摘要
陆丰铁帽型金矿是原生含金黄铁矿矿床长期表生地质作用的产物。通过矿相鉴定、化学分析、化学物相分析、谱学特征研究、差热分析、电子显微镜及电子探针等手段,查明了褐铁矿铁帽系黄铁矿氧化产物,其主要矿物为针铁矿,金矿物为自然金,主要呈细粒和微粒状产出。矿石经氰化钠溶液浸化试验,金的浸出率为93.78%,采用全泥氰化回收金是可行的。
Lufeng gossan-type gold mineralization can be attributed to continuous supergenesis of Lufeng gold-bearing pyrite deposit.Different analyses and tests, including mineragraphic identification,chemical analysis,chemical phase analysis, special spectrology,EMA and EPA,all indicated that gold mineral occurs as fine or micro-grained in the limonite gossan which resulted from oxidization of pyrite, mostly comprising goethite.Leaching experiment with solution of sodium cyanate on the gold ore gave a leaching rate of 93.78% gold,thus meaning a high feasibility for bulk-clay cyanation to be adopted to recover gold.
出处
《化工矿产地质》
CAS
1996年第1期53-60,共8页
Geology of Chemical Minerals
关键词
金矿床
黄铁矿床
铁帽型
褐铁矿
物质组成
gossan-type gold mineralization
pyrite
limonite
native gold
leaching rate
Lufeng Guangdong
