CN110327770A - A kind of composition and its preparation method except formaldehyde - Google Patents
A kind of composition and its preparation method except formaldehyde Download PDFInfo
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- CN110327770A CN110327770A CN201910465337.2A CN201910465337A CN110327770A CN 110327770 A CN110327770 A CN 110327770A CN 201910465337 A CN201910465337 A CN 201910465337A CN 110327770 A CN110327770 A CN 110327770A
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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
- 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
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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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
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Abstract
The present invention provides a kind of compositions and its preparation method except formaldehyde.The composition for removing formaldehyde is mainly made of lignin, persimmon tannin and tea polyphenols that mass ratio is 5-7:14-18:2-6；Composition provided by the invention except formaldehyde can effectively remove formaldehyde, 90% formaldehyde can be removed in 48h, and low in cost.
Description
Technical field
The invention belongs to amenities technical field, in particular to a kind of composition and its preparation method except formaldehyde.
Background technique
Formaldehyde is colourless gas, also known as formaldehyde, has irritation to the skin and mucosa of human body, when concentration of formaldehyde is greater than
0.08m3When, it can cause to be envious, eye is itched, delays the symptoms such as discomfort, can induce a variety of diseases, even result in fetal anomaly, especially
Its house just fitted up, often needing to be vented to can move in not a half year or more, or ask professional remove in formaldehyde mechanism decontamination chamber
Formaldehyde, but somewhat expensive.
Summary of the invention
In order to solve the above technical problems, formaldehyde should be removed the present invention provides a kind of composition and its preparation method except formaldehyde
Composition can be disposed in 48h 90% or more formaldehyde.
Specific technical solution of the present invention is as follows:
The present invention provides a kind of compositions except formaldehyde, should be mainly 5-7:14- by mass ratio except the composition of formaldehyde
Lignin, persimmon tannin and the tea polyphenols composition of 18:2-6.
The present invention prepares composition using lignin, persimmon tannin and tea polyphenols, can play synergistic effect between each component,
Formaldehyde is rapidly removed, and low-cost, meets the demand of users.
Further, it is made of except the composition of formaldehyde lignin, persimmon tannin and the tea polyphenols that mass ratio is 3:8:2.
Further, composition further includes myrtenol, bisabolene and honey, the lignin, persimmon tannin, tea
Polyphenol and the myrtenol, bisabolene, honey mass ratio be 5-7:14-18:2-6:3-5:1-2:2-3.
The present invention passes through is added myrtenol, bisabolene and honey in the composition, acts synergistically between each ingredient, into
The effect of composition removing formaldehyde is improved to one step, while having the effect of degerming.
Further, for lignin using preceding being ground, the diameter after grinding is 100-200 μm.
The present invention can further improve the effect of composition removing formaldehyde by the diameter of restriction lignin.
The present invention also provides a kind of formaldehyde scavengers, including composition and auxiliary material, wherein the quality of composition and auxiliary material
Than for 40-50:5-7.
The formaldehyde scavenger be it is powdered, when use, can be placed on PARA FORMALDEHYDE PRILLS(91,95) in the room containing formaldehyde and be adsorbed
Removal.
Further, it is the sodium bicarbonate of 2-4:6-10:3-5, fatty alcohol polyoxyethylene ether and ten that auxiliary material, which includes mass ratio,
Dialkyl sulfonates.
The present invention can be improved the stability of composition by adding the above auxiliary material.
Further, composition the preparation method comprises the following steps: the persimmon tannin of definite quality ratio and tea polyphenols is taken to be placed in container
It is interior, 20-30min is stirred under conditions of 70-75 DEG C, 400-500rpm after adding water, amount of water is that persimmon tannin and tea polyphenols are total
Mixed solution is made in 3-5 times of quality, and mixed solution is continued to stir to mixed under conditions of 95-100 DEG C, 800-1000rpm
The volume for closing solution is the 1/5-1/3 of original volume, adjusts pH to 5.5-5.8, concentrate is made, be down to room temperature, and regulation matter is added
The lignin for measuring ratio stirs 10-12min under conditions of room temperature, 2000-3000rpm, and concentration, drying are to powder to get combination
Object.
