硫酸

This process has been proposed for treating certain highly siliceous, low grade cobalt and copper oxide ores.

两段硫酸化焙烧过程是以硫酸作硫酸化剂处理某低品位含銅鈷士矿的一个新方案。

Through lots of tests, the new technology of preparing the polymeric ferric aluminum silicate sulfate by using the waste-acid of Ti02-industriy and the coal fly ash has been designed. The highest Al-acid stripping rate can be achieved by the waste sulfate acid under boiling degree for 1. 5h when the mass ratio between NaCl and Coal Fly ash is 0. 05:1, as well as that between Coal Fly ash and Waste Acid ratio is 1:10. By means of the oxidation-polymerized reaction under 40-50*C and normal pressure, using NaNCkas catalyst and air as oxidation, the polymeric ferric aluminum sulfate can be obtained. The poly-silicic acid is polymerized with soluble glass in the optimum conditions of pH=5-6 and the concentration of Si02 is about 3%. The inorganic high molecule coagulant of PFASS is synthesized with the poly-silicic acid into the solution of polymeric ferric aluminum sulfate.

本论文通过大量的试验，研究开发出了用粉煤灰及钛白废酸制取聚合硫酸硅酸铁铝的新工艺，其最佳工艺条件为：于沸点温度，以NaCl为助溶剂(NaCl与粉煤灰质量比为0.05：1)，以钛白废酸浸取粉煤灰(固液比为1：10)中的铝1.5小时，最大浸取率可达40％；经过滤洗涤后，调节滤液pH至2.0左右，以NANO_2为催化剂(NaNO_2用量为滤液中FeSO_4·7H_2O量的3％)，空气为氧化剂，于40-50℃进行常压催化氧化反应，制取聚合硫酸铁铝，催化氧化时间为2小时；将工业水玻璃稀释至3％左右，调节其pH于5-6，室温下制备活性聚硅酸；将活性聚硅酸与聚合硫酸铁铝按照一定比例复合，经熟化，即制得新型无机高分子混凝剂PFASS。

For many years, the company has been devoting to the spectacled production of citric acid and sulfuric acid, has cultivated a group of high-level professional and technical staffs and founded several well-equipped production line of citric acid and sulfuric acid.

多年来，公司一直致力于柠檬酸和硫酸的专业化生产，缔造了一批高水平的专业技术人员以及数条装备精良的柠檬酸和硫酸生产线；年产柠檬酸和柠檬酸系列产品6万吨、硫酸系列产品20余万吨。

It was found that activated sludge can degrade effectively four of them except chlorinated paraffin and alkyl sulfonyl chloride, so it is suggested that these four kinds of fatliquors are suitable for leather processing concerning their environmental.

研究发现，硫酸化牛蹄油、硫酸化蓖麻油、硫酸化鱼油和卵磷脂易于生化处理，能够被活性污泥高效降解；然而活性污泥不能降解氯化石蜡和烷基磺酰氯，特别是烷基磺酰氯还会抑制污泥的生物降解活性。

For the first time, oil of vitriol is used to sulfonate OP, and the optimum conditions of sulfonating reaction are ascertained.

本文采用浓硫酸对乳化剂OP-10进行硫酸化改性，确定了硫酸化工艺的最佳条件。

Some countermeasures are taken to solve the problems, such as the smaller pipeline diameter (108 mm), poorer water quality, more serious scale deposit and lower pump capacity, which are resulted from the panel cooler for concentrated sulfuric acid (32m2) instead of the calandria type cast-iron cooler for enlarging productive capacity (from 20kt/a to 40kt/a).

在硫酸装置扩能时(由20 kt/a改为40 kt/a)，选用板式浓硫酸冷却器(32m2)代替原铸铁排管冷却器。使用中发现管路直径偏小(￠108mm)，水质差结垢严重，硫酸泵扬量选择偏小等问题。提出改进措施。

Multiple-walled carbon Nanotubes were used as carrier to load cerous sulfate catalyst for catalytic synthesis of n-butyl propionate Single factor and orthogonal experiment methods were applied to investigate the effects of the molar ratio of butyl alcohol to propionic acid, cerous sulfate mass fraction and reaction time on the conversion of propionic acid and the optimal technical conditions were determined as:ratio of butyl alchhol and propionic acid 1.5:1, cerous sulfate mass fraction 15% and reaction time 70 min.

以多壁碳纳米管作载体担载硫酸铈催化合成丙酸丁酯。分别采用单因素和正交实验方法考察了醇酸摩尔比、硫酸铈质量分率和反应时间等主要因素对丙酸丁酯得率的影响，并确定了最佳工艺条件为：醇酸摩尔比1.5：1、硫酸铈质量分率15%和反应时间70 min。

The main contents of experiment as following:(1) Modified polymerized ferric sulphate decoloring agent is made through oxidation, hydrolyzation, polymerization with ferrous sulphate heptahydrate, sulphate acid, natrium chlorate etc.

本论文为印染废水的絮凝沉降处理方法提供了一种新型的性能优良的脱色剂，具体内容有：(1)采用七水硫酸亚铁、硫酸、氯酸钠等原料，通过氧化、水解、聚合反应，制备了改性聚合硫酸铁脱色剂。

In this paper, a systematic study on the wetting capacity of sulfate of myristic acid monoethanolamide was made by the canvas sinkking method, through measuring the wetting time of MMS's solution under different concentration, different temperature and different degree of hardwater and comparing with three other surfactants.

对肉豆蔻酸单乙醇酰胺硫酸酯盐的润湿性能进行了系统研究，用帆布沉降法测定了MMS在不同温度、不同质量分数溶液、不同硬水度中的润湿性能，并与其他表面活性剂十二烷基硫酸酯盐、月桂醇醚硫酸酯盐、十二烷基苯磺酸盐进行了比较。

The results indicate that PESA has excellent inhibitive effects to the poor solubility scales such as barium sulfate, calcium sulfate, strontium sulfate and to the calcium carbonate scale is normal.

研究了PESA在油田用水中的阻垢效果，结果表明，PESA对常遇到的硫酸钡、硫酸锶、硫酸钙类难溶垢有着优异的阻垢效果，对碳酸钙也有较好效果。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。