Purification of Flake Graphite in a Certain Area of Madagascar
This is an article in the field of mineral processing engineering. The flake graphite flotation concentrate in Madagascar was purified by hydrofluoric acid method. The grade of raw material flake graphite was 94.96%. Based on the single-factor condition tests, the purification process was establishe...
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| Format: | Article |
| Language: | zho |
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2024-12-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.021 |
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| author | Zhenmin ZHAI Yangshuai QIU Lingyan ZHANG Zhenfei MAO Shaochuan DU Yu ZHANG |
| author_facet | Zhenmin ZHAI Yangshuai QIU Lingyan ZHANG Zhenfei MAO Shaochuan DU Yu ZHANG |
| author_sort | Zhenmin ZHAI |
| collection | DOAJ |
| description | This is an article in the field of mineral processing engineering. The flake graphite flotation concentrate in Madagascar was purified by hydrofluoric acid method. The grade of raw material flake graphite was 94.96%. Based on the single-factor condition tests, the purification process was established that the mixture of hydrochloric acid and hydrofluoric acid was 3.5 mL/g, HF volume fraction was 40%, and the graphite grade could be purified to 99.98% by water bath reaction at 60 ℃ for 8 h. In view of the poor purification effect of fine graphite, the graphite was screened and classification before purification. The fine graphite class was subjected to ultrasonic shock pretreatment test, and acid leaching was carried out for purification after 60 min of ultrasonic shock. After purification, the fixed carbon content of fine graphite class was ≥99.92%. |
| format | Article |
| id | doaj-art-02b567e9b82b4a888b6fd961d8b75607 |
| institution | Kabale University |
| issn | 1000-6532 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj-art-02b567e9b82b4a888b6fd961d8b756072025-01-16T07:32:24ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322024-12-0145613514010.3969/j.issn.1000-6532.2024.06.0212025-01zhaizhenminPurification of Flake Graphite in a Certain Area of MadagascarZhenmin ZHAI0Yangshuai QIU1Lingyan ZHANG2Zhenfei MAO3Shaochuan DU4Yu ZHANG5School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaThis is an article in the field of mineral processing engineering. The flake graphite flotation concentrate in Madagascar was purified by hydrofluoric acid method. The grade of raw material flake graphite was 94.96%. Based on the single-factor condition tests, the purification process was established that the mixture of hydrochloric acid and hydrofluoric acid was 3.5 mL/g, HF volume fraction was 40%, and the graphite grade could be purified to 99.98% by water bath reaction at 60 ℃ for 8 h. In view of the poor purification effect of fine graphite, the graphite was screened and classification before purification. The fine graphite class was subjected to ultrasonic shock pretreatment test, and acid leaching was carried out for purification after 60 min of ultrasonic shock. After purification, the fixed carbon content of fine graphite class was ≥99.92%.http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.021mineral processing engineeringgraphite purificationhydrofluoric acid methodscreening classificationultrasonic shock pretreatment |
| spellingShingle | Zhenmin ZHAI Yangshuai QIU Lingyan ZHANG Zhenfei MAO Shaochuan DU Yu ZHANG Purification of Flake Graphite in a Certain Area of Madagascar Kuangchan zonghe liyong mineral processing engineering graphite purification hydrofluoric acid method screening classification ultrasonic shock pretreatment |
| title | Purification of Flake Graphite in a Certain Area of Madagascar |
| title_full | Purification of Flake Graphite in a Certain Area of Madagascar |
| title_fullStr | Purification of Flake Graphite in a Certain Area of Madagascar |
| title_full_unstemmed | Purification of Flake Graphite in a Certain Area of Madagascar |
| title_short | Purification of Flake Graphite in a Certain Area of Madagascar |
| title_sort | purification of flake graphite in a certain area of madagascar |
| topic | mineral processing engineering graphite purification hydrofluoric acid method screening classification ultrasonic shock pretreatment |
| url | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.021 |
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