离子交换

Recent advance in REM fuel cell in the world is described in this paper.

介绍了世界上离子交换膜燃料电池的最新进展。

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。

It was found that calcium resinate, a hydrophobic and easy aggregating compound was formed by ion exchang between sodium resinate and calcium ion.

结果表明：游离的树脂酸钠盐能与Ca(上标 2+)进行离子交换，生成疏水且易聚集的树脂酸钙。

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。

The experimental results show that F1 resin has good adsorptive and desorptive performances to rhenium,and has a good future.

试验结果较理想，表明F1树脂是一种很有发展前途的新功能离子交换树脂。

In the preparation method, zirconium is mixed with benzenephosphonic acid according to the molar ratio of 1:2 to 1:4, and Alpha-zirconium phenyl phosphonate is produced by centrifugal washing after one to five days of crystallization under the temperature of 50 DEG C to 100 DEG C; deionized water is added in order to prepare Alpha-zirconium serosity, the solid content of which is 4 percent to 8 percent; the Alpha-zirconium serosity is granulated and dried by a rotary spray dryer, the feeding speed of the Alpha-zirconium serosity imported into an atomizer is controlled between 20ml/min and 80ml/min, and the temperature of a hot air inlet is controlled between 120 DEG C and 200 DEG C.

本发明涉及一种大比孔容微球α-苯膦酸锆及其制备方法，其颗粒尺寸为10～100μm，比孔容为0.908cc/g，比表面积为125.8m 2 /g；其制备方法是将锆和苯膦酸以摩尔比1∶2～1∶4混合，在50～100℃温度条件下晶化1～5天，离心洗涤得到α-苯膦酸锆；加入去离子水配制α-苯膦酸锆浆液，其固含量为4-8％；将α-苯膦酸锆浆液用旋转式喷雾干燥器进行造粒、干燥，控制α-苯膦酸锆浆液输入雾化器的进料速度为20～80ml/min，控制热风进风口温度为120～200℃；该方法具有操作简单、合成条件温和，对环境污染小等特点，该材料应用于催化、催化剂载体、吸附、离子交换等方面。

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。

Their advantages and disadvantages are compared. Some elements affecting the single-stage separation factor are discussed.

表明离子交换色谱法是一种极具潜力的硼同位素分离方法，具有高效节能的特点。

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。

Compared with the reference value O.lSug/gUaOg of standard materials, the relative error was 10%.

对离子交换树脂柱的再生进行半自动化改造，大大提高了效率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。