DE2362920A1 - Verfahren zur kontinuierlichen hydrolyse von polyurethanschaum in einer begrenzten rohrfoermigen reaktionszone und gewinnung von produkten daraus - Google Patents
Verfahren zur kontinuierlichen hydrolyse von polyurethanschaum in einer begrenzten rohrfoermigen reaktionszone und gewinnung von produkten darausInfo
- Publication number
- DE2362920A1 DE2362920A1 DE2362920A DE2362920A DE2362920A1 DE 2362920 A1 DE2362920 A1 DE 2362920A1 DE 2362920 A DE2362920 A DE 2362920A DE 2362920 A DE2362920 A DE 2362920A DE 2362920 A1 DE2362920 A1 DE 2362920A1
- Authority
- DE
- Germany
- Prior art keywords
- zone
- hydrolysis
- gas
- tubular
- polyurethane foam
- 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.)
- Pending
Links
- 230000007062 hydrolysis Effects 0.000 title claims description 73
- 238000006460 hydrolysis reaction Methods 0.000 title claims description 73
- 229920005830 Polyurethane Foam Polymers 0.000 title claims description 30
- 239000011496 polyurethane foam Substances 0.000 title claims description 30
- 238000006243 chemical reaction Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 15
- 238000011084 recovery Methods 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims description 49
- 238000000926 separation method Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 150000004985 diamines Chemical class 0.000 claims description 14
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 238000010924 continuous production Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 125000005442 diisocyanate group Chemical group 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012263 liquid product Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- VYSYZMNJHYOXGN-UHFFFAOYSA-N ethyl n-aminocarbamate Chemical compound CCOC(=O)NN VYSYZMNJHYOXGN-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/315,976 US4025559A (en) | 1972-12-18 | 1972-12-18 | Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2362920A1 true DE2362920A1 (de) | 1974-07-11 |
Family
ID=23226925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2362920A Pending DE2362920A1 (de) | 1972-12-18 | 1973-12-18 | Verfahren zur kontinuierlichen hydrolyse von polyurethanschaum in einer begrenzten rohrfoermigen reaktionszone und gewinnung von produkten daraus |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4025559A (enExample) |
| JP (1) | JPS5339920B2 (enExample) |
| CA (1) | CA1016956A (enExample) |
| DE (1) | DE2362920A1 (enExample) |
| FR (1) | FR2327058A1 (enExample) |
| GB (1) | GB1456251A (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442387A1 (de) * | 1974-09-04 | 1976-03-18 | Bayer Ag | Verfahren zum kontinuierlichen abbau von kunststoffen |
| US4160749A (en) | 1977-03-15 | 1979-07-10 | Bayer Aktiengesellschaft | Process for dissociating polyurethane resins |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4196148A (en) * | 1977-07-18 | 1980-04-01 | Ford Motor Company | Hydrolysis of polyurethane foams |
| US4281197A (en) * | 1979-06-18 | 1981-07-28 | Ford Motor Company | Hydrolytic decomposition method |
| US4328368A (en) * | 1980-05-05 | 1982-05-04 | General Motors Corporation | Method for reclaiming polyurethane foam |
| DE3033330A1 (de) * | 1980-09-04 | 1982-04-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von fluessigen gemischen von isocyanatgruppen aufweisenden verbindungen, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen |
| CA2279541A1 (en) * | 1997-02-05 | 1998-08-13 | Kabushiki Kaisha Kobe Seiko Sho | Apparatus for and process of hydrolyzing and recycling polyisocyanate derivatives |
| JP2007070485A (ja) * | 2005-09-07 | 2007-03-22 | Fuji Electric Systems Co Ltd | ポリウレタン廃棄物の分解処理方法 |
| US20070197668A1 (en) * | 2006-02-20 | 2007-08-23 | Troy Polymers, Inc. | Process for preparing polyols |
| CZ2009620A3 (cs) | 2009-09-22 | 2011-04-06 | Ústav makromolekulární chemie AV CR, v.v.i. | Surovina pro výrobu polyurethanu a zpusob její výroby z odpadního polyurethanu |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3225094A (en) * | 1962-06-15 | 1965-12-21 | Du Pont | Preparation of polyamines by steam hydrolysis of polyisocyanate reaction products |
| US3499035A (en) * | 1967-10-02 | 1970-03-03 | Olin Mathieson | Toluene diamine recovery process |
-
1972
- 1972-12-18 US US05/315,976 patent/US4025559A/en not_active Expired - Lifetime
-
1973
- 1973-09-18 CA CA181,390A patent/CA1016956A/en not_active Expired
- 1973-11-14 GB GB5279473A patent/GB1456251A/en not_active Expired
- 1973-12-13 FR FR7344495A patent/FR2327058A1/fr active Granted
- 1973-12-18 JP JP14041573A patent/JPS5339920B2/ja not_active Expired
- 1973-12-18 DE DE2362920A patent/DE2362920A1/de active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442387A1 (de) * | 1974-09-04 | 1976-03-18 | Bayer Ag | Verfahren zum kontinuierlichen abbau von kunststoffen |
| US4051212A (en) * | 1974-09-04 | 1977-09-27 | Bayer Aktiengesellschaft | Process for the continuous degradation of plastics |
| US4160749A (en) | 1977-03-15 | 1979-07-10 | Bayer Aktiengesellschaft | Process for dissociating polyurethane resins |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2327058A1 (fr) | 1977-05-06 |
| JPS5339920B2 (enExample) | 1978-10-24 |
| FR2327058B1 (enExample) | 1978-03-24 |
| US4025559A (en) | 1977-05-24 |
| CA1016956A (en) | 1977-09-06 |
| GB1456251A (en) | 1976-11-24 |
| JPS4990375A (enExample) | 1974-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OF | Willingness to grant licences before publication of examined application | ||
| OHW | Rejection |