CN108786410A - A kind of preparation method and applications of slow released ClO 2 - Google Patents
A kind of preparation method and applications of slow released ClO 2 Download PDFInfo
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- CN108786410A CN108786410A CN201810606571.8A CN201810606571A CN108786410A CN 108786410 A CN108786410 A CN 108786410A CN 201810606571 A CN201810606571 A CN 201810606571A CN 108786410 A CN108786410 A CN 108786410A
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- chlorate
- oxalic acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The present invention discloses a kind of preparation method and applications of slow released ClO 2, and the preparation method of the slow released ClO 2 includes the following steps：It is mixed after masson pine and sugarcane are crushed, plant fiber powder is made；Oxalic acid solution is added in the plant fiber powder, solid-state oxalic acid is formed；After clay powder is made in common brick crushing, is mixed with chlorate, inertia chlorate is made；The solid-state oxalic acid and the inertia chlorate are independently packed, the solid-state oxalic acid and inertia chlorate is mixed, obtains slow released ClO 2, wherein the mass ratio when solid-state oxalic acid and inertia chlorate mix is 3:1~5:1.The present invention slows down the reaction speed reacted when oxalic acid is contacted with chlorate and generate chlorine dioxide, realizes the thorough decomposition permanently effective to indoor formaldehyde by the way that oxalic acid and chlorate correspondence are prepared into solid-state oxalic acid and inertia chlorate.
Description
Technical field
The present invention relates to purifying indoor formaldehyde technical field, more particularly to the preparation method of a kind of slow released ClO 2 and
It is applied.
Background technology
Currently, the main method of removal formaldehyde in indoor air has：Physisorphtion, green plant absorption process, sealer method, light
Membrane by accelerant process, biological enzyme etc., wherein physisorphtion has the adsorption saturation limit, when the temperature increases can be by the formaldehyde weight of absorption
Newly evaporate；The green uptake for planting absorption process is very little, since the interior space is limited, puts green plant quantity PARA FORMALDEHYDE PRILLS(91,95)
Absorption almost can be ignored；Although formaldehyde can temporarily be blocked and is allowed to not volatilize into interior by sealer method,
But over time after plugging film cracking, formaldehyde can re-start release；Photocatalyst method needs ultraviolet light irradiation that could rise
To the effect of decomposing formaldehyde, but ultraviolet light is harmful, can not accomplish there is ultraviolet light irradiation for a long time in practical operation room；It is raw
Object enzyme process is to environmental requirement harshness, and when solution viscosity increases to a certain extent, biological enzyme, which enters dormant state, to be played
Effect, moisture evaporates quickly after still more spraying to pollutant surface, and biological enzyme is attached to body surface loss of activity, and meets
There is the substance containing disinfectant that can be killed.On the other hand, due to the volatilization of formaldehyde (release) be because external environment long lasting for
The process of progress, and the above method cannot be decomposed or be purified to indoor formaldehyde long-term effectively.
Invention content
The main object of the present invention is to propose a kind of preparation method and applications of slow released ClO 2, it is intended to realization pair
The permanently effective thorough decomposition of indoor formaldehyde.
To achieve the above object, the present invention proposes a kind of preparation method of slow released ClO 2, includes the following steps：
It is mixed after masson pine and sugarcane are crushed, plant fiber powder is made；
Oxalic acid solution is added in the plant fiber powder, solid-state oxalic acid is formed；
After clay powder is made in common brick crushing, is mixed with chlorate, inertia chlorate is made；
The solid-state oxalic acid and the inertia chlorate are independently packed, the solid-state oxalic acid and inertia are mixed
Chlorate obtains slow released ClO 2, wherein the mass ratio when solid-state oxalic acid and inertia chlorate mix is 3:1~5:
1。
Preferably, the step of mixing after masson pine and sugarcane being crushed, plant fiber powder is made, specifically includes：
Masson pine and sugarcane are crushed to 50~60 mesh respectively, then the crushed material of masson pine and sugarcane is mixed, must be planted
Fibres powder；The mass ratio of the crushed material of the wherein described masson pine and sugarcane is 1:2~2:1.
Preferably, in the step of oxalic acid solution being added in the plant fiber powder, forming solid-state oxalic acid：
The mass ratio of a concentration of the 70~80% of the oxalic acid solution, the oxalic acid solution and the plant fiber powder is 1:
3~1:1.
Preferably, in the step of common brick being crushed after clay powder is made, being mixed with chlorate, inertia chlorate is made：
The chlorate includes at least one of sodium chlorate and sodium perchlorate.
