CN105036083A - Aqueous chlorine dioxide solution preservation method - Google Patents
Aqueous chlorine dioxide solution preservation method Download PDFInfo
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- CN105036083A CN105036083A CN201510396903.0A CN201510396903A CN105036083A CN 105036083 A CN105036083 A CN 105036083A CN 201510396903 A CN201510396903 A CN 201510396903A CN 105036083 A CN105036083 A CN 105036083A
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- Prior art keywords
- chlorine dioxide
- aqueous solution
- liquid
- dioxide
- frozen
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention provides an aqueous chlorine dioxide solution preservation method. The method comprises steps of: (1) after electrolyzing salt water, performing a reaction to generate chlorine dioxide gas; (2) mixing the chlorine dioxide gas and liquid water to generate a gas-liquid mixture of aqueous chlorine dioxide solution. (3) filling a container with the aqueous chlorine dioxide solution with a height of seven in ten. (4) freezing and cooling down the aqueous chlorine dioxide solution; and (5) cryopreserving the frozen and cooled aqueous chlorine dioxide solution. Through the above steps, the present invention provides a preservation method which can avoid volatilization of chlorine dioxide and therefore maintain the concentration.
Description
Technical field
The present invention is a kind of store method of aqueous solution of chlorine dioxide, refers to that one can avoid dioxide peroxide to volatilize especially excessive loose with the store method maintaining concentration.
Background technology
Press, due to dioxide peroxide (Chlorinedioxide, ClO2 :) gas itself has not paired free active electrons, dioxide peroxide is made to have potent oxidation capacity, can be used to oxidizing bacteria, virus, the protein of the pathogenic agent such as mould, victory peptide, DNA or RNA, to eliminate these pathogenic agent, and user can not be provided easy to use due to the dioxide peroxide of gaseous state, therefore current in health care, food-processing, environment protection process water, livestock-raising and sewage disposal ... etc. in industry, they are many by formation aqueous solution of chlorine dioxide soluble in water for dioxide peroxide, user is made to be easy to use aqueous solution of chlorine dioxide to carry out disinfection, sterilization, deodorizing.
And look into, because the titanium dioxide in aqueous solution of chlorine dioxide is still present in the aqueous solution with the aspect of gas, its be easy to because of solution rock stirring, sky asks the problem such as dividing potential drop or container material quality, chlorine dioxide in aqueous solution of chlorine dioxide easily volatilizees loss, dioxy rate concentration in solution is reduced gradually, and causes the storage life shorter, inconvenient to use and to be improved the disappearance of manufacture cost to be modified.
Again, the preparation of current chlorine dioxide, system by chlorine dioxide absorber in the solution such as sodium carbonate (Na2CO3), Sodium Tetraborate (Na2B4O710H2O), hydrogen peroxide (H2O2) or sodium hydroxide (NaOH), the kenel allowing dioxide peroxide convert chlorite (ClO2-) to exists, by the activation of this solution or acidifying in time using, to produce chlorine dioxide; This two reagent mix, by chlorite and acids two kinds of reagent, adds in appropriate water by the opposing party's genealogy of law before use, makes chlorite and acids can produce reaction to obtain ClO 2 solution; Above-mentioned two kinds of methods, though can prepare ClO 2 solution again before use, reduce the volatilization release of chlorine dioxide; Only these two kinds of methods all need to prepare with some reagent before use, and have upper loaded down with trivial details, the complicated and disappearance person of the danger of operation.
Summary of the invention
The object of the present invention, is namely the disappearance improving above-mentioned dioxide peroxide store method, excessive loose with the store method maintaining concentration in order to do providing one that dioxide peroxide can be avoided to volatilize.