The composition that the present invention is prepared by above method can further extend the action time of composition.
Further, preparation method the following steps are included:
(1) persimmon tannin and tea polyphenols for taking definite quality ratio are placed in container, are added after water in 70-75 DEG C, 400-
20-30min is stirred under conditions of 500rpm, amount of water is 3-5 times of persimmon tannin and tea polyphenols gross mass, and it is molten to be made first
Liquid；
(2) honey, myrtenol and bisabolene of definite quality ratio is taken to be placed in container, at normal temperature with
The speed of 4000-6000rpm stirs 20-30min, and the second solution is made；
(3) the second solution is mixed with the first solution, and stirs 50-60min under conditions of 200-300rpm, be made the
Three solution；
(4) continuing third solution under conditions of 95-100 DEG C, 800-1000rpm to stir to the volume of solution is substance
Long-pending 1/5-1/3 adjusts pH to 5.5-5.8, and concentrate is made, and is down to room temperature, the lignin of definite quality ratio is added, in room
10-12min is stirred under conditions of temperature, 2000-3000rpm, concentration, drying are to powder to get composition.
It is long-acting that the present invention by above method achievees the purpose that composition.
Composition provided by the invention except formaldehyde can effectively remove formaldehyde, and 90% formaldehyde can be removed in 48h, and
It is low in cost.
Specific embodiment
Embodiment 1
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 5g lignin, 18g persimmon tannin and 2g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 100 μm；
Wherein, composition the preparation method comprises the following steps: the persimmon tannin of definite quality ratio and tea polyphenols is taken to be placed in container, add
20min is stirred after water under conditions of 70 DEG C, 400rpm, amount of water is 3 times of persimmon tannin and tea polyphenols gross mass, is made mixed
Solution is closed, mixed solution is continued to stir under conditions of 95 DEG C, 800rpm to the volume of mixed solution is the 1/5 of original volume,
PH to 5.5 is adjusted, concentrate is made, is down to room temperature, the lignin of definite quality ratio is added, under conditions of room temperature, 2000rpm
10min is stirred, concentration, drying are to powder to get composition.
Embodiment 2
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g lignin, 16g persimmon tannin and 4g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 150 μm；
Wherein, composition the preparation method comprises the following steps: the persimmon tannin of definite quality ratio and tea polyphenols is taken to be placed in container, add
25min is stirred after water under conditions of 72 DEG C, 450rpm, amount of water is 4 times of persimmon tannin and tea polyphenols gross mass, is made mixed
Solution is closed, mixed solution is continued to stir under conditions of 98 DEG C, 900rpm to the volume of mixed solution is the 1/4 of original volume,
PH to 5.6 is adjusted, concentrate is made, is down to room temperature, the lignin of definite quality ratio is added, under conditions of room temperature, 2500rpm
11min is stirred, concentration, drying are to powder to get composition.
Embodiment 3
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 7g lignin, 14g persimmon tannin and 6g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 200 μm；
Wherein, composition the preparation method comprises the following steps: the persimmon tannin of definite quality ratio and tea polyphenols is taken to be placed in container, add
30min is stirred after water under conditions of 75 DEG C, 500rpm, amount of water is 5 times of persimmon tannin and tea polyphenols gross mass, is made mixed
Solution is closed, mixed solution is continued to stir under conditions of 100 DEG C, 1000rpm to the volume of mixed solution is the 1/ of original volume
3, pH to 5.8 is adjusted, concentrate is made, is down to room temperature, the lignin of definite quality ratio is added, in room temperature, the condition of 3000rpm
Lower stirring 12min, concentration, drying are to powder to get composition.
