CA1018537A - Method for continuous hydrolysis of polyurethane foam in fluidized bed and recovery of products therefrom - Google Patents
Method for continuous hydrolysis of polyurethane foam in fluidized bed and recovery of products therefromInfo
- Publication number
- CA1018537A CA1018537A CA181,391A CA181391A CA1018537A CA 1018537 A CA1018537 A CA 1018537A CA 181391 A CA181391 A CA 181391A CA 1018537 A CA1018537 A CA 1018537A
- Authority
- CA
- Canada
- Prior art keywords
- recovery
- fluidized bed
- polyurethane foam
- products therefrom
- continuous hydrolysis
- 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.)
- Expired
Links
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)
- Polyurethanes Or Polyureas (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31597772A | 1972-12-18 | 1972-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1018537A true CA1018537A (en) | 1977-10-04 |
Family
ID=23226933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA181,391A Expired CA1018537A (en) | 1972-12-18 | 1973-09-18 | Method for continuous hydrolysis of polyurethane foam in fluidized bed and recovery of products therefrom |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5319039B2 (en) |
CA (1) | CA1018537A (en) |
DE (1) | DE2362919A1 (en) |
FR (1) | FR2210494B1 (en) |
GB (1) | GB1456252A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2442387C3 (en) * | 1974-09-04 | 1981-09-10 | Bayer Ag, 5090 Leverkusen | Process for the continuous hydrolytic breakdown of hydrolyzable plastic waste |
DE2862318D1 (en) * | 1978-11-29 | 1983-10-20 | Ford Motor Co | Hydrolysis of polyurethanes |
DE3033330A1 (en) | 1980-09-04 | 1982-04-29 | Bayer Ag, 5090 Leverkusen | METHOD FOR THE PRODUCTION OF LIQUID MIXTURES OF COMPOUNDS CONTAINING ISOCYANATE GROUPS, AND THEIR USE AS A BUILDING COMPONENT IN THE PRODUCTION OF POLYURETHANE PLASTICS |
GB2616488A (en) * | 2022-09-02 | 2023-09-13 | Sru Innovations Ltd | Steam treatment of waste |
Family Cites Families (1)
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 |
-
1973
- 1973-09-18 CA CA181,391A patent/CA1018537A/en not_active Expired
- 1973-11-15 GB GB5302573A patent/GB1456252A/en not_active Expired
- 1973-12-12 FR FR7344393A patent/FR2210494B1/fr not_active Expired
- 1973-12-18 JP JP14041473A patent/JPS5319039B2/ja not_active Expired
- 1973-12-18 DE DE2362919A patent/DE2362919A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2210494B1 (en) | 1977-08-19 |
GB1456252A (en) | 1976-11-24 |
FR2210494A1 (en) | 1974-07-12 |
JPS4989778A (en) | 1974-08-27 |
DE2362919A1 (en) | 1974-07-11 |
JPS5319039B2 (en) | 1978-06-19 |
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