The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 2005
Filed:
Jan. 23, 2002
Osamu Yamamoto, Kyoto, JP;
Masayuki Kinouchi, Ube, JP;
Naoki Takada, Ube, JP;
Yoji Kase, Ichihara, JP;
Masao Kikuchi, Ichihara, JP;
Osamu Yamamoto, Kyoto, JP;
Masayuki Kinouchi, Ube, JP;
Naoki Takada, Ube, JP;
Yoji Kase, Ichihara, JP;
Masao Kikuchi, Ichihara, JP;
Ube Industries, Ltd., Yamaguchi, JP;
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.