磁黄铁矿

On the base of optimization on float agents and rebuilt of flow process,the easy-floating gangue and pyrrhotite is constrained efficiently,and the burden of circulation is also reduced,So the indicators is improved in all aspects,the rate of copper in concentrate reaches over 20%.

通过对浮选药剂条件的优化及部分流程结构的攻关改造，有效地抑制了易浮脉石矿物和磁黄铁矿的上浮，减少了中矿的循环量，工艺指标得到全面的提高，铜精矿品位达到20%以上，选铜回收率达到85%以上。

On the base of optimization on float agent s and rebuilt of flow process,the easy-floating gangue and pyrrhotite is constrained efficiently,and the burden of circulation is also reduced,So the indicators is improved in all aspects,the rate of copper in concentrate reaches over 20%.

通过对浮选药剂条件的优化及部分流程结构的攻关改造，有效地抑制了易浮脉石矿物和磁黄铁矿的上浮，减少了中矿的循环量，工艺指标得到全面的提高，铜精矿品位达到20%以上，选铜回收率达到85%以上。

High sulfur iron ore ; Pyrrhotite ; Combined activator NC ; New type collector DY ; Sulfur reduction

高硫铁矿石；磁黄铁矿；组合活化剂NC ；新型捕收剂DY ；降硫

The analysis by XRD spectrum discriminate that the magnetite, Haematite, pyrrhotite and quartz from samples are found at site6 of adjacent to steel-making furnace, supporting the conclusions from magnetic measurements.

与石英相比，磁铁矿、赤铁矿和磁黄铁矿含量的强度较弱，这与前文中提及的气溶胶浓度与主要反映亚铁磁性矿物的磁性参数呈弱负相关的结论是相符的。

Cu~2+ can activate marmatite . Eh of pulp has great effect on the buoyancy of them. New inhibition regeants named CSU-1 can inhibitmarmatite buoyancy. In high pH value and low Eh, use lot of calcareousness, marmatite can separated from pyrrhppite easily in their concentrate mixture.

少量的Cu~(2+)可强烈地活化铁闪锌矿；矿浆电位对三种矿物的浮选有明显的影响；新型抑制剂CSU-1可有效地抑制铁闪锌矿；采用高石灰用量、高pH矿浆和低电位环境，实现混合精矿中铁闪锌矿与磁黄铁矿的分离。

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。

Experiment about flotation characteristics of amesonite, marmatite and pyrrhppite are done. According to the result, we can select suitable collection and reagents to inhibit iron minerals .for the separation of lead Zinc minerals Small-scale experiments of flotation separation of lead and antimony minerals .

采集了脆硫锑铅矿、铁闪锌矿、磁黄铁矿等纯矿样，进行了这些纯矿物的一系列浮选性能试验，并以纯矿物的试验初步筛选铅锌浮选分离的组合捕收剂、硫化铁矿的抑制剂。

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。

Through examinating technological process and researching technical mineralogy of Jinqu cyaniding workshop, the main reasons which reduced gold recovery rate were discovered, which were associated tellurium minerals and the pyrrhotite influence.

通过时金渠金矿氰化车间流程考查和工艺矿物学研究，找出了回收率低的主要原因是伴生碲矿物及磁黄铁矿的影响。

119Sn and 57Fe Mossbauer analyses of the liquefaction residues have led to explanation of these observations in terms of the formation of elemental tin in low-sulphur coal and pyrrhotlte, Fe0.92S, in high-sulphur coal.

对液化余渣的穆斯堡尔分析的结果，使我们可以用低硫煤中元素态锡的形成以及在高硫煤中磁黄铁矿（Fe_(0.92)S）的形成来对观察到的现象作出解释。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了