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| Study on Purification of Trace Silicic Acid in Sulfate Liquor |
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Received:April 23, 2012
Revised:April 23, 2012
Accepted:April 24, 2012
Published Online:September 19, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.10.001 |
| KeyWord:sulfate liquor; ferric hydroxide; trace silicic acid; adsorption |
| Author | Institution |
| HE Jing |
中南大学冶金科学与工程学院 |
| WANG Tao |
中南大学 冶金科学与工程学院 |
| LUO Chao |
湖南省长沙市中南大学校本部冶金馆213室 |
| WANG Xiao-neng |
湖南省长沙市中南大学校本部冶金馆213室 |
| GUO Rui |
湖南省长沙市中南大学校本部冶金馆213室 |
| LAN Ming-yan |
湖南省长沙市中南大学校本部冶金馆213室 |
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| Abstract: |
| Trace silicic acid in sulfate liquor was purified with ferric hydroxide adsorption process. The results show that the content of zinc and iron in liquor is stable, and the content of silicic acid is reduced to about 1?10-6 from 10?10-6 under the optimum conditions including reaction temperature of 60 ℃, pH=5.5, hydrogen peroxide dosage of 2 mL, reaction time of 60 min, and flocculant dosage of 0.1g/L. |
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