查询词典 sulphuric acid

The experimental result shows that under the condition of lixiviating time being 2.5~3 hours, lixiviating temperature being 110℃, sulphuric acid thickness being 6 mol/L, hydrochloric acid thickness being 3 mol/L, liquid-to-solid quality ratio being 4∶1, the extraction rate of iron will reach 95.7%~96.3% in mass fraction.

丁文武 淮海工学院，连云港 222005通过正交实验研究了用盐酸、硫酸、褐铁矿和硅酸钠制备聚硅氯化硫酸铁絮凝剂的工艺条件。实验结果表明，浸取时间为2.5～3 h，浸取温度为110℃，硫酸浓度为6 mol/L，盐酸浓度为3 mol/L，质量液固比为4∶1，铁的浸出率可达95.7%～96.3%。

In the second part, we discuss the mechanism and factors of deposit-tion forming. The factors are temperature, rate of titrating the sulphurc acid, rate of stiring, consistency of sulphuric acid and consistency of sodium hydroxide.

接下来本文探讨了沉淀的形成机理和沉淀形成时影响沉淀纯度的因素，并确定了碱减量废水中回收对苯二甲酸的影响因素为温度、加酸速度、搅拌、加入的酸浓度、废水的碱度。

During the Great Proletarian Cultural Revolution, a "three-in-one" combination research group was organized from the workers, which formed the main-force, cadres and technical staffs of Silicen-Steel Sheet Works, Metallurgical Designing Institute and a research institute, for the recovery of sulphuric acid from the waste acid liquor of the steel works.

在无产阶级文化大革命中，由上海矽钢片厂、上海冶金设计院及中国科学院上海有机化学研究所组成的以工人为主体的工人、干部、科技人员三结合试验小组，对硅钢片酸洗废液通过用S-203强碱性阴离子交换膜扩散渗析法进行硫酸的回收，既节约物资，又改善环境，获得了较为满意的结果。

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。

In the process of ion exchange membrane electrodialysis with three compartments, sodium lactate was converted into lactic acid and sodium sulphate was obtained by adding sulphuric acid.

在离子交换膜电渗析从乳酸钠制备乳酸中，利用三室的电渗析器在外加硫酸的条件下将乳酸钠转化为乳酸，同时得到硫酸钠。

Technical parameters application ＊ egg and milk products including rich fat milk powder,cocoa milk powder, milk powder,eggwhiteetc.＊ food and plant juice including oats,chickenjuice,coffee,speedy dissolving tea,flavorign,protein,bean,peanut protein,protein solution etc.＊ sugar series including corn syrup,com starch,amylaceum,pectin barley sugear,pltassium sorbate etc.＊ pharmaceutical products including chinese medicine extract,pharmiglucin,vitamin,antibiltie,amylase,lipase,protease etc.＊ plastic resins including ab,abs emulsion,pollopas,phenolic resin,,melamac,polyethylene,pvc etc.＊ detergents including normal,high grade washing powder,soap power,soda ash,emulsifier,brightener,phlphoric agent etc.＊ chemical products including sodiumfluoride,basis dye/colour,dye intermediate,compoumd fertilizer,catalyzer,sulphuric agent,amino acid and white carbon etc.＊ ceramics including aluminum oxide,ceramic tile material,magnesium oxide,speckstone etc.＊ others including aluminum hydroside,calcium chloride,staric acid agent etc.

料液桶d皿mof，awmatehalliquid 应用食品工业蛋奶制品富脂奶粉、胳肮，可可奶粉、代乳粉、蛋清等食物及植物汁燕麦鸡汁，咖啡，速溶茶，调味香料肉，蛋白质，大豆，花生蛋白质、蛋白质水解物等糖类玉米浆、玉米淀粉，葡萄糖，果胶、麦牙糖，山梨酸钾等化学工业氟化钠、碱性染料颜料、染料中间体、复合肥、甲茎硅酸、催化剂、硫酸剂、氨基酸、白碳黑等医药用品中药浸膏、药胶、酵母、维生素、抗生素、淀粉酶、脂肪酶、蛋白酶等塑料树脂 ab、abs乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氯乙烯等洗涤剂高级洗衣粉，普通洗衣粉、肥皂粉、苏打粉、乳化剂、增白剂、磷酸剂等陶瓷氧化铝、态砖材料、氧化镁、滑石等其它氢氧化铝、氯化钙、硬脂酸剂等冷却喷雾技术参数

The main research work of this dissertation is as follows: Based on the chemical reaction engineering theory and the nitrobenzene electroreduction mechanism, the plate and frame electrolyzer was designed and applied to the process of electroreduction nitrobenzene to p-aminophenol. This dissertation measured the residence time distribution data of the electrolyzer by means of the pulse response method and studied the rule of flow pattern along with the current capacity change. Under different conditions ,this dissertation studied the cyclic voltammetry properties of nitrobenzene on different electrodes by means of the dynamic cyclic voltammetry method and the electrode materials applied to the NB electroreduction have been selected primarily.Baseed on the results of cyclic voltammetry tests, this dissertation used p-electrode systems to measure the steady-state- polarization curves of nitrobenzene on different electrodes in H-type diaphragm cell, and obtained each primary factor s influence rule and the exchange current density value of each electrode.And then on the basis of the conclusions of fundamental researchs upword, the effects of influence factors on the the yield of p-aminophenol and the current efficiency,such as electrode material, current density, quantity of electricity circulated, nitrobenzene concentration . sulpuric acid concentration and so on, have been studied in detail in the systems of hign temperature , strong acidity and oxygen-poorthrough a series of electrolysis experiments in this paper.After all using Pb as anode Monel metal as cathode Dupont Nafion 417 cation-exchange membrane as membrane, this dissertation obtained the optimum technological condition: reaction temperature about 85C, current density 500A m-2, sulphuric acid concentration 20%wt.

论文的主要研究工作为：运用化学反应工程理论，结合硝基苯的电还原机理，设计出用于硝基苯直接电还原合成对氨基苯酚实验的板框式电解槽，并利用脉冲响应法测定了该板框式电解槽的停留时间分布数据，研究了流型随流量变化的规律；通过动态循环伏安法研究了硝基苯在不同电极上、不同条件下的循环伏安特性，初步评选出了用于硝基苯电还原的电极材料；结合循环伏安的测定结果，在H型隔膜电解槽中采用三电极体系测定了硝基苯在不同电极上、不同条件下的稳态极化曲线，得到了各主要因素的影响规律及硝基苯在各个电极上电还原的交换电流密度数值；在基础研究结论指导下，采用板框式电解槽，在高温、强酸、贫氧系统中，进行了一系列的电解实验，分别考察了电极材料、电流密度、通电量、硝基苯浓度、硫酸浓度等因素对收率及电流效率的影响，最终选择以蒙乃尔合金电极作为阴极、铅合金为阳极、Dupont Nofion 417阳离子交换膜为隔膜，得到由硝基苯直接电还原制对氨基苯酚的最佳电解工艺条件：反应温度85℃，电流密度500A·m~(-2)，硫酸浓度20％wt。

Glucose, formic acid and levulinic acid were not detected in the liquors of acid hydrolysis and the concentration of xylose and arabinose was high, while the acetic acid was low. The mixture of monosaccharides and fatty acid was efficiently separated and the whole process of separation was finished within 23 minutes.

通过对样品的分析表明，麦糟水解液中不含有葡萄糖、甲酸及乙酰丙酸，木糖和阿拉伯糖的质量浓度比较高，乙酸的质量浓度比较低，单糖及脂肪酸的混合液得到很好的分离，分离过程在23min内完成。

PVC resin, PTFE resin, fumaric acid, anthraquinone, nitroanthraquinone, paraaminophenol, melamine, cyanuric acid, sulfanilic acid, chemical inhibitor 168, azoic coupling component As, stearate, aniline, nitroaniline, pentaerythritol, chlorcosane, sodium calcium, triethylene diamine, sodium benzene sulphinate, m-phthalic acid, thiourea, aniline black dyestuffs, acid dyestuff, etc.

聚氯乙烯树脂、聚四氟乙烯树脂、反丁烯二酸、蒽醌、硝基蒽醌、对氨基苯酚、三聚氰胺、氰尿酸、对氨基苯磺酸、抗氧剂168、色酚As、硬脂酸盐、苯胺、硝基苯胺、双季戊四醇、氯？？？腊、甲酸钙、三乙烯二胺、苯亚磺酸钠、间苯二甲酸、二甲酯五磺酸钠、硫脲、油溶性苯胺黑染料、酸性黑染料等有机化工原料和中间体。

It includes determination of properties of the acid protease and lipase, application of acid enzymes to processes of bating pickling pelt and wet blue of sheepskins, analysis of activities of collagenase in acid protease and trypsin. Comparison was conducted to acid bating and common bating. Orthogonal experiments were used to determine influence of some factors in acid bating on qualities of leather. Scanning electronic microscope was used to observe separating of collage fibers.

对酸性蛋白酶、酸性脂肪酶的性能进行了测定；将其用于绵羊服装革生产的酸性软化及蓝湿皮软化中，利用正交试验法研究了酸性酶软化各因素对成革质量的影响，并与常规酶软化进行了对比；用扫描电镜观察了酸性酶软化后胶原纤维的分散情况；对酸性蛋白酶的分子量进行了测定，对比了酸性蛋白酶与胰酶中的胶原酶活力，以说明酸性酶软化与胰酶软化对胶原性质的影响。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。