TWI422432B - A method for making a slow releasing device for slowing releasing chlorine dioxide - Google Patents

Description

Chlorine dioxide gas slow release device and manufacturing method thereof

The present invention relates to a chlorine dioxide gas slow release device and a method for producing the same, and more particularly to a method for adsorbing chlorine dioxide gas to a carrier to provide a slow, long-acting release and a product thereof.

Chlorine Dioxide (ClO ₂ ) is a strong oxidant with high efficiency of disinfection and bactericidal action. It has been recognized as a good disinfectant and water purifier with excellent performance, and the World Health Organization has listed chlorine dioxide. It is an A1 grade advanced safety disinfectant.

Due to the chlorine dioxide liquid preparation, chlorine dioxide gas is unstable and easily decomposed, and its storage, transportation and use are subject to many restrictions. Therefore, solid chlorine dioxide is produced (that is, the so-called stable chlorine dioxide) ), mainly divided into two major categories

One for chlorine dioxide gas for processing, the first preformed chlorite ion (ClO ₂ ^-) stable chlorine dioxide solution (which in fact is the use of the preparation of the chlorite ion (ClO ₂ ^-) solution Into the alkaline buffer solution), and then directly adsorbed by the solid agent and the stabilizer to form a so-called stable solid chlorine dioxide, and then mixed with a solid acid agent; second, sodium chlorite or chlorine Sodium is used as a matrix, with a gel material as an auxiliary material, and an acidic substance as an activator, which is prepared by mixing and packaging.

The above two categories are prepared into a solid form of powder, granules or tablets to achieve a slow-release solid product that slowly absorbs moisture, or if necessary, is put into water to dissolve the chemical reagent to obtain chlorine dioxide. An aqueous solution of gas. For example, Taiwan Patent Application No. 087107160, 096102799, 096105956, 096116154, and U.S. Patent No. 4,689,169, and the like.

Since the above method has the disadvantages of obtaining gaseous chlorine dioxide, that is, reaction by-products and residual unreacted organic matter and inorganic substances, chlorine dioxide gas (ClO ₂ ) and oxidizable substances in water are rapidly further developed. The reaction produces bismuth chlorite (ClO ₂ ^- ), bismuth chlorate (ClO ₃ ^- ) and cesium chloride (Cl ^- ) instead of the chlorine dioxide gas molecule (ClO ₂ ) we need. In the market, in addition to the above-mentioned stable chlorine dioxide products, there are currently chlorine dioxide aqueous products on the market, such as the patents of U.S. Patent Nos. 5,296,108 and 5,993,864, and there are still many other problems and defects in these products. The description is as follows: (1) Generally, traditional manufacturers, whether by electrolysis or chemical method, dissolve chlorine dioxide into water and transport or store it as an aqueous solution. The disadvantage is that chlorine dioxide gas will not be in water. It decays steadily and decomposes rapidly into various anionic forms such as ClO ₂ ^- , ClO ₃ ^- and Cl ^- . (2) Place the equipment of the electrolysis method at the location of the user, and start the equipment to produce the chlorine dioxide aqueous solution when it is used in the field, which is convenient for ready-to-use. The disadvantage is that it requires professional technicians to operate, and the manufacturing process is not Convenient for the general public. (3) At the time and place of use of the chemical method, it is still used on site. The various chemical reagents are mixed into the water and reacted in water to produce an aqueous solution of chlorine dioxide. The disadvantage is that it must be avoided too much. Residual chemicals, by-products, etc., which are not completely reacted, remain in the reaction and in the aqueous solution.

In view of the foregoing various prior art problems, the inventors believe that there should be an improved method by which a product which can specifically improve the foregoing is manufactured. To this end, a method for manufacturing a chlorine dioxide gas slow release device is designed. The technical means comprises: taking chlorine dioxide gas into a cavity in which a plurality of granular carriers are placed, the surface of each carrier having a plurality of pores: and the cavity Provided in a cold room environment below 30 ° C; so that the chlorine dioxide gas is adsorbed by the plurality of granular carriers; and the carrier in the container is filled in a container in a cold room environment below 30 ° C, and then The container is closed.

Therefore, a chlorine dioxide gas slow release device is obtained according to the foregoing method, comprising a sealed container, the container is provided with a plurality of granular carriers, and each carrier surface has a plurality of pores, and the container is internally filled with the plurality of granular carriers Adsorbed with chlorine dioxide gas.

