Recovery of Organic Germanium Compound p.t-CEtGeO Using Chelating Porous Hollow-Fiber Membranes.
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- Okamura Daisuke
- Department of Materials Technology, Faculty of Engineering, Chiba University
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- Saito Kyoichi
- Department of Materials Technology, Faculty of Engineering, Chiba University
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- Sugita Kazuyuki
- Department of Materials Technology, Faculty of Engineering, Chiba University
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- Sato Katsuyuki
- Asai Germanium Co.
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- Akiba Mitsuo
- Asai Germanium Co.
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- Tamada Masao
- Takasaki Radiation Chemistry Research Establishment
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- Sugo Takanobu
- Takasaki Radiation Chemistry Research Establishment
Bibliographic Information
- Other Title
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- キレート多孔性膜を用いる有機ゲルマニウム化合物p.t‐CEtGeOの回収
- キレート タコウセイ マク オ モチイル ユウキ ゲルマニウム カゴウブツ p t CEtGeO ノ カイシュウ
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Abstract
An epoxy-group-containing monomer, glycidyl methacrylate (GMA), was grafted onto a porous hollow-fiber membrane made of polyethylene by immersion of the electron-beam-irradiated membrane in GMA/methanol and GMA/1-butanol solution. Subsequently, the produced epoxy group of the graft chain was converted into four kinds of chelate-forming groups capable of recovering an organic germanium compound, poly-trans- [(2-carboxyethyl) germanium sesquioxide] (p.t-CEtGeO). Breakthrough curves of p.t-CEtGeO during the permeation of a p.t-CEtGeO solution through the pores of the chelating porous hollow-fiber membranes were determined to compare the adsorption capacity; the membrane prepared by the reaction of the poly-GMA chain with 2-nitrilopropanol-2-nitriloisopropanol exhibited the highest adsorption capacity of p.t-CEtGeO at 34 mg per g of the membrane. The membrane prepared in 1-butanol has 1.5-fold greater adsorption capacity than that prepared in methanol. Breakthrough curves overlapped irrespective of the residence time of the p.t-CEtGeO solution across the membrane of 1.7 to 17 sec. High-speed recovery was realized due to negligible diffusional mass-transfer resistance of p.t-CEtGeO to the chelate-forming group of the graft chain.
Journal
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- MEMBRANE
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MEMBRANE 27 (1), 46-51, 2002
THE MEMBRANE SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390282681399716864
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- NII Article ID
- 10008011078
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- NII Book ID
- AN0023215X
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- ISSN
- 18846440
- 03851036
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- NDL BIB ID
- 6058617
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed