方铅矿

方铅矿中类质同像银的研究及EPR分析

EPR Analysis and Study on Isomorphic Silver in Galena

采用电感耦合等离子体原子发射光谱法（ICP-AES）进行方铅矿中多元素同时测定。

A method for simultaneous determination of multi elements in galena by inductively coupled plasma atomic emission spectrometry ( ICP-AES ) was studied .

方铅矿的热电导型单一，均为N（电子）型，并且具有较大的热电系数绝对值。

Thermal electricity type is simple N type with large thermal electricity ratio absolute value .

天然PbS（方铅矿）的远红外反射光谱

Study on far-infrared reflection spectra of natural PBS

表面黄药的选择性解吸和PAS的亲水造成了方铅矿的抑制；

The depression of galena iscaused by the desorption of xanthate and the hydrophilicity of PAS .

Nocardia在黄铁矿和方铅矿表面的选择性吸附

Selective adsorption of Nocardia on surface of pyrite and galena

熔融制样法对硫铁矿、铜精矿和方铅矿主量元素的XRF光谱测定

X-ray fluorescent spectrum determination of main elements in samples of copper concentrate troilite , galena prepared by smelting method

结果表明，P型半导体（以黄铁矿为典型代表）具有良好硫化钠诱导浮选行为，N型半导体（以方铅矿为典型代表）具有良好自诱导浮选行为。

The results have shown that the P-type semiconductor ( pyrite as a typical one ) displayed a good Na2S-induced flotation behavior , but the N-type one ( galena as a typical one ) a good self-induced flotation behavior .

本文论述了羧甲基纤维素钠（CMC）在浮选分离闪锌矿和方铅矿中的作用及对润湿性的影响。试验证明，CMC同时抑制未经金属阳离子活化的闪锌矿和方铅矿；

In this paper , the effect of sodium carboxymethyl cellulose ( CMC ) on flotation separation and wettability of galena and sphalerite is described .

结果表明：Nocardia在黄铁矿和方铅矿表面可发生明显的选择性吸附，在黄铁矿表面的最大吸附率为96.99%；

The results show that selective adsorption of Nocardia on the surface of pyrite and galen is obvious .

与Pb、Zn金属一起迁移而来的Cd、Ge、Ga等分散元素在有利的物化条件下便以类质同象的方式替代相应离子而进入闪锌矿、方铅矿的晶格并逐渐富集成矿。

Under favorable physico-chemical conditions , dispersed elements such as Cd , Ge , and Ga that were co-transported with Pb and Zn may have replaced corresponding ions and accumulated as the mode of isomorphism .

与U密切伴生的元素有Fe、Se、Pb、Si、Ti、Cr、S等，与铀矿物伴生的矿物组合有黄铁矿、方铅矿、钛铀矿以及与其关系密切的硒矿化；

The elements associated intimately with uranium are Fe , Se , Pb , Si , Ti , Cr and S and the mineral assemblage of uranium includes pyrite , galena , brannerite and its closely related selenium mineralization .

本文通过测定以EDTA-NH4OH-H2O2为溶剂浸取方铅矿时滤液中硫的存在状态，从而确认方铅矿中类质同象银不能定量回收的原因，是由于生成了硫化银沉淀。

By determinating sulphur species in the filtrate after soaking galena in EDTA-NH_4OH-H_2O_2solution , it is recognized that the reason why the isomorphic silver in galena cannot be recovered is due to the formation of silver sulfide precipitate .

试样的SEM二次电子图象表明，因液态Pb与固态方铅矿间的界面张力很大，反应过程中在方铅矿表面难以形成Pb的液膜。

Because of the fairly large interface tension between the solid galena and the liquid Pb , the SEM second electron images showed that the liquid Pb film is difficult to be formed on the unreacted galena surface in reaction process .

本文通过半经验分子轨道法（CNDO／2）计算，得到了方铅矿和黄铁矿表面的电子结构、原子净电荷密度和前线分子轨道能量。

The surface electron structures on the surfaces of galena and pyrite , net charge density of atom and energy of frontier molecular orbital were obtained using CNDO / 2 calculation .

Bi和Sb在方铅矿中替代Pb时，方铅矿晶格有缺位，这一晶体化学特征可解释在方铅矿中Ag与Bi、Sb含量间不一定呈正相关。

Elements Bi and Sb substitute for element Pb in galena . So there must be some defect in the crystal lattice of galena . By means of this crystal-chemical characteristic , it is shown that the Ag-content is not directly proportional to the content of Bi and Sb .

利用电化学测试方法（Tafel曲线、交流阻抗法）研究了方铅矿矿物表面的腐蚀钝化行为，结果表明，PbCO3钝化膜的形成，导致矿物表面电阻增加，反应电流减小，浸出率降低。

Surface corrosion and passivation behaviors of galena are investigated by electrochemical techniques . Tafel and EIS spectrum demonstrate that formation of PbCO_3 passivation film on the surface of galena results in increasing of galena surface resistance and decreasing of reaction current and leaching rate of galena .

矿床原生矿体中的硫化物均富集重硫，其δ34S值集中于13‰～17‰之间，且有δ34S黄铁矿>δ34S闪锌矿>δ34S方铅矿，表明成矿流体的硫已达到平衡；

The primary sulfides are enriched in heavy sulfur and the values of δ 34S are concentrated in the range of 13 ‰ to 17 ‰ . δ 34S pyrite > δ 34S sphalerite > δ 34S galena indicates that sulfur isotopes in ore-forming fluid have reached equilibrium .

硝酸酸解方铅矿生产铅产品的湿法开发研究

Wet-production of Lead from Galena by the Hydrolysis with Nitric Acid

由方铅矿精矿直接制备硫酸铅粉末材料的方法

Method of direct preparation of lead sulfate powders from galena concentrates

通电电化学预处理方铅矿的浮选电化学分析法；

FLOTATION OF GALENA PRETREATED BY ELECTROCHEMICAL METHOD electrochemical analysis ;

黄铜矿-方铅矿浮选分离的电化学研究

An electrochemical study on flotation separation of chalcopyrite from galena

黄铁矿、闪锌矿及方铅矿为矿石中的主要金属矿物。

Major metal min-erals in ore are pyrite , sphalerite and galena .

主要矿石矿物为闪锌矿、方铅矿、黄铁矿。

The main ore minerals aresphalerite , galena and pyrite .

用方铅矿精矿直接湿法制备电池材料硫酸铅

Preparation of PbSO_4 Used as Lead-Acid Batteries From Galena Concentrate

方铅矿单矿物中银的物相分析新方法

A New Method for the Phase Analysis of Silver in Monomineral Galena

方铅矿中晶格银的电子顺磁共振波谱研究

Electron paramagnetic resonance study of crystal lattice silver in galena

方铅矿氧化过程中温度和氧化物浓度的影响研究

Effect of Temperature and Oxide Concentration in Galena Oxidation Process

硫化物亚期细分为石英闪锌矿黄铁矿阶段与方铅矿闪锌矿白铁矿方解石石英阶段。

The sulfides sub-period is broken down into quartz-sphalerite-pyrite and galena-sphalerite-marcasite-calcite-quartz stage .

方铅矿直接转化为铅盐新工艺的研究

Study on the new technology of galena directly transferring to lead salt