In the foregoing method and product, pre-made chlorine dioxide gas (the chlorine dioxide gas may be pre-formed by electrolysis or chemical method), and a plurality of porous multi-grain-shaped carriers are used as adsorbent materials to properly and effectively cool the environment. Auxiliary plural particulate carrier adsorbs gas form molecules of chlorine dioxide, and is packaged in a special container (preferably airtight, opaque) to form a chlorine dioxide gas slow release device, so that the user can readily Direct release and access to chlorine dioxide gas. This invention does address the long-standing limitations of chlorine dioxide gas: unstable, easily decomposable, unusable, and difficult to transport. And made A light-weight, easy-to-carry, long-term storage, ready-to-use chlorine dioxide gas product that simplifies use and facilitates access to multiple effects that are not required.

(10) ‧‧‧ Sources of chlorine dioxide production

(11)‧‧‧Intake line

(12)‧‧‧ Purification unit

(2) ‧‧‧ 容容

(21) ‧ ‧ carrier

(211) ‧ ‧ pores

(3) ‧‧‧ tank

(3A) ‧ ‧ freezer

(31)‧‧‧Electronic temperature control device

(41)‧‧‧Exhaust line

(42) ‧‧‧Circulation lines

(43) ‧‧‧ Venturi tube

(44) ‧ ‧ Circulating pump

(45) ‧‧ ‧ absorption tank

(5)‧‧‧ Containers

(51)‧‧‧ Cover

(511)‧‧‧ holes

The first figure is a flow chart of the present invention

The second figure is a schematic diagram of the method (1) of the method of the present invention.

The third figure is a schematic diagram of the method (2) of the method of the present invention.

The fourth figure is a schematic diagram of another shape application of the cuvette of the present invention.

Figure 5A is a schematic view of the finished product of the present invention

Figure 5B is a schematic view of the hole through which the present invention is used.

The preparation method and technical means of the present invention will be described below in conjunction with the drawings, and the contents, features and embodiments of the present invention will be described, and an understanding of the review will be provided.

Referring to the first figure, the present invention relates to a method for manufacturing a chlorine dioxide gas slow release device. The specific embodiment includes, but is not limited to, the following steps:

1. Pre-manufacturing chlorine dioxide gas according to electrolysis or chemical method;

2. Purifying chlorine dioxide gas;

3. taking chlorine dioxide gas into a cavity (2) in which a plurality of granular carriers (21) are placed, the container (2) may be selected from glass material, plastic material, stainless steel material, etc., the container (2) may be The shape of the conical flask as shown in the fourth figure, or a triangle, a sphere, a square, and the like. The surface of each carrier (21) has a plurality of pores (211); and the tank (2) is disposed in a cold chamber environment below 30 ° C (actually, the lower the temperature is, the better); so that the chlorine dioxide gas is Multiple particulate carrier (21) adsorption .

4. Filling the carrier (21) in the container (2) again, please refer to the container (5) shown in Figure 5A;

5. Close the container (5).

When the container (5) is in use, please refer to FIG. 5B. In the main body, the body is preferably provided with a cover body (51) at the top, and the cover body (51) is convenient for the hole (511). The hole (511) may also be directly opened for the slow and long-term release of the chlorine dioxide gas by the plurality of particulate carriers (21) adsorbed with chlorine dioxide gas.

That is, when the container (5) is unsealed, including perforation or opening of the cover body (51), the chlorine dioxide gas molecules are stably released in the atmosphere by releasing the space in the container (5), or The solid carrier adsorbed material is directly put into the quantitative water to obtain a certain concentration of chlorine dioxide aqueous solution, so that the chlorine dioxide disinfecting water can be easily obtained; whether the chlorine dioxide gas or the aqueous solution is used by the method, They no longer need to be configured on site, which is very convenient for storage, carrying and safe transportation, which simplifies the use.

To further illustrate, referring to the second figure, the process of taking chlorine dioxide gas into the tank (2) includes: generating a source (10) from chlorine dioxide, the chlorine dioxide generating source (10) The reaction tank can be prepared by a chemical method or an electrolysis method, and then the chlorine dioxide gas is transported by an intake line (11) and passed through a purification unit (12) to further purify the chlorine dioxide gas, and The intake line (11) enters the inside of the tank (2), and the tank (2) is connected to an outlet line (41) to escape excess chlorine dioxide gas, and a circulation line is additionally provided. (42), the path of the circulation line (42) is provided with a venturi (43), the venturi (43) is connected to the outlet line (41), and the circulation line (42) is provided with a circulation pump (44), and the circulation pump (44) is activated to cause water flow in the Wenli The tube (43) causes the suction of the outlet line (41), and the path of the circulation line (42) is additionally provided with an absorption tank (45). When the absorption tank (45) is provided with water liquid, it can be dissolved. The excess chlorine dioxide gas is introduced or adsorbed. At the same time, the chlorine dioxide gas can be stably adsorbed and concentrated by the plurality of particulate carriers (21). Further, the amount of chlorine dioxide gas adsorbed (i.e., the concentration at which adsorption is carried out) can be controlled by the length of time in which the continuously introduced chlorine dioxide gas is contacted with the plurality of particulate carriers (21).

