CN107652426A - Reduce the process for purification of VOC content and smell in PPG - Google Patents
Reduce the process for purification of VOC content and smell in PPG Download PDFInfo
- Publication number
- CN107652426A CN107652426A CN201710940203.2A CN201710940203A CN107652426A CN 107652426 A CN107652426 A CN 107652426A CN 201710940203 A CN201710940203 A CN 201710940203A CN 107652426 A CN107652426 A CN 107652426A
- Authority
- CN
- China
- Prior art keywords
- ppg
- refined
- smell
- voc content
- purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/46—Post-polymerisation treatment, e.g. recovery, purification, drying
Abstract
The present invention relates to the process for purification of VOC content and smell in a kind of reduction PPG, mainly aldehyde content present in solution prior art is higher, causes the problem of VOC values are higher, smell is big.The present invention by using it is a kind of reduction PPG in the process for purification of VOC content and smell, including：(1) adsorbent is added in refined PPG is treated, the adsorbent is magnesium silicate, and addition is treat refined PPG quality 0.1~1.5%, and the wherein particle size of magnesium silicate is 1~80um, specific surface area >=40m2/ g, pore volume≤0.5cm3/g；(2) predetermined temperature is warming up to after adsorbent is added in refined PPG, stirred；(3) heating and vacuum dehydration, moisture requirement≤0.05% after dehydration, the technical scheme of the PPG of low VOC content is produced after press filtration, preferably solves the problem, available for low VOC content PPG it is industrially prepared in.
Description
Technical field
The present invention relates to the process for purification of VOC content and smell in a kind of reduction PPG.
Background technology
PPG is a kind of important industrial chemicals, be widely used in weaving, synthetic leather, adhesive, foamed plastics,
The industrial circles such as elastomer, it is the primary raw material for producing polyurethane.In the production technology of traditional PPG, raw material,
The many more manipulations such as side reaction, post processing can produce a certain amount of VOC (VOC), VOC organic volatile owners
There are benzene class, aldehydes and benzene homologues etc., VOC volatile organic contents to PPG although seldom, but bring unpleasant gas
Taste, unpredictable harm is caused to air quality and health.
With the enhancing of environmental consciousness, for the materials such as small stores and automotive trim environmental requirement also increasingly
Height, have become the weight for limiting its application the problems such as VOC (VOC) in polyurethane Related product, high smell
Want factor.The particle size 124um of magnesium silicate in the prior art, specific surface area 35m2/ g, pore volume 0.8cm3/g.It is existing
Sample is placed in glass container by the examination of smell method of testing in technology, 2h ± 10min is dried in 80 ± 2 DEG C of baking ovens, then by container
Taken out from baking oven, put and be cooled to 60 ± 5 DEG C in atmosphere, smell is evaluated by tester.Assessment number is at least in 3 people, often
Gap between the fraction that individual is given can not be more than 2 points, be assessed if greater than 2 points it is necessary to re-start, number is 5 people.
Chinese patent CN106543427A, this patent disclose volatile materials in a kind of removing PPG and dropped
The method of low smell, this patent, which describes, adds antioxidant and reducing agent into PPG, adds successively after being well mixed
Enter stripper and short distance vaporising device, collect and obtain the Contents In Polyether Polyol for removing volatile materials, obtained using this method
PPG in total aldehyde content reach 5ppm, oder levels can be to 1.4.
Chinese patent CN106589345A, this patent disclose a kind of PPG for reducing VOC content and smell
Process for purification, this patent is described by PPG under base metal catalysts effect, anti-with oxyalkylene by initiator
It should be made, first add to account for after 0.5~2% self-control adsorbent of crude polyoxyalkylene polyol gross mass to open in PPG and stir
Mix, after being warming up to predetermined whipping temp, stir 1 hour, cool to after predetermined temperature after adding water and stir, open vacuum system simultaneously
Heat up simultaneously and remove moisture and low-boiling-point substance in PPG, the qualified rear press filtration of analysis moisture obtains finished product, is obtained using this method
To PPG in content of formaldehyde reach 0.89ug/g, acetaldehyde reaches 1.24ug/g, and level of acrolein reaches 0.56ug/g.
