查询词典 catalyst

The effects are obvious, so it will be a catalyst in harmony with environment.

在研究过程中获得了很好的实验处理效果。

The product can be used in the preparation of nano-composite based on silica and catalyst holder.

该产物在合成以二氧化矽为基质的纳米复合材料及用作催化剂载体等方面有较好的应用前景。

RAG - 1 catalyst is a necessaries of exclusive use in ARGG technology, and applied to produce liquefied gas and benzine with high octane value in a large scale.

RAG—1催化剂是与ARGG工艺配套的专用剂，适用于目前最大量的生产液化气和高辛烷值汽油。

The effects of reactant ratio, catalyst amount, reaction time and temperature on the yield of p-nitro-ethyl benzoate were discussed.

以硫酸氢钾为催化剂，合成对硝基苯甲酸乙酯，并对影响产率的诸因素进行了考察。

The effects of catalyst amount, mole ratio of sodium benzoate and benzyl chloride, reaction time on the esterification rate were studied.

考察了催化剂用量、釜残液与氯化苄的物质的量的比和反应时间对收率的影响。

P-Nitro-ethyl benzoate was synthesized with potassium bisulfate as catalyst for the first time.

以硫酸氢钾为催化剂，合成对硝基苯甲酸乙酯，并对影响产率的诸因素进行了考察。

In the precence of the base catalyst KF/Al2O3, the one - pot reaction of 2 -hydroxybenzaldehyde or 2 - hydroxynaphthaldehyde with ethyl α- bromoacetate,α-bromoacetophenone , 1,4 - dichloromethylbenzene , 4,4'- dichloromethylbiphenyl and 1,5 -dichloromethylnaphthalene gave the benzofuran compounds in 38-89% yield.

本文报道用 KF/Al_2O_3作为碱催化剂，由水杨醛或2-羟基-1-萘醛分别和α-溴代乙酸酯、α-溴代苯乙酮、苄基氯、4，4'-二氯甲基联苯和1，5-二氯甲基萘等进行一锅化缩合反应，以38～89％的产率合成了14种芳并呋喃化合物。

Benzoin condensation reaction of benzaldehyde using simple imidazolium based ionic liquids as catalyst has been successfully achieved. The reaction factors such as solvent, base and ionic liquids have been studied in detail.

成功地实现了简单咪唑基离子液体对苯甲醛自缩合成苯偶姻的催化反应，以及详细探讨了溶剂、碱、离子液体种类及用量等各种影响因素。

Under optimal reaction conditions: catalyst dosage(mass fraction based on benzonitrile)6%,etha...

在上述条件下，苯甲腈催化加氢反应的表观活化能为20.4kJ/mol。

Keywords amorphous nickel aluminium alloy catalyst;benzonitrile;benzylamine;catalytic hydrogenation

非晶态镍铝合金催化剂；苯甲腈；苄胺；催化加氢

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。