Disinfecting and mineral deposit eliminating composition and methods

• US 8,513,176 B2
• Filed: 08/02/2006
• Issued: 08/20/2013
• 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:
  US11/498,495
• Publication Number:
  US 20080032905A1
• Time in Patent Office: 2,575 Days
• Field of Search: 510/178, 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 water conduit treating composition comprising a pH of 7.0 or higher and consisting essentially of a first component, a second component and water, wherein the water conduit treating composition is prepared by a process comprising:

mixing the first component, the second component, and water such that the first and second components are present in amounts sufficient to form a stable liquid composition having a pH of 7.0 or higher,

wherein;

the first component is neutralized 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC),

the second component is selected from ClO₂⁻

salts and ClO₃⁻

salts, and

the water conduit treating composition does not harm plants when added to a source water.

2. The water conduit treating composition of claim 1, wherein the second component is a ClO₂⁻

salt.

3. The water conduit treating composition of claim 2, wherein the second component is NaClO₂.

4. The water conduit treating composition of claim 3, wherein the second component is an aqueous solution of NaClO₂ with a concentration of about 1% to about 25%.

5. A water conduit treating composition comprising a pH of 7.0 or higher and consisting essentially of a first component, a second component, and water, wherein the water conduit treating composition is prepared by a process comprising:

mixing the first component, the second component, and water such that the first and second components are present in amounts sufficient to form a stable liquid composition having a pH of 7.0 or higher,

wherein;

the first component is neutralized 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), and

the second component is selected from ClO₂⁻

salts and ClO₃⁻

salts.

6. The water conduit treating composition of claim 5, wherein the second component is a ClO₂⁻

salt.

7. The water conduit treating composition of claim 6, wherein the second component is NaClO₂.

8. The water conduit treating composition of claim 7, wherein the second component is an aqueous solution of NaClO₂ with a concentration of about 1% to about 25%.