Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals
The practicability of a pyrometallurgical scheme for raw material processing is established as a result of the analysis of methods intended to dearsenate and process gold-arsenic concentrates as well as equipment for the process execution. The conceptual design of vacuum equipment without forced mov...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/3/540 |
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| author | Valeriy Volodin Sergey Trebukhov Alina Nitsenko Xeniya Linnik Farkhat Tuleutay Alexey Trebukhov Galiya Ruzakhunova |
| author_facet | Valeriy Volodin Sergey Trebukhov Alina Nitsenko Xeniya Linnik Farkhat Tuleutay Alexey Trebukhov Galiya Ruzakhunova |
| author_sort | Valeriy Volodin |
| collection | DOAJ |
| description | The practicability of a pyrometallurgical scheme for raw material processing is established as a result of the analysis of methods intended to dearsenate and process gold-arsenic concentrates as well as equipment for the process execution. The conceptual design of vacuum equipment without forced movement of the dispersed material in the sublimator and of the reaction zone materials is proposed. In-process tests for the sublimation of arsenic sulfides from gravity and flotation concentrates received from the Bakyrchik deposit were executed at the pilot facility. As a result, it was found that more than 97–99% of arsenic passes into the gas phase and condenses in a sulfide form suitable for compaction by smelting. More than 99.5% of precious metals are concentrated in the sublimation residue. As a result of smelting residue from the sublimation of arsenic sulfides in a cyclone furnace, together with copper concentrates to copper matte, the gold recovery was 93.7–93.9% of the total amount loaded. Silver was 65.7–68% concentrated in copper matte, with a considerable amount in the dust. If the cyclone smelting dust is involved, the recovery rate of gold and silver can be increased to 97–99% and 94–95%, respectively. As a result of crucible smelting, the degree of recovery of gold in matte was 95.4%, with its content in slag being 3.6 g/t. The received matte according to the proposed scheme can be directed to the conversion process by obtaining blister copper, which is subjected to electrolytic refining with the recovery of gold from slimes. |
| first_indexed | 2024-03-11T06:10:47Z |
| format | Article |
| id | doaj.art-e1975c3831e244558509874a81817ec8 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T06:10:47Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e1975c3831e244558509874a81817ec82023-11-17T12:39:11ZengMDPI AGMetals2075-47012023-03-0113354010.3390/met13030540Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious MetalsValeriy Volodin0Sergey Trebukhov1Alina Nitsenko2Xeniya Linnik3Farkhat Tuleutay4Alexey Trebukhov5Galiya Ruzakhunova6Institute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanInstitute of Metallurgy and Ore Beneficiation JSC, Satbayev University, Almaty 050010, KazakhstanThe practicability of a pyrometallurgical scheme for raw material processing is established as a result of the analysis of methods intended to dearsenate and process gold-arsenic concentrates as well as equipment for the process execution. The conceptual design of vacuum equipment without forced movement of the dispersed material in the sublimator and of the reaction zone materials is proposed. In-process tests for the sublimation of arsenic sulfides from gravity and flotation concentrates received from the Bakyrchik deposit were executed at the pilot facility. As a result, it was found that more than 97–99% of arsenic passes into the gas phase and condenses in a sulfide form suitable for compaction by smelting. More than 99.5% of precious metals are concentrated in the sublimation residue. As a result of smelting residue from the sublimation of arsenic sulfides in a cyclone furnace, together with copper concentrates to copper matte, the gold recovery was 93.7–93.9% of the total amount loaded. Silver was 65.7–68% concentrated in copper matte, with a considerable amount in the dust. If the cyclone smelting dust is involved, the recovery rate of gold and silver can be increased to 97–99% and 94–95%, respectively. As a result of crucible smelting, the degree of recovery of gold in matte was 95.4%, with its content in slag being 3.6 g/t. The received matte according to the proposed scheme can be directed to the conversion process by obtaining blister copper, which is subjected to electrolytic refining with the recovery of gold from slimes.https://www.mdpi.com/2075-4701/13/3/540goldsilvercopperarsenicconcentratesublimator |
| spellingShingle | Valeriy Volodin Sergey Trebukhov Alina Nitsenko Xeniya Linnik Farkhat Tuleutay Alexey Trebukhov Galiya Ruzakhunova Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals Metals gold silver copper arsenic concentrate sublimator |
| title | Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals |
| title_full | Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals |
| title_fullStr | Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals |
| title_full_unstemmed | Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals |
| title_short | Pyrometallurgical Scheme Intended to Process Arsenic-Containing Concentrates with Recovery of Precious Metals |
| title_sort | pyrometallurgical scheme intended to process arsenic containing concentrates with recovery of precious metals |
| topic | gold silver copper arsenic concentrate sublimator |
| url | https://www.mdpi.com/2075-4701/13/3/540 |
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