Title:
METHOD FOR REFINING RAW RARE GAS
Document Type and Number:
Japanese Patent JP2584381
Kind Code:
B2
Abstract:
PURPOSE: To remove gaseous nitrogen with a device not so intricate as the PSA method and obtain high-purity gaseous helium by excluding hydrogen from a pulverized hydrogen storage alloy and then bringing gaseous helium into contact with the alloy.
CONSTITUTION: A hydrogen storage alloy selected from among a one-component alloy of Ca, Li, rare-earth elements, etc., a two-component alloy of TiMn1.5, TiMn2, Ti-Co, rare-earth element-Ni etc., a multicomponent alloy of TiMn0.6, Cr0.9, Ti-Fe-Mn, rare-earh element-Zr-Co, etc., is placed in the refiner tower 1 of a raw gas refiner, brought into contact with gaseous hydrogen at 35kg/cm2 and 25°C for 8hr, activated and pulverized to increase the surface of the alloy, the gaseous hydrogen is excluded, the raw helium entraining nitrogen as a gaseous impurity or gaseous argon is introduced into the tower 1 above ordinary temps. from a line 2, the raw rare gas is passed through the void of the fine alloy powder to promote chemisorption and selectively discharged into a refined gas line 8.
Inventors:
NOMURA TAIO
HATSUTORI YOSHINOBU
TSUCHE JUJI
TOYOMATSU NORYUKI
WADA HIROSHI
YATABE MASARU
HATSUTORI YOSHINOBU
TSUCHE JUJI
TOYOMATSU NORYUKI
WADA HIROSHI
YATABE MASARU
Application Number:
JP2714992A
Publication Date:
February 26, 1997
Filing Date:
January 17, 1992
Export Citation:
Assignee:
IWATANI GASU KAIHATSU KENKYUSHO KK
IWATANI GASU KK
IWATANI GASU KK
International Classes:
B01D53/14; B01J20/02; C01B21/04; C01B23/00; (IPC1-7): C01B23/00; B01D53/14; B01J20/02; C01B21/04
Domestic Patent References:
| JP61107919A |
Attorney, Agent or Firm:
Juichi Chatan
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