常压低酸浸出处理砷滤饼  

Treatment of Arsenic Filter Cake by Acid Leaching under Normal Pressure

作　　者：魏栋 石玉桥 董广刚 葛哲令 WEI Dong;SHI Yuqiao;DONG Guanggang;GE Zheling(Xiangguang Copper Co.,Ltd.,Yanggu 252327,Shandong,China)

机构地区：[1]阳谷祥光铜业有限公司,山东阳谷252327

出　　处：《有色金属(冶炼部分)》2025年第3期146-151,共6页Nonferrous Metals(Extractive Metallurgy)

摘　　要：为解决铜冶炼企业产出砷滤饼委外处理费用高、有价组分损失的问题,开展了硫酸浸出处理砷滤饼的工艺试验。分别考察了硫酸浓度、浸出压力、浸出温度、浸出时间、液固比等因素对砷滤饼浸出效果的影响;考察了不同冷却结晶温度对三氧化二砷结晶的影响。对砷滤饼进行无害化处理,将砷滤饼中的砷转化为产品三氧化二砷,节约了委外处理的费用,同时还可回收其中的铜、硫等有价组分。In order to solve the problem of high exterior processing costs and loss of valuable components of arsenic filter cake for copper smelting enterprises,the process test of leaching arsenic filter cake with sulfuric acid was carried out.The effects of sulfuric acid concentration,leaching pressure,leaching temperature,leaching time and liquid-solid ratio on the leaching effects of arsenic filter cake were investigated,and the effects of different crystallization temperatures on crystallization of arsenic trioxide were studied.The arsenic cake was treated harmlessly,and the arsenic in the cake was converted into arsenic trioxide,which saves the cost of outsourcing treatment and recovered the valuable components such as copper and sulfur.

关 键 词：砷滤饼 浸出 还原 结晶 三氧化二砷 

分 类 号：TF811[冶金工程—有色金属冶金]