For achieving the above object, the store method of the aqueous solution of chlorine dioxide of the present invention, includes following steps:
Electrolysis generates: reacted after electrolysis by salt solution and generate chlorine dioxide;
Gas-liquid mixed: the chlorine dioxide of above-mentioned steps is mixed with water liquid and makes formation aqueous solution of chlorine dioxide;
Filling sealed: the aqueous solution of chlorine dioxide of above-mentioned steps to be filled in container and to reach seven points of full height;
Frozen cooling: by the aqueous solution of chlorine dioxide frozen cooling extremely-5O DEG C ~ 0 DEG C be loaded in container, water liquid is congealed into ice, gaseous chlorine dioxide then condenses into Liquid chlorine dioxide, makes solid ice be able to ice-boundly block Liquid chlorine dioxide, the unlikely volatilization of Liquid chlorine dioxide is overflow loose;
Stored frozen: by the aqueous solution of chlorine dioxide after above-mentioned frozen cooling with-59 DEG C ~ 0 DEG C stored frozen, make it maintain the aspect of ice cube and Liquid chlorine dioxide.
Above step is excessive loose with the store method maintaining concentration in order to do providing one that dioxide peroxide can be avoided to volatilize.
Accompanying drawing explanation
The flow process block diagram of the 1st figure system the present invention.
The view of the 2nd figure system stored frozen aqueous solution of chlorine dioxide of the present invention.
The view of the 3rd figure system stored frozen aqueous solution of chlorine dioxide of the present invention.
Nomenclature
10, container; 11, capping; 20, Liquid chlorine dioxide; 30, solid ice.
Embodiment
The technique means that relevant the present invention is used by achieving the goal and method thereof, hereby sincerely coordinate the schematic diagram of the 1st figure shownschematically schema and the 2nd figure again, be described in detail as follows:
Schema as shown in Figure 1, the store method of the aqueous solution of chlorine dioxide of the present invention, includes following steps:
Electrolysis generates: reacted after electrolysis by salt solution and generate chlorine dioxide (ClO2);
Gas-liquid mixed: the chlorine dioxide of above-mentioned steps is mixed with water liquid and makes formation aqueous solution of chlorine dioxide;
Filling sealed: the aqueous solution of chlorine dioxide of above-mentioned steps to be filled in container and to reach seven points of full height;
Frozen cooling: by container and the aqueous solution of chlorine dioxide frozen cooling that loaded thereof to-59 DEG C ~ 0 DEG C, now water liquid condenses into solid ice, gaseous chlorine dioxide then condenses formation Liquid chlorine dioxide, simultaneously because of water liquid cooling freeze cooling down freeze time, its crystalline structure can rearrange, make water in freezing process, aqueous solution of chlorine dioxide is arranged from, when water liquid in container condenses form solid ice completely, solid ice is closed and blocks aqueous solution of chlorine dioxide, the unlikely volatilization of Liquid chlorine dioxide is overflow loose;
Stored frozen: by the aqueous solution of chlorine dioxide after above-mentioned frozen cooling with-59 DEG C ~ 0 DEG C stored frozen, make it can maintain the aspect of ice cube and Liquid chlorine dioxide, volatilizing to avoid the Liquid chlorine dioxide aqueous solution, it is loose to overflow.
Above step, physical properties according to dioxide peroxide (ClO2) and water liquid (H2O) is known, dioxide peroxide (ClO2) boiling point is 11 DEG C, fusing point is-59 DEG C, the boiling point of water liquid (H2O) is 100 DEG C, fusing point is 0 DEG C, when in normal temperature and pressure (25 DEG C, when dioxide peroxide and water liquid being mixed to form aqueous solution of chlorine dioxide 1atm), this dioxide peroxide system is present in water liquid in the mode of gaseous state, and when by aqueous solution of chlorine dioxide frozen cooling to-59 DEG C ~ 0 DEG C time, boiling point because of dioxide peroxide is 11 DEG C, namely chlorine dioxide now in aqueous solution of chlorine dioxide is condensed by gaseous state and is changing into liquid state, and due to the fusing point of water liquid be 0 DEG C, namely water liquid condensed by liquid state and form solid-state ice cube, now, when cooling icing when water liquid frozen cooling, its crystalline structure can rearrange, make water in freezing process, aqueous solution of chlorine dioxide is arranged from, when water liquid in container forms solid ice completely, solid ice is made to be able to closed aqueous solution of chlorine dioxide, as shown in Figure 2, it is that water liquid is when freezing, this Liquid chlorine dioxide by solid-state ice raft from the affecting of terrestrial attraction, aqueous solution of chlorine dioxide is made to sink down into container bottom, and solid ice coagulable is above aqueous solution of chlorine dioxide, make solid ice be able to ice-bound covering Liquid chlorine dioxide, the unlikely volatilization of Liquid chlorine dioxide is overflow loose, or as shown in Figure 3, when the water liquid near outside of containers first contacts low temperature and congeals into ice, the row should frozen by water liquid, from impact, makes Liquid chlorine dioxide by solid ice around ice-bound, solid ice is closed and blocks Liquid chlorine dioxide, the unlikely volatilization of Liquid chlorine dioxide is overflow loose, therefore when the state of lasting maintenance Freezing (-59 DEG C ~ 0 DEG C), namely this Liquid chlorine dioxide continues the capping by ice cube and unlikely volatilization is overflow loose, and then can maintain the concentration of contained dioxide peroxide in it.
