发明授权
- 专利标题: Process for preventing the formation of nitrogen monoxide in treatment of metals with nitric acid or mixed acid
- 专利标题(中): 防止在用硝酸或混合酸处理金属时形成一氧化氮的方法
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申请号: US418907申请日: 1973-11-26
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公开(公告)号: US3953263A公开(公告)日: 1976-04-27
- 发明人: Misao Ishikawa , Rokuro Tsuji , Norihisa Yoshimori
- 申请人: Misao Ishikawa , Rokuro Tsuji , Norihisa Yoshimori
- 申请人地址: JA
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JA
- 主分类号: C23F1/16
- IPC分类号: C23F1/16 ; C23F1/26 ; C23F3/06 ; C23G1/02 ; C23F1/00 ; C23F1/02
摘要:
The formation of nitrogen monoxide in treatment of metals with nitric acid or a mixed acid can be prevented by adding at least one of ammonium peroxodisulfate and hydrogen peroxide to nitric acid or a mixed acid consisting mainly of nitric acid and sulfuric acid.
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