CN109081916A - A kind of method of propionic acid and residual catalyst in removal polyether polyol - Google Patents
A kind of method of propionic acid and residual catalyst in removal polyether polyol Download PDFInfo
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- CN109081916A CN109081916A CN201810959251.0A CN201810959251A CN109081916A CN 109081916 A CN109081916 A CN 109081916A CN 201810959251 A CN201810959251 A CN 201810959251A CN 109081916 A CN109081916 A CN 109081916A
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- CN
- China
- Prior art keywords
- polyether polyol
- propionic acid
- alkaline matter
- mixed
- magnesium silicate
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- 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
Abstract
The invention discloses a kind of methods of propionic acid and residual catalyst in removal polyether polyol, this method using particular solid alkaline matter by polyether polyol propionic acid and cobalt metalloid complex catalyst impurity remove simultaneously, it is specific as follows: to be mixed using particular solid alkaline matter and polyether polyol, then the mode by filtering removes solids, obtains polyether polyol；Particular solid alkaline matter is the porosity aluminium-magnesium silicate by alkali process, has alkaline matter in the duct of the porosity aluminium-magnesium silicate, and porosity aluminium-magnesium silicate dosage is the 0.1 ~ 2% of polyether polyol quality.This method in process for production of polyether polyols, by solid alkaline adsorbent by polyether polyol propionic acid and cobalt metalloid complex catalyst impurity remove simultaneously, improve polyether polyol quality, while simple and direct, energy saving, safe and reliable.
Description
Technical field
The invention belongs to the preparation method of high-molecular compound, in specifically a kind of removal polyether polyol propionic acid and
The method of residual catalyst.
Background technique
Polyether polyol abbreviation polyethers, the extensive application in civilian product, such as it is high for manufacturing automobile polyurethane
Cushion, steering wheel are sprung back, for building decoration, heat preservation and imitation wood furniture etc..One can be generated in process for production of polyether polyols
Fixed propionic aldehyde can be added catalyst and it is promoted to be converted into propionic acid, then just need to remove propionic acid and catalysis to remove propionic aldehyde
Agent.
By propionic aldehyde in polyether polyol be converted into propionic acid catalyst can there are many, use cobalt metalloid complex catalyst
Efficiently and dosage is few, and the content of propionic acid uses generally in tens ppm between several hundred ppm in inverted rear polyether polyol
Cobalt metalloid complex catalyst dosage is usually several ppm to tens ppm of polyether quality, but if propionic acid remains in polyethers
In remain in beyond 5ppm or cobalt metalloid complex catalyst beyond 3ppm in polyethers, the application of polyethers can all be generated larger
Influence, for the polyethers of higher quality, the lower propionic acid and cobalt metalloid complex catalyst residual quantity the better.
How efficiently, the propionic acid and remaining cobalt metalloid complex catalyst in polyether polyol are quickly and easily removed, it is right
It is particularly significant in the polyether polyols alcohol production of high-quality.
Summary of the invention
The object of the present invention is to provide a kind of method of propionic acid and residual catalyst in removal polyether polyol, by poly-
In ether be added using particular solid alkaline matter by polyether polyol propionic acid and remaining cobalt metalloid complex catalyst it is miscellaneous
Matter removes simultaneously.
The purpose of the present invention is achieved through the following technical solutions:
A kind of method of propionic acid and residual catalyst in removal polyether polyol, it is characterised in that: this method is using specific
Solid basic material by polyether polyol propionic acid and cobalt metalloid complex catalyst impurity remove simultaneously, it is specific as follows:
It is mixed using particular solid alkaline matter and polyether polyol, then the mode by filtering removes solid
Object obtains polyether polyol；Particular solid alkaline matter is the porosity aluminium-magnesium silicate by alkali process, the porosity magnesium silicate
Has alkaline matter in the duct of aluminium, porosity aluminium-magnesium silicate dosage is the 0.1~2% of polyether polyol quality.
In the present invention, it is mixed using particular solid alkaline matter and polyether polyol, Discrete control temperature and time,
Specifically: the first stage is mixed, temperature is 70~90 DEG C, and the time is 0.5~1.5 hour；Second stage, temperature is mixed
Degree is 105~125 DEG C, and the time is 1~3 hour.
It is mixed using particular solid alkaline matter and polyether polyol, then the mode by filtering removes solid
Object, is mixed and filtering overall process carries out nitrogen protection.
Beneficial effects of the present invention:
(1) disposably by polyether polyol propionic acid and remaining cobalt metalloid complex catalyst remove simultaneously, mention
High polyether polyol quality, at the same it is simple and direct, energy saving.
(2) impurity in polyether polyol is filtered out by way of adsorbing and filtering, process safety is easily-controllable.
Specific embodiment
A kind of method of propionic acid and residual catalyst in removal polyether polyol, using particular solid alkaline matter by polyethers
Propionic acid and cobalt metalloid complex catalyst impurity in polyalcohol remove simultaneously, and particular solid alkaline matter is by alkali process
Porosity aluminium-magnesium silicate has alkaline matter in the duct of the porosity aluminium-magnesium silicate, and porosity aluminium-magnesium silicate and polyethers is more
First alcohol is mixed, Discrete control temperature and time.