The content of the invention
The technical problems to be solved by the invention are the problem of PPG VOC values of the prior art are high, and smell is big,
The process for purification of VOC content and smell in a kind of new reduction PPG is provided.It is prepared using the process for purification
PPG has the advantages of low VOC values and low smell.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：One kind reduces VOC in PPG and contained
The process for purification of amount and smell, comprises the following steps：
Step 1：Add adsorbent in refined PPG is treated, the adsorbent is magnesium silicate, the adsorbent
Addition be the 0.1~1.5% of PPG quality to be refined, the wherein particle size of magnesium silicate is 1~80um, compares table
Area >=40m2/ g, pore volume≤0.5cm3/g；
Step 2：Predetermined temperature is warming up to after adsorbent is added in refined PPG as 95~115 DEG C, stirring 0.1
~5 hours；
Step 3：Heat up and vacuum dehydration, dehydration temperaturre are 105~120 DEG C, moisture requirement≤0.1% after dehydration, press filtration
The PPG of low VOC content is produced afterwards；
The water of PPG quality 3~15% to be refined wherein is added in step 1 or step 2.
In above-mentioned technical proposal, it is preferable that in step 1 or step 2, in PPG to be refined add be selected from by
At least one of phenols, phosphorous acid esters or hindered amines antioxidant is hindered, the addition of antioxidant is PPG to be refined
The 0.01~1% of quality.
In above-mentioned technical proposal, it is preferable that Hinered phenols antioxidant be selected from 2,6- three-level butyl -4- methylphenols, it is double (3,
5- three-level butyl -4- hydroxy phenyls) in thioether or four (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol esters
It is at least one；Phosphite ester kind antioxidant be selected from the different certain herbaceous plants with big flowers ester of pentaerythritol diphosphite two, bis-phenol phosphorous ester or three (2,4- bis-
At least one of tert-butyl-phenyl) phosphite ester；Suffocated amine antioxidant in naphthylamines, diphenylamines or p-phenylenediamine extremely
Few one kind；The addition of antioxidant is the 0.1~0.6% of the quality of PPG to be refined.
In above-mentioned technical proposal, it is preferable that in step 1, water is being added after adsorbent is added in refined PPG,
95~115 DEG C of predetermined temperature is warming up to, the addition of water is the 3~9% of PPG quality to be refined；In step 2, treating
Water is added after adding adsorbent in refined PPG, is warming up to 95~115 DEG C of predetermined temperature, the addition of water is to wait to refine
The 3~9% of PPG quality.
In above-mentioned technical proposal, it is preferable that in step 1, adsorbent is added in PPG to be refined, after adding water
95~115 DEG C of predetermined temperature is warming up to, the addition of water is the 5~7.5% of PPG quality to be refined；In step 2,
Adsorbent is added in PPG to be refined, is warming up to 95~115 DEG C of predetermined temperature after adding water, the addition of water is to treat essence
The 5~7.5% of PPG quality processed.
In above-mentioned technical proposal, it is preferable that in step 1, the addition of the adsorbent is PPG matter to be refined
The 0.1~0.95% of amount, the wherein particle size of magnesium silicate is 1~60um, and specific surface area is 50~200m2/g, and pore volume is preferred
For 0.01~0.3cm3/g。
In above-mentioned technical proposal, it is preferable that in step 1, the addition of the adsorbent is PPG matter to be refined
The 0.5~0.95% of amount, the wherein particle size of magnesium silicate is 5~50um, and specific surface area is 80~150m2/g, and pore volume is
0.01~0.1cm3/g。。
In above-mentioned technical proposal, it is preferable that the polyether polyols alcohol functionalities to be refined are 1~6, point of PPG
Son amount is 100~15000g/mol.
In above-mentioned technical proposal, it is preferable that treat content of formaldehyde >=2ppm in refined polyether polyols raw polyol；Acetaldehyde
≥4ppm；Level of acrolein >=2ppm；Oder levels >=3.
In above-mentioned technical proposal, it is preferable that content of formaldehyde≤1ppm in PPG after refined；Acetaldehyde≤
1ppm；Level of acrolein is 0ppm；Oder levels≤1.5.
