Quantitative Analysis on Sulfidic and Oxidic Dissolutions of Copper in Matte Smelting Slag

冰铜熔渣中铜的硫化和氧化溶解的定量分析

• 批准号: 05650721
• 负责人: TAKEDA Yoichi
• 金额: $ 1.54万
• 依托单位: Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650721/
• 关键词: Copper smelting; Slag; Matte; Slag Loss; Matte Smelting; Oxidic Dissolution; Sulfidic Dissolution; Activity; 銅製錬; マット溶錬

In order to estimate sulfidic and oxidic dissolution of copper in matte smelting slags, following equilibrium experiments have been performed. The experimental results and heat balance of copper smelting suggest that the optimum copper content in matte produced in matte smelting furnace is 70%.(1) The equilibrium experiments between FeO_X-CaO-SiO_2 slag and molten copper have been carried out from 1200 to 1400ﾟC to determine the activity coefficient of CuO_<0.5> Consequently, we can calculate the oxidic copper solubility in the FeO_X-CaO-SiO_2 slag from the experimental results. The activity coefficient varies from 1 to 15 depending on the slag composition.(2) The experimental results of the slag-matte-copper metal under iron saturation lead to the activity coefficient of CuS_<0.5> in the Cu-Fe-S-O matte and the relation between sulfur content in slag and the activity coefficient of CuS_<0.5> in slag.(3) The copper solubility in the slag equilibrated with matte have been measured under a corrent of 10% SO_2. The sulfidic and oxidic dissolutions of copper are estimated from the experimental results of 1,2 and 3.4. Heat balance of copper smelting has been calculated. The optimum copper content in matte produced in matte smelting furnace is 70% in view of energy consumption and copper loss in slag.

为了估算铜在冰铜冶炼渣中的硫化和氧化溶解，进行了下列平衡实验。实验结果和熔炼铜的热平衡表明，冰铜在冰铜熔炼炉中的最佳含铜量为70%。(1)在1200~1400ﾟC进行了FeO_X-CaO-SiO_2渣与铜熔体的平衡实验，确定了CuO_(0.5)&GT的活度系数，从而计算出氧化铜在FeO_X-CaO-SiO_2渣中的溶解度。(2)铁饱和条件下渣-冰铜-铜的实验结果得出了铜-铁-冰铜-冰铜的活度系数，以及渣中硫含量与渣中铜的活度系数的关系.(3)在10%SO2的条件下，测定了铜在冰铜与冰铜平衡的渣中的溶解度.根据1，2和3.4的实验结果，估算了铜的硫化和氧化溶解.对铜冶炼的热平衡进行了计算。综合考虑能耗和炉渣中铜的损失，冰铜熔炼炉生产的冰铜的最佳含铜量为70%。

项目成果

Yoichi Takada: "The Effects on Oxidic Disso lietion of Copper in Slay" Metallurgical Processes for the Early Twenty-First Century, TMS. 1. 20-30 (1994)

Yoichi Takada：“二十一世纪初冶金过程中铜的氧化溶解的影响”，TMS。

武田要一: "鋼転炉のエネルギー収支" 基幹金属のエネルギー高効率利用による次世代製練法開発に関する基礎研究報告書. (1996)

Yoichi Takeda：“炼钢转炉的能量平衡”关于利用基础金属高效能源开发下一代冶炼方法的基础研究报告（1996）。

武田要一: "Fe-Cu-S-O-SiO_2(-MgO)系の酸素-硫黄ポテンシャル" 資源と素材. (発表予定).

Yoichi Takeda：“Fe-Cu-S-O-SiO_2(-MgO) 体系的氧-硫势”资源和材料（预定演示）。

武田要一: "銅転炉のエネルギー収支" 基幹金属のエネルギー高効率利用による次世代製錬法開発に関する基礎研究報告書. (1996)

Yoichi Takeda：《铜转炉的能量平衡》利用基本金属的高效能源利用开发下一代冶炼方法的基础研究报告（1996）。

Yoichi Takeda: "The Effects on Oxidic Dissolution of Copper in Slag" Metallurgical Processes for the Early Twenty First Century, TMS. Vol.1. 20-30 (1994)

Yoichi Takeda：“二十一世纪初冶金过程对炉渣中铜的氧化溶解的影响”，TMS。