发明授权
- 专利标题: Methods of removing silver
- 专利标题(中): 去除银的方法
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申请号: US458261申请日: 1995-06-02
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公开(公告)号: US5575915A公开(公告)日: 1996-11-19
- 发明人: Takashi Nakamura , Yasuhiro Nakayama , Haruhiko Iwano , Hideo Miyazaki
- 申请人: Takashi Nakamura , Yasuhiro Nakayama , Haruhiko Iwano , Hideo Miyazaki
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX6-129048 19940610
- 主分类号: C22B7/00
- IPC分类号: C22B7/00 ; C02F1/52 ; C02F1/56 ; C02F1/68 ; C22B11/00 ; G03C5/395 ; G03C11/24 ; C02F3/02 ; C02F1/62
摘要:
A method of removing silver from a solution containing silver halide and silver ion is described, which comprises a step of adding an a sulfur atom-containing hydrophilic polymer chelating agent to the solution.
公开/授权文献
- US5129163A Multistage tenter 公开/授权日:1992-07-14
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