| 用银废料生产试剂级硝酸银的工艺 |
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| 引用本文： | 赵飞,韩守礼,贺小塘,谭文进,吴喜龙,王欢,顾华祥,李勇.用银废料生产试剂级硝酸银的工艺[J].贵金属,2010,31(4). |
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| 作者姓名： | 赵飞 韩守礼 贺小塘 谭文进 吴喜龙 王欢 顾华祥 李勇 |
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| 作者单位： | 贵研铂业股份有限公司,稀贵金属综合利用新技术国家重点实验室,云南,昆明,650106 |
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| 摘 要： | 介绍了用银废料生产试剂级AgNO3的工艺研究,先采用化学法提纯银废料,再用提纯的银生产试剂级AgNO3,以及结晶母液的处理和废水、废气的治理。用此工艺生产出的AgNO3产品含AgNO3≥99.8%,AgNO3中的含银量≥63.4%,其余各项指标均满足GB/T60-2007标准要求。Ag-NO3直收率约为90%,银总收率约为98.8%。
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| 关 键 词： | 冶金技术 银废料 回收 硝酸银 废水 废气 |
A Process for Production of Reagent-level Silver Nitrate from Silver-containing Scrap |
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| ZHAO Fei,HAN Shouli,HE Xiaotang,TAN Wenjin,WU Xilong,WANG Huan,GU Huaxiang,LI Yong.A Process for Production of Reagent-level Silver Nitrate from Silver-containing Scrap[J].Precious Metals,2010,31(4). |
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| Authors: | ZHAO Fei HAN Shouli HE Xiaotang TAN Wenjin WU Xilong WANG Huan GU Huaxiang LI Yong |
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| Affiliation: | ZHAO Fei,HAN Shouli,HE Xiaotang,TAN Wenjin,WU Xilong,WANG Huan,GU Huaxiang,LI Yong(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co.Ltd,Kunming 650106,Yunnan,China) |
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| Abstract: | A process has been established to produce reagent-level silver nitrate directly from silver-containing scrap.The process involves purification of silver-containing scrap by chemical method,crystallization of silver nitrate from the solution and treatment of discharge.The purity of silver nitrate so produced is greater than 99.8%,with 63.4% of silver content.The product conforms to the national standard GB/T 60-2007.The direct yield for silver nitrate is up to 90.00% and the overall recovery of silver is exc... |
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| Keywords: | metallurgy silver scrap recovery silver nitrate waste liquor waste air |
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