Embodiment 4
A kind of composition except formaldehyde, the composition includes 5g lignin, 18g persimmon tannin, 2g tea polyphenols, 3g hill gooseberry
Enol, 2g bisabolene and 2g honey；
Wherein, for lignin using preceding being ground, the diameter after grinding is 100 μm；
Wherein, composition preparation method the following steps are included:
(1) persimmon tannin and tea polyphenols for taking definite quality ratio are placed in container, are added after water in 70 DEG C, the item of 400rpm
20min is stirred under part, amount of water is 3 times of persimmon tannin and tea polyphenols gross mass, and the first solution is made；
(2) honey, myrtenol and bisabolene of definite quality ratio is taken to be placed in container, at normal temperature with
The speed of 4000rpm stirs 20min, and the second solution is made；
(3) the second solution is mixed with the first solution, and stirs 50min under conditions of 200rpm, third solution is made；
(4) continuing third solution under conditions of 95 DEG C, 800rpm to stir to the volume of solution is the 1/5 of original volume,
PH to 5.5 is adjusted, concentrate is made, is down to room temperature, the lignin of definite quality ratio is added, under conditions of room temperature, 2000rpm
10min is stirred, concentration, drying are to powder to get composition.
Embodiment 5
A kind of composition except formaldehyde, the composition includes 6g lignin, 16g persimmon tannin, 4g tea polyphenols, 4g hill gooseberry
Enol, 1.5g bisabolene and 2.5g honey；
Wherein, for lignin using preceding being ground, the diameter after grinding is 100 μm.
Wherein, composition preparation method the following steps are included:
(1) persimmon tannin and tea polyphenols for taking definite quality ratio are placed in container, are added after water in 72 DEG C, the item of 450rpm
25min is stirred under part, amount of water is 4 times of persimmon tannin and tea polyphenols gross mass, and the first solution is made；
(2) honey, myrtenol and bisabolene of definite quality ratio is taken to be placed in container, at normal temperature with
The speed of 4500rpm stirs 25min, and the second solution is made；
(3) the second solution is mixed with the first solution, and stirs 55min under conditions of 250rpm, third solution is made；
(4) continuing third solution under conditions of 98 DEG C, 900rpm to stir to the volume of solution is the 1/4 of original volume,
PH to 5.7 is adjusted, concentrate is made, is down to room temperature, the lignin of definite quality ratio is added, under conditions of room temperature, 2500rpm
11min is stirred, concentration, drying are to powder to get composition.
Embodiment 6
A kind of composition except formaldehyde, the composition includes 7g lignin, 14g persimmon tannin, 6g tea polyphenols, 5g hill gooseberry
Enol, 1g bisabolene and 3g honey；
Wherein, for lignin using preceding being ground, the diameter after grinding is 100 μm.
Wherein, composition preparation method the following steps are included:
(1) persimmon tannin and tea polyphenols for taking definite quality ratio are placed in container, are added after water in 75 DEG C, the item of 500rpm
30min is stirred under part, amount of water is 5 times of persimmon tannin and tea polyphenols gross mass, and the first solution is made；
(2) honey, myrtenol and bisabolene of definite quality ratio is taken to be placed in container, at normal temperature with
The speed of 6000rpm stirs 30min, and the second solution is made；
(3) the second solution is mixed with the first solution, and stirs 60min under conditions of 300rpm, third solution is made；
Third solution is continued to stir under conditions of 100 DEG C, 1000rpm to the volume of solution is the 1/3 of original volume, is adjusted
Concentrate is made in whole pH to 5.8, is down to room temperature, and the lignin of definite quality ratio is added, stirs under conditions of room temperature, 3000rpm
12min is mixed, concentration, drying are to powder to get composition.
Embodiment 7
A kind of formaldehyde scavenger, the scavenger include 40g composition and 7g auxiliary material, in the embodiment ingredient of composition and
Preparation method is same as Example 1, and auxiliary material includes 1g sodium bicarbonate, 4.5g fatty alcohol polyoxyethylene ether and 1.5g dodecyl sodium sulfonate
Sodium.
Embodiment 8
A kind of formaldehyde scavenger, the scavenger include 45g composition and 6g auxiliary material, in the embodiment ingredient of composition and
Preparation method is same as Example 2, and auxiliary material includes 1.5g sodium bicarbonate, 2.5g fatty alcohol polyoxyethylene ether and 2g dodecyl sodium sulfonate
Sodium.
