查询词典 ion exchange

This paper develops the method of extraction and purification of thrombin from the porcine plasma by using Ion Exchange.

对离子交换法提取纯化凝血酶的方法进行了改进：首先在-20℃对猪血浆进行冷冻处理，然后再采用离子交换法提取纯化凝血酶。

The advantages and applications of solid-state ion exchange method for modifying zeolites are summarized.

介绍了固态离子交换方法制备改性沸石的特点和应用。

A method was proposed to improve the chemical stability of ion exchange strengthened glass and to expand its application.

而将化学钢化的玻璃利用适当盐溶液处理后，可以改善钢化玻璃的化学稳定性，因而可以进一步提高化学钢化玻璃的使用性能和拓展其使用范围。

Objective To study the performance of ion exchange fiber adsorbing and desorbing puerarin by batch method.

目的考察离子交换纤维对葛根素的静态吸附和解吸作用。

It is clear that catalysis with ion exchange resins provides an effective and efficient answer to a number of catalytic problems.

很明显，用离子交换树脂进行催化是解决许多催化问题的一种有效办法。

Ion exchange and complexation reaction are the common chemical reactions observed in soil.

离子交换和络合反应是土壤中常见的化学反应。

Ion exchange has slight effect on the crystal structure, composition and organic surface modification of attapulgite.

离子交换对凹凸棒土的晶休结构、成分和有机表面改性的影响很小。

Adsorption resin separation is one of the new technologies developed after ion exchange resin in the 60's of the 20th century.

中文摘要：吸附树脂分离技术是 20世纪 60年代末发展起来的继离子交换树脂后的一项分离新技术。

Antioxidant 2,2′-methylene-bis(4-ethyl-6-tert-butylphenol) is synthesized by condensation of formalin and 4-ethyl-2-tert-butylphenol which is prepared by alkylation of p-ethylphenol with isobutylene in the presence of phosphoric acid or ion-exchange resin as catalysts.

研究了以对乙基苯酚、叔丁醇为原料，在酸性条件下，进行烷基化反应，合成2 叔丁基 4 乙基苯酚，再进一步缩合成抗氧剂425的工艺条件。

Pilot-scale experiment for synthesis of tert-butyl alcohol from isobutylene in C4 raffinate was carried out by counterflow hydration over large grain ion exchange resin catalyst in a φ100 mm×10 m reactor.

采用大颗粒离子交换树脂催化剂，在φ100mm×10m的反应器中进行了异丁烯催化逆流水合制叔丁醇的中间试验。

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。