硫酸

In this work, salbutamol and sulphuric acids were used as reactants and isopropanol was used as a solvent.

以沙丁胺醇和硫酸为反应物，在异丙醇溶液中采用反应结晶法制备超细硫酸沙丁胺醇颗粒。

This article had carried on the transformation to the ramee retting wastewater processing project which mainly used the method of "the transformation-biological chemistry" for the polymerization iron sulfate or the polymerization aluminum chloride.

对苎麻脱胶废水处理工程进行了改造，采用了&物化－生物化&组合工艺和企业锅炉烟气对苎麻脱胶废水进行中和处理，以废治废；采用硫酸亚铁、聚合硫酸铁或聚合氯化铝为絮凝脱色剂，去除大量的非溶解性污染物。

Company covers an area of 6000m2, equipped with casting, steel casting, machining, finishing, such as workshops, the chemical industry are the production of sulfuric acid equipment sentinel professional enterprises, can provide users with 10-400Kt / a sulfuric acid plant voltage cast iron pipe into tower oliveri heat plate, with three towers acid, boiling furnace hood, K alloy casing, valves, etc..

公司占地面积6000m2，设有铸造、铸钢、机加工、精加工等车间，是化工行业定点生产硫酸设备专业企业，能为用户提供10-400Kt/a硫酸装置耐酸耐压铸铁管、转化塔耐热篦子板、三塔分酸器、沸腾炉风帽、K合金套管、阀门等。

A Potassium ion transfer and electron transfer between potassium ferricyanide in the aqueous phase and ferrocene in nitrobenzene are observed using potassium ferricyanide/potassium ferrocyanide as the redox couple. Meanwhile, the transfer reactions of some hydrophilic ions (Li〓, Na〓, H〓, K〓 and NH〓〓) are obtained using ferric sulfate/ferrous sulfate as the redox couple.

a以铁氰化钾/亚铁氰化钾为电对观察到钾离子在水/硝基苯界面上的转移和铁氰化钾与三茂铁之间的异相电子转移过程；以硫酸铁/硫酸亚铁为电对观察到强亲水性阳离子(Li〓、Na〓、H〓、K〓和NH〓〓)在水/硝基苯界面上的转移。

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

We put zinc sulphide mine into different sulphate system and analyzed polarization curve about anodic oxidation.we found that the mine was oxidized effectively and the rapid oxidation happened when we adopted the zinc sulphide ore suspension electrolyte which contained ZnSO_4,(NH_4)_2SO_4 and H_2SO_4. This system was suffice to product metal zinc industrially. The appropriate suspension electrolyte composition consisted of zinc 90～130g/l,(NH_4)_2SO_430～50g/l, H_2SO_430～50g/l, suspension electrolysis temperature 50℃, anodic oxidation potentiometer 0.6～0.8V.

研究了硫化锌矿在不同的硫酸盐体系中的溶解，通过阳极氧化极化曲线进行分析，得出当以硫酸锌、硫酸铵和硫酸作为硫化锌矿悬浮电解液时，矿物能够有效地被氧化，氧化速度最快，能满足工业上生产金属锌的要求，并且合适的悬浮电解液组成为：锌90～130g/l，硫酸铵30～50g/l，硫酸30～50g/l，悬浮电解温度40～50℃，阳极氧化电位0.6～0.8V。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

Key words: sulfuric acid production from element sulfur; double-chamber floating cation bed; de-salted water; re-genesis by sulfuric acid

介绍硫磺制酸中脱盐水双室浮动阳床以硫酸代替盐酸再生的改造情况运行数据表明，以硫酸再生脱盐水虽然成本比盐酸略高，但脱盐水质量及制水量基本相同，特别是能为污水处理达到&零&排放创造条件，减少环境污染

With change of calcium sulfate shape and reduce of compact degree of coat layer on phosphate rock, the velocity of second stage reaction of SSP is accelerated by active addition agent, and with intensification of mass transfer, the rate of first stage reaction of SSP is promoted by ultrasonic.

活化添加剂促进酸矿反应的重要途径是改变硫酸钙结晶的晶习，减弱硫酸钙对磷矿包裹的致密程度，特别表现为对第二阶段的反应十分有利，而超声波对酸矿反应的促进主要表现为提高第一阶段反应的传质过程强度。

The mixture of amino acid was obtained by hydrolyzing tussah silk with sulphuric acid.

用硫酸水解柞蚕丝制取混合氨基酸，采用二次回归正交旋转组合试验，考察硫酸浓度、水解温度和水解时间对氨基酸回收率的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。