Production of chalcocite by selective chlorination of chalcopyrite using cuprous chloride

Q2 Materials Science

Minerals & Metallurgical Processing Pub Date : 2017-05-01 DOI:10.19150/MMP.7507

J. Kang, J. Lee

引用次数: 2

Abstract

A selective chlorination process using cuprous chloride (CuCl) was investigated for producing high-grade chalcocite (Cu2S) from chalcopyrite (CuFeS2) feed. The chalcopyrite feed was reacted with CuCl in the presence or absence of sulfur (S) at temperatures between 900 and 1,100 K for five hours under an argon gas atmosphere. The experimental results indicate that iron (Fe) was selectively removed from the chalcopyrite feed as ferrous chloride (FeCl2) at 1,100 K and the mass percentage of Fe thus decreased from 31.5 percent in the feed to less than 0.05 percent in the residue, under certain conditions. As a result, high-grade Cu2S was obtained from chalcopyrite in a single step. This new selective chlorination of chalcopyrite using CuCl as a chlorinating agent is therefore feasible for producing high-grade Cu2S.

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用氯化亚铜选择性氯化黄铜矿生产辉铜矿

以黄铜矿（CuFeS2）为原料，采用氯化亚铜（CuCl）选择性氯化工艺生产高品位辉铜矿（Cu2S）。黄铜矿进料在存在或不存在硫（S）的情况下，在氩气气氛下，在900和1100K之间的温度下与CuCl反应5小时。实验结果表明，在1100K下，铁（Fe）以氯化亚铁（FeCl2）的形式从黄铜矿进料中被选择性地去除，因此在某些条件下，Fe的质量百分比从进料中的31.5%降低到残渣中的小于0.05%。结果，在一个步骤中从黄铜矿获得了高品位的Cu2S。因此，使用CuCl作为氯化剂对黄铜矿进行这种新的选择性氯化对于生产高品位Cu2S是可行的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Minerals & Metallurgical Processing 工程技术-矿业与矿物加工

CiteScore

0.84

自引率

0.00%

发文量

审稿时长

>12 weeks

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