摘要
某单─银矿经浮选所得精矿（％）：Ａｇｌ～２，Ｃｕ≈１，Ｐｂ４～７，ＣａＯ＋ＭｇＯ３０～３５，Ｓ４～７，Ｃ８～９。研究了氰化、硫脲、氨浸等方案对该精矿浸出效果，并从浸出指标等因素进行比较，认为焙烧─预浸─氨浸方案较好，银浸出率＞９７％，铜浸出率９５％。
The recovery of silver from a flotation concentrate containing Ag 1～2,Cu≈1,Pb 4～7,CaO+MgO 30～35,S4～7and C 8～9%was studied.The recoveries, consumptions of the reagents,equipments and en-vironmental factors for three processes(such as cyanidation,thiourea leaching and ammonia leaching)were compared,The roast-pretreatment-ammonia leaching with higher recoveries of Ag≥97%and Cu≈95%was proposed.
出处
《贵金属》
CAS
CSCD
北大核心
1995年第1期7-11,共5页
Precious Metals
关键词
银矿
银精矿
焙烧
氨浸
炼银
浸出
Silver concentrates,Roasting,Ammonia leaching
