查询词典 ferrate

A method for the determination of potassium ferrate based on the oxidation of chromite was introduced in this paper.

以亚铬酸盐氧化还原反应为基础建立了高铁酸钾的滴定分析方法。

Using silicon iron as anode to preparation sodium ferrate in non-diaphragm electrobath.

利用含铁材料为阳极，铜为阴极，NaOH溶液为电解液，于隔膜电解槽中电解制备高铁酸钠。

Preparation of potassium ferrate and its application in water treatment are studied in this paper.

本论文主要研究了高铁酸钾的合成及其应用于水处理的效果。

Based on that the instability of ferrate, fresh ferrate prepared by electrolysis was released directly to treat wastewater.

针对高铁酸盐难以长时间稳定存在的特点，实验用电解新制的高铁酸盐直接投加进行废水处理。

The results indicated that the rate of potassium ferrate removing aniline depends on the value of pH, potassium ferrate concentration, and reacting time.

结果表明，高铁酸钾对苯胺具有比较好的去除作用，但受高铁酸钾的投加量、反应时间、体系的pH、苯胺初始浓度等的影响，其最佳反应时间为30min，pH=

Then studied on several clays affect on the stability of ferrate solution. The results show the addition of clays retarded the decomposition of ferrate in alkaline solution. Through analysed the results of test, we found this due to the silicium or polysilicium of clays and its increasing stabilizing effect on ferrate when the concentration of silicium or polysilicium increases.

接着作了粘土对高铁酸盐溶液的稳定作用的研究，结果表明粘土对高铁酸盐溶液有良好的稳定作用，通过实验分析得到其稳定作用是由于粘土中溶出的硅酸根或多聚硅酸根所致，且随着其浓度的增加对高铁酸盐的稳定作用增强。

The experimental results showed that the existence of ultrasound could decrease the formation potential of ferrate and the passivation extent of iron anode, as well as O_2 evolution rate, which led to higher current efficiency for the direct electrosynthesis of solid ferrate at 65℃in 14 mol/dm~3 KOH solution.

通过对超声波对纯铁电极电化学行为影响的研究表明，超声波能加快电极表面上的固体K_2FeO_4向本体溶液中的转移和延缓电极表面的钝化，还能减慢O_2析出的速度，这可能就是超声波作用能够提高固体K_2FeO_4生成的电流效率的原因。

In this paper, the preparations, analytical methods, physical characteristics of ferrates and the application of ferrates in the fields of synthesis of organic compounds, treatment of waste water and the usage as cathode material in alkaline batteries are summarized. The electrochemical preparation of sodium ferrate is described and the relationships between the main parameters in the process are deeply investigated. One method of in-situ electrosynthesizing potassium ferrate of high purity with both high efficiency and low energy consumption is invented. The cyclic voltammogram and feature characterization of iron anode in alkaline solutions is studied. One preparation method of ex-situ electrosynthesizing tripotassium sodium ferrate of high purity is created.

本文概述了高铁化合物的制备方法、分析方法、物理化学性质及其在氧化合成有机物、水处理和用作碱性电池正极材料等领域的应用；深入系统地研究了高铁酸钠的电化学制备及其影响参数之间的关系；研发了一种高效率低能耗直接电合成高纯度高铁酸钾的工艺方法；探讨了铁电极在浓的苛性碱溶液中的循环伏安特征及其极化特征；研发了一种电化学制备高铁酸三钾钠的工艺方法并用多种现代分析测试技术对K_3Na(FeO_4，)_2进行了表征。

A comparison of the degradation effectiveness of PVA by potassium ferrate, sodium hypo-chlorite and combination of them was studied. The effects of potassium ferrate and sodium hypochlorite dosage, oxidation time, initial concentration of PVA and pH on removal rate of PVA were explored.

文章比较了高铁酸钾、次氯酸钠、高铁酸钾与次氯酸钠联用对PVA的降解效果，考察了高铁酸钾和次氯酸钠的投加量、氧化时问、PVA溶液的pH值和初始质量浓度对PVA去除率的影响。

The results show that the degradation effectiveness of PVA was optimum when potassium ferrate and sodium hypochlorite were jointly used as the oxidative agent. The removal rate of PVA and COD was more than 98% and 40% under the conditions that the concentration of PVA was 3.0 g/L and the pH value was 7.2, the dosage of potassium ferrate and sodium hypo chlorite were 0.32 g/L and 3.92 g/L, and the reaction time was 50 min. In the process of united oxidative degradation, the chain of PVA was cut off and many low molecular weight compounds were formed. The main degradation products were carboxyl compounds.

结果表明，用高铁酸钾与次氯酸钠联合氧化PVA时，降解效果最佳；在3.0 g/L，pH值为7.2的PVA溶液中，当高铁酸钾与次氯酸钠的投加量分别为0.32 g/L、3.92 g/L，反应时间为50 min时，PVA的去除率大于98%，COD去除率大于40%；在联合氧化降解过程中，PVA断链成小分子物质，最终降解产物主要为羧基化合物。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