发明授权
- 专利标题： Method of anticorrosive treatment for soft water boilers
- 专利标题（中）： 软水锅炉防腐处理方法
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申请号： US108764申请日： 1987-10-15
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公开(公告)号： US4885136A公开(公告)日： 1989-12-05
- 发明人: Sakae Katayama , Hirohiko Katayama , Toshihiko Mukai , Yoshinari Kawasaki
- 申请人： Sakae Katayama , Hirohiko Katayama , Toshihiko Mukai , Yoshinari Kawasaki
- 申请人地址： JPX Osaka
- 专利权人： Katayama Chemical Works Co., Ltd.
- 当前专利权人： Katayama Chemical Works Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX61-248075 19861017
- 主分类号： C23F11/12
- IPC分类号： C23F11/12 ; C23F11/08 ; C23F11/14 ; C23F11/167 ; C23F11/18
摘要：
A method of anticorrosive treatment for soft water boilers to prevent iron family metals from corrosion, especially from pitting corrosion, which is characterized by adding, to a boiler water system using soft water at a high temperature, (a) a specific amount of a phosphorus compound, (b) a specific amount of a carboxylic acid compound and (c) a specific amount of a metal compound.
公开/授权文献
- USD433440S Electronic copying machine 公开/授权日：2000-11-07