查询词典 select flotation

This study examined the numbers and size distribution of stickies from three kinds of PSAs in pulping, post screening and post flotation stream. The results were used to determine the removability of the different stickies through screening and flotation.

参考该标准中的实验条件和检测方法，对不干胶纸所带的3种压敏胶在废纸回用过程中的去除特性，即循环适应性，进行了实验分析，比较了胶黏物在不同处理阶段的分散特点和去除差异，在此基础上，探讨了碎浆、筛选和浮选3个处理单元在胶黏物去除过程中的不同作用和关联影响，并结合 RCA 标准，对该胶黏剂的循环适应性作了分析评定。

In order to increase flotation efficiency and selectivity, the method of pre-ultrasonic processing slime before flotation has been proposed.

为了提高煤泥浮选的效率和选择性，提出了在浮选前对煤泥进行超声波预处理的方法。

The test result which through degrading fatty amine flotation collectors separate by Fenton oxidation, titanium dioxide supported on stilbite photocatalytic oxidation or UV/H2O2/air oxidation method indicates that UV/H2O2/air oxidation method which degradation rate and mineralization degree are very high is the most suitable for degrading fatty amine flotation collectors, and it reacts peaceably, operate simply, consume low energy consumption.

通过Fenton试剂氧化法、辉沸石负载型二氧化钛光催化氧化法和UV/H2O2/air氧化法分别降解脂肪胺浮选捕收剂的试验结果表明，UV/H2O2/air氧化法最适于降解脂肪胺浮选捕收剂，其降解率和矿化程度都很高，且反应条件温和、操作简易、能耗低。

In the industrial test of sylvite flotation,the system helps to fulfill the steady operation of flotation machine and selective targets effectively.

在钾盐浮选的工业试验中，有效地保障了浮选机的稳定运转和选别指标的完成。

Conveyor Machine for the production of 5-80 million tons of coal washery to provide complete sets of equipment, the equipment design reasonable, technologically advanced, simple structure, easy to operate, the high-tech results and with the identification of the ministerial level for the effective use of coal Resources and reduce pollution, according to market my company requires the introduction of advanced U.S. technology, the development of an efficient flotation machine, the device can effectively all the fine coal recovery, to solve the system running rough [0.5 mm the following particles] is not out flotation The problem, and do not have to pretreatment equipment ..

输送机等可为年生产5-80万吨的洗煤厂提供成套设备，该设备设计合理，技术先进，结构简单，操作方便，是高新技术的结果，并同过了部级鉴定，为有效利用煤炭资源，减少污染，我公司根据市场要求引进美国先进技术，开发一种高效浮选机，该设备能有效把细粒精煤全部回收，解决了系统跑粗[0.5mm以下颗粒]浮选不出来的问题，并且不用矿浆预处理设备。。

From the results of IR and XPS spectrocopy. The cationic sol components H〓SiO〓 and 〓 of the solution trend to adsorp on the surface of electronegative aegirine because of electrostatic acctraction each other, and interrupted the collector's reaction with Fe〓 on the surface. Hence the flotation of aegirine was decreased, on the other hand, there is electrostatic repulsion between the surface of hematite and the cationic sol H〓SiO〓.〓, Which has advantage to dispersion of hematite particles, therefore, the hematite flotation is achieved sucessfully with anionic collector.

根据红外光谱和XPS测试结果可知，在弱酸性介质中，活性硅酸胶体抑制剂中荷正电的胶团H〓SiO〓及〓由于电性吸引而选择性地覆盖在荷负电的钠辉石表面，从而阻碍了阴离子捕收剂与表面Fe〓的配位作用，导致钠辉石的浮游被抑制；而赤铁矿表面由于荷正电，与矿浆中的H〓SiO〓、〓等硅酸胶团存在着电性排斥作用，有利于赤铁矿颗粒的稳定分散，所以赤铁矿能够被脂肪酸捕收剂吸附而选择性上浮。

It is the fluorosilicic ion that exsits in the slurry and plays an important role in flotation, fluorosilicic ion not only reacted with Fe〓 on the surface of aegirine to form ionic compound, but also formed stable Si-F bond in Si-O etching reaction. Only ionic compound was obtained when it was attached to hematite surface according to the theories of coordination chemistry, Compared with SiF〓, Fatty acid ion preferentially acts with Fe〓 on the minerals surface, therefore, SiF〓 Can't obstruct the adsorption of collector on the surface of hematite completly, but can reduce the flotation recovery of aegirine selectively.

运用FTIR、XPS等测试方法仔细研究了氟硅酸盐抑制剂对含铁硅酸盐钠辉石的选择性抑制作用机理，氟硅酸盐在弱酸性条件下对赤铁矿浮选的抑制作用很微弱，而对含铁硅酸盐钠辉石强烈抑制，从而扩大了两者之间的浮选差异；SiF〓是矿浆中起抑制作用的主要成分，SiF〓不仅与钠辉石表面的Fe〓形成离子型配合物，而且还与Si-O键形成稳定的Si-F共价键，而与赤铁矿表面只能形成离子型配合物，根据晶体配位场理论，与SiF〓相比较羧酸根离子将优先与矿物表面Fe〓发生配位作用，因此SiF〓的存在并不能完全阻碍捕收剂在赤铁矿表面的吸附作用，却能够选择性地抑制钠辉石的上浮。

Al impurity, the floatabilities of hematite and aegirine were resemble, which is contributed to the existence of structrual iron ion on surfaces of both minerals. It is the structrual iron ion that accelerates the floatability of aegirine greatly and leads to difficult separation with hematite. 2. The basic mechanism of actions of fluorosilicate salts as selective depressants of aegirine during the direct flotation of hematite was investaged detaily by using FTIR and XPS spectrocppy, fluorosilicate salts are poor depressants for hematite, but are very strong depressants for iron-containing silicate such as aegrine in weakly acid medium, which can enlarge the flotation differences between two minerals.

运用X射线衍射、俄歇能谱等测试手段研究了赤铁矿与钠辉石纯矿物的晶体结构特征，表面破裂面的元素组成与赋存状态，发现在白云鄂博不同的矿床（氧化矿段，原生矿段，风化矿段）存在着三种颜色与可浮性均有所差别的钠辉石，其可浮性的差异主要是由于表面含铁量及Ca、Al等杂质含量的不同而引起的，结构Fe〓的存在导致钠辉石可浮性剧增从而与赤铁矿难以分离。

The effects of optimal ratio of reauctants,pH value of flotation,and the kinds,apt amount and mtio of capturer on flotation have been studied.

研究了还原剂最佳组合用量，浮选最佳pH值，捕收剂种类，最佳用量和组合用药对浮选效果的影响。

In the pH range of 6~12, the results of the flotation tests indicate that the performance of the new combined cationic collector (CS3:CS1=3) and (CS3:CS2=2) is similar, and they are effective collectors for reverse flotation of the iron ores. The combined cationic collectors exhibited the same collectability as dodecylamine, but better selectivity than dodecylamine. By using the combined collector, the dosage of the collector decreased from 1 10-4mol/L to 1 x 10-5mol/L .

单矿物可浮性试验结果表明，在pH=6～12的范围内，新型组合药剂CS_3：CS_1=3和CS_3：CS_2=2具有相近的药剂性能，在其捕收能力与十二胺相当的前提下，不但选择性较十二胺好，而且还能显著提高药剂的协同效应，使药量从单用时的1×10~(-4)4mol／L降至1×10~(-5)mol／L，是铁矿石反浮选的高效捕收剂。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。