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Preparation method and application of controlled-release type chlorine dioxide

A chlorine dioxide, slow-release technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of loss of activity, harm to human body, inability to function, etc., and achieve the effect of complete decomposition and slow down the reaction speed

Inactive Publication Date: 2018-11-13
御林军生物科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main methods for removing formaldehyde in indoor air are: physical adsorption method, green plant absorption method, sealing agent method, photocatalyst method, biological enzyme method, etc. Among them, physical adsorption method has an adsorption saturation limit, and when the temperature rises, it will The adsorbed formaldehyde is volatilized again; the absorption amount of the green plant absorption method is negligible. Due to the limited indoor space, the number of green plants placed has almost negligible absorption effect on formaldehyde; although the sealing agent method can temporarily block the formaldehyde. It cannot be volatilized into the room, but as time goes by, the formaldehyde will be released again after the sealing film cracks; the photocatalyst method needs ultraviolet radiation to decompose formaldehyde, but ultraviolet rays are harmful to the human body and cannot be done in the actual operation room There is long-term ultraviolet radiation; the biological enzyme method has strict requirements on the environment. When the viscosity of the solution rises to a certain level, the biological enzyme enters a dormant state and cannot function. It loses its activity when it attaches to the surface of the object, and it will be killed when it encounters substances containing disinfectants
On the other hand, since the volatilization (release) of formaldehyde is a process that continues for a long time due to the external environment, none of the above methods can effectively decompose or purify indoor formaldehyde for a long time.

Method used

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Examples

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Effect test

preparation example Construction

[0023] The present invention proposes a preparation method of slow-release chlorine dioxide, comprising the following steps:

[0024] Step S10, crushing the masson pine and sugarcane and mixing to make plant fiber powder;

[0025] Masson pine and sugarcane are crushed to 50-60 meshes respectively, then the pulverized material of masson pine and sugarcane is mixed to obtain plant fiber powder; wherein, the mass ratio of the masson pine and sugarcane pulverized material is 1:2~2: 1. In an embodiment of the present invention, the mass ratio of the masson pine to the crushed sugarcane is preferably 1:1.

[0026] Step S20, adding oxalic acid solution to the plant fiber powder to form solid oxalic acid;

[0027] Slowly add the oxalic acid solution to the above-prepared plant fiber powder in portions, and add multiple times to make the plant fiber powder fully absorb the oxalic acid solution until the absorption of the plant fiber powder reaches saturation and no longer absorbs the...

Embodiment 1

[0039] (1) Masson pine and sugar cane are crushed to 50 meshes respectively, and the crushed materials are mixed in a mass ratio of 1:1 to obtain plant fiber powder;

[0040] (2) Add the oxalic acid solution with a concentration of 80% to the above-prepared fiber plant powder according to the mass ratio of 1:2, and add slowly several times when adding, so that the oxalic acid solution fully absorbed by the plant fiber powder is saturated state;

[0041] (3) red brick is pulverized to 40 order, makes pottery clay powder, then sodium chlorate is mixed with pottery clay powder by the mass ratio of 3:1, makes inert sodium chlorate;

[0042] (4) Take the solid oxalic acid and inert sodium chlorate prepared above, and independently seal and pack them into solid oxalic acid bags and inert sodium chlorate bags according to the mass ratio of 4:1.

[0043]When using, unpack the solid oxalic acid package and the inert sodium chloride package, mix the solid oxalic acid and the inert sodi...

Embodiment 2

[0045] (1) Pine masson and sugarcane are pulverized to 60 meshes respectively, and the pulverized materials are mixed in a mass ratio of 1:2 to obtain plant fiber powder;

[0046] (2) Add the oxalic acid solution with a concentration of 80% to the above-prepared fiber plant powder according to the mass ratio of 1:3, and add slowly several times when adding, so that the oxalic acid solution fully absorbed by the plant fiber powder is saturated state;

[0047] (3) Red brick is pulverized to 50 order, makes pottery clay powder, then sodium perchlorate is mixed with pottery clay powder by the mass ratio of 4:1, makes inert sodium chlorate;

[0048] (4) Take the solid oxalic acid and inert sodium perchlorate prepared above, and independently seal and pack them into solid oxalic acid bags and inert sodium perchlorate bags according to the mass ratio of 5:1.

[0049] When using, unpack the solid oxalic acid package and the inert perchloric acid package, mix the solid oxalic acid and...

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PUM

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Abstract

The invention discloses a preparation method and application of a controlled-release type chlorine dioxide. The preparation method of the controlled-release type chlorine dioxide comprises the following steps that masson pine and sugar cane are ground and mixed, and plant fiber powder is prepared; an oxalic acid solution is added into the plant fiber powder to form solid oxalic acid; red brick isground to prepare clay powder, the clay powder is mixed with chlorate to prepare inertia chlorate; and solid oxalic acid and inertia chlorate are independently sealed and packaged respectively, and solid oxalic acid and inertia chlorate are blended to obtain the controlled-release chlorine dioxide, wherein the mass ratio of solid oxalic acid to inertia chlorate is 3:1-5:1. By preparing oxalic acidand chlorate to be solid oxalic acid and inertia chlorate correspondingly, the reaction speed of chlorine dioxide generation when oxalic acid is in contact with chlorate is decreased, and long-lasting, effective and thorough decomposition of indoor formaldehyde is achieved.

Description

technical field [0001] The invention relates to the technical field of indoor formaldehyde purification, in particular to a preparation method and application of slow-release chlorine dioxide. Background technique [0002] At present, the main methods for removing formaldehyde in indoor air are: physical adsorption method, green plant absorption method, sealing agent method, photocatalyst method, biological enzyme method, etc. Among them, physical adsorption method has an adsorption saturation limit, and when the temperature rises, it will The adsorbed formaldehyde is volatilized again; the absorption amount of the green plant absorption method is negligible. Due to the limited indoor space, the number of green plants placed has almost negligible absorption effect on formaldehyde; although the sealing agent method can temporarily block the formaldehyde. It cannot be volatilized into the room, but as time goes by, the formaldehyde will be released again after the sealing film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/76B01D53/72
CPCB01D53/72B01D53/76B01D2257/708
Inventor 窦文浩
Owner 御林军生物科技(深圳)有限公司