黄铁矿

不同pH时磷酸盐对黄铁矿氧化的影响

Effects of phosphate salt on pyrite oxidation at different pHs

黄铁矿表面改性产物的XRD谱研究

Study on surface modified products of pyrite by XRD graph

黄铁矿和铁粉对Cr（Ⅵ）的还原作用及其影响因素研究

Study on the Reduction of Cr (ⅵ) by Pyrite 、 Zero-Valent Ion and Their Impact Factors

黄铁矿在酸性溶液中溶解速率相对较快，并易达到溶解平衡。然而，部分由于反应产物形成的难溶物吸附沉积在表面，导致剩余黄铁矿表面Fe（Ⅱ）的溶解速率要缓慢地多。

The dissolution of pyrite in acidic solution was relatively fast and easily reached to dissolution equilibrium .

新型有机抑制剂RC对黄铁矿和磁黄铁矿的抑制作用研究

Research on Depression Mechanism of Pyrite and Pyrrhotite by New Organic Depressant RC

此外，通过黄铁矿电极的循环伏安曲线的测试及X射线光电子能谱分析，研究了外控电位电化学处理黄铁矿浮选的机理。

In the meantime , the mechanism is studied by current-voltage curve testing and X-ray photoelectron energy spectrum analysis .

新型抑制剂RC分离脆硫锑铅矿和磁黄铁矿的研究

Study on Separation of Jamesonite from Pyrrhotite by Using RC as a New Inhibitor

研究了新型有机抑制剂RC在黄铜矿和黄铁矿浮选分离中的作用。

A new type of organic restrainer RC is introduced for separation of pyrite from chalcopyrite .

对黄铁矿及黄铜矿进行了Pb同位素的测定，显示成矿流体中的成矿物质来源于地幔。

Pyrite and chalcopyrite were measured Pb isotopes show that the minerals of ore-forming fluid from the mantle .

超声处理后Ca~（++）在黄铁矿表面作用的XPS分析

XPS Analysis of Ca ~ ( + + ) Effect on Pyrite Surface through Ultrasonic Treatment

浮选药剂BET在煤与黄铁矿表面作用的ESCA分析

ESCA Analysis of Flotation Reagent BET Reaction on Coal and Pyrite Surface

研究区黄铁矿的热电性系数揭示，各矿体的黄铁矿热电性以空穴型（P型）为主，其出现率均在85%以上。

The thermoelectricity coefficient of pyrite in study area reveals that each orebody pyrite thermoelectricity in cavitation model ( P type ) primarily , its emergence rate all in 85 % .

常压热解时，H2和CO下黄铁矿在550℃以下就基本分解完全；而在N2和CH4中，黄铁矿要稳定得多。

The decomposition of pyrite is almost complete at 550 ℃ in H2 and CO , and at 650 ℃ in N2 and CH4 ;

讨论了纳米微粒金与黄铁矿的关系后指出，半导体型黄铁矿有N型和P型两种。

The paper discusses the relation between nanometer sized gold and pyrite , it points out that there are two types of semiconductive pyrite : N pyrite and P pyrite .

Sb，Bi以固溶体混入物形式分布于黄铁矿、毒砂和黝铜矿中；

Sb , Bi occur in tetrahedrite , pyrite , arsenopyrite and marcasite in the form of solid solution mixture ;

随酸性硫酸盐土的剖面发育，黄铁矿的最高含量层、pH值最低层、以及交换性酸和水解性酸的最高含量层都不断向下移动。

The amount of pyrite , exchange and hydrolytic acidity decrease with the development of the soils , and the most acid layer goes downwards in the profile .

因此，含T1黄铁矿利用过程中区域性T1污染的防治已成了一个不容忽视的环境问题。

So the area of Tl prevention and cure become one of a urgent environment problem .

黄铁矿表面及其与Au（HS）2~-溶液作用的STM研究

STM study of the interaction between pyrite surface and au ( hs ) _2 ~ - , solution

黄铁矿表面次生色的变化取决于表面氧化层的厚度及其中Fe（Ⅲ）O组分、单质硫的相对含量。

The secondary surficial color depends on the depth of an oxidized layer and the contents of Fe (ⅲ) O ingredient and native sulfur in the layer .

XRD和FT-IR分析结果表明，油页岩中的矿物质以方解石、石英和黄铁矿为主。

The results by XRD and FT-IR analyses indicate that the major minerals in oil shale are calcite , quartz and pyrite .

岩电实验结果表明：黄铁矿含量增加会导致饱和度指数n值降低，但孔隙胶结指数m值基本不变。

Results of electrical experiment in petrophysics indicate that the increase of pyrite content results in the decrease of saturation index n , but the pore cementation factor m remains steady basically ;

矿浆pH值的变化对矿物可浮性影响较大，两个体系下均是在碱性越强的矿浆中磁黄铁矿的回收率越低，矿浆电位值也随着矿浆pH值增大而降低；

For both systems , the stronger the alkalinity of the pulp , the lower the recovery of pyrrhotite and the pulp potential value was reduced with the increase in pulp pH value .

KMnO4、H2O2、CaCl2几乎都不改变黄铜矿的可浮性，但都能一定程度的抑制黄铁矿。

While KMnO_4 , H_2O_2 and CaCl_2 can hardly change the flotability of chalcopyrite , but they will depress pyrite to a certain extent .

以酸溶出表面镁并除去溶解液后，蛇纹石的等电点pH由11.8下降至6.1，蛇纹石与黄铁矿之间的分散和分离的难度均大大降低。

When magnesium on serpentine surface is removed by acid dissolving , the IEP pH of serpentine drops from 11.8 to 6.1 , and the dispersion and separation between serpentine and pyrite become much easier .

幔型次火山岩主要与黄铁矿型Cu、Pb、Zn多金属矿化有关，属海相火山岩矿床系列。

Subvolcanic rocks of the mantle type related to Cu , Pb and Zn multi-metal mineralization of the pyrite type belong to the series of ore-bearing volcanic rocks of the marine facies .

证明了超声波强化煤炭脱硫降灰作用，是促进Ca（OH）2在黄铁矿表面的吸附，达到进一步抑制黄铁矿的目的。

This proves that the desulfuration and deashing of coal through ultrasonic treatment is to enhance the absorption of Ca ( OH ) 2on the surface of pyrite , and eventually to further depress pyrite .

同时，黄铁矿P型导型出现率由上到下变化很小，成矿环境稳定，显示矿体向下继续延伸。

Meanwhile , the P type pyrite varies very little from top to bottom ( 0 03 % ~ 0 2 % P type per meter ), and the mineralized setting is stable , indicating the downward continuation of the mineral body .

在地下开采中，黄铁矿常温下在空气中极易发生自燃，产生大量的热和SO2，不仅给作业人员带来职业危害，而且可能造成严重的事故。

In underground mining , a large quantity of heat and SO2 gas resulted from spontaneous combustion of pyrite , brings professional harm and even severe accident .

以BET为新型煤炭浮选药剂，用单矿物实验方法，分别对煤、煤系黄铁矿和煤矸石进行脱硫降灰的试验研究，并以煤炭常用浮选药剂GF，FS202作试验对比。

The experimental research of desulphurizing and deashing from coal was carried out using the pure mineral test method and BET , a new reagent for coal floatation .

将浮选精矿和银锰磁选精矿合并，用焙烧黄铁矿产生的SO2和纤维素还原剂进行还原浸出，锰溶于液相中，银在浸出渣中富集；

The manganese in the concentrate of both flotation and magnetic separation was dissolved in a reducing leaching , in which pyrite and some cellulose reductant were used .