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| STUDY ON EXCHANGE PERFORMANCE OF LITHIUM ION-SIEVE SYNTHESIZED BY REDUCTION - AMMONIACAL LEACHING RESIDUE OF POLYMETALLIC NODULES |
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Received:June 02, 2006
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| DOI： |
| KeyWord:lithium ion- sieve; exchange; ocean polymetallic nodules; reduction- ammoniacal leaching residue |
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| Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China |
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| Abstract: |
| The exchange performance of the lithium ion-sieve is studied,which was synthesized with LiOH and reduction-ammoniacal leaching residue of polymetallic nodules.The kinetic curve of Li-IS shows that the exchange equilibrium of Li+ is achieved quickly.The saturated exchange capacity is about 6.5mg/g closed to the ion-sieve prepared with pure compounds of manganese.The distribution coefficient order is as the following: Li+>Ca2+>Mg2+>K+>Na+,and the separation coefficients of lithium-calcium and lithium-magnesium are 16756 and 35483 respectively. |
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