Fundamental Studies on Development of New Technology for Separation, Concentration and Refining of Functional Heavy Metals.

个别的研究项目是由每个调查员在他们之间密切联系的情况下进行的。1993年10月在九州大学举行的日本矿业和冶金研究所1993年秋季会议上提出了部分研究项目成果。研究结果摘要如下：锌热法新工艺：Azakami和Nakazawa对“金属铁对氧化锌的还原率”进行了研究，并探讨了铁还原蒸馏工艺的可行性。Itagaki研究了“Cu-Zn-X（X=Pb, Ag, Au）三元合金的活性”作为锌的减压和熔体萃取工艺的理论基础。锌蒸气的冷凝：Asaki对“固气喷射过程中的物料传递”进行了研究。福娃用线性函数模型分析了“ISP高炉过程”。多种锌源浸出：Kiuchi开展了“废干电池提锌”的应用研究。Sasaki研究了“金属硫酸盐在高温下对硫酸铁水解的影响”。Hata提出了“锌渣处理新工艺”。锌电解：Umetsu研究了“酸性硫酸盐溶液中铅的阳极行为”，Koike研究了“在锌电解中加入醇”，Awakura研究了“从氯化物溶液中提取锌”，福岛研究了“锌电解中溶液的清洗和杂质的行为”。铅冶炼：武田研究了热力学“锌、铅在ISF炉底的行为”，山内研究了“用苏打渣从铅液中去除杂质”，中村研究了“铅电解的反应机理”，小川研究了“用热扩散法去除铅中的铋”。相信这些研究成果将对未来的锌铅工艺产生影响。

The indivisual research project had been carried out by each investigator under close communications among them. A part of research project results were presented at 1993 Fall Meeting of MMIJ (The Mining and Metallurgical Institute of Japan) which was held at Kyusyu Univ.on Oct.1993.The research results will be abstracted as follows :1. New Zinc Pyrometallurgical Process : Azakami and Nakazawa studied on "The Reduction Rate of Zinc Oxide by Metallic Iron" and investigated the feasibility of Iron-Reduction Distilllation Process. Itagaki studied "Activity of Cu-Zn-X(X=Pb, Ag, Au)Ternary Alloys" as the theoretical base of pressure reduction and melt extraction process of zinc.2. Condensing of Zinc Vapor : Asaki did the research on "Materials Transfer at Solid-Gas Injection Process". Fuwa analyzed "ISP Blast Fuenace Process by Linear Function Model".3. Leaching from Various Zinc Sources : Kiuchi carried out application research on "Zinc Extraction from Waste Dry Cells". Sasaki studied "Effects of Metal Sulfate on Hydrolysis of Iron Sulfate at Elevated Temperatures". Hata proposed "A New Process for Zinc Residue Treatment".4. Zinc Electrolysis : Umetsu studied "Anode Vehavior of Lead Allows in Acidic Sulfate Solutions", Koike "Addition of Alcohols to Zinc Electrolysis", Awakura "Zinc Extraction from Chloride Solutions" and Fukushima did "Solution Cleaning and Behavior of Impurities at Zinc Electrolysis".5. Lead Smelting : Takeda studied thermodynamically "Zinc, Lead Behavior at ISF Hearth", Yamauchi did "Removal of Impurity from Molten Lead by Soda Slag", Nakamura "Reaction Mechanism of Lead Electrolysis" and Ogawa considered "Removal of Bismuth in Lead by Thermal Diffusion".It is believed that these research results will effect furture technology of zinc and lead.