Preferably, in the step of common brick being crushed after clay powder is made, being mixed with chlorate, inertia chlorate is made：
The mesh number of the clay powder is 40~50 mesh, and the mass ratio of the clay powder and the chlorate is 2:1~4:1.
Present invention further propose that a kind of application of slow released ClO 2 in decomposing indoor formaldehyde, the slow-release two
Chlorine monoxid is prepared by the preparation method of slow released ClO 2 as described above.
The preparation method of slow released ClO 2 provided by the invention, by the way that oxalic acid and chlorate correspondence are prepared into solid-state
Oxalic acid and inertia chlorate slow down the reaction speed reacted when oxalic acid is contacted with chlorate and generate chlorine dioxide, are needing to make
Used time, the two is mixed in proportion can react generation chlorine dioxide, and the chlorine dioxide of generation is free in the interior space, product
The formaldehyde of the decomposition free state of pole active, realizes the thorough decomposition permanently effective to indoor formaldehyde.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Chlorine dioxide can generate combination reaction with formaldehyde, and the formaldehyde being hazardous to the human body thoroughly is decomposed, anti-
The equation is answered to be：
4ClO2+ 5HCHO=5CO2↑+4HCl↑+3H2O
Its technological difficulties is the generation speed of control chlorine dioxide, makes it possible to slow, long-term generation chlorine dioxide,
To realize that PARA FORMALDEHYDE PRILLS(91,95) carries out the purpose of permanently effective decomposition.
The present invention proposes a kind of preparation method of slow released ClO 2, includes the following steps：
Step S10, it is mixed after crushing masson pine and sugarcane, plant fiber powder is made；
Masson pine and sugarcane are crushed to 50~60 mesh respectively, then the crushed material of masson pine and sugarcane is mixed, must be planted
Fibres powder；Wherein, the mass ratio of the crushed material of the masson pine and sugarcane is 1:2~2:1.In one embodiment of the invention
In, the mass ratio of the crushed material of the masson pine and sugarcane is preferably 1:1.
Step S20, oxalic acid solution is added in the plant fiber powder, forms solid-state oxalic acid；
Oxalic acid solution is slowly added into the plant fiber powder of above-mentioned preparation by several times, repeatedly addition is so that the plant
Fiber powder fully absorbs the oxalic acid solution, until the uptake of the plant fiber powder reaches saturation without reabsorbing the grass
Acid solution, at this point, the oxalic acid solution is evenly distributed in the plant fiber powder, to form the solid-state oxalic acid, wherein
The mass ratio of a concentration of the 70~80% of the oxalic acid solution, the oxalic acid solution and the plant fiber powder is 1:3~1:1,
That is, the oxalic acid solution content in the solid-state oxalic acid is 25%~50%.
Step S30, it after clay powder being made in common brick crushing, is mixed with chlorate, inertia chlorate is made；
Common brick (is referred to clay, shale, gangue etc. as raw material, manually or mechanically to suppress after crushing, mixing pugging mullering
Molding, slug type building block made of being fired after drying with oxidizing flame at a temperature of 900 DEG C or so) crush clay is made
Then chlorate is mixed with the clay powder, the chlorate is made to be dispersed in the clay powder by powder in proportion, to
Form the inertia chlorate that wrap up by the clay powder, wherein the mesh number of the clay powder is 40~50 mesh, the clay powder and
The mass ratio of the chlorate is 2:1~4:1.
The chlorate includes at least one of sodium chlorate and sodium perchlorate.Sodium chlorate or sodium perchlorate meet oxalic acid
Chlorine dioxide is generated with reaction and other a small amount of gases react with oxalic acid by taking sodium chlorate as an example and generate chlorine dioxide
Reaction equation is as follows：
H2C2O4+2NaClO3=2ClO2↑+CO2↑+H2O+Na2CO3
Step S40, the solid-state oxalic acid and the inertia chlorate are independently packed, mixes the solid-state grass
Acid and inertia chlorate, obtain slow released ClO 2, wherein the mass ratio when solid-state oxalic acid and inertia chlorate mix is
3:1~5:1.
After the preparation for completing the solid-state oxalic acid and inertia chlorate, the two is independently packed, is being needed
It uses, dismantles packaging, the two is mixed can slow reaction generation chlorine dioxide.It, can be by solid-state grass in packaging
The sour and inertia chlorate is needing according to identical quantitative package at solid-state oxalic acid packet and inertia chlorate packet by the two
When mixing is allowed to reaction generation chlorine dioxide, according to 3:1~5:1 proportional arrangement solid-state oxalic acid packet and of inertia chlorate packet
Number；Or it can be in packaging, by the solid-state oxalic acid and the inertia chlorate according to 3:1~5:1 mass ratio
It is sealed packaging respectively, when in use, a solid-state oxalic acid packet, which corresponds to, uses an inertia chlorate packet.