Embodiment 9
A kind of formaldehyde scavenger, the scavenger include 50g composition and 5g auxiliary material, in the embodiment ingredient of composition and
Preparation method is same as Example 3, and auxiliary material includes 1g sodium bicarbonate, 3g fatty alcohol polyoxyethylene ether and 1g dodecyl sodium sulfate.
Reference examples 1
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g lignin, 16g tea tannin and 4g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 150 μm；
The preparation method of the composition is same as Example 2.
Reference examples 2
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g lignin, 16g hamameli tannin and 4g tea polyphenols
Composition；
Wherein, for lignin using preceding being ground, the diameter after grinding is 150 μm；
The preparation method of the composition is same as Example 2.
Reference examples 3
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g cellulose, 16g persimmon tannin and 4g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 150 μm；
The preparation method of the composition is same as Example 2.
Reference examples 4
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g lignin, 16g persimmon tannin and 4g anthocyanidin group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 300 μm；
The preparation method of the composition is same as Example 2.
Reference examples 5
A kind of composition except formaldehyde, should be except the composition of formaldehyde be by 6g lignin, 16g persimmon tannin and 4g tea polyphenols group
At；
Wherein, for lignin using preceding being ground, the diameter after grinding is 60 μm；
Wherein, composition the preparation method comprises the following steps: the persimmon tannin of definite quality ratio, tea polyphenols and lignin is taken to be placed in appearance
In device, 25min is stirred under conditions of 72 DEG C, 450rpm after adding water, mixed solution is made, amount of water is that persimmon tannin and tea are more
Mixed solution is concentrated under conditions of 98 DEG C, 900rpm, dries to powder to get composition by 4 times of phenol gross mass.
Test example 1 removes formaldehyde performance test
Formaldehyde is measured according to national standard QB-T2761-2006 " indoor air purification product clean-up effect measuring method ", by 33
A blank cabin is divided into blank group, test 1-3 group and control 1-7 group, every group of 3 blank cabins, tests 1-3 group and control 1-7 component
Embodiment 3-5, the composition of reference examples 1-5 and the reality of Chinese patent CN101607174A are placed not under room temperature, air-proof condition
Example 3, embodiment 5 are applied, each group usage amount is 100g, and the window that blank group opens two 1 square metre is aerated, respectively 48
The concentration of formaldehyde in each group blank cabin is detected after hour and half a year, and calculates formaldehyde removal rate, formaldehyde removal rate=(initial formaldehyde
The final concentration of formaldehyde of concentration -)/initial concentration of formaldehyde × 100%, formaldehyde removal rate when being detected after half a year=(first at five months
Concentration of formaldehyde at aldehyde concentration-six months)/five months when concentration of formaldehyde × 100%, each group of data is averaged, measurement result
It is shown in Table 1.
The formaldehyde removal rate of 1. each group composition of table measures test result
As shown in Table 1, composition provided by the invention can effectively remove formaldehyde, the formaldehyde removal rate in 48h
Up to 90% or more, and the removal rate of PARA FORMALDEHYDE PRILLS(91,95) is still not less than 47% after half a year, is higher than each control group significantly, when replacement is appointed
One ingredient or when changing preparation method, except the effect of formaldehyde is remarkably decreased, it was demonstrated that in composition provided by the invention respectively at point it
Between act synergistically, improve the effect except formaldehyde significantly, and low in cost.
The test of 2 bactericidal property of test example
1. preparing culture medium
1.1 preparation PBS buffer solution: the beaker of 1000ml is taken, 36g phosphoric acid dioxy potassium and 2.83g phosphoric acid hydrogen two are separately added into
Sodium adds 1000ml distilled water and is stirred, and until completely dissolved, reuses sodium hydroxide solution and adjusts pH to 7.2-7.4,
It is spare in 121 DEG C of pressuresteam sterilization 20min；
1.2 preparation Escherichia coli, staphylococcus aureus solid medium: beaker is taken, 10g tryptone, 5g chlorine is added
Change sodium, 5g beef extract and 20g agar powder, add 1000ml distilled water and stir evenly, adjust pH value 7.2-7.4, dissolves by heating
After be placed in high-pressure steam sterilizing pan, in 121 DEG C of sterilizing 30min.
