Disinfecting/mineral treating composition and methods comprising a chlorite or chlorate salt

• US 8,765,656 B2
• Filed: 10/04/2012
• Issued: 07/01/2014
• Est. Priority Date: 08/02/2006
• Status: Active Grant

• Current Assignee: CH20 Incorporated
• Original Assignee: CH20 Incorporated
• Inventors: Iverson, Carl E.
• Primary Examiner(s): BOYER, CHARLES I
• Application Number:
  US13/645,362
• Publication Number:
  US 20130233696A1
• Time in Patent Office: 635 Days
• Field of Search: 510/199, 510/218, 510/219, 510/236, 510/247, 510/367, 510/379, 510/380, 510/382, 510/436, 510/467
• US Class Current: 510/247
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 57/20 containing acyclic or cycloaliphatic radicals
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A01N 59/26 Phosphorus; Compounds thereof
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: C02F 1/50 by addition or application of a germicide or by oligodynamic treatment C02F1/4606, C02F1/467, C02F1/76 take precedence
• CPC Class Codes: C11D 3/3956 Liquid compositions
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• CPC Class Codes: C11D 7/08 Acids
• CPC Class Codes: C11D 7/16 Phosphates including polyphosphates

Abstract

Source water is treated by mixing a first component selected from the group comprising neutralized phosphonic acid compounds, neutralized phosphonate compounds, neutralized derivatives of phosphorus, neutralized anti-scalent polymers, and mixtures thereof, a second component from the group comprising chlorite salt and chlorate salt is admixed to the mixture of the water and the first component, and water. The water and the first and second components are present in amounts sufficient to form a stable liquid composition in which there is substantially no conversion of the second component to chlorine dioxide.

Claims

1. A method comprising:

combining a first component and a second component to yield an aqueous composition comprising a mixture of the first component and the second component,

wherein;

the first component is an aqueous solution having a pH of at least 7.0 and comprises a phosphorus derivative, and

the second component is selected from the group consisting of ClO₂⁻

salts in an aqueous solution or in solid form and ClO₃⁻

salts in an aqueous solution or in solid form.

2. The method of claim 1, further comprising storing the aqueous composition in a container.

3. The method of claim 2, further comprising removing a portion of the aqueous composition from the container, and combining the portion of the composition with a source water comprising minerals, microorganisms, or a combination thereof.

4. The method of claim 3, wherein the source water is in a conduit.

5. The method of claim 1, further comprising combining a portion of the aqueous composition with a source water comprising minerals, microorganisms, or a combination thereof.

6. The method of claim 5, wherein the source water is in a conduit.

7. The method of claim 1, wherein the aqueous composition is a stable liquid composition.

8. The method of claim 1, wherein the phosphorus derivative is selected from the group consisting of phosphonates and phosphonic acids.

9. The method of claim 1, wherein the phosphorus derivative is selected from the group consisting of aminotri(methylene phosphonic acid) (ATMP), 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP), ethylenediamine tetra(methylene phosphonic acid) (EDTMPA), hexamethylenediamine tetra(methylene phosphonic acid) (HMDTMPA), diethylenetriamine penta(methylene phosphonic acid) (DETPMPA), bis(hexamethylenetriamine penta(methylene phosphonic acid)) (BHMPTMPA), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), 2-hydroxy phosphonoacetic acid (HPA), phosphinocarboxylic acid (PCA), nitrilotris(methylene phosphonic acid) (NTMP), and diethylenetriamine penta(methylene phosphonic acid) (DTMP).

10. The method of claim 1, wherein the second component in the mixture undergoes substantially no conversion to chlorine dioxide.

19. The method of claim 1, wherein the pH of the aqueous composition is at least 7.0.

11. A method comprising:

flowing source water through a conduit; and

combining an aqueous composition comprising a mixture of a first component and a second component with the source water in the conduit,

wherein the aqueous composition is formed by a process comprising combining the first component and the second component, wherein the first component is an aqueous solution having a pH of at least 7.0 and comprises a phosphorus derivative, and the second component is selected from the group consisting of ClO₂⁻

salts in an aqueous solution or in solid form and ClO₃⁻

salts in an aqueous solution or in solid form.

12. The method of claim 11, wherein the source water comprises minerals, microorganisms, or a combination thereof.

13. The method of claim 11, wherein the second component in the mixture undergoes substantially no conversion to chlorine dioxide.

20. The method of claim 11, wherein the pH of the aqueous composition is at least 7.0.

14. A method comprising:

combining an aqueous composition comprising a mixture of a first component and a second component with water comprising minerals, microorganisms, or a combination thereof, to yield a treated water,

wherein the aqueous composition is formed by a process comprising combining the first component and the second component, wherein the first component is an aqueous solution having a pH of at least 7.0 and comprises a phosphorus derivative, and the second component is selected from the group consisting of ClO₂⁻

salts in an aqueous solution or in solid form and ClO₃⁻

salts in an aqueous solution or in solid form.

15. The method of claim 14, wherein the aqueous composition converts minerals in the water to amorphous mineral deposits on surfaces contacted by the water during evaporation of the treated water.

16. The method of claim 14, wherein the water comprises minerals, and crystalline mineral deposits formed during evaporation of the treated water are non-agglomerated.

17. The method of claim 14, wherein the water comprises microorganisms, and the composition inhibits growth of the microorganisms.

18. The method of claim 14, wherein the second component in the mixture undergoes substantially no conversion to chlorine dioxide.

21. The method of claim 14, wherein the pH of the aqueous composition is at least 7.0.