Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-02-10
1977-09-27
Curtis, Allen B.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C10200
Patent
active
040511855
ABSTRACT:
Alkali metal alkylamides, for example, potassium methylamide or mixtures of lithium and potassium methylamides, containing impurities may be purified by a novel process. The first step of the process comprises reacting the alkali metal alkylamides, in solution in methylamine, with ammonia to form the corresponding alkali metal amides which precipitate from solution while the impurities remain dissolved. The solid alkali metal amides are then separated from the solution, e.g., by filtration. The solution containing the impurities is distilled; and the distillate, comprised of methylamine containing some ammonia, is contacted with the alkali metal amides under reflux conditions and then the solution is rectified to remove ammonia. Under these conditions the alkali metal amides react with the methylamine to form a solution in methylamine of alkali metal methylamides freed of impurities. The solution is suitable for use as a catalyst for a deuterium enrichment process.
REFERENCES:
patent: 2612436 (1952-09-01), Overhoff et al.
Fernelius et al. Chem. Rev. vol. 20, p. 236 1937.
Chem. Abs. 8334(e), (1963), Klein et al., Isotopic Enrichment of Deuterium.
Prescott John Fraser
Sanford Emerson Cecil
Atomic Energy of Canada Ltd.
Curtis Allen B.
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