查询词典 ion exchange

The study on ion-exchange resin for wastewater treatment and its application are discussed in the paper.

介绍了离子交换树脂及其在多种废水处理中的应用研究。

Ion exchange resins have also proved useful as drug carriers, releasing the drug from the resinate following an influx of competing ions .

经研究证明，离子交换树脂是一种很有效的药物载体，由盐酸树脂在与活跃阳离子的结合中释药。

Contaminant cations such as calcium,magnesium,barium,strontium,and radium and anions such as fluoride ,nitrate,fulvates,humates,arsenate,selenate,chromate ,and anioic complexs of uranium can be removed from water by using ion exchange or adsoption onto activiated alumina.

具有污染能力的像Ca，Mg，Ba，Sr，Ra的阳离子，和像氟化物，硝化物，黄酸物，腐质酸物，砷酸盐，硒酸盐和铬酸盐的负离子以及像铀一样的负离子复合物可以通过离子交换和离子吸附从水中排除。

Sepiolite is a kind of samdwich clay with high ion exchange ability, adsorption and surface area which makes it to be an excellent support for catalyst.

中文摘要：海泡石属于2：1型的层状天然粘土，具有较高的阳离子交换性、吸附性能和比表面积，本身具有一定的催化活性，是优良的催化剂载体，但其应用受到低热稳定性和孔径分布的限制。

Waste water which had been purified by ion-exchange resins was recovered for chemicals in silvering solutions.

废水经离子交换树脂净化后回收使用，节约了镀银液所需的化工原料。

Mordenite has a significant effect on the activity of catalyst, results of test showed: with soluble glass as main feedstock and addition of crystal precursor, thecrystalization time can be reduced, and the synthesized mordenite has higher surface area and structure of small crystal particulate and big pore diameter. Through ion exchange with ammonium and acid, the synthesized mordenite is suitable to prepare isomerization catalyst.

丝光沸石对催化剂活性有较大影响，试验结果表明：以水玻璃为主要原料，加入晶种可缩短晶化时间，合成的丝光沸石具有较高的比表面积及小晶粒大孔径结构，经铵交换及酸交换后适于制备异构化催化剂。

During extraction of gallium,the electrolyte yielding by ion-exchange methods has high alkalinity and viscosity.Hydrogen gas and oxygen generated during electrolysis forms plentiful spume.These spume may result in electrolysis ceasing.

在镓提取过程中，以离子交换法获得的电解原液碱度高，黏度大，电解时不断产生大量的氢气和氧气，形成大量泡沫，使电解无法正常进行。

The sorbent is prepared from a kind of natural mineral zeolite - stilbite (its Chinese code name is CXN, its English code name is STI, and its scientific name is stilbite); through positive ion exchange produce H-STI, mix with artificial compounded commodity H-ZSM-5 zeolite, add cementing agent to molding, after strengthening process, then through silver carrying to produce. The small ball of the sorbent of 1 mm diameter can get 40 Newton per grain.

该吸附剂是由一种天然矿物沸石-辉沸石(中国代号CXN，英文代码STI，学名stilbite)，通过阳离子交换制成H-STI，与人工合成的商品H-ZSM-5沸石混合加粘结剂成型，经强化处理后再经载银而制成，直径1毫米的该吸附剂小球强度可达40牛顿/粒。

The synthetic of high performance chelating resin and the study of ion exchange equipment will be two research topics in the future.

提出利用离子交换法处理低浓度金属离子废水易于实现工业化和自动化，是将来的发展趋势，其中高性能树脂的合成以及离子交换设备研究是以后的两大研究方向。

The present research work focuses on two aspects. On one hand, the most successful alkaloid-derived ligands have been attached to a soluble or insoluble support covalently, but additional OsO〓 is necessary to maintain the consistent catalytic activity during the reuse of supported chiral ligand in the next AD reaction. On the other hand, immobilization of osmium tetroxide based on microencapsulation, ion-exchange techniques, and osmylation of resins has made it possible to recover and reuse of the osmium, but failed to recover the chiral ligand at the same time.

目前的研究主要集中在两个方面：一方面，将手性配体共价键合到不溶或可溶性载体上制成负载手性配体，但在重复使用负载配体时必须补充OsO〓，才能保证催化活性不降低；另一方面，将OsO〓包裹在高聚物微囊内，或运用离子交换技术或共价键合的方法将OsO〓固载在树脂、硅胶或层状双金属氢氧化物材料上，但手性配体却不能同时回收。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