CN206143108U - Retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue - Google Patents
Retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue Download PDFInfo
- Publication number
- CN206143108U CN206143108U CN201620402368.5U CN201620402368U CN206143108U CN 206143108 U CN206143108 U CN 206143108U CN 201620402368 U CN201620402368 U CN 201620402368U CN 206143108 U CN206143108 U CN 206143108U
- Authority
- CN
- China
- Prior art keywords
- polyether glycol
- polyether polyol
- heat exchanger
- dihydrogen phosphate
- potassium dihydrogen
- 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.)
- Active
Links
- 229920000570 polyether Polymers 0.000 title claims abstract description 49
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 48
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910000402 monopotassium phosphate Inorganic materials 0.000 title claims abstract description 19
- 235000019796 monopotassium phosphate Nutrition 0.000 title claims abstract description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title abstract 18
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 title abstract 9
- 238000000605 extraction Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 229920005862 polyol Polymers 0.000 claims description 39
- 150000003077 polyols Chemical class 0.000 claims description 39
- 238000001914 filtration Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 16
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 9
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 6
- 239000000391 magnesium silicate Substances 0.000 description 6
- 229910052919 magnesium silicate Inorganic materials 0.000 description 6
- 235000019792 magnesium silicate Nutrition 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical group [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- -1 extraction kettle Chemical compound 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Polyethers (AREA)
Abstract
The utility model provides a retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue, it is including the extraction cauldron, plate filter and stills, utilize the pure alcohol can all dissolve polyether glycol, realize filter residue and polyether glycol's solid -liquid separation, it is different with the polyether glycol boiling point to recycle the pure alcohol, at stills internal separation pure alcohol and polyether glycol, it retrieves to evaporate the pure alcohol condensation in the heat exchanger that, the polyether glycol purity of acquireing like this is high, and do not produce waste water among the acquisition process, and the new technology is suitable for industrialized production.
Description
Technical field
This utility model is related to a kind of retracting device, be mainly used in from polyether polyol filtering residue reclaim polyether polyol and
Potassium dihydrogen phosphate, belongs to separation technology field.
Background technology
Polyether polyol mainly for the preparation of soft, hard, semi-hard polyurethane foam plastic, be widely used in refrigerator,
The fields such as refrigerator-freezer, refrigerator car, thermal insulation board, pipe insulation, wall thermal insulating, decorative coveringn.In production process, major part adopts highly basic
System (potassium hydroxide) forms polyether polyol potassium alcoholate, is needed potassium during polyether polyol is refined into as catalyst
Ion solution is removed, and adds nertralizer phosphoric acid and magnesium silicate, forms polyether polyol and potassium dihydrogen phosphate, divide through filtering after dehydration
From, polyether polyol filtering residue is formed, these polyether polyol filtering residues contain polyether polyol (about 30%), 50% potassium dihydrogen phosphate
With 20% magnesium silicate.
Conventional processing method is that filtering residue is put in cement pond simply to be washed with steam and water, and stirring stands,
By the polyether polyol aqueous solution dehydration isolated, low-quality polyether polyol is obtained；Remaining waste residue (containing potassium dihydrogen phosphate and
Magnesium silicate and water) sell at a bargain.The polyether polyol color that this processing method is obtained is deeper, and quality is relatively low, it is impossible to used as conjunction
Lattice product, and energy consumption is more in process, and the waste water of generation needs environmental protection treatment.
The content of the invention
Technical problem described in the utility model is solved by the following technical programs：
The device of polyether polyol and potassium dihydrogen phosphate, including extraction kettle, plate are reclaimed in a kind of filtering residue from polyether polyol
Formula filter and distillating still, the extraction kettle arrange pipeline communication by pipeline communication plate filter at the top of plate filter
3rd heat exchanger, plate filter outlet connect distillating still by pipeline, connect First Heat Exchanger, the 3rd heat exchanger after distillating still
Arrange with the 3rd exchanger base and receive tank.
The device of polyether polyol and potassium dihydrogen phosphate, the First Heat Exchanger are reclaimed in the above-mentioned filtering residue from polyether polyol
Second heat exchanger in parallel, the 3rd heat exchanger the 4th heat exchanger of parallel connection, two heat exchangers in parallel are used for secondary separation.
The device of polyether polyol and potassium dihydrogen phosphate is reclaimed in the above-mentioned filtering residue from polyether polyol, at the top of the extraction kettle
Charging hopper is set.
The device of polyether polyol and potassium dihydrogen phosphate, the extraction kettle and steaming are reclaimed in the above-mentioned filtering residue from polyether polyol
Evaporate.
This utility model has advantages below：
This utility model arranges extraction kettle, plate filter and distillating still, can all dissolve polyethers using dehydrated alcohol
Polyhydric alcohol, and the potassium dihydrogen phosphate and magnesium silicate in insoluble filtering residue, realize solid-liquid separation, extract polyether polyol.Utilize
Dehydrated alcohol is different from polyether polyol boiling point, separating anhydrous ethanol and polyether polyol in distillating still.What is evaporated is anhydrous
Ethanol is condensed in heat exchanger, is reclaimed.
Description of the drawings
Fig. 1 is this utility model structural representation.
In figure, each label is expressed as：1st, charging hopper, 2, extraction kettle, 3, plate filter, 4, distillating still, 5, first
Heat exchanger, 6, receive tank, the 7, second heat exchanger, the 8, the 3rd heat exchanger, the 9, the 4th heat exchanger, 10, vacuum pump, 11, blow-down pipe.
