CN104130389B - Reduce the method for polyether glycol VOC content - Google Patents
Reduce the method for polyether glycol VOC content Download PDFInfo
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- CN104130389B CN104130389B CN201410383509.9A CN201410383509A CN104130389B CN 104130389 B CN104130389 B CN 104130389B CN 201410383509 A CN201410383509 A CN 201410383509A CN 104130389 B CN104130389 B CN 104130389B
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- polyether glycol
- present
- voc content
- polyether
- polyether polyol
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229920000570 polyether Polymers 0.000 title claims abstract description 52
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 51
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229920005862 polyol Polymers 0.000 claims abstract description 24
- 150000003077 polyols Chemical class 0.000 claims abstract description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000009257 reactivity Effects 0.000 claims abstract description 11
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229920002635 polyurethane Polymers 0.000 abstract description 6
- 239000004814 polyurethane Substances 0.000 abstract description 6
- 239000000047 product Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract description 2
- 239000012855 volatile organic compound Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003988 headspace gas chromatography Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical group O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to a kind of method reducing polyether glycol VOC content, belong to chemical technology field.Superoxide, in closed reactor, is joined in polyether glycol by the feeding line stretched at the bottom of still, is mixed under certain pressure and temperature by the present invention, then carries out aftertreatment to mixture and obtains the low Contents In Polyether Polyol of VOC content.Compared with the soft bubble of general high reactivity, rigid-foam polyether polyol, the VOC content of the Contents In Polyether Polyol that the present invention obtains significantly reduces, and obtained polyurethane product smell improves obviously; Reaction product of the present invention can effectively be separated by the method for vacuum removal, can not cause detrimentally affect in reduction polyether glycol process to its subsequent applications; In the present invention hydrogen peroxide add without the need to scrap build, the reactor carrying out polyether glycol production just can carry out.The present invention improves Contents In Polyether Polyol quality, has good economic benefit and environmental benefit.
Description
Technical field
The present invention relates to a kind of method reducing polyether glycol VOC content, belong to chemical technology field.
Background technology
Polyether glycol is one of important source material of polyurethane industries among others, is widely used in the every field in living, as furniture building materials, and automotive trim, lagging material etc.Along with the raising of people's living standard, VOC (volatile organic compounds) problem of polyurethane material has become the focus of public attention, causes human body encroached on as automotive trim VOC distributes, and in fitment material for family, formaldehyde is carcinogenic etc.Polyether glycol is as the basic material of polyurethane industries among others, its in building-up process because raw material is brought into, the many factors such as side reaction generates, the various auxiliary agents that aftertreatment is added cause having quite a few unpredictalbe VOC organism to be separated in Contents In Polyether Polyol.These materials are as various aldehydes, and benzene class contacts field frequently as being applied in people after making polyurethane product, may to Air quality, and human body causes unpredictable harm.Each polyethers factory commercial city domestic VOC content in positive regard polyether glycol reduces problem.
Summary of the invention
The object of the present invention is to provide a kind of method reducing polyether glycol VOC content, it effectively reduces the VOC content of polyether glycol, improves Contents In Polyether Polyol quality, has good economic benefit and environmental benefit.
The method of reduction polyether glycol VOC content of the present invention, in closed reactor, superoxide is joined in polyether glycol by the feeding line stretched at the bottom of still, mix under certain pressure and temperature, then aftertreatment is carried out to mixture and obtain the low Contents In Polyether Polyol of VOC content.
Described superoxide is hydrogen peroxide.
The special feed postition of described superoxide is be added in polyether glycol by hydrogen peroxide by the feeding line stretched at the bottom of still.
Described peroxide charge accounts for 1% ~ 20% of polyether glycol quality, and preferably 10% ~ 15%.
Described polyether glycol is high reactivity polyether polyol for soft PU foam.
Described blend pressure is preferably 0.01 ~ 0.15MPa, and mixing temperature is preferably 30 ~ 50 DEG C.
Described post processing mode is vacuum removal.
Described vacuum removal mode removes from still pucking bubble for adopting nitrogen.
Described vacuum removal temperature is preferably 65 ~ 80 DEG C, and removing pressure is-0.02 ~-0.08MPa.
