浮选

Aiming at the structure characteristics of direct ejection type air-bubble sparger, the article analyzed the hydrodynamics model of the air ejecting outflow of the air-bubble sparger.

针对空气直接喷射式气泡发生器结构特点，分析了气泡发生器气体喷射出流的流体动力学模型，通过试验室和工业型浮选柱的清水气泡发生试验，修正了气泡喷射出流理论计算公式，对工业型浮选柱的大型化研制提供一定的理论依据。

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。

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。。

An attempt was made to apply the method of statistical analysis to research in the flotation of wolframite.

本文尝试用统计分析的方法，综合研究了影响黑钨矿浮选的六个主要工艺因素：(1)粒度；(2)浮选气泡产生方式；(3)矿浆pH值；(4)起泡剂用量；(5)矿物是否预先经酸处理；(6)矿浆温度。

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。

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。

It combined the slime feature in Wangzhuang Coal Mine and analyzed the effect of this columned pneumatic flotation machine.

简要介绍了旋流—微泡浮选柱的工作原理，结合王庄煤矿的煤泥性质，分析了该浮选柱在王庄煤矿选煤厂的应用实践及效果。

The IR spectra of wastewater simulated with two typical fatty amine flotation collectors of decyl propyl ether amine and stearylamine were studied and the mechanism of degradation of fatty amine flotation collectors by the UV/H2O2/air oxidation method was discussed.

测定了十二烷基丙基醚胺和十八胺两种典型脂肪胺浮选捕收剂模拟废水降解前后的红外吸收谱图，初步探讨了UV/H2O2/air光化学氧化法处理脂肪胺浮选捕收剂模拟废水的降解机理。

Deink's main process includes:(1) under alkaline conditions waster make ink and fibre separation;(2) ink in flotation cells has been floation out.

脱墨的次要历程包含：(1)碱性前提下废纸碎解使油墨与纤维不合离；(2)油墨在浮选槽洋被浮选不入去。

Mechanism of BK501A in desiliconization from bauxite was studied by use of flotation test,flocculation test,EDS,ζ-potential,IR.

通过浮选试验、絮凝试验、动电位和红外光谱测定，详细考察了抑制剂BK501A在一水硬铝石与高岭石反浮选分离中的作用效果和机理。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。