Composition and method for treating water systems
View Patent ↗A solid composition for treating cooling or heated water systems to remove scale, microorganisms and biofilm, and corrosion by-products. The composition for cooling towers and chilled water systems comprises chelating agents and an anionic surfactant. The composition for boilers and heated water systems comprises a sulfite, neutralizing amines, sodium phosphate, and, optionally, a polymethacrylate or polyacrylate polymer. A method for using such a treatment composition comprises contacting the treatment composition with substantially all parts of the water system.
1. A solid amine salt composition for treating a boiler or heated water system, the composition comprising cyclohexylamine and morpholine, at least one sulfite, and at least one phosphate, and water;
wherein the cyclohexylamine and morpholine combined comprise around 30% to 70% of the composition by weight; and
wherein the sulfite or sulfites combined comprise around 0% to 40% of the composition by weight.
2. The solid composition according to claim 1 comprising around 0% to 30% of the sulfite.
3. A method of treating a boiler or heated water system, the method comprising the steps of:
providing a solid amine salt treatment composition comprising a cyclohexylamine and morpholine, at least one sulfite, and at least one phosphate; and
contacting the water containing the treatment composition with components of the boiler or heated water system being treated for a period of time;
wherein the cyclohexylamine and morpholine combined comprise around 30% to 70% of the composition by weight; and
wherein the sulfite or sulfites combined comprise around 0% to 40% of the composition by weight.
4. The method of claim 3 wherein the solid composition is an amine salt comprising about 20% to about 30% cyclohexylamine and about 10% to 20% morpholine, about 5% to 40% total weight of one or more phosphates, about 0 to 30% total weight of one or more sulfites, and 3 to 10% water.
5. The method of claim 3 wherein the amine salt comprises about 30% to 40% sodium metabisulfite.
6. The method of claim 5 wherein the amine salt comprises about 15% to 30% monosodium phosphate.
7. The method of claim 3 further comprising dissolving the solid treatment composition in a dissolution chamber to form a concentrated liquid at the treatment site, and feeding the concentrated liquid into the boiler or heated water system being treated.
8. The solid composition of claim 2 wherein the phosphate is monosodium phosphate, disodium phosphate, trisodium phosphate or a combination thereof and the sulfite is sodium metabisulfite, or sodium sulfite, or both.
9. The solid composition according to claim 2 wherein the composition comprises around 20% to 30% cyclohexylamine and around 10% to 20% morpholine.
10. The solid composition according to claim 9 wherein the composition comprises around 20% to 25% cyclohexylamine and around 15% to 20% morpholine.
11. The solid composition according to claim 10 wherein the composition comprises around 10% to 30% total of the phosphate or phosphates.
12. The solid composition according to claim 1 comprising around 30% to 40% sodium metabisulfite and around 15% to 30% total of the phosphate or phosphates.
13. The solid composition according to claim 12 wherein the composition comprises around 20% to 25% cyclohexylamine and around 15% to 20% morpholine.
14. The method according to claim 6 wherein the amine salt comprises about 20% to 25% cyclohexylamine and about 15% to 20% morpholine.
15. The method of claim 4 wherein the amine salt comprises about 15% to 30% monosodium phosphate.
16. The method according to claim 15 wherein the amine salt comprises about 20% to 25% cyclohexylamine and about 15% to 20% morpholine.
17. A solid amine salt composition for treating a boiler or heated water system, the composition consisting essentially of:
30%-70% total weight of cyclohexylamine and morpholine;
10-40% total weight of sodium sulfite, sodium metabisulfite, or both;
15%-30% total weight of one or more phosphates;
3%-10% water; and
a conditioning agent to aid in forming the composition into tablets or pellets.
18. The solid amine salt composition according to claim 17 wherein the cyclohexylamine is 20% to 25% by weight of the composition and the morpholine is 15% to 20% by weight of the composition.
19. The solid amine salt composition according to claim 18 wherein total weight of sulfites is 10-30%.
20. A solid amine salt composition for treating a boiler or heated water system, the composition comprising around 20% to 30% by weight cyclohexylamine, around 10%-20% by weight morpholine, around 2% to 70% of one or more phosphates, and wherein the composition does not include sulfites.
21. The solid composition according to claim 20 wherein the composition comprises about 20% to 25% cyclohexylamine, about 15% to 20% morpholine.