In the present invention, superoxide is taked to be added by the feeding line stretched at the bottom of still, can ensure superoxide and the abundant contact reacts of VOC material be free in polyether glycol; The oxygen that lower mixing temperature can avoid superoxide to discharge produces oxygenizement to polyether glycol, thus prevents product colourity from rising; Peroxide reactions completes other materials such as the water of generation and small molecules acid, oxygen, is removed through vacuum pipeline by the mode of vacuum removal, adopts the mode of still pucking bubble can accelerate moisture and VOC material is deviate from.
The present invention compared with prior art, has following beneficial effect:
(1) compared with the soft bubble of general high reactivity, rigid-foam polyether polyol, the VOC content of the Contents In Polyether Polyol that the present invention obtains significantly reduces, and obtained polyurethane product smell improves obviously.
(2) reaction product of the present invention can effectively be separated by the method for vacuum removal, can not cause detrimentally affect in reduction polyether glycol process to its subsequent applications.
(3) in the present invention hydrogen peroxide add without the need to scrap build, the reactor carrying out polyether glycol production just can carry out.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but it does not limit enforcement of the present invention.
Embodiment 1
2500g high reactivity polyether polyol for soft PU foam EP-330NG (Shandong Lanxing Dongda Chemical Co., Ltd's production) is added in 3L stainless steel cauldron, open and stir, temperature keeps 35 ± 5 DEG C, and pressure keeps 0.1 ± 0.05MPa, 25g hydrogen peroxide is slowly passed at the bottom of still, stirs 2h.Be warming up to 65 DEG C afterwards, open vacuum, slowly blast nitrogen, keep pressure at-0.05 ± 0.01MPa, remove 2h, obtain Contents In Polyether Polyol.
Embodiment 2
2500g high reactivity polyether polyol for soft PU foam EP-3600 (Shandong Lanxing Dongda Chemical Co., Ltd's production) is added in 3L stainless steel cauldron, open and stir, temperature keeps 45 ± 5 DEG C, and pressure keeps 0.1 ± 0.02MPa, 250g hydrogen peroxide is slowly passed at the bottom of still, stirs 2h.Be warming up to 75 DEG C afterwards, open vacuum, slowly blast nitrogen, keep pressure at-0.05 ± 0.03MPa, remove 2h, obtain Contents In Polyether Polyol.
Embodiment 3
2500g high reactivity polyether polyol for soft PU foam EP-330NG (Shandong Lanxing Dongda Chemical Co., Ltd's production) is added in 3L stainless steel cauldron, open and stir, temperature keeps 45 ± 5 DEG C, pressure keeps 0.1 ± 0.03MPa, 375g hydrogen peroxide is slowly passed at the bottom of still, stirs 2h.Be warming up to 70 DEG C afterwards, open vacuum, slowly blast nitrogen, keep pressure at-0.05 ± 0.03MPa, remove 2h, obtain Contents In Polyether Polyol.
Embodiment 4
2500g high reactivity polyether polyol for soft PU foam EP-3600 (Shandong Lanxing Dongda Chemical Co., Ltd's production) is added in 3L stainless steel cauldron, open and stir, temperature keeps 35 ± 5 DEG C, pressure keeps 0.12 ± 0.02MPa, 500g hydrogen peroxide is slowly passed at the bottom of still, stirs 2h.Be warming up to 80 DEG C afterwards, open vacuum, slowly blast nitrogen, keep pressure at-0.05 ± 0.01MPa, remove 2h, obtain Contents In Polyether Polyol.
Comparative example 1
2500g high reactivity polyether polyol for soft PU foam EP-330NG (Shandong Lanxing Dongda Chemical Co., Ltd's production), does not carry out the operation reducing VOC content.
Comparative example 2
2500g high reactivity polyether polyol for soft PU foam EP-3600 (Shandong Lanxing Dongda Chemical Co., Ltd's production) does not carry out the operation reducing VOC content.
Product in Example 1-4 products obtained therefrom and comparative example, carry out the VOC substance-measurings such as formaldehyde, acetaldehyde, propenal by static head space gas chromatography method, result is as shown in table 1.
