Process for krypton an xenon extraction

Details Process for krypton an xenon extraction Process for krypton an xenon extraction

1998-03-04

2000-05-16

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Inert or noble gas or compound thereof

423240R, C01B 2300

Patent

active

060633530

ABSTRACT:
Krypton and/or xenon are extracted from a krypton-xenon concentrate by means of distillation, for example, a krypton-xenon concentrate obtained from a low-temperature air separation unit. To remove fluorine- and/or chlorine-containing contaminants, especially fluorocarbons, CF.sub.4 and/or SF.sub.6, the krypton-xenon concentrate, a krypton stream and/or a xenon stream are purified in a solid sorbent that contains phyllosilicates.

REFERENCES:
patent: 4078907 (1978-03-01), Schlea
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patent: 5122173 (1992-06-01), Agrawal et al.
patent: 5685172 (1997-11-01), Darredeau et al.
patent: 5709734 (1998-01-01), Scholz et al.
patent: 5792523 (1998-08-01), McHugh, III

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