Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1987-03-10
1988-08-30
Terapane, John F.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
2041572, 20415722, 423 70, B01D 5934, B01D 1100, C01G 2500
Patent
active
047675136
ABSTRACT:
The zirconium 91 isotope is separated from zirconium by a photo-assisted extraction process wherein a first solution is formed of a first solvent, scavenger and zirconium compound, which compound reacts with the scavenger when exposed to light, and while irradiating the first solution to form a zirconium reaction product, contacting the same with a second solvent that is immiscible with the first solvent and is a preferential solvent for the zirconium reaction product, with the reaction product transferred to the second solution, and the two solutions then separated. An acidic aqueous media is preferred as the first solvent, with excess acid used to provide anions that act as the scavenger.
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patent: 4578165 (1986-03-01), Peterson et al.
patent: 4584183 (1986-04-01), Chiang et al.
patent: 4612097 (1986-09-01), Jackovitz et al.
K. Kogure et al., Journal of Chromatography, 259(1983), pp. 480-486.
Lahoda Edward J.
Peterson Steven H.
Caress Virginia B.
Terapane John F.
Westinghouse Electric Corp.
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