Use of dispersants in flotation of molybdenite in seawater

详细信息    查看全文

• 作者：Erick Rebolledo^a ; Janusz S. Laskowski^b ; ^{jsl@apsc.ubc.ca} ; Leopoldo Gutierrez^c ; Sergio Castro^a
• 关键词：Molybdenite ; Molybdenite flotation ; Molybdenite depression ; Slime-coating ; Seawater ; Sodium hexametaphosphate
• 刊名：Minerals Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：100
• 期：Complete
• 页码：71-74
• 全文大小：959 K
• 卷排序：100

文摘

Molybdenite flotation in seawater is depressed by precipitating magnesium hydroxide over the pH range 9.5–10.5. Sodium hexametaphosphate (SHMP) is shown to restore molybdenite flotation in this pH range. Pyrite flotation, depressed when pH > 10.5, is not restored by SHMP. The use of SHMP can be a suitable alternative in the flotation in seawater of Cu-Mo sulfide ores that require the use of lime to depress pyrite.