Method for supercritical fluid extraction of metals
Author: V.A. Babain, R.N. Kiseleva, A.A. Murzin, V.N. Romanovsky, V.A. Starchenko, I.V. Smirnov, A.Yu. Shadrin
Reference: Patent, 10.06.2001, Moscow patent holder: V.G. Khlopin Radium Institute
Keywords: waste, decontamination, supercritical solvent
Abstract: The invention relates to treatment of radioactive wastes. The matrix, contaminated by radionuclides, is kept in a chamber with high pressure, within supercritical solvent, in the presence of water, organic acid and complexone. After soaking, pumping of chamber, with supercritical carbon dioxide, is conducted for the sake of complete extraction, then the extracted metal is collected into the solution.
URL: http://www.findpatent.ru/patent/216/2168779.html
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