In the present invention, adsorbent magnesium silicate is added in PPG to be refined, particle size to magnesium silicate, compares table
Area and pore volume propose requirement, the small molecule in the magnesium silicate cladding PPG of condition as satisfaction, effectively absorption
Small-molecule substance in PPG so that volatile materials can be by efficient removal in PPG.Obtained using this method
To polyethers in content of formaldehyde can be reduced to 0.10ppm, acetaldehyde can be reduced to 0.21ppm, and level of acrolein can be reduced to
0ppm, oder levels can be reduced to 1.0, so that the VOC content in PPG can effectively reduce and with reduction
The advantages of smell, achieve preferable technique effect.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
Embodiment 1
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) that 1000g is treated into refined PPG (degree of functionality 6, molecular weight 12000g/mol) is added to 2L is anti-
Answer in kettle, add 10g magnesium silicates, the particle diameter of magnesium silicate is 5um, specific surface area 50m2/ g, pore volume 0.01cm3/g；
(2) after adding 30g water in 2L reactors, open stirring and be warming up to 95 DEG C, stir 1 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 105 DEG C, press filtration to moisture is after dehydration
0.05%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 2
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 1, molecular weight 4000g/mol) is added to 2L reactions
In kettle, 8g magnesium silicates, 6g four (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol esters, wherein silicic acid are added
The particle diameter of magnesium is 50um, specific surface area 150m2/ g, pore volume 0.3cm3/g；
(2) after adding 50g water in 2L reactors, open stirring and be warming up to 115 DEG C, stir 5 hours at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 120 DEG C, press filtration to moisture is after dehydration
0.01%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 3
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 3, molecular weight 6000g/mol) is added to 2L reactions
In kettle, add 15g magnesium silicates, add 90g water, the wherein particle diameter of magnesium silicate is 15um, specific surface area 100m2/ g, pore volume are
0.1cm3/g；
(2) after adding 1g tetra- (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol ester in 2L reactors,
Open stirring and be warming up to 115 DEG C, stir 0.5 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 115 DEG C, press filtration moisture is after dehydration
0.02%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 4
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 3, molecular weight 5000g/mol) is added to 2L reactions
In kettle, 8g magnesium silicates are added, the wherein particle diameter of magnesium silicate is 60um, specific surface area 80m2/ g, pore volume 0.05cm3/g；
(2) after adding 150g water in 2L reactors, open stirring and be warming up to 110 DEG C, stir 3 hours at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 110 DEG C, press filtration moisture is after dehydration
0.06%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 5
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 3, molecular weight 3000g/mol) is added to 2L reactions
In kettle, 12g magnesium silicates, 2.0g tetra- (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol ester, wherein silicic acid are added
The particle diameter of magnesium is 20um, specific surface area 50m2/ g, pore volume 0.02cm3/g；
(2) after adding 40g water in 2L reactors, open stirring and be warming up to 100 DEG C, stir 1 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 105 DEG C, press filtration moisture is after dehydration
0.03%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 6
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 3, molecular weight 700g/mol) is added to 2L reactions
In kettle, after adding 5g magnesium silicates, 100g water, wherein the particle diameter of magnesium silicate is 10um, specific surface area 90m2/ g, pore volume are
0.2cm3/g；
(2) 6g tetra- (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol ester is added in 2L reactors, is opened
Open stirring and be warming up to 105 DEG C, stir 1 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 115 DEG C, press filtration moisture is after dehydration
0.08%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 7
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 2, molecular weight 4000g/mol) is added to 2L reactions
In kettle, 15g magnesium silicates, 8gN- cyclohexyl-N'- diphenyl-para-phenylene diamines, 100g water are added, the wherein particle diameter of magnesium silicate is 10um,
Specific surface area is 90m2/ g, pore volume 0.2cm3/g；
(2) open stirring and be warming up to 105 DEG C, stir 1 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 115 DEG C, press filtration moisture is after dehydration
0.01%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Embodiment 8
The process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
(1) 1000g is treated that refined PPG (degree of functionality 4, molecular weight 800g/mol) is added to 2L reactions
In kettle, 10g magnesium silicates, 5g N, N'- diphenyl-para-phenylene diamines are added, the wherein particle diameter of magnesium silicate is 20um, and specific surface area is
100m2/ g, pore volume 0.05cm3/g；
(2) after adding 80g water in 2L reactors, open stirring and be warming up to 105 DEG C, stir 1 hour at this temperature；
(3) vacuum plant is opened, heats up and vacuum dehydration, keeping temperature is 115 DEG C, press filtration moisture is after dehydration
0.01%, produce the PPG of low VOC content.The product performance index of preparation is shown in Table 1.
