大厂100号矿体矿化矿浮选的合理工艺

大厂１００号矿体富含锡、锌、铅、锑、银、铟、镉、金等元素,综合回收价值很高。采用优先混合浮选分离流程处理１００号矿体矿石,可有效回收有价矿物,与两段混合浮选分离流程相比,铅锑精矿中铅、锑品位分别３．２３和０．９６个百分点,铅、锑回收率分别提高１５．８０和１８．０２个百分点,相应银的回收率也较高;在回收率相近的情况下,锌品位和锡品位分别提高３．２０和３．２１个百分点。     

碳包覆锡锑合金纳米纤维的制备及应用

以氧化锡锑纳米颗粒(Sn0.92Sb0.08O2.04)为前驱体,葡萄糖为碳源,用水热合成法制备碳包覆锡锑合金,然后采用静电纺丝技术制备碳包覆Sn Sb/C纳米纤维。应用透射电子显微镜、扫描电子显微镜对碳包覆锡锑合金纳米颗粒及纤维的形貌进行表征,利用X射线衍射仪分析了碳包覆锡锑合金混合纳米纤维的晶型结构。研究了碳包覆Sn Sb/C纳米纤维作为一种高容量锂离子电池负极材料的电化学性能。结果表明,成功制备了碳包覆锡锑合金纳米纤维;随着纳米纤维中碳包覆锡锑合金含量的增加,制备的负极材料具有较高的可逆容量及较好的循环性能。     

锑在正丙醇水溶液中的析相绿色萃取分离和富集研究

在氯化钠存在下,正丙醇水溶液能够分为醇/水两相,在分相过程中,SbCl6-与罗丹明B(RhB)生成的[SbCl6-][RhB+]三元缔合物能被正丙醇相完全萃取。使Sb5+与Ru3+、Ag+、Cr3+、Cu2+、Mg2+、Fe3+、Ni 2+和Co2+完全分离。该法在微量锑的分离和富集分析中有一定的实用价值。     

Low-temperature processing of antimony-implanted silicon

It is shown for the first time that antimony-implanted silicon produces the highest electrical activation (90%) with low resistivity (<200 ohms/square) following low-temperature processing. Thus, annealing at 650°C produces the best results for antimony, whereas for arsenic, it is necessary to anneal at temperatures above 1000°C to get optimum results. Silicon was implanted with antimony at 12 keV and 40 keV and doses of 8.5×10¹⁴ cm⁻² and 4×10¹⁴ cm⁻², respectively, and arsenic at equivalent energies and doses. The electrical data from both implants are compared in order to identify the process conditions require to obtain optimum results. It is demonstrated that annealing below 800°C produces electrical profiles with no measurable diffusion of the antimony, but higher temperature anneals produce significant diffusional broadening.     

一种加锑减锡的铜基减摩材料的研制

在6－6－3青铜基含油轴承的基础上，进行了减锡加锑的试验，研制出了符合ZBW90002—88要求性能以锑部分代替锡的新合金，为节约锡资源、开辟锑的应用领域指出了一条新途径。     

火法炼银产锑烟尘的湿法处理

绍了用湿法处理火法炼银产锑烟尘的新方法．该方法流程简单，金属Sb和Ag回收率高，经济效益显著。     

Electrochemical behaviour of the antimony electrode in sulphuric acid solutions—II. Formation and properties of the primary anodic layer

The formation of an anodic layer during the oxidation of antimony in sulphuric acid solutions as well as the structure and properties of the layer have been studied using linear sweep voltammetry, potentiostatic oxidation, ac impedance measurements, X-ray diffraction analysis and scanning electron microscopy. The electrochemical investigations as well as the shape of the impedance spectra during electrode passivation indicate that the surface layer probably has a complicated structure. Under the conditions of these experiments the passivating film is mainly amorphous, gel-like, exhibiting good ionic conductivity and a relatively high dissolution rate. Assuming that the anodic layer consists mainly of antimony hydroxide a reaction scheme for the growth and dissolution of this film is presented.     

The phase relationship in the Fe–Pb–Sb ternary system at 500 K

The phase relationship of the Fe–Pb–Sb ternary system at 500 K has been studied mainly by means of X-ray powder diffraction with the aid of differential thermal analysis and optical microscope. There are three three-phase regions, five two-phase regions and five single-phase regions in this ternary system at 500 K. No ternary compounds were found.     

Effect of Potassium Doping on the Catalytic Behavior of Mo–V–Sb Mixed Oxide Catalysts in the Oxidation of Propane to Acrylic Acid

Small addition of potassium to a Mo–V–Sb mixed oxide catalyst (previously prepared by hydrothermal synthesis) strongly modifies its catalytic behavior. Thus, while acetic acid is mainly observed in the K-free catalysts, acrylic acid is selectively obtained in K-doped catalysts. In this case, a selectivity to acrylic acid of about 30% is achieved at propane conversions of 30%. This catalytic behavior is apparently not due to modification of the crystalline phases in the K-doped catalysts but to the elimination of the acid sites of the undoped Mo–V–Sb mixed oxide catalyst.     

微锑灰铸铁的生产

在生产灰铸铁时，加入微量锑可防止铁液质量波动，提高抗拉强度和耐磨性。介绍了加微量锑灰铸铁的生产工艺和适用场合。