| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a chemical which can more efficiently retain the pH of boiler water, and can perform corrosion inhibition to the boiler whole system including supply/condensate water as well as the inside of a boiler can without adding a phosphate at a concentration higher than the prescribed one or without increasing the molar ratio of Na/PO<SB>4</SB>more highly than 3.0. <P>SOLUTION: The corrosion inhibitor for a boiler comprises diethaolamine, and can further comprise a deoxidizer(s) such as hydrazine, 1-amino pyrrolidine, N, N-diethylhydroxylamine and ascorbic acid (salt), or further can include the other neutral amines, and is the corrosion inhibitor for a boiler mainly added to boiler water having a super heater and a steam turbine. <P>COPYRIGHT: (C)2011,JPO&INPIT |
