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Title:
CORROSION PREVENTION METHOD OF BOILER
Document Type and Number:
Japanese Patent JP2008240073
Kind Code:
A
Abstract:

To provide a corrosion prevention method of a boiler with which a corrosion prevention effect and scale prevention effect of copper can be simultaneously obtained in a boiler water system containing copper in feed water.

The corrosion prevention method of the boiler containing the copper in the feed water comprises adding a rust preventive material to the boiler water system in such a manner that the oxidation-reduction potential of blow water turns to 0 mV. An anticorrosive material has low deoxidizing capability and for example, a succinic acid or its salt, citric acid or its salt, a sorbic acid or its salt can be used.


Inventors:
Uchida, Kazuyoshi
Endo, Masaru
Application Number:
JP2007000082734
Publication Date:
October 09, 2008
Filing Date:
March 27, 2007
Export Citation:
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Assignee:
KURITA WATER IND LTD
International Classes:
C23F11/12; B01D19/00; C02F1/20; C02F5/00; C02F5/10; C23F15/00; F22B37/52
Domestic Patent References:
2003-05-21
1993-08-03
1983-03-12