(1. 昆明貴金屬研究所， 昆明 650221;
2. 云南大學(xué) 化學(xué)與材料工程學(xué)院， 昆明 650091)
摘 要: 目前世界上所有知名的鉑族金屬生產(chǎn)廠均采用從硫化銅鎳浮選精礦用火法熔煉高锍捕集鉑族金屬的工藝， 整個(gè)流程十分繁冗，周期長(zhǎng)， 環(huán)境污染大。 采用新研究成功的浮選精礦→加壓氧化酸浸→加壓氰化→置換富集貴金屬的高效、 低污染、 短流程全濕法新工藝， 對(duì)云南金寶山浮選精礦進(jìn)行了批量為5kg的擴(kuò)大試驗(yàn)， 并就S、 Fe、 SiO2、 MgO及貴金屬在全濕法工藝中的走向與傳統(tǒng)火法工藝進(jìn)行了比較討論。
關(guān)鍵字: 鉑族金屬； 浮選精礦； 加壓浸出； 加壓氰化；濕法冶金
ZHAO Jia-chun1, LI Qi-wei1
（1. Kunming Precious Metals Institute，
Kunming 650221, China;
2. School of Chemical and Material Engineering, Yunnan University, Kunming 650091, China）
Abstract:The traditional methods for treatment of flotation concentrates of Cu-Ni sulfide ore containing platinum-group metals are all pyrometallurgy processes. The whole craft-flow is very long and have serious environmental pollution. A new short hydrometallurgical process flow with high recoveries of metals and low pollution for treatment of Yunnan Jinbaoshan Pt-Pd sulfide flotation concentrates was suggested. The typical processes include pressure oxidation sulfide-acid leaching, pressure cyanide leaching and zinc cementation. The process development unit capable of treating 5kg batches of flotation concentrates was investigated, and the difference between traditional and new craft was also discussed and compared from the passage of S, Fe, SiO2, MgO and precious metals.
Key words: platinum-group metals; flotation concentrate; pressure leaching; pressure cyanidation; hydrometallurgy