The preparation method of slow released ClO 2 provided by the invention, by the way that oxalic acid and chlorate correspondence are prepared into solid-state
Oxalic acid and inertia chlorate slow down the reaction speed reacted when oxalic acid is contacted with chlorate and generate chlorine dioxide, are needing to make
Used time, the two is mixed in proportion can react generation chlorine dioxide, and the chlorine dioxide of generation is free in the interior space, product
The formaldehyde of the decomposition free state of pole active, realizes the thorough decomposition permanently effective to indoor formaldehyde.
Present invention further propose that a kind of application of slow released ClO 2 in decomposing indoor formaldehyde, the slow-release two
Chlorine monoxid is prepared by the preparation method of slow released ClO 2 as described above.
By the way that oxalic acid and chlorate correspondence are prepared into the solid-state oxalic acid and the inertia chlorate, slow down the two and connect
Reaction generates the reaction rate of chlorine dioxide after touch, and reaction is allow slowly to carry out for a long time, under natural conditions, after the two contact,
The volatilization of chlorine dioxide is sustained the phase at three months or so.And in actual use, it should be according to the actual content of indoor formaldehyde
And it selects then select to make when indoor content of formaldehyde is more using the dosage of the solid-state oxalic acid and inertia chlorate
With the solid-state oxalic acid and inertia chlorate of more amount, the corresponding titanium dioxide chlorine dose for generating more amount carries out indoor formaldehyde
Thoroughly decompose.
Technical scheme of the present invention is described in further detail below in conjunction with specific embodiment, it should be understood that following real
It applies example to be only used to explain the present invention, be not intended to limit the present invention.
Embodiment 1
(1) masson pine and sugarcane are crushed to 50 mesh respectively, by 1:1 mass ratio mixes crushed material, and it is fine that plant is made
Tie up powder；
(2) by a concentration of 80% oxalic acid solution according to 1:2 mass ratio is added in the fibre plant powder of above-mentioned preparation,
It is repeatedly slowly added in addition, so that the oxalic acid solution that plant fiber powder fully absorbs is in saturation state；
(3) common brick is crushed to 40 mesh, clay powder is made, sodium chlorate and clay powder are then pressed 3:1 mass ratio mixing,
Inertia sodium chlorate is made；
(4) the solid-state oxalic acid and inertia sodium chlorate for taking above-mentioned preparation, according to 4:1 mass ratio is independently packed into
Solid-state oxalic acid packet and inertia sodium chlorate packet.
In use, solid-state oxalic acid packet and inertia sodium chloride packet are dismantled, solid-state oxalic acid and the mixing of inertia sodium chloride, about 1min
After start to generate chlorine dioxide, in its natural state, the volatilization of the chlorine dioxide sustained release phase is 84 days.
Embodiment 2
(1) masson pine and sugarcane are crushed to 60 mesh respectively, by 1:2 mass ratio mixes crushed material, and it is fine that plant is made
Tie up powder；
(2) by a concentration of 80% oxalic acid solution according to 1:3 mass ratio is added in the fibre plant powder of above-mentioned preparation,
It is repeatedly slowly added in addition, so that the oxalic acid solution that plant fiber powder fully absorbs is in saturation state；
(3) common brick is crushed to 50 mesh, clay powder is made, sodium perchlorate and clay powder are then pressed 4:1 mass ratio is mixed
It closes, inertia sodium chlorate is made；
(4) the solid-state oxalic acid and inertia sodium perchlorate for taking above-mentioned preparation, according to 5:1 mass ratio independently packs
At solid-state oxalic acid packet and inertia sodium perchlorate packet.
In use, solid-state oxalic acid packet and the high sodium chloride packet of inertia are dismantled, solid-state oxalic acid and the high sodium chloride mixing of inertia, about
Start to generate chlorine dioxide after 1min, in its natural state, the volatilization sustained release phase of chlorine dioxide is 90 days.
Embodiment 3
(1) masson pine and sugarcane are crushed to 50 mesh respectively, by 2:1 mass ratio mixes crushed material, and it is fine that plant is made
Tie up powder；
(2) by a concentration of 80% oxalic acid solution according to 1:1 mass ratio is added in the fibre plant powder of above-mentioned preparation,
It is repeatedly slowly added in addition, so that the oxalic acid solution that plant fiber powder fully absorbs is in saturation state；
(3) common brick is crushed to 50 mesh, clay powder is made, sodium chlorate and clay powder are then pressed 2:1 mass ratio mixing,
Inertia sodium chlorate is made；
(4) the solid-state oxalic acid and inertia sodium chlorate for taking above-mentioned preparation, according to 3:1 mass ratio is independently packed into
Solid-state oxalic acid packet and inertia sodium chlorate packet.
