as an insecticide.
金属氧化物是含有一个金属阳离子和氧化物阴离子(O2-)的结晶固体。它们典型地与水反应生成碱,或与酸反应生成盐。
Metal oxides contain a metal cation and the oxide anion (O2 -); they typically react with water to form bases or with acids to form salts.
目的:制备10 -羟基喜树碱的半固体脂质纳米粒(HCPT -SSLN)并考察其稳定性。
Objective: to prepare 10-hydroxycamptothecin-semisolid lipid nanoparticles (HCPT-SSLN) and investigate its stability.
通过实验分析得到皮革固体废弃物碱法预处理的最佳条件。
The best conditions of alkali pretreatment were got by experimental analysis.
结果超滤法能有效地将石杉碱甲固体脂质纳米粒与游离石杉碱甲分离,回收率为98.09%,测得3批样品的平均包封率为57.63%。
Results Free drugs could be effectively separated from the Hup ASLN by ultrafiltration. The average entrapment efficiency of three batches of Hup ASLN was 57.63%, with the recovery of 98.09%.
结果超滤法能有效地将石杉碱甲固体脂质纳米粒与游离石杉碱甲分离,回收率为98.09%,测得3批样品的平均包封率为57.63%。
Results Free drugs could be effectively separated from the Hup ASLN by ultrafiltration. The average entrapment efficiency of three batches of Hup ASLN was 57.63%, with the recovery of 98.09%.
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