Further, the carrier (21) of the present invention is selected from the group consisting of diatomaceous earth, kaolin, bentonite, bentonite, zeolite, medical stone, bamboo charcoal powder, quicklime, calcium silicate, tannin, ceramic ball (yttrium aluminum oxide). a mixture of one or more of a group of activated alumina, molecular sieves, and the like. The molecular sieve may further be selected from the group consisting of barium aluminate or carbon molecular sieves.

The characteristics of the group of substances are preferably a solid carrier adsorbing substance of chlorine dioxide gas because of the structure of fine plural pores and the large specific surface area of adsorption.

In addition, in the cold room environment of the present invention, the embodiment is to incorporate the container (2) into a tank body (3), which may be selected from glass material, plastic material, stainless steel material, etc. or Dewar. A bottle (Dewar Caddie) or the like, and based on cost considerations, the cold chamber environment may incorporate the tank (2) into a tank (3), and the tank (3) contains a refrigerant medium inside. The refrigerant medium may further be one of cold water, ice cubes, dry ice or liquid nitrogen selected from low temperature based on ease of availability and cost considerations. Of course, it is not limited to the foregoing.

Referring to the third figure, the cold room environment can also be inside a freezer (3A) which broadly includes a refrigerator, a freezer, a freezer or other container that can cool the interior space. And the refrigerator (3A) may be equipped with an electronic temperature control device (31).

Referring to FIG. 5A, in the product of the present invention, the chlorine dioxide gas slow release device comprises: a sealed container (5), and the sealed container (5) is provided with a plurality of granular carriers. (21), and each carrier (21) has a plurality of pores (211) on its surface, and the inside of the container (5) is adsorbed with chlorine dioxide gas in the plurality of particulate carriers (21), and the carriers of the present invention ( 21) selected from the group consisting of diatomaceous earth, kaolin, bentonite, bentonite, zeolite, medical stone, bamboo charcoal powder, quicklime, calcium citrate, tannin, ceramic ball (yttrium aluminum oxide), activated alumina, molecular sieve, etc. One or more of a mixture. The molecular sieve may further be selected from the group consisting of barium aluminate or carbon molecular sieves.

The present invention does achieve industrial utilization of an effective and widely used industry, and proposes a patent application according to law. However, the foregoing examples are merely examples of the present invention, and the scope of the patents of the present invention is also included in the scope of the claimed.

Claims (7)

A method for producing a chlorine dioxide gas slow release device, comprising the steps of: taking chlorine dioxide gas into a cavity in which a plurality of granular carriers are placed, the surface of each carrier having a plurality of pores: and the container is disposed below 30 ° C a cold chamber environment; the chlorine dioxide gas is adsorbed by the plurality of particulate carriers; and the carrier in the container is filled in a container in a cold room environment below 30 ° C, and the container is closed, wherein The process of taking the chlorine dioxide gas into the tank includes transporting the chlorine dioxide gas from a chlorine dioxide generating source to an intake line, and passing through a purification unit to further purify the chlorine dioxide gas. And the intake line enters the interior of the tank, and the tank is connected to an outlet line to escape excess chlorine dioxide gas, and a circulation line is provided, and the circulation line is provided with a venturi The venturi is connected to the outlet pipe, and the circulation pipeline is provided with a circulation pump, and the circulation pump is started to cause the water flow to cause suction of the outlet pipeline in the venturi, and the path of the circulation pipeline is additionally provided. Absorption tank When the water liquid is placed inside the absorption tank, the excess chlorine dioxide gas can be dissolved or adsorbed. The method for producing a chlorine dioxide gas slow release device according to claim 1, wherein the carrier is selected from the group consisting of diatomaceous earth, kaolin, bentonite, bentonite, zeolite, medical stone, bamboo charcoal powder, quicklime, and tannic acid. Mixing one or more of calcium, tannin, ceramic ball (yttrium aluminum oxide), activated alumina, molecular sieve, and the like. The manufacturer of the chlorine dioxide gas slow release device as described in claim 1 The method wherein the molecular sieve is selected from the group consisting of barium aluminate or carbon molecular sieves. The method for manufacturing a chlorine dioxide gas slow release device according to claim 1, wherein the cold chamber environment incorporates the container into a tank body, and the tank body houses a refrigerant medium. The method for producing a chlorine dioxide gas slow release device according to claim 4, wherein the refrigerant medium is one selected from the group consisting of low temperature cold water, ice cubes, dry ice or liquid nitrogen. The method for manufacturing a chlorine dioxide gas slow release device according to claim 1, wherein the cold room environment is inside a refrigerator. The method for manufacturing a chlorine dioxide gas slow release device according to claim 6, wherein the inside of the refrigerator is provided with an electronic temperature control device.