硫酸化

The main products are: calcium sulfate / calcium nitrate / calcium carbonate / copper sulfate / chloride, copper / zinc sulfate / nitric acid zinc / zinc chloride / potassium sulfate / potassium chloride / potassium bromide / potassium aluminum sulfate / potassium dihydrogen phosphate / 2 of potassium hydrogen phosphate / sodium bromide / sodium chloride / sodium nitrate / sodium fluoride / trisodium phosphate / sodium dihydrogen phosphate / disodium hydrogen phosphate / crystallization of sodium carbonate / anhydrous sodium carbonate / aluminum sulfate / nitrate aluminum / crystallization of aluminum chloride / aluminum hydroxide / nitrate Fe / hydrobromide / oxalic acid / boric acid / citric acid / barium chloride / Azone / magnesium sulfate / magnesium nitrate / magnesium chloride / ammonium chloride / ammonium sulfate / Bifluoride ammonium / ammonium aluminum sulfate / ferrous ammonium sulfate / ammonium dihydrogen phosphate / diammonium hydrogen phosphate / bromide / tetrabutylammonium bromide / chloride, nickel / nickel nitrate / sulfate nickel / cadmium chloride / cadmium sulfate / nitrate Cadmium / Cadmium Carbonate / Strontium / strontium nitrate / sulfuric acid manganese / manganese chloride / 50% manganese nitrate solution / stannous chloride / zinc chloride, such as crystallization of the four largest packing of chemical reagents AR and CP level.

主要产品有：硫酸钙/硝酸钙/碳酸钙/硫酸铜/氯化铜/硫酸锌/硝酸锌/氯化锌/硫酸钾/氯化钾/溴化钾/硫酸铝钾/磷酸二氢钾/磷酸氢二钾/溴化钠/氯化钠/硝酸钠/氟化钠/磷酸三钠/磷酸二氢钠/磷酸氢二钠/结晶碳酸钠/无水碳酸钠/硫酸铝/硝酸铝/结晶三氯化铝/氢氧化铝/硝酸铁/氢溴酸/草酸/硼酸/柠檬酸/氯化钡/氮酮/硫酸镁/硝酸镁/氯化镁/氯化铵/硫酸铵/氟化氢铵/硫酸铝铵/硫酸亚铁铵/磷酸二氢铵/磷酸氢二铵/溴化铵/四丁基溴化铵/氯化镍/硝酸镍/硫酸镍/氯化镉/硫酸镉/硝酸镉/碳酸镉/碳酸锶/硝酸锶/硫酸锰/氯化锰/50%硝酸锰溶液/氯化亚锡/结晶四氯化锌等大包装化学试剂的AR和CP级别。

Learn three important sulphonation processes, the emphases are the method of excessive sulfuric acid sulphonation and the azeotropy dewater sulphonation.

了解三种重要的磺化生产工艺，重点介绍硫酸作磺化试剂的过量硫酸磺化法和共沸去水磺化法的工艺。

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

Sulfuric acid was sulphonation reagent, add the sulfuric acidquantity was 8%, reaction temperature was 60~65℃.The reaction occursbetween the feed oil and sulfuric acid,then add 30% of sodium hydroxidesolution conducted neutralization in the Pyrex standard react kettle,when the reactionfinished ,draw out the products by funnel,then the products react with 8%clay to refine received the sulphonation refining oil so as to review property andreceive rate of the shallow sulphonation refining oil .By the using the sulphonationrefining oil to blend lubricant,its quality is on-specification .

为验证其可行性，首先在实验室进行浅度磺化小试，原料油采用新疆原油经常压蒸馏、减压蒸馏、溶剂精制、溶剂脱蜡后的减压二、三线脱蜡油，发烟硫酸作为磺化剂，发烟硫酸加入量8%，反应温度60～65℃，用三口圆底耐热玻璃标准反应釜对原料进行发烟硫酸磺化，加入量30%氢氧化钠中和，分液漏斗抽提，在烧杯内加入量8%白土进行精制得到磺化抽余油，考察浅度磺化抽余油性质和收率，用磺化抽余油调合润滑油质量合格。

Then the inhibition effects of the produced sulfated glucan on E. coli in vitro and in vivo were studied.

利用得到的硫酸化葡聚糖进行体外和体内抑制大肠杆菌效果研究。

Although the sulfated xenobiotics bind poorly to the ER, both stimulated the growth of receptor-positive breast tumor cells.

尽管硫酸化异生物质和ER两者之间关系不大，但是二者都刺激了乳房肿瘤细胞受体的生长。

A novel superacid catalyst, SO〓/Zr-ZSM-11, has been prepared by sulfating the Zr-ZSM-11 and then calcined at high temperature.

通过硫酸化处理Zr—ZSM—11分子筛得到SO〓／Zr—ZSM—11固体超强酸催化剂。

By sulfating synthesized Zr-HMS zeolite, a SO〓/Zr-HMS was prepared. It is proved that it possess superacidity by the experimental results of indicator method, NH〓-TPD, TG and IR.

硫酸化处理后制得SO〓／Zr—HMS，指示剂法测定它的酸强度大于-13.75；NH〓—TPD，TG和IR表征也证明它具有超强酸性。

The methods of extracting and refining tellurium presently were mainly soda roasting,autoclaving in general basic solution,sulfating roasting,oxidative leaching in acid solution, solvent extraction ,emulsion liquid membrane,microbial method,electrorefining,vacuum distillation and zone melting etc.

目前分离提纯碲的方法主要有苏打粉焙烧法、碱性高压浸出法、硫酸化焙烧法、氧化酸浸法、萃取法、液膜法、微生物法、电解精炼法、真空蒸馏法、区熔精炼法等，其中电解精炼法得到的碲的纯度达到99.99%，真空蒸馏碲的纯度达到99.999%，区熔精炼碲的纯度可达99.999995%，本文综述了以上分离提纯碲的方法。

In the second stage (550—600℃) reaction between cobalt and copper oxides and SO_3 dissociated from iron sulphate is initiated.

第二阶段(550—600℃)是利用鉄硫酸盐分解放出的SO_3使鈷、銅氧化物进一步硫酸化。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。