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| Study on Tin Enrichment by Wet Process from Tin-smelting Waste Slag |
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Received:January 30, 2015
Revised:February 04, 2015
Accepted:February 05, 2015
Published Online:June 23, 2015
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| DOI：doi：10.3969/j.issn.1007-7545.2015.07.005 |
| KeyWord:tin-smelting waste slag; tin; recycling; acid leaching |
| Author | Institution |
| Yu Cong |
江苏理工学院 |
| Tong Fei |
江苏理工学院 |
| Wang Huihui |
江苏理工学院 |
| Sun Yangcheng |
江苏理工学院 |
| Ge Mingmin |
江苏理工学院 |
| Zhou Quanfa |
江苏理工学院 |
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| Abstract: |
| Tin was enriched from tin-smelting waste slag in electric arc furnace with hydrochloric acid as leaching agent under the conditions including temperature of 40 ℃, ratio of liquid to solid of 25︰1(mL/g), and stirring rate of 250 r/min. The results show that tin content in slag is enriched from 1.82% to 13.61%, and metal tin with purity of 98% is recovered with tin recovery of 99.5% from enriched slag by further acid-leaching and zinc replacement. The removal rate of silica and calcium, which can be sold as by-products, is 83.42% and 94.21% respectively. |
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