Abstract:
This invention relates to a process for the enrichment of isotopes by chromatography on a saturated stationary phase. The process provides a more efficient method than the existing methods.
Abstract:
This invention relates to a method for separation of isotopes, that is, to obtain isotopically pure fractions by separating natural occurring isotope mixtures in elements, where hydrogen is employed as ligand on the elements that are to be isotopically separated, and where the resulting compounds are gaseous at practical temperatures and pressures. More specific, the invention relates to a method for obtaining an isotopically pure 28SiH4 in industrial scale by separating the isotopes in a chromatographic column.
Abstract:
A method for concentrating and/or entrapping radioisotopes from an aqueous solution, said method comprises mixing the aqueous solutions with at least one inorganic salt under conditions in which said salt forms at least one stable hydrate, incorporating the tritium as water of crystallisation. Said hydrate will neither react nor degrade for extended periods of time, and accordingly a method of stabilising large amount of radioactive waste is provided.
Abstract:
A method for concentrating and/or entrapping radioisotopes from an aqueous solution, said method comprises mixing the aqueous solutions with at least one inorganic salt under conditions in which said salt forms at least one stable hydrate, incorporating the tritium as water of crystallisation. Said hydrate will neither react nor degrade for extended periods of time, and accordingly a method of stabilising large amount of radioactive waste is provided.
Abstract:
The present invention relates to a process for enriching isotopes using colloidal substrates, the specific methodology of using them and to uses therefor. The substrate material of the invention comprises surface ionic groups covering at least part of the substrate. The substrate material of the invention provides a binding mechanism to the isotopes resulting in enrichment in at least one of the isotopes.