硫酸镁

The industry magnesia mainly uses in making the ceramics, the enamel, the fire-proof material and so on; In the polishing compound, the adhesive, in the paint manufacture takes the stopping; In the artificial fiber, the rubber (chloroprene rubber, fluorine rubber) make the promoter and the catalyst; Makes the antacid on the medicine in the laxative, uses in treating the hyperacidity, the stomach and duodenum ulcer; May take the hard sugar purification is the decolorant in the food processing, the ice cream pH value conditioner and so on; In the construction profession, the magnesia may the manufacturing contain the magnesium special cement and the heat preservation board and so on; The biggest use is serves as the fertilizer and domestic animal's feed in the agriculture, causes the plant and in the animal metabolism process principal element, when serves as cow's feed, may prevent because to lack nervous system function being out of balance which the magnesium causes, namely the so-called forage grass convulsion gets sick; Uses in the chemical industry making the metal magnesium and the magnesium chemical, like magnesium sulfate, magnesium chloride as well as other chemicals; Moreover also uses in the water treatment, the detergent which the flue was mad uses in the glass, the dye, the electric cable, the silcon steel industry, the uranium processing, the electronics industry, the insulation material industry, as well as uses in professions and so on petroleum chemical additive, casting, phenolic plastic.

工业氧化镁主要用于制造陶瓷、搪瓷、耐火材料等；在抛光剂、黏合剂、油漆的制造中作为填充料；在人造纤维、橡胶中作促进剂和催化剂；在医药上作抗酸剂于轻泻剂，用于治疗胃酸过多、胃和十二指肠溃疡病；在食品加工上可作为砂糖精制是的脱色剂，冰淇淋的pH值调节剂等；在建筑行业中，氧化镁可生产制造含镁特种水泥和保温板等；在农业上最大用途是用作肥料和牲畜的饲料，使植物和动物代谢过程中的主要元素，用作奶牛的饲料时，可防止因缺镁而引起的神经系统机能失调，即所谓牧草性痉挛病；在化学工业中用于制造金属镁和镁化学品，如硫酸镁、氯化镁以及其他化学品；另外也用于水处理，烟道气的洗涤剂用于玻璃、染料、电缆、硅钢工业、铀加工、电子工业、绝缘材料工业，以及用于石油添加剂、铸造、酚醛塑料等行业。

A large difference is found between the obtained metastable phase diagram at 35 ℃ and Vant Hoffs stable phase diagram at 25 ℃. The crystallization regions of schoenite(K2SO4*MgSO4*6H2O), epsomite(MgSO4*7H2O), magnesium sulfate pentahydrite(MgSO4*5H2O) and starkeyite(MgSO4*4H2O) disappear and the crystallization regions of leonit and astrankit are greatly incresed.

所得35 ℃介稳相图与Vant Hoff 25 ℃稳定相图比较有较大区别：软钾镁矾（K2SO4*MgSO4*6H2O）、七水硫酸镁、五水硫酸镁及四水硫酸镁结晶区域消失，钾镁矾和钾盐镁矾结晶区域显著扩大。

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。

This paper presents the experimental data of metastable phase equilibrium of Na+, K+, Mg2+∥Cl-, SO2-4-H2O quinary system at 35 ℃, from which the metastable phase diagram is drawn. It consists of nine regions of crystallization saturated with sodium chloride, potassium chloride, glasserite(3K2SO4*Na2SO4), leonite(K2SO4*MgSO4*4H2O), kainite(KCl*MgSO4*2.75H2O), thenardite(Na2SO4), astrankit(MgSO4*Na2SO4*4H2O), carnallite(KCl* MgCl2*6H2O), magnesium sulfate hexahydrite(MgSO4*6H2O) and bischofit(MgCl2*6H2O).

研究得出（Na+， K+， Mg2+∥Cl-， SO2-4-H2O）五元体系35 ℃时的介稳溶解度数据，绘制了该体系35 ℃的介稳相图，共有9个为氯化钠所饱和的结晶区域：氯化钾、钾芒硝（3K2SO4*Na2SO4）、钾镁矾（K2SO4*MgSO4*4H2O）、钾盐镁矾（KCl*MgSO4*2.75H2O）、光卤石（KCl*MgCl2*6H2O）、白钠镁矾（Na2SO4*MgSO4*4H2O）、硫酸钠、六水硫酸镁（MgSO4*6H2O）和水氯镁石（MgCl2*6H2O）。

On the basis of describing the patent technology of using titanium white waste acid to produce industrial grade magnesium sulfate, the market prospect of magnesium sulfate was analyzed.

在简述钛白废酸生产工业级硫酸镁专利技术的基础上，对硫酸镁的市场进行了分析，说明此专利技术既可解决钛白粉厂的环保问题，又有良好的经济效益。

The first group (M68,F31;age 58a±s8a) was treated withaddition of potassiummagnesiumaspartate 40-60mL plus 10%potassium chloride 10mL;and second group (M126,F 45;age 53a±8a) was treated with theaddition of 25%magnesium sulfate 5-10mL plus 10%potassium chlor ide 10-15mL,both in 5%glucose injection 500mL,iv,drip,qd×10d.

门冬联用组99例在常规治疗基础上加用门冬氨酸钾镁40-60mL联合10%氯化钾10mL 治疗；硫酸镁联用组171例加用25%硫酸镁5-10mL联合10%氯化钾10-15mL治疗；2组药物均分别溶于5%葡萄糖注射液500mL中静脉滴注，qd，疗程均为10 d。

The paper elaborateds the methods for the magnesium salt whisker synthesis which contains magnesium pyroborate whisker、basic magnesium sulfate whisker、magnesia whisker ect.

详细阐述了硼酸镁、碱式硫酸镁晶须和氧化镁晶须等镁盐晶须的合成方法，着重介绍了镁盐晶须作为增强材料在金属铸造、复合材料、塑料等行业的应用。

In the first part,the uses and productions of metal Mg,sorel cement,Mg_2 fire retardant,light magnesium carbonate,light magnesium oxide and magnesium sulphate are described.

在镁资源综合利用方面着重介绍了金属镁的制取、镁水泥、氢氧化镁阻燃剂及轻质碳酸镁、轻质氧化镁、硫酸镁的制取与用途。

The physical,chemical character and usage of magnesium sulphate were introduced in this paper,the production method and process of magnesium sulphate were also expounded.

介绍了硫酸镁的物理、化学性质和用途，阐述了硫酸镁的生产方法及工艺流程：硫酸法，盐湖苦卤法，苦卤复晒法，高温盐溶浸法，震荡转化法，碳酸化法，二氧化硫催化法。

The industrial magnesia and vitriol are used to produce magnesium sulfate in this paper, and the simulated wastewater is prepared using magnesium sulfate and kaolin. The flocculating effect of polyacrylamide, cationic polyacrylamide and anionic polyacrylamide is studied and compared through measurement of absorbency by spectrophotometer.

利用工业氧化镁和硫酸制备一定浓度的硫酸镁，结合高岭土配制氧化镁烟气脱硫的模拟废水，通过分光光度计吸光度测定了聚丙烯酰胺、阳离子型聚丙烯酰胺和阴离子型聚丙烯酰胺在模拟废水中的絮凝效果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。