C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
31/47
C23F 11/167 (2006.01) C23F 11/08 (2006.01) C23F 11/12 (2006.01) C23F 11/14 (2006.01) C23F 11/18 (2006.01)
Patent
CA 1300363
ABSTRACT OF THE DISCLOSURE 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.
549530
Katayama Hirohiko
Katayama Sakae
Kawasaki Yoshinari
Mukai Toshihiko
Katayama Hirohiko
Katayama Sakae
Katayama Chemical Works Co. Ltd.
Kawasaki Yoshinari
Moffat & Co.
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