Comparative example 1
1000g crude polyoxyalkylene polyols a (degree of functionality 3, molecular weight 5000g/mol) is added into 2L stainless steel cauldrons
In, the adsorbent for adding 10g magnesium silicates and silicic acid aluminium mixture opens timing stirring 1h after stirring is warming up to 100 DEG C.Molecular weight
For 1500,80g distilled water is sucked after being cooled to 80 DEG C, after temperature keeps 80 DEG C of stirring 1h, opens vacuum plant and the dehydration that heats up,
Refined PPG finished product is filtrated to get after maintaining the temperature at 110 DEG C of dehydration 2h.The product performance index of preparation is shown in Table 1.
Embodiment 4 in the present invention and comparative example 1 are used into identical crude polyoxyalkylene polyol raw material, used in embodiment 5
Refined PPG content of formaldehyde made from the inventive method is 0.16ppm, acetaldehyde 0.35ppm, level of acrolein
For 0ppm, oder levels 1.0, and using refining PPG first made from Chinese patent CN106589345A in comparing 1
Aldehyde is 1.2ppm, acetaldehyde 1.78ppm, level of acrolein 0.71ppm, oder levels 2.0, therefore using this
Formaldehyde, acetaldehyde, the content of methacrylaldehyde in refined PPG is made in inventive method, so that in refined PPG
VOC values reduce, and smell reduces.
Comparative example 2
By 1000g crude polyoxyalkylene polyols b (degree of functionality 3, molecular weight 3000g/mol), 2L stainless steel cauldrons are added
In, 12g self-control adsorbents are added, open meter stirring 1h after stirring is warming up to 105 DEG C.100g distillations are sucked after being cooled to 90 DEG C
Water, after temperature keeps 90 DEG C of stirring 1h, vacuum plant and the dehydration that heats up are opened, filters, obtains after 115 DEG C of dehydration 2h of keeping temperature
Refined PPG finished product.
Embodiment 5 in the present invention and comparative example 2 are used into identical crude polyoxyalkylene polyol raw material, used in embodiment 5
Refined PPG content of formaldehyde made from the inventive method is 0.11ppm, acetaldehyde 0.26ppm, level of acrolein
For 0ppm, oder levels 1.0, and using refining PPG first made from Chinese patent CN106589345A in comparing 1
Aldehyde is 0.89ppm, acetaldehyde 1.24ppm, level of acrolein 0.56ppm, oder levels 2.0, therefore is used
Formaldehyde, acetaldehyde, the content of methacrylaldehyde in refined PPG is made in the inventive method, so that in refined PPG
VOC values reduce, and smell reduces.
Comparative example 3
1000g crude polyoxyalkylene polyols a (degree of functionality 3, molecular weight 6000g/mol) is added into 2L stainless steel cauldrons
In, the adsorbent for adding 10g magnesium silicates and silicic acid aluminium mixture opens timing stirring 1h after stirring is warming up to 100 DEG C.Molecular weight
For 1500,80g distilled water is sucked after being cooled to 80 DEG C, after temperature keeps 80 DEG C of stirring 1h, opens vacuum plant and the dehydration that heats up,
Refined PPG finished product is filtrated to get after maintaining the temperature at 110 DEG C of dehydration 2h.
Embodiment 3 in the present invention and comparative example 3 are used into identical crude polyoxyalkylene polyol raw material, used in embodiment 3
Refined PPG content of formaldehyde made from the inventive method is 0.14ppm, acetaldehyde 0.91ppm, level of acrolein
For 0ppm, oder levels 1.0, and using refining PPG first made from Chinese patent CN106589345A in comparing 1
Aldehyde is 1.15ppm, acetaldehyde 1.36ppm, level of acrolein 0.63ppm, oder levels 1.0, therefore is used
Formaldehyde, acetaldehyde, the content of methacrylaldehyde in refined PPG is made in the inventive method, so that in refined PPG
VOC values reduce, and smell reduces.
The embodiment 1-8 of table 1 and comparative example refine Contents In Polyether Polyol quality testing data
Formaldehyde, acetaldehyde, the content of methacrylaldehyde effectively drop in the PPG refined as shown in Table 1 using the inventive method
Low, so that VOC values reduce in refined PPG, smell reduces.
