查询词典 sulphate paper

This paper described the status of purification technology of zinc sulphate solution in China,analyzed the existing problems,and also discussed the developing direction of this technology.

介绍了国内硫酸锌溶液净化技术的现状，分析了存在的问题，指出了该技术的发展方向。

In this paper uranyl sulphate species adsorbed on quaternary ammonium resin are studied with infrared spectrometry.

本文用红外光谱研究了季铵树脂吸附的硫酸铀酰络合物。

In the paper, some factors influencing the effect of reduction including the anodic material, the cathodal material, the area ratio of cathode to anode and the kind of electrolyte have been investigated and screened out. The result showed that under the same reduction conditions, the reduction of Cr6+ has better effect to use lead-antimony alloy as anode, iron plate as cathode, which area ratio is 7:1 and potassium sulphate as electrolyte.

本文首先对影响电解还原效果的阳极材料、阴极材料、阴阳极面积比和支持电解质加入的种类等因素进行了研究筛选，结果表明：在同样电解还原条件下，实验中阳极采用铅-锑合金，阴极采用铁板，阴阳极面积比取7∶1，支持电解质取为硫酸钾时，具有较好的Cr~(6+)还原效果；同时在采用铅-锑合金作阳极的条件下，通过正交实验，对影响直接在碱性介质中电解还原低浓度含铬废水的其他因素进行了研究，即研究了在电化学还原过程中，Cr~(6+)的初始浓度、极板间距、支持电解质的加入量、搅拌情况等因素对还原效果的影响程度，确定出了主要的影响因素。

In this paper, the nanometer Co-Cu-B alloy powders had been prepared in solution of mixing cupric and cobaltous sulphate, by liquid reduction process, on the condition of pure water and the ethanol-water system, using KBH4 as a reducer, PVP as a dispersant.

本研究采用液相还原法，以KBH4作还原剂，PVP作分散剂，分别在二价钴、铜硫酸盐的纯水体系和乙醇-水体系下合成了纳米Co-Cu-B合金粉末。

Consists of pinted or unprinted sheets,shavings,guillotined books,quire waste,and cuttigs of white sulphite or sulphate ledger,bond,writing paper,and all other papers which have a similar fiber and filler content.

用漂白亚硫酸盐浆或漂白硫酸盐浆制得的账簿纸，证券纸和书写纸等的边角料，以及切开的书籍，整刀废纸，带有印刷油墨或没有印刷油墨的整张纸和纸边等，也包括以同类浆种和填料含量制得的所有其他纸张。

The paper describes bauxite positive flotation desilication process and the agglomeration mechanism of sulphuric acid and aluminum sulphate.

介绍了铝土矿正浮选脱硅生产工艺流程，阐述了硫酸和硫酸铝的团聚机理，通过工业对比试验，证明了在精矿脱水工艺中应用硫酸比硫酸铝具有更优越的技术经济效果。

In this paper,the method for measuring water soluble Sulphate in soil by Barium Chromate Spectrophotometry is discussed as well as the experiment conditions about the rate of water soil and vibration time.

介绍铬酸钡分光光度法测定土壤中水溶性硫酸盐的分析方法，并讨论了水土比、振荡时间等实验条件。

In this paper, cuprous chloride was prepared by sulfite-reduction method with copper sulphate,which was obtained from copper-containing plating wastewater treatment.

研究了利用处理含铜电镀废水得到的硫酸铜，采用亚硫酸盐还原法制备氯化亚铜。

Add 100-150g of finely crushed ice and stir until the m-nitroaniline has been converted into the sulphate and a homogeneous paste results. Cool to 0-5°C by immersion of the beaker in a freezing mixture, stir mechanically and add a cold solution of 18g(0.26mol) of sodium nitrite in 40 ml of water over a period of 10 minutes until a permanent colour is immediately given to potassium iodide-starch paper: do not allow the temperature to rise above 5-7°C during the diazotisation.

加入100-150g碎冰，搅拌至m-硝基苯胺成硫酸盐，把烧杯浸入到冷冻液中冷却到0-5°C，机械搅拌下于 10 min内加亚硝酸钠冷溶液（由18g(0.26mol)亚硝酸钠和40 ml 水组成），直到用淀粉-碘化钾试纸测试时，能使该试纸立即显色且不褪色：在重氮化反应时不允许温度超过5-7°C。

In this paper,the phase diagram of the aqueous solution system of potassium chloride and ammonium sulphate is calculated,analyzed and compared with that of such aqueous solution system into which certain amount of methanol is added,and the yield of the reaction is caculated.

硫酸钾是一种优质无氯钾肥，由氯化钾与硫酸铵复分解制备硫酸钾是十分重要的生产方法之一，其反应可表示为2KCl+(NH4)2SO4=K2SO4+2NH4Cl该反应氯化钾转化成硫酸钾的转化率受到各组分在体系中的溶解度限制而较低[1，2]。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。