Specific embodiment
Refering to accompanying drawing 1, this utility model makees solvent using dehydrated alcohol and reclaims polyether polyols from polyether polyol filtering residue
Alcohol and potassium dihydrogen phosphate, including extraction kettle 2, plate filter 3 and distillating still 4, the extraction kettle 4 pass through the board-like mistake of pipeline communication
Filter 3, arranges the 3rd heat exchanger 8 of pipeline communication at the top of plate filter 3, the outlet of plate filter 3 is distilled by pipeline connection
Kettle 4, connects First Heat Exchanger 5 after distillating still 4, the 3rd heat exchanger 8 is arranged with 5 bottom of First Heat Exchanger and receives tank 6, and described first
8 second heat exchanger 7 in parallel of heat exchanger, 8 the 4th heat exchanger 9 in parallel of the 3rd heat exchanger, two heat exchangers in parallel are used for secondary point
From；Charging hopper 1 is set at the top of extraction kettle 2, and 10 external blow-down pipe 11 of vacuum pump is provided with stirring in extraction kettle 2 and distillating still 4
Device.
Utility model works process is as follows, in extraction kettle 2 adds dehydrated alcohol, from charging hopper 1 to extraction kettle 2 in
Filtering residue is slowly added to, is stirred while adding, it is 20 DEG C～40 DEG C dissolving polyether polyol filtering residues to arrange 2 temperature of extraction kettle, due to
Dehydrated alcohol is volatile substances, its boiling point be 78.6 DEG C, when temperature be 20 DEG C～40 DEG C when, it is possible to decrease dehydrated alcohol due to
The loss evaporated and produce.
After mixing, filtered into plate filter 3 by pipeline, the potassium dihydrogen phosphate and magnesium silicate in filtering residue does not dissolve in nothing
Water-ethanol, so as to realize polyether polyol purpose detached with potassium dihydrogen phosphate and magnesium silicate.The filtrate for leaching is in distillating still 4
Vacuum distillation is carried out, the separation of polyether polyol and dehydrated alcohol is realized, the vapo(u)rizing temperature adopted in operation is steamed for 79-120 DEG C
Pressure is evaporated for -0.03～-0.02MPa.As dehydrated alcohol boiling point is 78.6 DEG C, dehydration temperaturre is controlled at 79-120 DEG C, makes nothing
Water-ethanol can be purified completely, so as to ensure to reclaim the purity of the polyether polyol for obtaining.
Heat exchanger in parallel is set, the dehydrated alcohol that generation is evaporated in whole course of reaction is all recycled.And
The solid phosphoric acid potassium dihydrogen moisture-free isolated and color are white, can sell directly as potash fertilizer.
Claims (4)
1. the device of polyether polyol and potassium dihydrogen phosphate is reclaimed in a kind of filtering residue from polyether polyol, it is characterised in that included
Extraction kettle (2), plate filter (3) and distillating still (4), the extraction kettle (2) is by pipeline communication plate filter (3), plate
The 3rd heat exchanger (8) of pipeline communication is set at the top of formula filter (3), and plate filter (3) outlet connects distillating still by pipeline
(4), distillating still (4) connects First Heat Exchanger (5) afterwards, and the 3rd heat exchanger (8) is arranged with the 3rd heat exchanger (8) bottom and receives tank
(6)。
2. the dress of polyether polyol and potassium dihydrogen phosphate is reclaimed in a kind of filtering residue from polyether polyol according to claim 1
Put, it is characterised in that the First Heat Exchanger (5) the second heat exchanger (7) in parallel, the 3rd heat exchanger (8) the 4th heat exchanger of parallel connection
(9), two heat exchangers in parallel are used for secondary separation.
3. the dress of polyether polyol and potassium dihydrogen phosphate is reclaimed in a kind of filtering residue from polyether polyol according to claim 2
Put, it is characterised in that charging hopper (1) is set at the top of the extraction kettle (2).
4. the dress of polyether polyol and potassium dihydrogen phosphate is reclaimed in a kind of filtering residue from polyether polyol according to claim 3
Put, it is characterised in that in the extraction kettle (2) and distillating still (4), be provided with agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402368.5U CN206143108U (en) | 2016-05-06 | 2016-05-06 | Retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402368.5U CN206143108U (en) | 2016-05-06 | 2016-05-06 | Retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206143108U true CN206143108U (en) | 2017-05-03 |
Family
ID=58617331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620402368.5U Active CN206143108U (en) | 2016-05-06 | 2016-05-06 | Retrieve polyether glycol and potassium dihydrogen phosphate's device in follow polyether glycol filter residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206143108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530616A (en) * | 2018-05-22 | 2018-09-14 | 南京红宝丽聚氨酯有限公司 | Polyethers refines and waste residue separator |
| CN114149613A (en) * | 2021-12-14 | 2022-03-08 | 山东蓝星东大有限公司 | Method for extracting and purifying polyether polyol waste residues |
-
2016
- 2016-05-06 CN CN201620402368.5U patent/CN206143108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530616A (en) * | 2018-05-22 | 2018-09-14 | 南京红宝丽聚氨酯有限公司 | Polyethers refines and waste residue separator |
| CN114149613A (en) * | 2021-12-14 | 2022-03-08 | 山东蓝星东大有限公司 | Method for extracting and purifying polyether polyol waste residues |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai yadongshi New Technology Group Co.,Ltd. Assignor: HEBEI YADONG CHEMICAL GROUP Co.,Ltd. Contract record no.: X2021130000018 Denomination of utility model: A device for recovering polyether polyol and potassium dihydrogen phosphate from polyether polyol filter residue Granted publication date: 20170503 License type: Common License Record date: 20211009 |
|
| EE01 | Entry into force of recordation of patent licensing contract |