Claims
- 1. A water treatment composition comprising at least one phosphonamide formed from an amine selected from the group consisting of cyclohexylamine, morpholine, octadecylamine, N,N-dimethyl-1,3-propandiamine, and ammonium hydroxide, and
a phosphonic acid selected from the group consisting of aminotri(methylene phosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, and 2-phosphono-butane-1,2,4-tricarboxylic acid, and blends thereof to treat water.
- 2. The composition of claim 1 wherein the blend comprising at least two phosphonamides formed from at least two amines and a phosphonic acid, said blend having a cumulative amine to phosphonic acid mole ratio in the range of from about 1:1 to about 10:1.
- 3. The composition of claim 1 further comprising an amino-phosphate ester formed from a hydroxyamine and a phosphonic acid.
- 4. The composition of claim 1 further comprising a hardness control agent.
- 5. The composition of claim 1 wherein the phosphonamide is present in at least about 10% by weight of the composition.
- 6. The composition of claim 1 wherein the composition is a solid.
- 7. The composition of claim 2 wherein the phosphonamide is present in at least about 10% by weight of the composition.
- 8. The composition of claim 3 wherein the amino-phosphate ester is present in at least about 10% by weight of the composition.
- 9. The composition of claim 3 wherein the hydroxyamine is selected from the group consisting of N,N-diethylethanolamine, 2-amino-2-methyl-1-propanol, 1,1-dimethylamine-propanol, and 2-dimethylamino-2-methyl-1-propanol.
- 10. The composition of claim 4 wherein the hardness control agent is a sulfonated water soluble polymeric compound.
- 11. A water treatment composition comprising a blend of:
at least two phosphonamides formed from at least two amines independently selected from the group consisting of cyclohexylamine, morpholine, octadecylamine, N,N-dimethyl-1,3-propanediamine, and ammonium hydroxide, and a first phosphonic acid; and an amino-phosphate ester formed from a hydroxyamine selected from the group consisting of N,N-diethylethanolamine, 2-amino-2-methyl-1-propanol, 1,1-dimethylamine-propanol, and 2-dimethylamino-2-methyl-1-propanol, and a second phosphonic acid, said blend having a cumulative amine to cumulative phosphonic acid mole ratio in the range of from about 1:1 to about 10:1, and used to treat water.
- 12. The composition of claim 11 wherein the first phosphonic acid is the same as the second phosphonic acid.
- 13. The composition of claim 11 wherein the first and second phosphonic acids are independently selected from the group consisting of polyphosphoric acid, aminotri(methylene phosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, and 2-phosphono-butane-1,2,4-tricarboxylic acid.
- 14. The composition of claim 1 comprising a blend of:
a morpholine-1-hydroxy-ethylidene-phosphoryl-phosphonamide present in at least about 10% by weight; a cyclohexylamine-1-hydroxy-ethylidene-phosphorylphosphonamide present in at least about 10% by weight; and a diethylaminoethanol-1-hydroxy-ethylidene-phosphorylphosphonate ester present in at least about 10% by weight of the blend, said blend being formed from a mixture of morpholine, cyclohexylamine, and N,N-diethylethanolamine reacted with 1-hydroxyethylidene-1,1-di-phosphonic acid and having a cumulative amine to 1-hydroxyethylidene-1,1-di-phosphonic acid mole ratio in the range of from about 1:1 to about 10:1.
- 15. A method of treating water comprising the step of:
adding to water at least one phosphonamide formed from a reaction between an amine and a phosphonic acid, in an amount sufficient to treat the water.
- 16. The method claimed in claim 15 wherein the amine is of the general formula HN—R′R2 wherein R1 and R2 independently are selected from the group consisting of H, alkyl, cycloalkyl, aryl, and heteroaryl organic structures having up to 10 atoms selected from the group consisting of C, N, and O, and wherein R1 and R2 taken together with the nitrogen to which they are attached can form a 5 or 6 membered ring containing 0-2 additional heteroatoms selected from N or O, and
the phosphonic acid is of the general formula (OR)2—P(O)OH wherein each R independently is selected from the group consisting of H, alkyl, cycloalkyl, aryl, and heteroaryl organic structures having up to 10 atoms selected from the group consisting of C, N and O.
- 17. The method claimed in claim 15 wherein the amine is selected from the group consisting of cyclohexylamine, morpholine, octadecylamine, N,N-dimethyl-1,3-propanediamine, and ammonium hydroxide.
