Obtaining Neodymium-Containing Microfertilizers According to the Sorption Technology
N. M. KOZHEVNIKOVA1, N. E. ABASHEEVA2, N. M. GARKUSHEVA1, M. G. MERKUSHEVA2 and Z. A. SOLDATOVA2
1Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences,
Ul. Sakhyanovoy 8, Ulan Ude 670047 (Russia), E-mail: ioeb@bsc.buryatia.ru
2Buryat Institute of Biology, Siberian Branch of the Russian Academy of Sciences,
Ul. Sakhyanovoy 6, Ulan Ude 670047 (Russia)
Pages: 65-69
Abstract
New efficient microfertilizers based on neodymium and natural zeolites are proposed. The equilibrium and kinetics of sorption of neodymium ions from the solutions of nitrate and sulphate by mordenite-containing tufa are investigated. It is established that neodymium is fully extracted from diluted solutions (<0.002 M); with an increase in concentration, sorption capacity of tufa with respect to neodymium ions is observed to decrease sharply. The kinetic parameters of sorption process are determined.
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