贵金属
貴金屬
귀금속
PRECIOUS METALS
2014年
1期
19-22
,共4页
尤大海%张亚辉%隆岗%涂博%黄俊玮
尤大海%張亞輝%隆崗%塗博%黃俊瑋
우대해%장아휘%륭강%도박%황준위
冶金技术%含金硫酸渣%氯盐浸出%浸出率
冶金技術%含金硫痠渣%氯鹽浸齣%浸齣率
야금기술%함금류산사%록염침출%침출솔
metallurgy%gold-containing slag from sulfuric acid production%chlorine leaching%leaching rate
针对难处理含金硫酸渣进行了硫酸盐化焙烧-氯化(氯酸钠-氯盐)浸出试验研究,考察了氯酸钠用量、氯化钠用量、液固比、浸出时间、浸出温度、焙烧预处理等因素对金浸出率的影响。研究结果表明,在优化的试验条件:氯化钠用量为80 kg/t,氯酸钠100 kg/t,反应温度80℃,液固比为3,反应时间为4 h下,处理该含金硫酸渣可以得到91.44%的金浸出率。
針對難處理含金硫痠渣進行瞭硫痠鹽化焙燒-氯化(氯痠鈉-氯鹽)浸齣試驗研究,攷察瞭氯痠鈉用量、氯化鈉用量、液固比、浸齣時間、浸齣溫度、焙燒預處理等因素對金浸齣率的影響。研究結果錶明,在優化的試驗條件:氯化鈉用量為80 kg/t,氯痠鈉100 kg/t,反應溫度80℃,液固比為3,反應時間為4 h下,處理該含金硫痠渣可以得到91.44%的金浸齣率。
침대난처리함금류산사진행료류산염화배소-록화(록산납-록염)침출시험연구,고찰료록산납용량、록화납용량、액고비、침출시간、침출온도、배소예처리등인소대금침출솔적영향。연구결과표명,재우화적시험조건:록화납용량위80 kg/t,록산납100 kg/t,반응온도80℃,액고비위3,반응시간위4 h하,처리해함금류산사가이득도91.44%적금침출솔。
Sulfatizing roasting and chlorine leaching of refractory gold-containing slag from sulfuric acid production have been investigated. The effects of sodium chlorate dosage, sodium chloride dosage, liquid-solid ratio, leaching time, reaction temperature and pretreatment condition on leaching recovery of gold have been studied. The results show that the leaching rate can reach as high as 91.44% under the optimum conditions that the addition of NaClO3 is 100 kg/t, the addition of NaCl is 80 kg/t, the liquid-solid ratio is 3, the leaching temperature is 80℃ and the leaching time is 4.0 h.