Claims (10)
1. the process for purification of VOC content and smell in a kind of reduction PPG, comprises the following steps：
Step 1：Adsorbent is added in refined PPG is treated, the adsorbent is magnesium silicate, and the adsorbent adds
Enter 0.1~1.5% that amount is PPG quality to be refined, the wherein particle size of magnesium silicate is 1~80um, specific surface area
≥40m2/ g, pore volume≤0.5cm3/g；
Step 2：Predetermined temperature is warming up to after adsorbent is added in refined PPG as 95~115 DEG C, stirring 0.1~5
Hour；
Step 3：Heat up and vacuum dehydration, dehydration temperaturre are 105~120 DEG C, moisture requirement≤0.1% after dehydration, after press filtration i.e.
Obtain the PPG of low VOC content；
The water of PPG quality 3~15% to be refined wherein is added in step 1 or step 2.
2. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that
In step 1 or step 2, added in PPG to be refined in Hinered phenols, phosphorous acid esters or hindered amines extremely
A kind of few antioxidant, the addition of antioxidant is the 0.01~1% of PPG quality to be refined；Heated up in step 3 and true
Sky dehydration, dehydration temperaturre are 105~120 DEG C, moisture requirement≤0.05% after dehydration, and the polyethers of low VOC content is produced after press filtration
Polyalcohol.
3. the process for purification of VOC content and smell in PPG is reduced according to claim 2, it is characterised in that be obstructed
Phenolic antioxidant be selected from 6 β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol fat or four (β-(3,5- three-level butyl-
At least one of 4- hydroxy phenyls) propionic acid) pentaerythritol ester；Phosphite ester kind antioxidant is selected from pentaerythritol diphosphite
At least one of two different certain herbaceous plants with big flowers esters, bis-phenol phosphorous ester or three (2,4- di-tert-butyl-phenyls) phosphite esters；Suffocated amine antioxidant
Selected from N, at least one of N'- diphenyl-para-phenylene diamines, N cyclohexyl N' phenyl P phenylene diamine；The addition of antioxidant is
The 0.1~0.6% of the quality of PPG to be refined.
4. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that step
In rapid 1, water is being added after adsorbent is added in refined PPG, is being warming up to 95~115 DEG C of predetermined temperature, the addition of water
Measure as the 3~9% of PPG quality to be refined；In step 2, add after adsorbent is added in refined PPG
Enter water, be warming up to 95~115 DEG C of predetermined temperature, the addition of water is the 3~9% of PPG quality to be refined.
5. the process for purification of VOC content and smell in reduction PPG according to claim 4, it is characterised in that step
Adsorbent is added in rapid 1 in PPG to be refined, 95~115 DEG C of predetermined temperature, the addition of water are warming up to after adding water
Measure as the 5~7.5% of PPG quality to be refined；Adsorbent is added in PPG to be refined in step 2, is added
95~115 DEG C of predetermined temperature is warming up to after water, the addition of water is the 5~7.5% of PPG quality to be refined.
6. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that step
In rapid 1, the addition of the adsorbent is the 0.1~0.95% of PPG quality to be refined, wherein the particle diameter of magnesium silicate
Size is 1~60um, and specific surface area is 50~200m2/ g, pore volume are preferably 0.01~0.3cm3/g。
7. the process for purification of VOC content and smell in reduction PPG according to claim 6, it is characterised in that step
In rapid 1, the addition of the adsorbent is the 0.5~0.95% of PPG quality to be refined, wherein the particle diameter of magnesium silicate
Size is 5~50um, and specific surface area is 80~150m2/ g, pore volume are 0.01~0.1cm3/g。
8. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that institute
It is 1~6 to state polyether polyols alcohol functionalities to be refined, and the molecular weight of PPG is 100~15000g/mol.
9. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that treat
Content of formaldehyde >=2ppm in refined polyether polyols raw polyol；Acetaldehyde >=4ppm；Level of acrolein >=2ppm；Oder levels
≥3。
10. the process for purification of VOC content and smell in reduction PPG according to claim 1, it is characterised in that
Content of formaldehyde≤1ppm in PPG after refined；Acetaldehyde≤1ppm；Level of acrolein is 0ppm；Oder levels≤
1.5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710940203.2A CN107652426B (en) | 2017-10-11 | 2017-10-11 | Reduce VOC content and the refining methd of smell in polyether polyol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710940203.2A CN107652426B (en) | 2017-10-11 | 2017-10-11 | Reduce VOC content and the refining methd of smell in polyether polyol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107652426A true CN107652426A (en) | 2018-02-02 |
| CN107652426B CN107652426B (en) | 2019-11-26 |
Family
ID=61117621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710940203.2A Active CN107652426B (en) | 2017-10-11 | 2017-10-11 | Reduce VOC content and the refining methd of smell in polyether polyol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107652426B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438663A (en) * | 2018-09-25 | 2019-03-08 | 青岛世林新海绵有限公司 | The low fogging sponge of low VOC for automobile interiors and its preparation process |
| CN110256483A (en) * | 2019-05-24 | 2019-09-20 | 佳化化学科技发展（上海）有限公司 | A kind of preparation process of phosphate flame retardant |
| CN110305311A (en) * | 2019-07-31 | 2019-10-08 | 长华化学科技股份有限公司 | The refining methd of allyl alcohol methyl blocking polyether |
| CN111763309A (en) * | 2020-07-22 | 2020-10-13 | 万华化学（烟台）容威聚氨酯有限公司 | Refining method for reducing aldehyde content and odor in polyether polyol |
| WO2021007028A1 (en) * | 2019-07-10 | 2021-01-14 | Covestro Llc | Polymer polyol compositions and their use in the production of flexible polyurethane foams |
| WO2021007031A1 (en) * | 2019-07-10 | 2021-01-14 | Covestro Llc | Amino diphenylamine-started polyether polyols, methods for their production, and flexible polyurethane foams produced using such polyols |
| CN112876666A (en) * | 2021-01-14 | 2021-06-01 | 长华化学科技股份有限公司 | Low-aldehyde and low-odor polyether polyol and preparation method and application thereof |
| CN113773486A (en) * | 2020-06-09 | 2021-12-10 | 中国石油化工股份有限公司 | Refining method of polyether polyol, product and application thereof |
| CN114763410A (en) * | 2021-01-14 | 2022-07-19 | 长华化学科技股份有限公司 | Refining method of polyethylene glycol |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104936A (en) * | 1980-01-24 | 1981-08-21 | Dai Ichi Kogyo Seiyaku Co Ltd | Purification of polyether polyol |
| CN101163735A (en) * | 2005-04-19 | 2008-04-16 | 西巴特殊化学品控股有限公司 | Polyether polyols, polyester polyols and polyurethanes of low residual aldehyde content |
| CN106243338A (en) * | 2016-07-30 | 2016-12-21 | 淄博德信联邦化学工业有限公司 | The preparation method of the polyether polyol of low abnormal smells from the patient low volatile |
| CN106832249A (en) * | 2017-02-06 | 2017-06-13 | 山东诺威新材料有限公司 | The process for purification of low smell polyether polyol with high activity |
-
2017
- 2017-10-11 CN CN201710940203.2A patent/CN107652426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104936A (en) * | 1980-01-24 | 1981-08-21 | Dai Ichi Kogyo Seiyaku Co Ltd | Purification of polyether polyol |
| CN101163735A (en) * | 2005-04-19 | 2008-04-16 | 西巴特殊化学品控股有限公司 | Polyether polyols, polyester polyols and polyurethanes of low residual aldehyde content |
| CN106243338A (en) * | 2016-07-30 | 2016-12-21 | 淄博德信联邦化学工业有限公司 | The preparation method of the polyether polyol of low abnormal smells from the patient low volatile |
| CN106832249A (en) * | 2017-02-06 | 2017-06-13 | 山东诺威新材料有限公司 | The process for purification of low smell polyether polyol with high activity |
Non-Patent Citations (1)
| Title |
|---|
| 魏刚: "《化工分离过程与案例》", 30 June 2009, 中国石化出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438663A (en) * | 2018-09-25 | 2019-03-08 | 青岛世林新海绵有限公司 | The low fogging sponge of low VOC for automobile interiors and its preparation process |
