Subcritical Water Hydrolysis of Gelatin in Used X-Ray and Lith Films
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- Yasuda Masahiro
- Department of Chemical Engineering, Osaka Prefecture University
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- Fujimura Shigeki
- Department of Chemical Engineering, Osaka Prefecture University
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- Tsugita Nobuhiro
- Department of Chemical Engineering, Osaka Prefecture University
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- Masui Akihiko
- Environment and Chemistry Department, Technology Research Institute of Osaka Prefecture
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- Glomm Wilhelm Robert
- Department of Chemical Engineering, Norwegian University of Science and Technology
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- Ogino Hiroyasu
- Department of Chemical Engineering, Osaka Prefecture University
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- Yoshida Hiroyuki
- Department of Chemical Engineering, Osaka Prefecture University
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説明
Used X-ray and lith films are composed of a protective layer, a gelatin layer (photosensitive layer) that contains silver particles, and a base poly(ethylene terephthalate) (PET) layer. In stainless steel tube reactor, used films were immersed in water and gelatin in both protective layer and gelatin layer was hydrolyzed under subcritical condition. After reaction for 5 min at 175°C, the entire amount of gelatin was decomposed, and the PET film and silver particles were recovered independently. In the case of the lith film, incubation at 200°C for at least 5 min was required for the complete decomposition of gelatin. Gel permeation chromatography (GPC) analysis of the water-soluble reaction mixture indicated that the average molecular mass of water-soluble gelatin decreased over time.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 44 (12), 963-968, 2011
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204567784064
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- NII論文ID
- 130000967387
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- COI
- 1:CAS:528:DC%2BC38XhtlSgsr8%3D
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- ISSN
- 18811299
- 00219592
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
