Product capable of delaying generation and releasing of chlorine dioxide and preparation method thereof

Abstract

The invention relates to a product capable of delaying generation and releasing of chlorine dioxide and a manufacture method thereof. The product comprises a porous carrier, chlorite adhered onto the porous carrier and alkaline matters adhered onto the porous carrier. The invention further discloses the method for manufacturing stabilized chlorine dioxide products. The method includes steps of: (a) preparing aqueous solution containing the chlorine dioxide and the alkaline matters; (b) preparing aqueous suspension containing organic hydrocarbon, wherein the aqueous suspension containing the organic hydrocarbon can be prepared independently or be prepared together with the chlorine dioxide and the alkaline matters in solution obtained in the step (a); (c) adding the solution obtained in the step (a) and the step (b) (if the solution is prepared in the step (b)) into the porous carrier, and evenly mixing the solution so as to enable the porous carrier to absorb the chlorine dioxide, the alkaline matters and optional organic hydrocarbon and alkaline salt in the solution.; and (d) drying the mixture obtained in the step (c) to enable the water content to be lower than 10%, and packaging in sealing mode to obtain the product.

Description

technical field [0001] The invention relates to a product for delaying the production and release of chlorine dioxide. The product can be used to purify the environment, and can also be used for deodorization, sterilization, virus removal, mildew prevention, and anticorrosion when transporting food. A chlorine dioxide stabilized product for these purposes, and a method involving the use of the product / product for the delayed and stable generation of chlorine dioxide gas at low concentrations. 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 examp...

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