介绍了我国有色金属冶金基础研究现状及所取得的重要成果, 提出了拟定我国有色金属冶金发展战略的原则, 并从以下几方面对如何进一步开展我国有色金属冶金基础研究提出了建议:复杂界面交互作用、矿物的生物加工理论与技术、丰产元素资源的深加工、再生金属资源化和“三废”资源化、无污染冶金、冶金过程热力学和动力学、机械活化冶金、膜科学与技术在冶金中的应用基础、冶金电化学新前沿、熔盐电解、冶金过程和设备的数字仿真与优化、传感器与自动控制等。

TMS2007年会于2月25日至3月1日在美国佛罗里达州奥兰多市举行。作者在参加本次TMS年会并阅读会议有关出版物的基础上,介绍了氧化铝、铝电解、镁业技术以及钛技术创新方面的亮点,并将《Light Metals 2007》中氧化铝与铝土矿、铝电解技术和电极技术三部分的论文目录翻译后以附录给出。

An improved pyroconductivity test device, consisting of a specially constructed airtight furnace and a potentiostat, was constructed based on the conventional direct current fourelectrode technique. Symmetrical current distribution in the specimen was obtained by keeping a fixed pressure and good electrical contact between the specimen and the electrodes at any temperature. The potentiostat was used to supply direct current and continuously monitor the current intensity and voltage drop, which could be adjusted outside the heating furnace to give good contact with the specimen. Test results of graphite specimens showed that the reliability and reproducibility were excellent. The electrical conductivity as a function of temperature for various spinel-containing cermet inert anodes was investigated, spanning the Hall-H

Ni-NiO-NiFe2O4 cermets with different NiO and Ni contents were prepared and their corrosion behaviors in Na3AlF6-Al2O3 melts were investigated in laboratory electrolysis tests. The solubilities of NiO-NiFe2O4 ceramics with different NiO contents were also determined by an equilibration technique. The electrolysis tests showed that excess NiO was beneficial to the reduction of Fe while had little effect on that of Ni in the bath; the steady-state concentrations of Ni, Fe were below the solubilities of corresponding NiO-NiFe2O4 ceramic matrix. The increase of Ni content in cermets had little influence on the steady-state concentrations of both Ni and Fe, which were also far below their solubilities. Post-electrolysis micro examination of anodes showed that Ni metal may be oxidized first and then transferred to the melts by chemical dissolution. Moreover, the impurity ions transferred directionally and gathered near cathode, forming a concentration gradient; such a gradient was affected by a variety of factors and requires further researches.

Cu/(10NiO-90NiFe2O4) cermet inert anodes with metal Cu content of 0,5,10,15 and 20% were prepared and their corrosion behavior in Na3AlF6-Al2O3 melts was investigated in laboratory electrolysis tests. The results indicate that the content of metal Cu in anodes had little effects on the steady-state concentrations of Ni in electrolyte, the concentration of Fe decreases from 304ppm to 206ppm and that of Cu increases from 21ppm to 70ppm with the content of metal Cu increasing from 0 to 20%. Considering the corrosion resistance, among NiFe2O4 based cermet anodes with different content of metal Cu, 5Cu/(10NiO-90NiFe2O4) cermet behaves best and should be further studied. Post-examination shows that metal Cu at the anode surface is oxidized, which improve its corrosion resistance, and doesn’t leach preferentially during electrolysis.