除去离子

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基，烯碳羟基由于与一个共轭体系相连，从而其羟基可以离解而呈现出弱酸的性质，因而在碱性条件下易形成烯醇钠盐的结构，当除去钠离子后或在酸性溶液中，烯醇钠盐结构转变为烯醇结构，但由于烯醇结构不如烯酮结构稳定，从而形成烯醇结构后，烯醇结构异构化为烯酮结构，因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以，过量的硝酸可以加热除去；将可溶性钨酸盐和表面活性剂溶解于去离子水中，得到钨酸盐溶液，表面活剂性的加入量为反应原料重量的0-30wt％；将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌，发生沉淀反应，磁力搅拌时间为25-60分钟，得到白色沉淀；将含有沉淀物的溶液作为前驱物加入到反应釜中，发生水热反应，反应温度为100-260℃，反应时间为24～72小时；离心分离，洗涤，干燥，即得所需产物。

This paper discusses the cause of chlorine ions formation in the production of sodium dichromate and its influence on production environment and quality.

本文讨论了红矾钠生产过程中氯离子产生的原因及对生产环镜、产品质量的影响，进而分析生产工艺流程中除去氯离子的有关工艺参数，将其结果应用于实际生产，使产品中的氯离子含量在0.1%以下。

METHODS Using a combination of cryoglobulin precipitation,euglobulin precipitation, ion-exchange chromatography,(NH4)2SO4 precipitation and affinity chromatography, the impurity protein of different quality was removed, and the easy and effective condition was selected toincrease the purity and content of C2 in the final product.

方法利用冷球蛋白沉淀、优球蛋白沉淀、离子交换色谱、硫酸铵沉淀和亲和色谱几种方法，将血清中不同性质的杂蛋白除去，选择相对简单且分离效果好的条件，提高终产物中目标蛋白C2的纯度和含量。

This invention relates to method of using boron magnesium fertilizer to produce fiber shape magnesium hydroxide fire retardant. First dissolve boron magnesium fertilizer, then add magnesia and oxydol to solution to carry out sulfuric acid neutralization and ferrous ion oxidation, remove iron ion, then add ammonium bicarbonate to carry out metathetical reaction.

利用硼镁肥生产纤维状氢氧化镁阻燃剂的方法，涉及一种制取纤维状氢氧化镁的方法，首先将硼镁肥溶解，然后向溶液中加入氧化镁和双氧水进行硫酸中和与亚铁离子氧化并除去铁离子，然后对余液加入碳酸氢铵进行复分解反应。

Fe and Al in the system were removed by precipitation at pH≈5. Co2 was obtained by precipitation at pH=9.5~10, it was then purified by reprecipitation. Co3O4 was obtained by calcining Co2 at 500℃ for 2h, the purity of which was 99.3%. The recovery rate of Co was 97%. Li2CO3 was obtained by adding Na2CO3 to the mother liquor, the purity of which was 97.8%. The one-time recovery for Li was 73%. The mother liquor can be reused after being cooled to below 10℃ and Na2SO410H2O is recovered.

体系中的Fe、Al从杂质在pH≈5时沉淀除去；Co2在pH为9.5~10沉淀得到，经酸溶解后二次沉淀提纯，500℃煅烧2.0h得Co3O4，其纯度达到99.3%，钴的回收率达97%，母液中Li离子加Na2CO3处理，沉淀得Li2CO3，其纯度达97.8%，锂的一次回收率达73%，母液经冷却至10℃以下除去Na2SO410H2O后可循环使用。

Dump and clean tank and refill with fresh deionized water.

倾卸并且干净的坦克并且与新鲜除去离子的水再充填。

Flush pump used for biocide with deionized water.

在biocide与除去离子的水充足的泵使用了。

Treat the entire deionized water rinse system.

对待全部除去离子的水冲洗系统。

The Tatun Coal Electricity Company Gangue Thermal power plant boiler supplies aqueous system used traditional the preparation craft, the processing water source was the ground water ahead of time, namely carries on the pretreatment elimination water through the mechanical filter the suspension, the colloid, the organic matter and so on, through the ionic exchange technology except the dehydration in salty ion, its craft approximately is again as follows

大屯煤电公司矸石热电厂锅炉补给水系统先期采用传统的制备工艺，处理水源为地下水，即通过机械过滤器进行预处理去除水中的悬浮物、胶体、有机物等，再通过离子交换技术除去水中的盐离子，其工艺大致如下

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。