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| Study on Removal of Fe(Ⅲ) from Sulfuric Acid Leaching Solution of Pelagic Clay |
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Received:April 26, 2017
Revised:April 28, 2017
Accepted:May 02, 2017
Published Online:September 18, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.10.004 |
| KeyWord:pelagic clay; sulfuric acid leaching solution; iron phosphate; neutralization precipitation; iron removal |
| Author | Institution |
| SUN Chang-yong |
昆明理工大学冶金与能源工程学院;广东省稀有金属研究所 |
| ZHANG Kui-fang、 |
广东省稀有金属研究所;广东省稀土开发及应用重点实验室 |
| CAO Hong-yang |
广东省稀有金属研究所;广东省稀土开发及应用重点实验室 |
| ZHU Ke-chao |
广州海洋地质调查局 |
| ZHU Wei |
广东省稀有金属研究所;广东省稀土开发及应用重点实验室 |
| LIU Zhi-qiang、、 |
昆明理工大学冶金与能源工程学院;广东省稀有金属研究所;广东省稀土开发及应用重点实验室 |
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| Abstract: |
| New method to remove iron from sulfuric acid leaching solution of pelagic clay by iron phosphate method (IPM) was studied. The effects of phosphate dosage, pH value of terminal point, and temperature on iron removal were investigated and compared with neutralization precipitation method (NPM). The results show that iron removal rate is 94.77% and Y3 loss rate is only 1.37% under the optimum conditions including phosphate dosage of 1.2 times of theoretical value, temperature of 30℃, and pH value of terminal point of 2.5. Iron removal rate of IPM is close to NPM, but Y3 loss rate of IPM is far lower than that of NPM. IPM also has the advantages of high reaction rate and easy filtering performance. |
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