Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production
Lead sludge from copper production is a source of rare metals, such as rhenium and osmium, whose content reaches 0.06–0.08% and 0.0025–0.0050%, respectively. The base of the sludge consists of lead sulfate. A method of reductive smelting of lead sludge from copper smelting production at 1000–1100 °C...
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MDPI AG
2022-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/12/4071 |
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| author | Berdikulova Feruza Zharmenov Abdurassul Terlikbaeva Alma Sydykov Alimgazy Serikbayeva Akmaral |
| author_facet | Berdikulova Feruza Zharmenov Abdurassul Terlikbaeva Alma Sydykov Alimgazy Serikbayeva Akmaral |
| author_sort | Berdikulova Feruza |
| collection | DOAJ |
| description | Lead sludge from copper production is a source of rare metals, such as rhenium and osmium, whose content reaches 0.06–0.08% and 0.0025–0.0050%, respectively. The base of the sludge consists of lead sulfate. A method of reductive smelting of lead sludge from copper smelting production at 1000–1100 °C has been developed. Coke was used as a reducing agent and sodium sulfate as a slag-forming material. Optimal conditions for selective extraction of rare metals in smelting products were found: osmium in the form of metallic form into raw lead and rhenium in the form of perrhenate compound Na<sub>5</sub>ReO<sub>6</sub> into sodium-sulfate slag. The developed technology makes it possible to extract rhenium with a high degree of extraction in the form of water-soluble compounds for the subsequent production of commercial salts of rhenium by the known hydrometallurgical methods. The content of rhenium in the slag phase is 0.18–0.25%, with its initial content in the slime of 0.06–0.08%. The degree of rhenium concentration at the first stage of processing is 3–3.2 times in the form of water-soluble perrhenate. Osmium and lead do not form solid solutions; osmium in crude lead is mainly concentrated in the lower zones of lead. A method of obtaining a concentrate containing 53–67% osmium from raw lead with an initial content of 0.0025–0.0050% in the slurry and a concentration number of 13,000–21,000 times has been proposed. |
| first_indexed | 2024-03-09T23:12:55Z |
| format | Article |
| id | doaj.art-9c9c625e590f4b8a9364a815b0db9ac6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:12:55Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9c9c625e590f4b8a9364a815b0db9ac62023-11-23T17:42:08ZengMDPI AGMaterials1996-19442022-06-011512407110.3390/ma15124071Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper ProductionBerdikulova Feruza0Zharmenov Abdurassul1Terlikbaeva Alma2Sydykov Alimgazy3Serikbayeva Akmaral4RSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan”, Almaty 050036, KazakhstanRSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan”, Almaty 050036, KazakhstanRSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan”, Almaty 050036, KazakhstanRSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan”, Almaty 050036, KazakhstanRSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan”, Almaty 050036, KazakhstanLead sludge from copper production is a source of rare metals, such as rhenium and osmium, whose content reaches 0.06–0.08% and 0.0025–0.0050%, respectively. The base of the sludge consists of lead sulfate. A method of reductive smelting of lead sludge from copper smelting production at 1000–1100 °C has been developed. Coke was used as a reducing agent and sodium sulfate as a slag-forming material. Optimal conditions for selective extraction of rare metals in smelting products were found: osmium in the form of metallic form into raw lead and rhenium in the form of perrhenate compound Na<sub>5</sub>ReO<sub>6</sub> into sodium-sulfate slag. The developed technology makes it possible to extract rhenium with a high degree of extraction in the form of water-soluble compounds for the subsequent production of commercial salts of rhenium by the known hydrometallurgical methods. The content of rhenium in the slag phase is 0.18–0.25%, with its initial content in the slime of 0.06–0.08%. The degree of rhenium concentration at the first stage of processing is 3–3.2 times in the form of water-soluble perrhenate. Osmium and lead do not form solid solutions; osmium in crude lead is mainly concentrated in the lower zones of lead. A method of obtaining a concentrate containing 53–67% osmium from raw lead with an initial content of 0.0025–0.0050% in the slurry and a concentration number of 13,000–21,000 times has been proposed.https://www.mdpi.com/1996-1944/15/12/4071rheniumosmiumlead sludgemetal recoveryblack leadrhenium-containing slag |
| spellingShingle | Berdikulova Feruza Zharmenov Abdurassul Terlikbaeva Alma Sydykov Alimgazy Serikbayeva Akmaral Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production Materials rhenium osmium lead sludge metal recovery black lead rhenium-containing slag |
| title | Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production |
| title_full | Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production |
| title_fullStr | Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production |
| title_full_unstemmed | Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production |
| title_short | Extraction of Rhenium and Osmium from Lead Technogenic Raw Materials of Copper Production |
| title_sort | extraction of rhenium and osmium from lead technogenic raw materials of copper production |
| topic | rhenium osmium lead sludge metal recovery black lead rhenium-containing slag |
| url | https://www.mdpi.com/1996-1944/15/12/4071 |
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