Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2005-02-17
2008-12-23
Greene, Jason M (Department: 1797)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C095S055000, C096S004000, C096S008000, C096S010000, C096S011000, C055S524000, C055SDIG007
Reexamination Certificate
active
07468093
ABSTRACT:
An Ni—Ti—Nb based multiple phase alloy consists of a combined phase which comprises a phase for the hydrogen permeability and a phase for the resistance to hydrogen embrittlement. The alloy has a composition satisfying the formula: NixTiyNb(100-x-y)in which x=25˜45 mol % and y=25˜55 mol %. A metal membrane for hydrogen separation-purification is prepared using the alloy material. The alloy material is prepared by blending Ni, Ti and Nb and melting the blend. The metal membrane permits the hydrogen separation-purification and thus the resulting purified hydrogen gas can be used as a fuel and can be applied to fields of production of semiconductors.
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Aoki Kiyoshi
Ishikawa Kazuhiro
Matsuda Takeshi
Arent & Fox LLP
Greene Jason M
Kiyoshi AOKI
ULVAC Inc.
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