发明授权
- 专利标题: Process for electrolytically purifying a photographic waste solution
- 专利标题(中): 电解纯化摄影废液的方法
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申请号: US665057申请日: 1976-03-08
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公开(公告)号: US3998710A公开(公告)日: 1976-12-21
- 发明人: Reiichi Itai , Katsuyuki Murakami
- 申请人: Reiichi Itai , Katsuyuki Murakami
- 申请人地址: JA Tokyo
- 专利权人: The Japan Carlit Co., Ltd.
- 当前专利权人: The Japan Carlit Co., Ltd.
- 当前专利权人地址: JA Tokyo
- 优先权: JA50-29318 19750311
- 主分类号: G03C5/00
- IPC分类号: G03C5/00 ; C02F1/461 ; C02F1/467 ; G03C5/395 ; C02B1/82
摘要:
After silver has been recovered from a photographic waste solution, said waste solution is electrolytically purified by adding chloride ion and carbonate ion or chloride ion, carbonate ion and iodide or iodate ion to said waste solution under limited pH, temperature, anode current density and current concentration conditions.
公开/授权文献
- US5158280A Letter processing apparatus 公开/授权日:1992-10-27
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