When for using aqueous solution of chlorine dioxide to make sterilization operation, freezing aqueous solution of chlorine dioxide can be risen again and thaw, when its tempering temperature reaches 0 DEG C ~ 10 DEG C, it is aqueous that namely ice cube melts formation water, dioxide peroxide is still liquid, it is now the aqueous solution of chlorine dioxide of liquid-liquid shape, and when rising again to normal temperature (as: 25 DEG C), boiling point because of dioxide peroxide is 11 DEG C, namely Liquid chlorine dioxide changes formation gaseous chlorine dioxide, liquid water liquid then remains aqueous, namely the aqueous solution of chlorine dioxide of this liquid-liquid shape reverts back to the aqueous aqueous solution of chlorine dioxide of gas one containing chlorine dioxide, and because dioxide peroxide in it (ClO2) is when the freezing cryopreservation, block by the ice-bound of solid ice, this dioxide peroxide (ClO2) does not volatilize to overflow and falls apart, when the aqueous solution of chlorine dioxide that formation gas one of rising again is aqueous, the concentration of its dioxide peroxide (ClO2), content and unlikelyly significantly to reduce, detract, so, user can be provided to use aqueous solution of chlorine dioxide to the operator of the sterilization that carries out disinfection.
By being, from the above and graphic embodiment, the present invention really has following advantage:
(1) system of the present invention utilizes salt solution electrolysis to produce chlorine dioxide to prepare aqueous solution of chlorine dioxide, and its chlorine dioxide purity is purer and do not contain other material, and its preparation method is comparatively simple, safety, and without unnecessary loaded down with trivial details mixing step.
(2) because the present invention utilizes the physical properties of dioxide peroxide and water liquid institute tool boiling point, fusing point, aqueous solution of chlorine dioxide to be lowered the temperature freezing and cryopreservation, after forming solid ice by the condensation of water liquid simultaneously, this solid ice is closed to be blocked Liquid chlorine dioxide volatilization and overflows loose, and effectively can preserve aqueous solution of chlorine dioxide and maintain its concentration and shelf time person.
(3) again, utilize the aqueous solution of chlorine dioxide that the method for the present invention is preserved, it overflow loose because effectively can reduce Liquid chlorine dioxide volatilization, when the aqueous solution of chlorine dioxide of low temperature is risen again to normal temperature, unlikely significantly reduction of concentration of its dioxide peroxide and affect follow-up sterilization operation, has in fact and uses upper accessibility and stability person.
Therefore the mode that the present invention really can deposit by Freezing, makes solid ice be closed and block Liquid chlorine dioxide, the unlikely volatilization of dioxide peroxide is overflow loose store method; Therefore, the present invention really has remarkable progressive, and its method is really unprecedented, has really met patent of invention important document, and whence proposes patent application in accordance with the law, and prays gift patent for praying, to feeling moral just.
The above; be only the possible embodiments of the present invention in order to explanation; therefore can not limit the protection domain of the present invention with it, lift and severally have the knack of this those skilled in the art according to the impartial change or modify for it of specification sheets of the present invention and claim institute, the protection domain that all still should belong to the present invention and contained.
