Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump
Waste chromium production sludge from the Dubersay tailings dump is present in huge quantities with a magnesium oxide content of up to 40 %. The chrome-containing waste was sintered at 1 100 °C, the resulting sinter was mixed with sulphuric acid when heated to 300 °C. The resulting mixture after hea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Croatian Metallurgical Society
2024-01-01
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| Series: | Metalurgija |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/443795 |
| _version_ | 1797738303605178368 |
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| author | E. Tastanov A. Ultarakova E. Kuldeyev N. Sadykov Zh. Yerzhanova A. Tastanova |
| author_facet | E. Tastanov A. Ultarakova E. Kuldeyev N. Sadykov Zh. Yerzhanova A. Tastanova |
| author_sort | E. Tastanov |
| collection | DOAJ |
| description | Waste chromium production sludge from the Dubersay tailings dump is present in huge quantities with a magnesium oxide content of up to 40 %. The chrome-containing waste was sintered at 1 100 °C, the resulting sinter was mixed with sulphuric acid when heated to 300 °C. The resulting mixture after heating was leached with water at 90 °C, the solid precipitate was washed and dried to yield a chrome concentrate containing 55,4 % Cr<sub>2</sub>O<sub>3</sub>, 8,2 % SiO<sub>2</sub>. Evaporation of the purified solution produces magnesium sulphate which is a magnesium fertilizer. |
| first_indexed | 2024-03-12T13:40:55Z |
| format | Article |
| id | doaj.art-1e3a7af2c761469b93c8f5ba3132cb35 |
| institution | Directory Open Access Journal |
| issn | 0543-5846 1334-2576 |
| language | English |
| last_indexed | 2024-03-12T13:40:55Z |
| publishDate | 2024-01-01 |
| publisher | Croatian Metallurgical Society |
| record_format | Article |
| series | Metalurgija |
| spelling | doaj.art-1e3a7af2c761469b93c8f5ba3132cb352023-08-23T14:57:32ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762024-01-01631137139Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dumpE. Tastanov0A. Ultarakova1E. Kuldeyev2N. Sadykov3Zh. Yerzhanova4A. Tastanova5Satbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanSatbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanSatbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanSatbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanSatbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanSatbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, KazakhstanWaste chromium production sludge from the Dubersay tailings dump is present in huge quantities with a magnesium oxide content of up to 40 %. The chrome-containing waste was sintered at 1 100 °C, the resulting sinter was mixed with sulphuric acid when heated to 300 °C. The resulting mixture after heating was leached with water at 90 °C, the solid precipitate was washed and dried to yield a chrome concentrate containing 55,4 % Cr<sub>2</sub>O<sub>3</sub>, 8,2 % SiO<sub>2</sub>. Evaporation of the purified solution produces magnesium sulphate which is a magnesium fertilizer.https://hrcak.srce.hr/file/443795chromium oxidesludge tailingschromium concentratesinteringX-ray research |
| spellingShingle | E. Tastanov A. Ultarakova E. Kuldeyev N. Sadykov Zh. Yerzhanova A. Tastanova Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump Metalurgija chromium oxide sludge tailings chromium concentrate sintering X-ray research |
| title | Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump |
| title_full | Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump |
| title_fullStr | Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump |
| title_full_unstemmed | Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump |
| title_short | Chemical sulfatization of chrome-containing sludges from DUBERSAY tailing dump |
| title_sort | chemical sulfatization of chrome containing sludges from dubersay tailing dump |
| topic | chromium oxide sludge tailings chromium concentrate sintering X-ray research |
| url | https://hrcak.srce.hr/file/443795 |
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