查询词典 pyrrhotite

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。

Applied to particle size 3mm below the magnetite, pyrrhotite, roasted ore, ilmenite and other materials wet magnetic separation, but also for coal, non-metallic minerals, building materials and other materials in addition to iron operation.

适用于粒度3mm 以下的磁铁矿、磁黄铁矿、焙烧矿、钛铁矿等物料的湿式磁选，也用于煤、非金属矿、建材等物料的除作业。

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

Jamesonite, marmatite, pyrrhotite and pyrite are the complicated and mutiple-metal sulfide resources to process difficultly in Dachang Mine. Research on the basic theory of flotation electrochemistry and on potential-controlled flotation technology of the sulfide resources can be helpful to develop some new flotation theory and technology of the complicated and mutiple-metal sulfides, and to utilizate comprehensively the mineral resources, and to lower their production cost, and to improve the economical benefits. It is of important theoretical and practical significance.

脆硫锑铅矿、铁闪锌矿、磁黄铁矿、黄铁矿是大厂特有的难分离、难处理的复杂多金属硫化矿物资源，对其进行浮选电化学的基础理论和电位调控浮选技术研究，可发展复杂多金属硫化矿物浮选分离理论，形成复杂多金属硫化矿物浮选分离的创新技术，加强矿产资源的综合利用，降低成本，提高经济效益，具有重要理论意义和现实意义。

Magnetic separator for particle size below 3mm magnetite, pyrrhotite, roasted ore, ilmenite and other materials wet magnetic separation, but also for coal, non-metallic minerals, building materials and other materials in addition to iron operation.

磁选机适用于粒度3mm以下的磁铁矿、磁黄铁矿、焙烧矿、钛铁矿等物料的湿式磁选，也用于煤、非金属矿、建材等物料的除铁作业。

The effects, such as the acidity of leaching system, the temperature and the concentration of the sodium chloride, on oxidation and leaching of copper-bearing gold ores were analyzed. The results show that the sequence of sulfide ores oxidized and dissolved are pyrrhotite firstly, sulphide secondly, then chalcopyrite, pyrite lastly.

结果表明：硫化矿的氧化溶解首先是磁黄铁矿，其次是铜的次生硫化矿，再次是黄铜矿，最后是黄铁矿；载金黄铜矿的氧化首先是铁从黄铜矿的晶格中氧化溶解出来，生成中间产物CuS2和CuS；较高的酸度和氯化钠浓度有利于单质硫的生成、三价铁的水解和铜的浸出，进而有利于金浸出率的提高。

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。

At present,the rate laws and reaction mechanisms of pyrite oxidation,pyrite and chalcopyrite formation,uraninite and magnetite dissolution in aqueous solutions are mainly studied,and it is discovered that (1)oxidation rate of pyrite controlled by surface reaction assume fractional dependence on Fe3+ and O2 molalities in acid solutions;(2)Pyrite cannot nucleate directly from solutions below 300 ℃,it can only form initially through sulfidation of a FeS precursor. The rate equation of reaction between FeS and H2S to form pyrite is of the second order;(3)Chalcopyrite is formed by reactions of pyrrhotite or pyrite with Cu2+,the former proceeds via a series of mediate metastable phases of Cu-Fe sulfide,whereas the rate equation of the latter is apparently of the first order which is controlled by surface reaction;(4)The nonlinear behavior of magnetite dissolution at acid pH can be represented by a shrinking core model coupling with surface reaction and diffusion transport.

目前主要研究了水溶液中黄铁矿氧化、黄铁矿和黄铜矿形成、晶质铀矿和磁铁矿溶解的速率定律和反应机理，发现：(1)酸性溶液中黄铁矿的氧化速率对Fe3+和O2浓度呈分数依赖并受表面反应的控制；(2)低于300 ℃时黄铁矿不能从溶液中直接成核，而需初始地通过FeS先驱物的硫化生成，FeS与H2S反应形成黄铁矿的速率方程为二级；(3)磁黄铁矿或黄铁矿与Cu2+反应均可形成黄铜矿，前者经历了一系列准稳的Cu-Fe硫化物的中间物，后者的速率方程为表观一级并受表面反应的控制；(4)酸性pH时磁铁矿的非线性溶解行为可采用表面反应扩散输运耦合的收缩核模型来描述。

Arsenopyrite, pyrite, chalcopyrite, marcasite, pyrrhotite, sphalerite, galena and boulangerite are the main metal minerals, while the gangue minerals are dominated by quartz, fluorite and calcite.

在野外调研基础上，对主要脉石矿物石英、萤石中流体包裹体进行了包裹体岩相学、显微测温分析和包裹体中气液相成分的LRM分析。

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