Claims (1)
1. a store method for aqueous solution of chlorine dioxide, includes following steps:
Electrolysis generates: reacted after electrolysis by salt solution and generate chlorine dioxide;
Gas-liquid mixed: the chlorine dioxide of above-mentioned steps is mixed with water liquid and makes formation aqueous solution of chlorine dioxide;
Filling sealed: the aqueous solution of chlorine dioxide of above-mentioned steps to be filled in container and to reach seven points of full height;
Frozen cooling: by container and wherein the two gasification chlorine water solution frozen coolings that load to-59 DEG C ~ 0 DEG C, water liquid is made to condense into solid ice, gaseous chlorine dioxide then condenses and goes into Liquid chlorine dioxide, make solid ice be closed and block aqueous solution of chlorine dioxide, the unlikely volatilization of Liquid chlorine dioxide is overflow loose;
Stored frozen: by the aqueous solution of chlorine dioxide after above-mentioned frozen cooling with-59 DEG C ~ 0 DEG C stored frozen, make it maintain the aspect of ice cube and Liquid chlorine dioxide;
Above step is excessive loose with the store method maintaining concentration in order to do providing one that dioxide peroxide can be avoided to volatilize.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396903.0A CN105036083A (en) | 2015-07-08 | 2015-07-08 | Aqueous chlorine dioxide solution preservation method |
| PCT/CN2015/091276 WO2017004900A1 (en) | 2015-07-08 | 2015-09-30 | Chlorine dioxide solution preservation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396903.0A CN105036083A (en) | 2015-07-08 | 2015-07-08 | Aqueous chlorine dioxide solution preservation method |
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| CN105036083A true CN105036083A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510396903.0A Pending CN105036083A (en) | 2015-07-08 | 2015-07-08 | Aqueous chlorine dioxide solution preservation method |
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| CN (1) | CN105036083A (en) |
| WO (1) | WO2017004900A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275804Y (en) * | 1997-02-02 | 1998-03-11 | 曹瑜 | Chlorine dioxide generator |
| WO2000048470A1 (en) * | 1999-02-18 | 2000-08-24 | Alcide Corporation | Frozen chlorine dioxide-containing composition and methods related thereto |
| CN101305734A (en) * | 2008-05-29 | 2008-11-19 | 龙泽云 | Manufacturing method of chlorine dioxide aqueous solution disinfectant with high stability |
| CN101391749A (en) * | 2008-10-21 | 2009-03-25 | 四川中物凯沃科技有限公司 | Process for preparing chlorine dioxide for pulp bleaching and apparatus thereof |
| CN101785458A (en) * | 2009-11-05 | 2010-07-28 | 龙庆厚 | Method for improving stability of chlorine dioxide water solution |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052957C (en) * | 1996-12-18 | 2000-05-31 | 丁章迅 | Method for production of stable chlorine dioxide |
| CN1186250C (en) * | 2002-10-31 | 2005-01-26 | 覃庆林 | Method for producing stable chlorine dioxide with high purity by using gas stripping technique |
| WO2011086147A1 (en) * | 2010-01-18 | 2011-07-21 | Akzo Nobel Chemicals International B.V. | Process for the production of chlorine dioxide |
-
2015
- 2015-07-08 CN CN201510396903.0A patent/CN105036083A/en active Pending
- 2015-09-30 WO PCT/CN2015/091276 patent/WO2017004900A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2275804Y (en) * | 1997-02-02 | 1998-03-11 | 曹瑜 | Chlorine dioxide generator |
| WO2000048470A1 (en) * | 1999-02-18 | 2000-08-24 | Alcide Corporation | Frozen chlorine dioxide-containing composition and methods related thereto |
| CN101305734A (en) * | 2008-05-29 | 2008-11-19 | 龙泽云 | Manufacturing method of chlorine dioxide aqueous solution disinfectant with high stability |
| CN101391749A (en) * | 2008-10-21 | 2009-03-25 | 四川中物凯沃科技有限公司 | Process for preparing chlorine dioxide for pulp bleaching and apparatus thereof |
| CN101785458A (en) * | 2009-11-05 | 2010-07-28 | 龙庆厚 | Method for improving stability of chlorine dioxide water solution |
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| WO2017004900A1 (en) | 2017-01-12 |
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