WATER TREATMENT COMPOSITION FOR PREVENTING SCALE AND CORROSION IN ENCLOSED CIRCULATION COOLING SYSTEM

PURPOSE: A water treatment composition for preventing scale deposition on pipes and corrosion of metal pipes in enclosed circulation cooling system is provided. CONSTITUTION: The water treatment composition comprises 0.1 to 50 wt.% of sodium nitrite or potassium nitrite; 0.1 to 40.0 wt.% of one or m...

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Main Authors YOO, GWANG HUI, HA, JAE MIN, PARK, JUN WON, SHIN, JEONG JU, HAN, SUN JONG, CHOI, DONG JIN
Format Patent
LanguageEnglish
Korean
Published 09.11.2001
Edition7
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PURPOSE: A water treatment composition for preventing scale deposition on pipes and corrosion of metal pipes in enclosed circulation cooling system is provided. CONSTITUTION: The water treatment composition comprises 0.1 to 50 wt.% of sodium nitrite or potassium nitrite; 0.1 to 40.0 wt.% of one or more phosphonate compounds selected from the group consisting of phosphonobutane tricarboxylic acid, hydroxyethylidine diphosphonic acid, hydroxyphosphono carboxylic acid and amino trimethylene phosphonic acid; 0.1 to 20.0 wt.% of azole compounds selected from the group consisting of tolyltriazole, mercapto benzothiazole and benzotriazole; and a balance of water.
Bibliography:Application Number: KR19970042083