Abstract
Lithium (Li) adsorption on both amorphous aluminum hydroxides and gibbsite was studied. For the amorphous Al(OH)3 the adsorption was found to be pH dependent. Generally, 1.6 times more Li was adsorbed at initial pH value 8.0 compared with pH value 6.50. Gibbsite adsorbed 11.6 to 45.5 times less Li quantities compared with amorphous Al(OH)3. Lithium adsorption was not depended on equilibrium times. It remained stable for all equilibrium times used. Lithium quantities extracted with 1N CH3COONH4 pH 7 , represent the physical adsorption, while the remaining Li that was adsorbed on Al(OH)3, represents the chemical adsorption. During the desorption process 19% of Li extracted with NH4+, represents the physical adsorption, while the remaining 81% of Li, which was adsorbed represents the chemical adsorption. In gibbsite, 9.6% of Li represents the physical adsorption and 90.4% the chemical one. The experimental data conformed well to Freundlich isotherm equation.
Keywords
References
- Bradford, G.R., 1966. Lithium. In: Diagnostic criteria for plant and soils. (Chapman, H.D., ed) Agric. Sci. Univ. California, Riverside, CA. pp. 218-224.
- Brümmer, G.W. 1986. In : The Importance of Chemical Speciation in Environmental Process. Springer – Verlag, Berlin, pp. 169-192.
- De Villiers, J.E., 1983. The manganese deposits of Griqualand West, South Africa: some mineralogic aspects. Economic Geology 78: 1108-1118.
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- Pistiner, J.S., Henderson. G.M., 2003. Lithium – isotope fractionation during continental weathering processes. Earth and Planetary Science Letters 214 (1-2): 327-339.
Abstract
References
- Bradford, G.R., 1966. Lithium. In: Diagnostic criteria for plant and soils. (Chapman, H.D., ed) Agric. Sci. Univ. California, Riverside, CA. pp. 218-224.
- Brümmer, G.W. 1986. In : The Importance of Chemical Speciation in Environmental Process. Springer – Verlag, Berlin, pp. 169-192.
- De Villiers, J.E., 1983. The manganese deposits of Griqualand West, South Africa: some mineralogic aspects. Economic Geology 78: 1108-1118.
- Golden, D.C., Dixon, J.B., Kanehiro, Y., 1993. The manganese oxide mineral, lithiophorite, in an Οxisol from Hawaii. Australian Journal of Soil Research 31: 51-66.
- Helmke, P.A., Sparks, D.L., 1996. Lithium, Sodium, Potassium, Rubidium and Cesium. In: Methods of Soil Analysis. Part 3. Chemical Methods. No 5. Chapter 19 pp. 551-555.
- Pistiner, J.S., Henderson. G.M., 2003. Lithium – isotope fractionation during continental weathering processes. Earth and Planetary Science Letters 214 (1-2): 327-339.
Details
| Primary Language | English |
|---|---|
| Journal Section | Articles |
| Authors | |
| Publication Date | January 2, 2016 |
| Published in Issue | Year 2016 |