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| Study on the adsorption mechanism of carboxymethyl cellulose on ilmenite and titanaugite |
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Received:July 29, 2010
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| DOI：10.3969/j.issn.1005-7854.2011.01.002 |
| KeyWord:ilmenite；titanaugite；CMC；adsorption；ζ potential |
| Author | Institution |
| WEI Zhi-cong |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| XU Xiang |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| FANG Jian-jun |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| LIU Dian-wen |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| ZHANG Xiao-lin |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| LIU Yang |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
| ZHANG Wen-bin |
Faculty of Land Resource Engineering，Kunming University of Science and Technology，Kunming ，China |
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| Abstract: |
| Carboxymethyl cellulose (CMC) has been widely used as a flotation depressor. In this study, it showthat the CMC is also an effective depressor for ilmenite and titanaugite flotation by the results of monomineral floatation tests. In order to find out the depression mechanism of the CMC, Zeta potential tests are carried out, and the results showed that after adsorption of CMC on ilmenite and titanaugite, the Zeta potentials of the minerals significantly decreased. It found that the adsorption of CMC on ilmenite and titanaugite reaches its maximum at pH 5, and the adsorption capacity of titanaugite to the CMC is greater than that of ilmenite. According to the investigation result, it must be a competitive adsorption between ilmenite and titanaugite. |
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