杂多的

The diamyl glutarate was synthesized by esterification of n- amyl alcohol and glutaric anhydride separated from dicarboxylic acid by catalysis of silicotungstic acid.

以正戊醇和从二羧酸中分离出的戊二酸酐为原料，以硅钨杂多酸为催化剂进行酯化反应，合成戊二酸二正戊酯。

Amyl cinnamate was synthesized from cinnamic acid and amyl alchol using tungstosilicic acid as catalyst.

以钨硅杂多酸为催化剂，通过桂皮酸和正戊醇酯化反应合成桂皮酸正戊酯，研究了各有关因素对桂皮酸酯化率的影响。

The problem of 'candlewick effect' related to the glass fiber was successfully solved by introduction of the char forming catalyst heteropolyacid and the flame retardant modifier into the flame retarding system.

通过在阻燃体系中引入成炭催化剂杂多酸和阻燃改性剂，成功地解决了玻纤增强尼龙6燃烧时的"烛芯效应"问题。

The tattle unifies in recent years study on the synthesis of cinnamate of the status quo and application prospect,the use of activated carbon as carrier of phosphotungstic heteropoly acid catalyst for catalytic synthesis of cinnamic acid ester had a preliminary inquiry,and the results were satisfactory.

中文摘要：本文结合近几年合成肉桂酸酯的研究现状及应用前景分析，采用磷钨杂多酸作催化剂活性炭为载体催化合成肉桂酸系列酯进行了初步探究，并且结果令人满意。

The optimum process parameters were determined about the dehydration of cyclohexanol.

对杂多酸的特性及催化脱水机理进行了探讨。

Above the light off temperature, the main products of ethane oxidative dehydrogenation were ethene, carbon monoxide and carbon dioxide.

在负载型杂多酸上进行的乙烷氧化脱氢反应主要产物是乙烯、一氧化碳和二氧化碳。

In the work, three P-Mo-V heteropoly acids with different Vanadium number have been synthesized by acidification- etherization. Their component and structure have been confirmed by ICP-AES and TGA. They have been characterized by FT IR, XRD and UV. FT IR demonstrates their Keggin structure.

本文采用酸化—醚化法合成了三种不同钒原子数的P-Mo-V三元杂多酸，并用ICP-AES和TGA确定其化学组成和结构，用FT IR、XRD和UV等手段对其结构和性质进行了表征。

The photodegradation of the acid fuchsin wastwater using the heteropolyacid was studied.

以杂多酸为催化剂，研究了酸性品红染料废水的光催化降解特性和工艺。

The synthesis methods of nipagin esters catalyzed by sulfuric acid , p- toluene sulfonic acid , ferric sul-fate hydrate, ferric chloride hexahydrate, aluminium chloride hexahydrate, rare earth compound, solid super acid and heteropoly acid were reviewed.

评述了采用硫酸、甲苯磺酸、合硫酸铁、水合三氯化铁、水合三氯化铝、土化合物、体超强酸和杂多酸等催化剂催化合成对羟基苯甲酸酯的方法。

Vegetable tannins is a kind of complex matter which can make skin into leather. It can be pick-up from water or some other impregnant.

植物单宁是能使生皮成革的复杂多酚，它能被水或其他溶剂提取出来，广泛分布在植物体内。

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。