2. antibacterial ring size is tested
2.1 prepare bacteria inhibition tablet: taking sterile filter paper to be divided into test 4-7 group, the filter paper difference of 4-7 group is tested after dry
The composition of 20 μ l embodiment 3-6 is added dropwise, each group filter paper is lain against in sterilized petri dishes, then sterilized petri dishes are put into 37 DEG C
Dry spare in incubator, every group is done 5 Duplicate Samples；
2.2 preparation control prints: it will be used as blank group after aseptic filter paper piece drying, 20 μ l is added dropwise in aseptic filter paper on piece and form sediment
Powder solution, will be spare after filter paper drying；
2.3 inoculation experiments bacterium: dipping Escherichia coli and staphylococcus aureus solid medium with sterile cotton balls respectively,
Wherein, the concentration of Escherichia coli and staphylococcus aureus solid medium is 5 × 105cfu/ml-5×106The range of cfu/ml
It is interior, the sterile cotton for dipping Escherichia coli and staphylococcus aureus solid medium is placed in the table of nutrient agar plate
Face is equably smeared 3 times, the pivotal plate after smearing, and the angle of plate rotation is 60 °, with sterile cotton on the side of culture medium flat plate
Edge smears a circle, covers plate, and plate is dried 5min at room temperature；
2.4 iron side's bacteriostatic agent prints: bacteria inhibition tablet and control print are clamped respectively with sterile tweezers, is placed with the table in plate
Face adjusts the distance between adjacent bacteria inhibition tablet or control print central point to 25-30mm, while adjusting each bacteria inhibition tablet and right
The distance between piece and plate periphery are 15-20mm in the same old way, are then placed with bacteria inhibition tablet and control print with sterile tweezers
In the surface of plate, then glass dish is covered, with insulating box culture, the temperature of insulating box is adjusted to 37 DEG C, and incubation time is 24 small
When, observe test result, and with measure antibacterial ring size diameter, do 5 parallel tests, each group of data is averaged, the results are shown in Table
2。
Wherein, the diametrically-filter paper diameter of antibacterial ring size=outside, when measurement need to select uniformly, the suppression of integral asepsis growth
Collarium measures, and diameter should be using the outer of antibacterial ring size as boundary；When inhibition zone diameter be greater than 7mm, be determined as by bacteriostasis,
When inhibition zone diameter be less than or equal to 7mm, be determined as no bacteriostasis；The test method is referring to Chinese patent
201810385825.8 test method.
2. antibacterial ring size experimental result of table
As shown in Table 2, the present invention can be into one after providing addition myrtenol, bisabolene, honey in the composition
Step plays bactericidal effect, it was demonstrated that acts synergistically between each ingredient in composition provided by the invention, has removal effect of formaldehyde
While also have the effect of sterilization.
3 stability of embodiment
It each three groups of the formaldehyde scavenger of Example 7-9, places 2 years at room temperature, observes the face of each group formaldehyde scavenger
Color, smell simultaneously carry out assay, as a result, it has been found that, after each group formaldehyde scavenger is placed 2 years, color and smell do not change,
Assay is the results show that active constituent content is above 95%, it was demonstrated that after auxiliary material is added, improves the stabilization of formaldehyde scavenger
Property.
To sum up, only the preferred embodiments of the invention, is not limited the scope of protection of the present invention with this, all according to the invention patent
Equivalent changes and modifications made by range and description are all within the scope of the invention patent covers.
Claims (9)
1. a kind of composition except formaldehyde, which is characterized in that the composition except formaldehyde is mainly 5-7:14- by mass ratio
Lignin, persimmon tannin and the tea polyphenols composition of 18:2-6.
2. removing the composition of formaldehyde as described in claim 1, which is characterized in that the composition except formaldehyde is by mass ratio
Lignin, persimmon tannin and the tea polyphenols composition of 3:8:2.
