离子交换

Experiment have proved that the glycerol of hazen≤100can be reˉclaimed via ion exchange and chemistry disposal of glycerol distilled residue ;high quality glycerol and polyglycerol can be gained by Short-path distillation.

实验证明，甘油蒸馏残渣经过化学处理除杂后，通过离子交换，可以回收得到色泽100以下的甘油质；采用短程蒸馏(Short-path distillation)技术，可以得到高质量的甘油和聚合甘油。

To reveal the reason of above phenomenon, we purified the eluant by POROS 20HQ ion-exchange chromatography and got five proteins.

为弄清这一现象的产生原因，将嗜硫色谱洗脱峰通过POROS20HQ离子交换色谱进一步分离，获得5个分子量非常接近的组分。

When the pH is 1.00, column is longer than 8.0 cm, the flow rate of sample solution is lower than or equal to 1.0 mL·min-1 and elution rate with 0.1 mol·L-1 HCl-3% thiourea(40mL) is lower than or equal to 0.5 mL·min-1, Au, Ru, Pd, Pt and Rh can be quantitatively preconcentrated.

对贵金属通过离子交换柱的酸度、过柱流速、柱高、洗脱剂类型、洗脱剂用量和洗脱剂流速进行了系统的研究，找到了最佳条件，同时，还对该树脂的吸附性能和重复使用进行了研究。

The preinstallation analysis should also take into account the surface area of the ion-exchange resin beds, the temperature range of the system water, the operational range of the flow rates, the frequency of use of the system, the type of regenerant chemicals, and the proposed method of steam sterilization or sanitization.

预安装的分析仪器仪表同样也考虑离子交换树脂床的表面积，系统水温范围，流量操作范围，系统使用频次，再生化学品的类型和建议的蒸汽灭菌或消毒方法。

PURPOSE: To study the effect of ion-exchange treatment on the fracture resistance of hot pressable ceramic crown.

目的：研究国产陶瓷表面离子交换处理对热压铸瓷冠抗碎裂载荷的影响。

Hot pressable ceramic system ; biaxial flexural strength ; ion-exchange ; polishing ; glazing

热压铸陶瓷；双轴弯曲强度；离子交换；打磨和抛光；上釉

Ion-exchange treatment can increase fracture resistance of the cerinate hot pressable ceramic crowns, it may help to increase the clinical reliability of Lucite reinforced ceramic dental restorations.

国产陶瓷离子交换处理可增加热压铸瓷冠的抗碎裂载荷。

Thirdly, selective catalytic reduction of NO with propene over Cu ion-exchanged Al-MCM-41 has been studied.

在氮氧化物催化还原的活性评价实验中，考察了铜离子交换的Al-MCM-41对丙烯选择还原一氧化氮的催化活性。

The main products are: chloride, polyacrylamide, ion exchange resins, protopine, three acid, filter, ferric chloride, ferrous sulfate, as well as the chemical reagent and so on.

主要产品有：聚合氯化铝、聚丙烯酰胺、离子交换树脂、片碱、三酸、、滤料、三氯化铁、硫酸亚铁、以及化学试剂等等。

The resin has double effects including absorption and ion exchange; and it simultaneously has hydrophilic basic pyranyl functional groups and hydrophobic styrene frames and has good affinity to amphoteric bioreagents such as the protein.

该树脂具有吸附与离子交换的双重作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