- 18. The method claimed in claim 15 wherein the phosphonic acid is selected from the group consisting of polyphosphoric acid, aminotri(methylene phosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, and 2-phosphonobutane-1,2,4-tricarboxylic acid.
- 19. The method claimed in claim 15 comprising adding to the water a blend of at least two phosphonamides formed from different amines and a phosphonic acid, wherein said blend has a cumulative amine to phosphonic acid mole ratio in the range of from about 1:1 to about 10:1.
- 20. The method claimed in claim 15 further comprising adding to the water an amino-phosphate ester formed from a hydroxyamine and a phosphonic acid.
- 21. The method claimed in claim 15 further comprising adding to the water a hardness control agent.
- 22. The method claimed in claim 15 wherein the phosphonamide is present in at least about 10% by weight of the composition.
- 23. The method claimed in claim 15 wherein the composition is a solid.
- 24. The method claimed in claim 19 wherein each phosphonamide is present in at least about 10% by weight of the composition.
- 25. The method claimed in claim 20 wherein the amino-phosphate ester is present in at least about 10% by weight of the composition.
- 26. The method claimed in claim 20 wherein the hydroxyamine is selected from the group consisting of N,N-diethylethanolamine, 2-amino-2-methyl-1-propanol, 1,1-dimethylamine-propanol, and 2-dimethylamino-2-methyl-1-propanol.
- 27. The method claimed in claim 15 wherein the composition is added to boiler water to treat water in a boiler and boiler feedlines.
- 28. The method claimed in claim 15 wherein the composition is added to water in a cooling tower.
- 29. The method claimed in claim 21 wherein the hardness control agent is a sulfonated water soluble polymeric compound.
- 30. The method claimed in claim 15 comprising adding to water an amount of a blend of:
at least two phosphonamides formed from at least two different amines selected from the group consisting of cyclohexylamine, morpholine, octadecylamine, N,N-dimethyl-1,3-propanediamine, and ammonium hydroxide, and a first phosphonic acid; and an amino-phosphate ester formed from a hydroxyamine selected from the group consisting of N,N-diethylethanolamine, 2-amino-2-methyl-1-propanol, 1,1-dimethylamine-propanol, and 2-dimethylamino-2-methyl-1-propanol, and a second phosphonic acid, wherein the blend has a cumulative amine to cumulative amine to phosphonic acid mole ratio in the range of from about 1:1 to about 10:1.
- 31. The method claimed in claim 30 wherein the first acid is the same as the second acid.
- 32. The method claimed in claim 30 wherein the first and second phosphonic acids are independently selected from the group consisting of polyphosphoric acid, aminotri(methylene phosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, and 2-phosphono-butane-1,2,4-tricarboxylic acid.
- 33. The method claimed in claim 15 comprising adding to water an amount of a blend of:
a morpholine-1-hydroxy-ethylidene-phosphoryl-phosphonamide formed from morpholine present in a range of from about 10% to about 50% by weight and 1-hydroxy-ethylidene-1,1-di-phosphonic acid; a cyclohexylamine-1-hydroxy-ethylidene-phosphorylphosphonamide formed from cyclohexylamine present in a range of from about 10% to about 66% by weight and 1-hydroxy-ethylidene-1,1-di-phosphonic acid; and a diethylaminoethanol-1-hydroxy-ethylidene-phosphorylphosphonate ester formed from diethylaminoethanol present in a range of from about 10% to about 70% by weight and 1-hydroxy-ethylidene-1,1-di-phosphonic acid, wherein the cumulative amine to 1-hydroxy-ethylidene-1,1-diphosphonic acid weight ratio is in the range of from about 1:1 to about 10:1.
- 34. The method claimed in claim 33 wherein the blend is added to boiler water to treat water in a boiler and boiler feedlines.
- 35. The method claimed in claim 15 comprising adding to water in a cooling tower:
a cyclohexylamine-1-hydroxy-ethylidene-phosphorylphosphonamide formed from cyclohexylamine and 1-hydroxy-ethylidene-diphosphonic acid and having a cyclohexylamine to 1-hydroxy-ethylidenediphosphonic acid mole ratio in the range of from about 1:10 to about 2:1, and a copolymer, in an amount sufficient to treat the water.
RELATED APPLICATION
[0001] This application is related to application Ser. No. 10/231,531 entitled Phosphonamide and Phosphonamide Blend Compositions and Method to Treat Water filed Aug. 30, 2002.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10231531 |
Aug 2002 |
US |
Child |
10348161 |
Jan 2003 |
US |