著者

黒川 晴正

出版者

一般社団法人 資源・素材学会

雑誌

Journal of MMIJ (ISSN:18816118)

巻号頁・発行日

vol.134, no.6, pp.74-80, 2018-06-30 (Released:2018-06-30)

参考文献数

11

被引用文献数

3 6

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Sumitomo Metal Mining Co., Ltd. produces copper, precious metals and rare metals as by-products at the Toyo Copper Smelter & Refinery, and nickel and cobalt at the Niihama Nickel Refinery. Precious metals contained in the nickel ore, are also separated and refined at the Toyo Refinery after concentration. Sumitomo Metal Mining Co., Ltd. has been refining precious metals by pyrometallurgical method for 400 years. In recent years Sumitomo renewed the refining process using fully advanced hydrometallurgical technology and engineering technology developed by its own. The development circumstances of the new precious metal refining processes, constitution of the new process and the operation results of this process is discussed in this paper.