In use, solid-state oxalic acid packet and inertia sodium chloride packet are dismantled, solid-state oxalic acid and the mixing of inertia sodium chloride, about 1min
After start to generate chlorine dioxide, in its natural state, the volatilization of the chlorine dioxide sustained release phase is 93 days.
Embodiment 4
(1) masson pine and sugarcane are crushed to 60 mesh respectively, by 1:1 mass ratio mixes crushed material, and it is fine that plant is made
Tie up powder；
(2) by a concentration of 80% oxalic acid solution according to 1:1 mass ratio is added in the fibre plant powder of above-mentioned preparation,
It is repeatedly slowly added in addition, so that the oxalic acid solution that plant fiber powder fully absorbs is in saturation state；
(3) common brick is crushed to 40 mesh, clay powder is made, sodium perchlorate and clay powder are then pressed 3:1 mass ratio is mixed
It closes, inertia sodium chlorate is made；
(4) the solid-state oxalic acid and inertia sodium perchlorate for taking above-mentioned preparation, according to 4:1 mass ratio independently packs
At solid-state oxalic acid packet and inertia sodium perchlorate packet.
In use, solid-state oxalic acid packet and the high sodium chloride packet of inertia are dismantled, solid-state oxalic acid and the high sodium chloride mixing of inertia, about
Start to generate chlorine dioxide after 1min, in its natural state, the volatilization sustained release phase of chlorine dioxide is 90 days.
In conclusion the preparation method of slow released ClO 2 provided by the invention, by the way that oxalic acid and chlorate are corresponded to
It is prepared into solid-state oxalic acid and inertia chlorate, slows down the reaction speed that oxalic acid generates chlorine dioxide with chloric acid reactant salt, is being needed
It wants in use, the two is mixed in proportion can react generation chlorine dioxide, the volatilization of chlorine dioxide in its natural state is sustained
Phase, the chlorine dioxide of generation was free in the interior space, the aggressive formaldehyde for decomposing free state up to three months or so,
Realize the thorough decomposition permanently effective to indoor formaldehyde.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, for this field
For technical staff, the invention may be variously modified and varied.It is all in the spirit and principles in the present invention etc, made by it is any
Modification, equivalent replacement, improvement etc. should all be included within the scope of the present invention.
Claims (6)
1. a kind of preparation method of slow released ClO 2, which is characterized in that include the following steps：
It is mixed after masson pine and sugarcane are crushed, plant fiber powder is made；
Oxalic acid solution is added in the plant fiber powder, solid-state oxalic acid is formed；
After clay powder is made in common brick crushing, is mixed with chlorate, inertia chlorate is made；
The solid-state oxalic acid and the inertia chlorate are independently packed, the solid-state oxalic acid and inertia chloric acid are mixed
Salt obtains slow released ClO 2, wherein the mass ratio when solid-state oxalic acid and inertia chlorate mix is 3:1~5:1.
2. the preparation method of slow released ClO 2 as described in claim 1, which is characterized in that crush masson pine and sugarcane
After the step of mixing, plant fiber powder is made, specifically include：
Masson pine and sugarcane are crushed to 50~60 mesh respectively, then mix the crushed material of masson pine and sugarcane, obtains plant fibre
Tie up powder；The mass ratio of the crushed material of the wherein described masson pine and sugarcane is 1:2~2:1.
3. the preparation method of slow released ClO 2 as described in claim 1, which is characterized in that oxalic acid solution is added to institute
In the step of stating in plant fiber powder, forming solid-state oxalic acid：
The mass ratio of a concentration of the 70~80% of the oxalic acid solution, the oxalic acid solution and the plant fiber powder is 1:3~
1:1。
4. the preparation method of slow released ClO 2 as described in claim 1, which is characterized in that clay is made in common brick crushing
In the step of after powder, being mixed with chlorate, inertia chlorate be made：
The chlorate includes at least one of sodium chlorate and sodium perchlorate.
5. the preparation method of slow released ClO 2 as described in claim 1, which is characterized in that clay is made in common brick crushing
In the step of after powder, being mixed with chlorate, inertia chlorate be made：
The mesh number of the clay powder is 40~50 mesh, and the mass ratio of the clay powder and the chlorate is 2:1~4:1.
6. a kind of application of slow released ClO 2 in decomposing indoor formaldehyde, which is characterized in that the slow released ClO 2
It is prepared by the preparation method of the slow released ClO 2 as described in claim 1 to 5 any one.
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Application publication date: 20181113 |