离子交换

Methods: We have cultivated engineering cell line which perspired rhEPO without blood serum.

采用无血清培养分泌rhEPO工程细胞株，收集培养基上清，经过滤、染料亲和层析、离子交换层析、分子筛层析纯化。

Their action with stationary phase can be adsorption,partition,ion-exchange,molecular sieving,etc.

他们与固定相间的作用可以是吸附、分配、离子交换、分子排阻等。

2The company area more than 60,000 square meters, have the domestic technology leading entire automatic and semiautomatic production line equipment 16, the technical force abundant, craft technological advance, each kind of product examines well appointed, the product quality reliable, the post-sale service is complete, by the electric power company Xi'an hot working research institute, the Hebei Province quality testing center sample survey is reaches the sign product, is saved, evaluates the consumer credit-worthy organization, superposes the same code of honor to use the unit, also is provinces and cities one of hundred strong enterprises.

公司占地面积6万多平方米，拥有国内技术领先的全自动和半自动生产线设备16条，技术力量雄厚，工艺技术先进、各种产品检测设备齐全，产品质量可靠、售后服务周全，被电力公司西安热工研究院、河北省质检中心抽样检验均属达标产品，被省、地评为消费者信得过单位，重合同守信用单位，也是省市百强企业之一。公司主要产品：晶玉橡塑绝热保温材料、晶玉硅酸铝耐火保温材料、晶玉阴阳离子交换树脂、水处理药剂系列产品等。产品热销全国个地市，部分产品已打入国际市场，出口英国、哈萨克斯坦等国。

While, in the production of color and acid free apple juice, a great deal of natural L-malic acid is let with resin alkali lotion.

本文初步研究了电渗析、离子交换树脂和钛合金膜三种方式对果酸废液脱盐并回收苹果酸的可行性，其工艺参数分别如下： 1。

The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.

对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验，试验结果表明，回转窑焙烧过程钒的转化率达到74%以上，全流程五氧化二钒回收率达到71。

The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.

对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验，试验结果表明，回转窑焙烧过程钒的转化率达到74%以上，全流程五氧化二钒回收率达到71.82%，产品质量达到国家标准GB3283-87要求。

The its existence's subject matter one is pretreats system's efficiency not to be high, the flow is long, the effect is unstable; Second, the ion exchange resin needs the acid and alkali regeneration, discharges the acid and alkali waste water massively, the pollution of the environment.

其存在的主要问题一是预处理系统的效率不高，流程长，效果不稳定；二是离子交换树脂需酸碱再生，大量排放酸碱废水，污染环境。

The paper analyses the unbalance condition of acid and alkali waste water treated by exchange resin of anion or cation in the waste water neutralization processing.

文章研究分析了在废水中和处理过程中，阴阳离子交换树脂再生排出的废酸水和废碱水不平衡状况，进一步改进废水中和处理系统，并采用动态中和操作法，使废水中和处理达到标准，提高废水回收使用率。

AEM DMFC is benefited from the alkaline media and the reaction activities of cathode and anode are greatly improved.

引言直接甲醇燃料电池是以离子交换膜为电解质、甲醇为阳极燃料、空气为氧化剂的燃料电池。

Effects of temperature, reaction time and additives on the cation exchange capacity of zeolite synthesized by alkaline hydrothermal reaction of fly ash were investigated.

为衡量粉煤灰沸石的应用性能，本研究主要考察了反应温度、反应时间以及添加剂等水热反应条件对合成粉煤灰沸石产品离子交换性能（CEC，Cation Exchange Capacity）的影响。

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