Table 1 embodiment 1-4 and comparative example VOC substance-measuring Comparative result
| Sample | EP-330NG | EP-3600 | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Formaldehyde content | 5 | 6 | 4 | 3 | 2 | 3 |
| Acetaldehyde | 8 | 9 | 7 | 4 | 4 | 5 |
| Level of acrolein | 7 | 8 | 6 | 5 | 3 | 4 |
Can be found out by table 1, utilize after high reactivity polyether polyol for soft PU foam carries out art breading by method provided by the invention, test smell obviously reduces, and the VOC substances content such as volatile aldehyde contained by it obviously reduce.Method provided by the invention has larger help to Contents In Polyether Polyol increased quality, has good economic benefit and environmental benefit.
Claims (2)
1. one kind is reduced the method for polyether glycol VOC content, it is characterized in that: in closed reactor, superoxide is joined in polyether glycol by the feeding line stretched at the bottom of still, mix under certain pressure and temperature, then aftertreatment is carried out to mixture and obtain the low Contents In Polyether Polyol of VOC content;
Superoxide is hydrogen peroxide;
Peroxide charge accounts for 1% ~ 20% of polyether glycol quality;
Polyether glycol is high reactivity polyether polyol for soft PU foam;
Blend pressure is 0.01 ~ 0.15MPa, and mixing temperature is 30 ~ 50 DEG C;
Post processing mode is vacuum removal;
Vacuum removal mode removes from still pucking bubble for adopting nitrogen;
Vacuum removal temperature is 65 ~ 80 DEG C, and removing pressure is-0.02 ~-0.08MPa.
2. the method for reduction polyether glycol VOC content according to claim 1, is characterized in that: peroxide charge accounts for 10% ~ 15% of polyether glycol quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383509.9A CN104130389B (en) | 2014-08-06 | 2014-08-06 | Reduce the method for polyether glycol VOC content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383509.9A CN104130389B (en) | 2014-08-06 | 2014-08-06 | Reduce the method for polyether glycol VOC content |
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| Publication Number | Publication Date |
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| CN104130389A CN104130389A (en) | 2014-11-05 |
| CN104130389B true CN104130389B (en) | 2016-04-13 |
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| CN201410383509.9A Active CN104130389B (en) | 2014-08-06 | 2014-08-06 | Reduce the method for polyether glycol VOC content |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543427B (en) * | 2016-11-01 | 2018-08-28 | 万华化学集团股份有限公司 | Volatile materials and the method for reducing smell in a kind of removing polyether polyol |
| CN107522855A (en) * | 2017-09-05 | 2017-12-29 | 句容宁武新材料股份有限公司 | The method that polyether polyol odor is reduced by trapping agent and catalysis oxidation collaboration |
| CN109096479A (en) * | 2018-08-22 | 2018-12-28 | 句容宁武新材料股份有限公司 | A kind of method of propionic aldehyde content in reduction polyether polyol |
| CN109081915A (en) * | 2018-08-22 | 2018-12-25 | 句容宁武新材料股份有限公司 | A kind of method of acetaldehyde in reduction polyether polyol |
| CN110483759A (en) * | 2019-09-18 | 2019-11-22 | 福建省天骄化学材料有限公司 | A kind of preparation method of low VOC polyether polyol |
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| DK2217567T3 (en) * | 2007-12-06 | 2016-08-22 | Dsm Ip Assets Bv | peroxide |
| CN102796365A (en) * | 2011-05-24 | 2012-11-28 | 王道前 | Polyurethane (PU) energy gathering building wall brick |
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Address after: 255086 Shandong high tech Zone in Zibo City, Jinan Qingdao Road No. 29 Patentee after: SHANDONG BLUESTAR DONGDA CO.,LTD. Address before: 255000, Zhangdian District, Zibo, Shandong (Zibo hi tech Zone), 309 north of the State Road, and the east of the thermal power plant Patentee before: Shandong Dongda Chemical Industry Co.,Ltd. |
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Address after: No. 25888 North Outer Ring Road, Huantai County, Zibo City, Shandong Province, 256400 Patentee after: Zhonghua Dongda (Zibo) Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 255086 No.29, Jiqing Road, high tech Zone, Zibo City, Shandong Province Patentee before: SHANDONG BLUESTAR DONGDA CO.,LTD. Guo jiahuodiqu before: Zhong Guo |