硫化钠沉淀法从含铑溶液中富集铑工艺研究
收稿日期: 2020-10-25
网络出版日期: 2021-04-23
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
Received date: 2020-10-25
Online published: 2021-04-23
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 . DOI: 10.11962/1006-4990.2020-0289
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.
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