| CN110256483A (en) * | 2019-05-24 | 2019-09-20 | 佳化化学科技发展（上海）有限公司 | A kind of preparation process of phosphate flame retardant |
| WO2021007028A1 (en) * | 2019-07-10 | 2021-01-14 | Covestro Llc | Polymer polyol compositions and their use in the production of flexible polyurethane foams |
| WO2021007031A1 (en) * | 2019-07-10 | 2021-01-14 | Covestro Llc | Amino diphenylamine-started polyether polyols, methods for their production, and flexible polyurethane foams produced using such polyols |
| CN110305311A (en) * | 2019-07-31 | 2019-10-08 | 长华化学科技股份有限公司 | The refining methd of allyl alcohol methyl blocking polyether |
| CN110305311B (en) * | 2019-07-31 | 2021-11-30 | 长华化学科技股份有限公司 | Refining method of allyl alcohol methyl terminated polyether |
| CN113773486A (en) * | 2020-06-09 | 2021-12-10 | 中国石油化工股份有限公司 | Refining method of polyether polyol, product and application thereof |
| CN111763309B (en) * | 2020-07-22 | 2023-01-13 | 万华化学（烟台）容威聚氨酯有限公司 | Refining method for reducing aldehyde content and odor in polyether polyol |
| CN111763309A (en) * | 2020-07-22 | 2020-10-13 | 万华化学（烟台）容威聚氨酯有限公司 | Refining method for reducing aldehyde content and odor in polyether polyol |
| CN112876666A (en) * | 2021-01-14 | 2021-06-01 | 长华化学科技股份有限公司 | Low-aldehyde and low-odor polyether polyol and preparation method and application thereof |
| CN114763410A (en) * | 2021-01-14 | 2022-07-19 | 长华化学科技股份有限公司 | Refining method of polyethylene glycol |
| CN112876666B (en) * | 2021-01-14 | 2023-04-14 | 长华化学科技股份有限公司 | Low-aldehyde and low-odor polyether polyol and preparation method and application thereof |
| CN114763410B (en) * | 2021-01-14 | 2023-06-02 | 长华化学科技股份有限公司 | Polyethylene glycol refining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107652426B (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107652426A (en) | Reduce the process for purification of VOC content and smell in PPG | |
| CN106589345A (en) | Polyether polyol refining method capable of reducing VOC (volatile organic compound) content and odor | |
| CA1062727A (en) | Solvent extraction of oil from peanuts | |
| KR101588768B1 (en) | Active carbon and method for preparation of the same | |
| KR20190072322A (en) | Composite for the removal of VOC and the preparing method thereof | |
| CN112876666B (en) | Low-aldehyde and low-odor polyether polyol and preparation method and application thereof | |
| CN108148192A (en) | Low-odor polyether polyol and preparation method thereof | |
| CN107955703A (en) | A kind of peanut oil and preparation method thereof | |
| CN102070450A (en) | Method for synthesizing tributyl citrate | |
| WO1996006923A1 (en) | Process for the continuous production of beer | |
| CN110305311B (en) | Refining method of allyl alcohol methyl terminated polyether | |
| CN101245220A (en) | Polyurethane water paint | |
| CN107586383B (en) | Refining method for reducing VOC content and odor in polyether polyol | |
| JPH04183794A (en) | Production of purified palm oil | |
| CN107522832A (en) | A kind of bio-based polyurethane polyalcohol and preparation method thereof and the hard polyurethane foam and the method for preparation using its preparation | |
| CN113831963B (en) | Auxiliary filtering medium and preparation method thereof | |
| CN106542842B (en) | A kind of preparation method for the Si-O-C macropore ceramics that pore structure is controllable | |
| Labropoulos et al. | Flavor evaluation and characterization of yogurt as affected by ultra-high temperature and vat processes | |
| US6809053B2 (en) | Method for reactivating sulfonated resin catalyst | |
| CN110407695A (en) | A kind of method of fast hydrolyzing epoxy aliphatic ester preparation biology base mulit-hydroxy fatty acid ester | |
| CN105733818A (en) | Method for reducing anisidine value of DHA grease | |
| KR102096991B1 (en) | The method of concentrating nutraceutical materials from Rice Bran | |
| CN114133567B (en) | Preparation method of polysiloxane cross-linking agent | |
| CN115246995B (en) | Preparation method of high-gel-strength fish scale gelatin-sodium alginate-raspberry extract composite preservative film | |
| RU2219235C1 (en) | Method for production of base for preparing strong alcoholic drinks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |