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Stable product containing chlorine dioxide and preparation method of stable product

A chlorine dioxide and product technology, applied in the fields of botanical equipment and methods, chemicals for biological control, animal repellents, etc., can solve the problem of not producing chlorine dioxide gas, not suitable for long-term storage, and uncontrollable reactions And other issues

Active Publication Date: 2012-12-26
SHENZHEN WANHE PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although there is a proposal to make stabilized chlorine dioxide and water-absorbent resin into a gel-like substance (for example, see Japanese Patent Application Laid-Open No. 61-181532), this method has problems such as basically not generating chlorine dioxide gas.
In order to solve this problem, although a method of irradiating a gel-like substance composed of chlorine dioxide and a water-absorbing resin with ultraviolet rays has been proposed (for example, see Japanese Patent Laid-Open No. 2000-202009), this method must be combined with an ultraviolet irradiation device.
[0005] Although it is proposed to use chlorine dioxide gas solution, chlorite and acidic ph regulators to form pure chlorine dioxide products, and gel-like compositions containing superabsorbent resins (for example, see JP-A 11-278808 bulletin), but due to the decomposition of chlorine dioxide gas solution, it is not suitable for long-term storage
[0006] In addition, although it has been proposed to add an activator, a water-absorbent resin, and a water-retaining agent to an aqueous chlorite solution to gel it (for example, see JP-A-2007-1807), it is necessary to add Chemicals, the reaction after addition is uncontrollable, and a high concentration of chlorine dioxide gas is produced for several days after addition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] In the sepiolite (particle diameter 1-3mm) formed by calcining at 700°C for 3 hours, add sodium chlorite and sodium hydroxide (preformed into an aqueous solution, the concentration is respectively 25%) in the following proportions, After mixing and making the adsorption uniform, vacuum-dry for 5 hours at 70° C. to obtain chlorine dioxide products 1A to 1G of the composition shown below (in the table, the unit of each numerical value is parts by weight, and it can also be understood as weight in most cases. Percentage; the value in brackets in NaOH column is relative to NaClO 2 The molar amount of the base, for example, in the product 1A, every 1 mole is 8 parts by weight of NaClO 2 Calculated, the molar weight of NaOH is 0.14; the value in the water column represents the water content in the final product, showing that the water content in the product 1G reaches 15 parts by weight / 107 parts by weight).

[0078]

NaClO 2

NaOH

water

meerschaum ...

Embodiment 2

[0088] To the sepiolite (particle diameter 1-3mm) that was calcined at 700°C for 3 hours, add sodium chlorite, sodium hydroxide and sodium phosphate (prepared to aqueous solution, the concentration is 20% respectively), after mixing and making the adsorption uniform, vacuum-dry at 70°C for 5 hours, so that the water content in the product is 2% (± 0.5%), and the following composition is obtained: Chlorine products 2A to 2P. Each product designed and prepared comprises 80 parts by weight of sepiolite and 15 parts by weight of NaClO 2 . In each formula shown in the table, the numerical value in the NaOH column represents the molar amount of NaOH relative to every 1 mole of sodium chlorite contained in the formula; similarly, the numerical value in the sodium phosphate column represents the relative Molar parts of sodium phosphate in terms of parts of sodium chlorite.

[0089] Put each 20g of the above-prepared stabilized chlorine dioxide products 2A to 2P into a non-woven bag...

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Abstract

The invention relates to a stable product containing chlorine dioxide and a preparation method of the stable product, and particularly provides the product capable of stably providing chlorine dioxide. The product contains a porous carrier, chlorite attached to the porous carrier, and alkaline matter attached to the porous carrier. The invention also provides a method for generating and / or releasing chlorine dioxide in a basically controllable manner. The method comprises the following steps of: (i) providing the stable chlorine dioxide product according to any one of claims 1 to 10, packaging the product in a packing material (namely insulated material) container capable of isolating moisture and air ventilation before the product is used, so that the product does not generate and / or release chlorine dioxide basically before being used; (ii), when the product is used, opening the container to permit the moisture and air out of the container to contact the product, and generating and / or releasing chlorine dioxide. The product disclosed by the invention has good stability.

Description

technical field [0001] The present invention relates to a stable product containing chlorine dioxide, which can be used to purify the environment, and can also be used for deodorization, sterilization, virus removal, mildew prevention, anticorrosion, etc. when transporting food, etc. A product for stabilizing chlorine dioxide for purpose, and a method involving the use of the product / product to stably generate low-concentration chlorine dioxide gas. Background technique [0002] Chlorine dioxide is a strong oxidizing agent, which is considered to have good prospects in deodorization, sterilization, virus removal, mildew prevention, antisepsis, bleaching, etc. But because chlorine dioxide is very unstable, it is not suitable for long-term storage and transportation, and there will be problems such as explosion hazards in high concentrations. In order to solve these problems, people have tried to use many methods. [0003] For example, CN1915041A (Chinese patent application n...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01N25/08A01N25/22A01P1/00
Inventor 马俊衷期群谢华张义凤
Owner SHENZHEN WANHE PHARMA
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