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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。

Cation group has the capability of charge neutrality and this would make oily wastewater demulsify and remove oil easily. Hydrophobic group would improve hydrophobic-oleophilic nature of the oil granule. Simultaneously, wetting reversed agent would change wetting performance of oil granule, enhance conglutination capability between air bubble and oil granule. And Frother would form bigger foam layer on the water, so it could prevnt granule with air bubble from rolling downward.Using the hydrophobic polymeric flocculant as one of ingredients for flotation agent formula, the flotation agent has good treatment effect.

浮选剂配方中的疏水性高分子絮凝剂分子链上带有的阳离子基团起到电中和作用，使含油污水易于破乳除油，而疏水基团能增强颗粒的疏水性能；润湿反转剂能改变颗粒的润湿性，增强气泡与颗粒的粘附能力；起泡剂在水面能形成强度较大的泡沫层，起阻止带气絮粒向下翻动的作用。

OPF technology had two main points: one was adjusting and controlling traditional flotation operation factors including pulp pH, type and dosage of collector, flotation time and flow structure etc.; The other was not exerting outside electric field and not adding redox reagents to control electropotential.

这种利用矿浆中固有的电化学行为引起的电位变化，通过调节传统浮选操作因素达到电位调控并改善浮选过程的工艺，我们称之为&原生电位浮选(Originpotential Flotation，OPF)&，以区别于采用外加电极或使用氧化—还原药剂调控电位的电位调控浮选(E1ectropotential Control Flotation，EPCF)技术。

Synergistic Compatibility and Effect and Profit. A new-type and high-efficiency frother had been developed which is now used in the column flotation of MICROCEL flotation column at CaiLi Washery.

根据煤炭浮选的特点，借鉴中医药物配伍理论提出了煤炭浮选起泡剂的复配原则，阐述了煤炭浮选药剂复配的必要性和可行性，最后开发出了适用于MICROCEL大型浮选柱的新型高效低廉的起泡剂JF〓。

RB_3 frother ; Flotation of lead-zinc sulphide ; Pyrite flotation.

RB＿3起泡剂；硫化铅锌矿浮选；黄铁矿浮选

Through thermodynamic calculation and electrochemical analysis of multiple redox reactions on the minerals of galena, sphalerite and pyrite in different system, it could be found that pulp chemical environment in which hydrophobe of collectorless flotation produced was beneficial to reduce collector dosage in existing flotation system; electrochemical analysis on sphalerite had been engaged; and pulp chemical environment of OPF for lead-zinc-iron sulfide minerals and relevant selective measure for collector and modifer were established.

通过对方铅矿、闪锌矿、黄铁矿在水体系、调整剂体系、捕收剂体系中由局部电池造成的多种氧化—还原反应的热力学分析和电化学测试，补充和完善了铅锌铁硫化矿浮选电化学理论。提出了矿物表面无捕收剂疏水体生成的矿浆化学环境有利于降低现有浮选体系中捕收剂用量的观点；成功地进行了闪锌矿的电

With butyl xanthate as a collecter, the flotation behavior of jamesonite, pyrrhotite and marmatite, the depressing effects of small mercapto organic depressant (mercaptoacetic acid, mercaptoethanol ) and the effect of Cu2+ ion on depressing ability of mercapto compound were studied through flotation test and infrared spectrum.

摘 要：通过浮选实验、红外光谱测定，考察了脆硫锑铅矿、磁黄铁矿和铁闪锌矿在丁黄药作用下的浮选行为和巯基类小分子有机抑制剂对三种矿物的抑制效果以及Cu2+离子对巯基化合物抑制效果的影响。

Central South University, Changsha 410083, China）Abstract: The collector and collectorless flotation of marmatite was investigated by flotation tests and FTIR.

摘 要：通过浮选实验和红外光谱测定，考查了铁闪锌矿在无捕收剂或以乙黄药为捕收剂时的浮选行为。

Flotation of the three pure sulfide minerals (named amesonite, marmatite and pyrrhppite) used different regeants, is discussed as to know how the useful part is separated from the ore. The flotation behavior of the three minerals is that in low pH value they have good buoyancy,while in high pH value they have bad buoyancy.

以大厂92号矿石中的脆硫锑铅矿、铁闪锌矿、磁黄铁矿为主要研究对象，研究它们在不同药剂条件下的浮选行为，基本查明了三种矿物浮选行为：在酸性条件下，三种矿物均有较好的可浮性；在强碱性介质中，三种矿物的可浮性都变差。

The influence of different collectors on the recovery of gold and silver was studied, and the tests on regrinding and reseparation of middlings, carrier flotation and magnetic flotation were carried out.

探索了不同捕收剂对废渣中铜及金、银回收的影响，进行了中矿再磨再选、载体浮选、磁场强化浮选等工艺方案的试验研究。

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。