Search

TW-I916331-B - CHLORINE DIOXIDE GENERATOR

Abstract

This invention provides a method for miniaturizing the device and safely carrying (transporting) a source of chlorine dioxide gas, and an apparatus for efficiently generating chlorine dioxide gas. An apparatus (X) for generating chlorine dioxide comprises: a fragile first containment container (10) configured to release its contents by applying external force and sealed with an aqueous solution of chlorite; a water-soluble second containment container (20) containing a solid composition containing a second component; and an outer container (30) containing the first containment container (10) and the second containment container (20) and provided with a venting section (31).

Inventors

  • HIRATSUKA, Naofumi
  • OKUYAMA, MAIKO
  • NAKAJIMA, MASAHIRO

Assignees

  • 日商大幸藥品股份有限公司

Dates

Publication Date
20260301
Application Date
20200901
Priority Date
20190902

Claims (9)

  1. An apparatus for generating chlorine dioxide comprises a first component, chlorite, reacting with a second component to generate chlorine dioxide gas, and further comprising: a fragile, bag-shaped first container configured to release its contents by applying external force and sealing an aqueous solution of chlorite; a water-soluble, bag-shaped second container containing a solid composition containing the aforementioned second component; and a bag-shaped outer container containing the first and second containers and having a ventilated portion, wherein the first and second containers are stacked within the outer container, and the second component is an acidic substance.
  2. An apparatus for generating chlorine dioxide comprises a first component, chlorite, reacting with a second component to generate chlorine dioxide gas, and further comprising: a fragile, bag-shaped first container configured to release its contents by applying external force and sealing an aqueous solution of the second component; a water-soluble, bag-shaped second container containing a solid composition containing the aforementioned chlorite; and a bag-shaped outer container housing the first and second containers and having a venting portion, wherein the first and second containers are stacked within the outer container, and the second component is an acidic substance.
  3. As in claim 1 or 2, the apparatus for generating chlorine dioxide, wherein the aforementioned first containment container is composed of at least a multilayer film consisting of, in sequence, the following layers: an easily peelable layer containing polyester resin, an adhesive layer, and a barrier layer having a vapor-deposited portion based on polyester resin.
  4. As in claim 3, the apparatus for generating chlorine dioxide, wherein the aforementioned peelable layer is an interlayer peelable membrane.
  5. As in claim 1 or 2, the apparatus for generating chlorine dioxide, wherein the aforementioned venting section is constructed by processing a synthetic resin material into a non-woven fabric.
  6. As in claim 1 or 2, the apparatus for generating chlorine dioxide, wherein the aforementioned solid component is a powder.
  7. As in claim 1 or 2, the apparatus for generating chlorine dioxide, wherein the aforementioned outer container is rectangular in top view, and the aforementioned venting section is planar.
  8. As in the apparatus for generating chlorine dioxide in claim 1 or 2, wherein the aforementioned acidic substance is a phosphate, and the aforementioned chlorite is sodium chlorite or potassium chlorite.
  9. As in the apparatus for generating chlorine dioxide according to claim 1 or 2, the concentration of the aforementioned chlorite is 0.1 to 30% by weight.

Description

Device for producing chlorine dioxide The present invention relates to an apparatus for generating chlorine dioxide by reacting a first component, chlorite, with a second component that reacts with the chlorite to generate chlorine dioxide gas. Previously, apparatus or devices for reacting a solution of chlorite with an acidic substance to produce chlorine dioxide gas were known (e.g., Patent 1). [Prior Art Documents] [Patent Documents] [Patent Document 1] Japanese Patent Application Publication No. 2007-145654 [The problem the invention aims to solve] However, previous chlorine dioxide generating devices were not developed with transportation in mind; they were typically placed on tiles or floors, or were mostly large-scale. Even when miniaturized for transport, problems such as liquid dripping from within the device still exist. While liquid dripping can be prevented by ensuring airtightness, ensuring container airtightness, on the other hand, creates new problems that hinder the escape of chlorine dioxide gas. Furthermore, in situations where people are in an environment, such as when using chlorine dioxide gas to disinfect a house, interior, or other similar space, it is necessary to generate a certain low concentration of chlorine dioxide gas stably over a long period of time. To continuously generate low concentrations of chlorine dioxide gas, one could consider, for example, reducing the concentration of chlorite or acidic substances used. In cases where chlorine dioxide gas is generated within a container, the amount produced depends on factors such as the area of the gas-liquid interface, thus limiting the design of the container shape. Furthermore, from a mass production perspective, containers are sometimes made of synthetic resins. However, when using synthetic resin containers to generate chlorine dioxide, there is a risk that some of the generated chlorine dioxide may be adsorbed by the container. Even in cases where the generated chlorine dioxide concentration is low, this adsorption effect cannot be ignored. Therefore, it is desirable to generate chlorine dioxide gas efficiently and effectively, regardless of the container's shape or material, allowing for the efficient reaction of chlorite and acidic substances. This invention was made in view of the above-mentioned circumstances, and its purpose is to provide a method for miniaturizing the device, safely carrying (transporting) the source of chlorine dioxide gas, and efficiently generating chlorine dioxide gas. [Means for solving the problem] The apparatus for generating chlorine dioxide of the present invention, which aims to achieve the above-mentioned objective, is an apparatus for generating chlorine dioxide by reacting a first component, chlorite, with a second component that reacts with the chlorite to generate chlorine dioxide gas. Its first structural feature is that it comprises: a fragile first container that is configured to release its contents by applying external force and is sealed with an aqueous solution of chlorite; a water-soluble second container that contains a solid composition containing the aforementioned second component; and an outer container that contains the aforementioned first container and the aforementioned second container and is provided with a venting section. According to this configuration, since the device for generating chlorine dioxide can be enclosed in an outer container containing a first containment container and a second containment container, the device can be miniaturized to be highly portable and mass-producible. Furthermore, according to this configuration, since the first containing container seals the aqueous solution of chlorite within the outer container, and the second containing container contains the second component, the aqueous solution of chlorite and the second component can be contained in a non-contact state. In this state, by applying an external force such as pressing the outer container to deform it and transmitting the external force to the first containing container, the fragile first containing container contained inside can be easily destroyed. At this time, the aqueous solution of chlorite can be released from the first containing container into the interior of the outer container. The released aqueous solution of chlorite comes into contact with the second containing container, and at least a portion of the water-soluble second containing container is dissolved or dispersed. Thereby, the aqueous solution of chlorite comes into contact with and reacts with the second component contained in the second containing container to generate chlorine dioxide gas. The chlorine dioxide gas generated inside the outer container can be released to the outside of the outer container through the ventilated part. According to this configuration, the second component is contained within a second containment container, existing partially inside the outer container. By dissolving or dis