US4574084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of a modified aqueous chlorite solution, the solution prepared by this process and the use thereof
Assignee: Individual
•
Filing: 1984-02-02
•
Granted: 1986-03-04
•
Expires: 2004-02-02
Abstract
Abstract A process for the preparation of a stabilized, modified, aqueous chlorite solution with a peroxy compound content is described. A weak, acid, aqueous solution of a peroxy compound substantially stable therein is provided and into this solution is metered an aqueous solution of a chlorite until the pH-value of 7 is exceeded, accompanied by the formation of a greenish solution. The peroxy compounds can in particular be peroxy sulphates, percarbonates and perborates of alkali metal or alkaline earth metals, as well as hydrogen peroxide. The chlorite solutions obtainable according to the above process are stable over a long period and have a high oxidative activity, particularly when used as a biocide. The biocidal action can be used with particular advantage in water treatment and in the external treatment of skin diseases.
Inventors
- 👤 Peter Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:34
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/08; C01B11/10; A; A01; A01N; A01N59/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
72 words
A process for the preparation of a stabilized, modified, aqueous chlorite solution comprising the steps of: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 2
Dependent Claim
72 words
A process for the preparation of a stabilized, modified, aqueous chlorite solution comprising the steps of: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 3
Dependent Claim
11 words
Process according to claim 1 wherein said peroxy compound is inorganic.
Claim 4
Dependent Claim
31 words
Process according to claim 1 wherein said inorganic peroxy compound is selected from the group consisting of alkali metal persulfates, percarbonates, perborates, peroxides, alkaline earth metal persulfates, percarbonates, perborates and peroxides.
Claim 5
Dependent Claim
12 words
Process according to claim 1 wherein said peroxy compound is hydrogen peroxide.
Claim 6
Dependent Claim
35 words
Process according to claim 1 wherein said peroxy compound is added to said aqueous acid solution to form a 0.001 to 0.01 molar concentration of said peroxy compound in said stabilized, modified, aqueous chlorite solution.
Claim 7
Dependent Claim
17 words
Process according to claim 1 wherein said aqueous acid solution has a pH of 1 or less.
Claim 8
Dependent Claim
19 words
Process according to claim 1 wherein said stabilized, modified, aqueous chlorite solution is prepared under an inert gas atmosphere.
Claim 9
Dependent Claim
17 words
Process according to claim 1 wherein said stabilized, modified, aqueous chlorite solution further comprises a water-soluble phosphate.
Claim 10
Dependent Claim
12 words
Process according to claim 8 wherein said water-soluble phosphate is sodium meta-polyphosphate.
Claim 11
Dependent Claim
67 words
A stabilized, modified, aqueous chlorite solution prepared by the steps comprising: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 12
Dependent Claim
67 words
A stabilized, modified, aqueous chlorite solution prepared by the steps comprising: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 13
Dependent Claim
13 words
The stabilized chlorite solution of claim 10 wherein said peroxy compound is inorganic.
Claim 14
Dependent Claim
33 words
The stabilized chlorite solution of claim 10 wherein said inorganic peroxy compound is selected from the group consisting of alkali metal persulfates, percarbonates, perborates, peroxides, alkaline earth metal persulfates, percarbonates, perborates and peroxides.
Claim 15
Dependent Claim
14 words
The stabilized chlorite solution of claim 10 wherein said peroxy compound is hydrogen peroxide.
Claim 16
Dependent Claim
37 words
The stabilized chlorite solution of claim 10 wherein said peroxy compound is added to said aqueous acid solution to form a 0.001 to 0.01 molar concentration of said peroxy compound in said stabilized, modified, aqueous chlorite solution.
Claim 17
Dependent Claim
19 words
The stabilized chlorite solution of claim 10 wherein said aqueous acid solution has a pH of 1 or less.
Claim 18
Dependent Claim
21 words
The stabilized chlorite solution of claim 10 wherein said stabilized, modified, aqueous chlorite solution is prepared under an inert gas atmosphere.
Claim 19
Dependent Claim
18 words
The stabilized chlorite solution of claim 10 wherein said stabilized, modified, aqueous chlorite solution contains a water-soluble phosphate.
Claim 20
Dependent Claim
14 words
The stabilized chlorite solution of claim 17 wherein said water-soluble phosphate is sodium meta-polyphosphate.
Claim 21
Independent Claim
96 words
A method for treating a mammal having a skin disease or skin irritation which comprises topically administering to a mammal in need of such treatment an effective amount of a stabilized, modified, aqueous chlorite solution prepared by the steps including: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 22
Independent Claim
96 words
A method for treating a mammal having a skin disease or skin irritation which comprises topically administering to a mammal in need of such treatment an effective amount of a stabilized, modified, aqueous chlorite solution prepared by the steps including: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 23
Independent Claim
89 words
A method for the biocidal treatment of swimming pool water which comprises introducing to the water circuit of a swimming pool a stabilized, modified, a aqueous chlorite solution prepared by the steps including: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
Claim 24
Independent Claim
89 words
A method for the biocidal treatment of swimming pool water which comprises introducing to the water circuit of a swimming pool a stabilized, modified, a aqueous chlorite solution prepared by the steps including: providing an aqueous acid solution having a pH of less than about 3; adding a peroxy compound to said aqueous acid solution; and introducing an aqueous chlorite solution into the acid solution to which said peroxy compound has been added, until the pH of said acid solution exceeds 7 and the solution becomes a greenish color.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |