硫化钠沉淀法从含铑溶液中富集铑工艺研究

doi:10.11962/1006-4990.2020-0289

无机盐工业 ›› 2021, Vol. 53 ›› Issue (4): 81-85.doi: 10.11962/1006-4990.2020-0289

硫化钠沉淀法从含铑溶液中富集铑工艺研究

贺晓莹¹,李晨²(),王鹏飞²,蒋凌云²,臧甲忠²,吴青³

1.银川能源学院,宁夏银川 750100
2.中海油天津化工研究设计院有限公司
3.中国海油石油集团有限公司

收稿日期:2020-10-25 出版日期:2021-04-10 发布日期:2021-04-23
通讯作者: 李晨
作者简介:贺晓莹（1980— ）,女,硕士,讲师,研究方向为材料制备与分析;E-mail：hxy-mn@qq.com。
基金资助:
中国海洋石油集团有限公司科技项目(CNOOC-KJ 135 FZDXM 00 LH 005 YJY- 2017)

Study on enrichment process of rhodium from rhodium containing solution by sodium sulfide precipitation

He Xiaoying¹,Li Chen²(),Wang Pengfei²,Jiang Lingyun²,Zang Jiazhong²,Wu Qing³

1. Yinchuan University of Energy,Yinchuan 750100,China
2. CenerTech Tianjin Chemical Research and Design Institute Co.,Ltd.
3. China National Offshore Oil Co.,Ltd.

Received:2020-10-25 Online:2021-04-10 Published:2021-04-23
Contact: Li Chen

摘要/Abstract

摘要：

用硫化钠作沉淀剂,从含铑强酸性水溶液中沉淀富集铑金属。通过实验确定了影响铑沉淀率的诸多因素,如沉淀剂加入量、沉淀温度、沉淀剂硫化钠加料速度、陈化时间及搅拌速度等。结果表明,当沉淀剂硫化钠与铑的物质的量比为10、沉淀温度为100 ℃、硫化钠加入速度为5 mL/min、陈化时间为1 h、搅拌速度为600 r/min时,铑沉淀率达到最大,铑沉淀率最高为99%以上。富集后溶液铑含量低于1 mg/kg,铑富集效果明显。

关键词: 硫化沉淀, 含铑溶液, 铑回收

Abstract:

Sodium sulfide was used as precipitant to precipitate and enrich rhodium metal from rhodium containing strong acid aqueous solution.Many factors affecting the rhodium precipitation yield were determined through experiments,such as the amount of precipitant,precipitation temperature,feeding speed of the precipitant of sodium sulfide,aging time and stirring speed.The results showed that when amount-of-substance of the precipitant of sodium sulfide and rhodium was 10,precipitation temperature was 100 ℃,adding speed of sodium sulfide was 5 mL/min,aging time was 1 h and stirring speed was 600 r/min,the yield of rhodium precipitation reached the maximum.The highest yield of rhodium precipitation was more than 99%.After enrichment,the rhodium content in the solution was less than 1 mg/kg and the effect of rhodium enrichment was obvious.

Key words: sulfide precipitation, rhodium containing solution, rhodium recovery

中图分类号:

TQ138.22

贺晓莹,李晨,王鹏飞,蒋凌云,臧甲忠,吴青. 硫化钠沉淀法从含铑溶液中富集铑工艺研究[J]. 无机盐工业, 2021, 53(4): 81-85.

He Xiaoying,Li Chen,Wang Pengfei,Jiang Lingyun,Zang Jiazhong,Wu Qing. Study on enrichment process of rhodium from rhodium containing solution by sodium sulfide precipitation[J]. Inorganic Chemicals Industry, 2021, 53(4): 81-85.

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样品	w（Rh）/ （g·kg^-1）	w（HCl）/ %	w（Na）/ %	w（Fe）/ %	w（Ca）/ %	w（H₃PO₄）/ %
1	20.54	16.4	5.6	3.1	0.1	5.8
2	22.18	13.2	5.6	2.1	0.1	5.2
3	21.85	16.1	5.6	2.8	0.1	6.1
4	25.36	13.5	5.6	2.5	0.1	5.6

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硫化钠沉淀法从含铑溶液中富集铑工艺研究

Study on enrichment process of rhodium from rhodium containing solution by sodium sulfide precipitation

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