3. as described in claim 1 remove formaldehyde composition, which is characterized in that the composition further include myrtenol,
Bisabolene and honey, the lignin, persimmon tannin, tea polyphenols, water and the myrtenol, bisabolene, honey
Mass ratio is 5-7:14-18:2-6:3-5:1-2:2-3.
4. removing the composition of formaldehyde as described in claim 1, which is characterized in that the lignin is ground using preceding being ground
Diameter after mill is 100-200 μm.
5. a kind of formaldehyde scavenger, which is characterized in that including composition of any of claims 1 or 2 and auxiliary material, the composition
Mass ratio with auxiliary material is 40-50:5-7.
6. formaldehyde scavenger as claimed in claim 5, which is characterized in that the auxiliary material includes that mass ratio is 2-4:6-10:3-5
Sodium bicarbonate, fatty alcohol polyoxyethylene ether and dodecyl sodium sulfate.
7. a kind of composition as claimed in claim 1 or 2, which is characterized in that the composition the preparation method comprises the following steps: taking regulation
The persimmon tannin and tea polyphenols of mass ratio are placed in container, are stirred under conditions of 70-75 DEG C, 400-500rpm after adding water
20-30min, amount of water are 3-5 times of persimmon tannin and tea polyphenols gross mass, mixed solution are made, by mixed solution in 95-
100 DEG C, continue to stir to the volume of mixed solution under conditions of 800-1000rpm be original volume 1/5-1/3, adjustment pH is extremely
Concentrate is made in 5.5-5.8, is down to room temperature, the lignin of definite quality ratio is added, in room temperature, the condition of 2000-3000rpm
Lower stirring 10-12min, concentration, drying are to powder to get composition.
8. composition as claimed in claim 3, which is characterized in that the preparation method comprises the following steps:
(1) persimmon tannin and tea polyphenols for taking definite quality ratio are placed in container, are added after water in 70-75 DEG C, 400-500rpm
Under conditions of stir 20-30min, amount of water is 3-5 times of persimmon tannin and tea polyphenols gross mass, obtained first solution；
(2) honey, myrtenol and bisabolene of definite quality ratio is taken to be placed in container, at normal temperature with 4000-
The speed of 6000rpm stirs 20-30min, and the second solution is made；
(3) the second solution is mixed with the first solution, and stirs 50-60min under conditions of 200-300rpm, it is molten that third is made
Liquid；
(4) continuing third solution under conditions of 95-100 DEG C, 800-1000rpm to stir to the volume of solution is original volume
, adjust pH to 5.5-5.8, concentrate be made, is down to room temperature, the lignin of definite quality ratio is added, room temperature,
10-12min is stirred under conditions of 2000-3000rpm, concentration, drying are to powder to get composition.
9. the application of any of claims 1 or 2 except the composition of formaldehyde in the product that preparation has except effect of formaldehyde.
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| JP4006421B2 (en) * | 2004-07-16 | 2007-11-14 | 北海道電力株式会社 | Formaldehyde adsorbent and method for producing the same |
| CN101607174A (en) * | 2008-06-19 | 2009-12-23 | 上海复爱绿色化学技术有限公司 | Natural polymer composite-base formaldehyde remover and preparation method thereof |
| CN102641512A (en) * | 2012-05-04 | 2012-08-22 | 柳州华力家庭品业股份有限公司 | Chinese herbal medicinal formaldehyde and foreign smell removing agent and preparation method thereof |
| CN103656955A (en) * | 2012-09-05 | 2014-03-26 | 中铁九局集团工程检测试验有限公司 | Environment-friendly high-efficiency formaldehyde scavenger |
| CN104324583A (en) * | 2014-10-14 | 2015-02-04 | 广州立白企业集团有限公司 | Efficient low-toxicity formaldehyde scavenger |
| CN105289519A (en) * | 2015-10-19 | 2016-02-03 | 辽宁大学 | Persimmon tannin adsorbent and preparing method and application thereof |
| CN108778349A (en) * | 2016-03-14 | 2018-11-09 | 奇华顿股份有限公司 | Spice composition |
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