Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2005-07-26
2005-07-26
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C095S047000, C096S008000, C096S009000, C096S010000, C096S014000
Reexamination Certificate
active
06921428
ABSTRACT:
A halide gas separating and collecting device for separating and collecting halide gas from mixed gas containing the halide gas, wherein at least first and second stage separating membrane modules are stacked in multiple stages. The method comprises: feeding the mixed gas to the inlet of the first stage separating membrane module, feeding the gas passed through the previous separating membrane module to the inlets of the second and subsequent stage separating membrane modules, recycling the gas unpassed through the second and subsequent stage separating membrane modules to the inlet of the first stage separating membrane module, and controlling the flow of gas unpassed through the first stage separating membrane module by a control valve connected to the unpassed gas outlet of the first stage separating membrane module, whereby the halide gas can be separated and collected as unpassed gas at a high density and a high collection rate.
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Kase Yoji
Kikuchi Masao
Kinouchi Masayuki
Takada Naoki
Yamamoto Osamu
Spitzer Robert H.
Ube Industries Ltd.
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