Quantitative leaching of galena
Experiments on the quantitative leaching of lead from galena in hydrochloric acid solutions are reported. The effects of contact time, acid concentration, number of leaching stages, solid to liquid ratio, particle size, temperature, and stirring speed, on the leaching reaction are reported. About 96...
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| Format: | Article |
| Language: | English |
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Chemical Society of Ethiopia
2000-06-01
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| Series: | Bulletin of the Chemical Society of Ethiopia |
| Online Access: | http://www.ajol.info/index.php/bcse/article/view/71994 |
| _version_ | 1828475920215703552 |
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| author | E.O. Olanipekun |
| author_facet | E.O. Olanipekun |
| author_sort | E.O. Olanipekun |
| collection | DOAJ |
| description | Experiments on the quantitative leaching of lead from galena in hydrochloric acid solutions are reported. The effects of contact time, acid concentration, number of leaching stages, solid to liquid ratio, particle size, temperature, and stirring speed, on the leaching reaction are reported. About 96% of lead was dissolved within 120 min by 8.42 M hydrochloric acid solution at 95 oC. Multi-stage leaching was not so advantageous, but the extent of leaching increased greatly with temperature. The optimum solid to liquid phase ratio and particle size were found to be 1/30 kg/L and -88+53 m, respectively. Dissolution was enhanced by stirring speed over the range 0 to 400 min-1 and reached a steady rate thereafter. |
| first_indexed | 2024-12-11T06:20:16Z |
| format | Article |
| id | doaj.art-33781e585f3b41cdbaf7909f45e05326 |
| institution | Directory Open Access Journal |
| issn | 1011-3924 1726-801X |
| language | English |
| last_indexed | 2024-12-11T06:20:16Z |
| publishDate | 2000-06-01 |
| publisher | Chemical Society of Ethiopia |
| record_format | Article |
| series | Bulletin of the Chemical Society of Ethiopia |
| spelling | doaj.art-33781e585f3b41cdbaf7909f45e053262022-12-22T01:17:50ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2000-06-011412532Quantitative leaching of galenaE.O. OlanipekunExperiments on the quantitative leaching of lead from galena in hydrochloric acid solutions are reported. The effects of contact time, acid concentration, number of leaching stages, solid to liquid ratio, particle size, temperature, and stirring speed, on the leaching reaction are reported. About 96% of lead was dissolved within 120 min by 8.42 M hydrochloric acid solution at 95 oC. Multi-stage leaching was not so advantageous, but the extent of leaching increased greatly with temperature. The optimum solid to liquid phase ratio and particle size were found to be 1/30 kg/L and -88+53 m, respectively. Dissolution was enhanced by stirring speed over the range 0 to 400 min-1 and reached a steady rate thereafter.http://www.ajol.info/index.php/bcse/article/view/71994 |
| spellingShingle | E.O. Olanipekun Quantitative leaching of galena Bulletin of the Chemical Society of Ethiopia |
| title | Quantitative leaching of galena |
| title_full | Quantitative leaching of galena |
| title_fullStr | Quantitative leaching of galena |
| title_full_unstemmed | Quantitative leaching of galena |
| title_short | Quantitative leaching of galena |
| title_sort | quantitative leaching of galena |
| url | http://www.ajol.info/index.php/bcse/article/view/71994 |
| work_keys_str_mv | AT eoolanipekun quantitativeleachingofgalena |