Research on Pyrometallurgical Refining of Crude Copper by Fluxes.

熔剂火法精炼粗铜的研究。

• 批准号: 63470051
• 负责人: UEDA Yasuaki
• 金额: $ 0.58万
• 依托单位: Kitakyushu National College of Technology (1989)Kyushu Institute of Technology (1988)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63470051/
• 关键词: Pyrometallurgical Refining; Halide Fluxes; Capacity; Optical Basicity; Intermetalic Compound; V Group Elements; 光学的塩基礎; Copper Refining; V elements(As,Sb,Bi); Removal; Reduction Atomsphere

Fundamental research on pyrometallurgical refining processes for crude copper was done using fluxes containing halide compounds in order to remove V group elements such as As, Sb and Bi. Equilibrium experiments between molten copper containing V group elements and fluxes were carried out at 1473 K. Results were summarized as follows.(1) BaCO_3-BaCl_2 system flux was found to be useful to remove Bi which was difficult to remove from copper using a soda flux.(2) As, Sb and Bi capacities were defined as reciprocals of activity coefficients of oxide form in fluxes to value the impurity removal ability of fluxes and a relationship between those capacities and the optical basicity values was observed.(3) 30% of Bi could be removed from molten copper by a CaC_2-CaCl_2 flux in reducing atmosphere. Bi removal ratio increased to 70% in a CaC_2-NaCl flux at the same condition. As and Sb , however, hardly removed by the fluxes in reducing atmosphere.

关于粗铜铜铜的高压铝精炼过程的基本研究是使用含有卤化物化合物的通量进行的，以消除诸如，sb和bi之类的V组元素。在1473 K时进行了含有V组元素和通量之间的熔融铜之间的平衡实验。（1）汇总结果。（1）BACO_3-BACL_2系统通量被发现可用于去除BI，这对于使用SODA Flux的AS，SB和Bi Cosect的coefters coeffers coeffer的coefters coeffer的coeftient coeff coeff coeffer的BI很难从铜中删除。观察到通量的杂质去除能力以及这些能力与光学碱度值之间的关系。（3）（3）在减少气氛中，CAC_2-CACL_2通量可以从熔融铜中去除BI的30％。在相同情况下，在CAC_2-NACL通量中，BI去除率增加到70％。但是，AS和SB几乎没有被减少气氛中的通量消除。

项目成果

M.Ando, T.Nakamura, F.Noguchi and Y.Ueda: "Reducing Removal of Bi from Molten Copper." J.MMIJ (to be published).

M.Ando、T.Nakamura、F.Noguchi 和 Y.Ueda：“减少熔融铜中 Bi 的去除。”

安藤正俊,中村崇,野口文男,植田安昭: "溶銅中のビスマスの還元除去" 資源・素材学会誌.

安藤正敏、中村隆、野口文雄、上田康明：《还原去除熔融铜中的铋》日本资源材料学会会刊。

中村崇,野口文男,植田安昭: "ハロゲン系フラックスによる溶銅からのV族元素除去" 資源・素材関係学協会合同秋季大会・分科研究会資料. S2. 5-8 (1988)

Takashi Nakamura、Fumio Noguchi、Yasuaki Ueda：“使用卤素助熔剂从熔融铜中去除 V 族元素”资源和材料协会联合秋季会议/小组委员会材料 S2。

T.Nakamura, F.Noguchi and Y.Ueda: "Removal of V-group Elements from Molten Copper by Halide Fluxes." Pre-print of MMIJ Fall Meeting, S-2, p5-8, (1988).

T.Nakamura、F.Noguchi 和 Y.Ueda：“通过卤化物助熔剂从熔铜中去除 V 族元素”。

中村崇・野口文男・植田安昭: 資源・素材学会誌.

Takashi Nakamura、Fumio Noguchi、Yasuaki Ueda：日本资源材料学会杂志。