C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 5/02 (2006.01) B01J 12/00 (2006.01) C01B 3/04 (2006.01)
Patent
CA 2052762
An improved dual temperature hydrogen sulphide exchange process substantially cost reduced over processes specified heretofore for the production of large scale volumes of heavy water (D2O) in which the method of contacting natural heavy water by the H2S gas for the purpose of recovering deuterium is changed from a sieve tray tower means to a gas diffusion cell means and in a preferred simplified process flow arrangement, low level D enrichment by H2S exchange is closely integrated with a CECE assisted electrolysis process, with or without final vacuum distillation processing, to produce 99.75% pure heavy water at a breakthrough level of cost reduction.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Richardson Audrey Christine
Richardson Reginald D.
Richardson Robert Stanley
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