The propionic acid being mixed in the alkaline matter and polyethers that the first stage mainly allows porosity aluminium-magnesium silicate to adhere to is anti-
It answers, is conducive to react controlled at 70~90 DEG C, the time is 0.5~1.5 hour more abundant；Second stage master is mixed
If porosity aluminium-magnesium silicate adsorption of cobalt metalloid complex catalyst, temperature is 105~125 DEG C and is conducive to improve adsorption effect,
Time is 1~3 hour relatively more abundant.Then the mode by filtering removes solids, it is succinct in this way, efficiently remove simultaneously it is poly-
Propionic acid and cobalt metalloid complex catalyst in ethoxylated polyhydric alcohol, obtain high-quality polyether polyol.
Embodiment 1
A kind of method of propionic acid and catalyst in removal polyether polyol:
30 kilograms of NJ-360N polyethers (production of Jurong Ningwu new material limited liability company) is added in 50L reaction kettle, is added
Enter 600 grams of porosity aluminium-magnesium silicates (production of Yong Hua new material Co., Ltd of Zaoyang Hubei), controls 90 DEG C and stir 0.5 hour；So
125 DEG C are controlled afterwards to stir 1 hour, obtain high-quality polyether polyol after finally filtering removal solids.
Subordinate list 1: conventional production polyethers is compared with propionic acid content in this example polyethers
| Polyethers title | Propionic acid content (ppm) | Cobalt metalloid complex catalysis agent content (ppm) |
| Conventional production polyethers | 5 | 3 |
| 1 polyethers of this example | 0.5 | 1 |
Embodiment 2
A kind of method of propionic acid and catalyst in removal polyether polyol:
30 kilograms of NJ-310 polyethers (production of Jurong Ningwu new material limited liability company) is added in 50L reaction kettle, is added
Enter 30 grams of porosity aluminium-magnesium silicates (production of Yong Hua new material Co., Ltd of Zaoyang Hubei), controls 70 DEG C and stir 1.5 hours；Then
It controls 105 DEG C to stir 3 hours, obtains high-quality polyether polyol after finally filtering removal solids.
Subordinate list 2: conventional production polyethers is compared with propionic acid content in this example polyethers
Claims (3)
1. a kind of method of propionic acid and residual catalyst in removal polyether polyol, it is characterised in that: this method is using specific solid
Body alkaline matter by polyether polyol propionic acid and cobalt metalloid complex catalyst impurity remove simultaneously, it is specific as follows:
It is mixed using particular solid alkaline matter and polyether polyol, then the mode by filtering removes solids, obtains
To polyether polyol；Particular solid alkaline matter is the porosity aluminium-magnesium silicate by alkali process, the porosity aluminium-magnesium silicate
Has alkaline matter in duct, porosity aluminium-magnesium silicate dosage is the 0.1 ~ 2% of polyether polyol quality.
2. the method for propionic acid and residual catalyst in removal polyether polyol according to claim 1, it is characterised in that: adopt
It is mixed with particular solid alkaline matter and polyether polyol, Discrete control temperature and time, specifically: it is mixed first
Stage, temperature are 70 ~ 90oC, time are 0.5 ~ 1.5 hour；Second stage is mixed, temperature is 105 ~ 125oC, the time be 1 ~
3 hours.
3. the method for propionic acid and residual catalyst in removal polyether polyol according to claim 1, it is characterised in that: adopt
It is mixed with particular solid alkaline matter and polyether polyol, then the mode by filtering removes solids, is mixed
Nitrogen protection is carried out with filtering overall process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959251.0A CN109081916A (en) | 2018-08-22 | 2018-08-22 | A kind of method of propionic acid and residual catalyst in removal polyether polyol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959251.0A CN109081916A (en) | 2018-08-22 | 2018-08-22 | A kind of method of propionic acid and residual catalyst in removal polyether polyol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109081916A true CN109081916A (en) | 2018-12-25 |
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| CN201810959251.0A Pending CN109081916A (en) | 2018-08-22 | 2018-08-22 | A kind of method of propionic acid and residual catalyst in removal polyether polyol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053994A (en) * | 2021-10-29 | 2022-02-18 | 绍兴上虞洁华化工有限公司 | Preparation and application of high-strength polyether refining agent magnesium aluminum silicate |
| CN115368548A (en) * | 2022-09-27 | 2022-11-22 | 杭州普力材料科技有限公司 | Purification method and purification product of polycarbonate polyether polyol |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-08-22 CN CN201810959251.0A patent/CN109081916A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053994A (en) * | 2021-10-29 | 2022-02-18 | 绍兴上虞洁华化工有限公司 | Preparation and application of high-strength polyether refining agent magnesium aluminum silicate |
| CN115368548A (en) * | 2022-09-27 | 2022-11-22 | 杭州普力材料科技有限公司 | Purification method and purification product of polycarbonate polyether polyol |
| CN115368548B (en) * | 2022-09-27 | 2023-12-01 | 杭州普力材料科技有限公司 | Purification method of polycarbonate polyether polyol and purified product |
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