JPS5653128A - Recovery and regeneration of raw material from polyurethane - Google Patents
Recovery and regeneration of raw material from polyurethaneInfo
- Publication number
- JPS5653128A JPS5653128A JP5416780A JP5416780A JPS5653128A JP S5653128 A JPS5653128 A JP S5653128A JP 5416780 A JP5416780 A JP 5416780A JP 5416780 A JP5416780 A JP 5416780A JP S5653128 A JPS5653128 A JP S5653128A
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane
- raw material
- regeneration
- recovery
- effect
- 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
- 229920002635 polyurethane Polymers 0.000 title abstract 6
- 239000004814 polyurethane Substances 0.000 title abstract 6
- 239000002994 raw material Substances 0.000 title abstract 3
- 238000011084 recovery Methods 0.000 title 1
- 230000008929 regeneration Effects 0.000 title 1
- 238000011069 regeneration method Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 239000002699 waste material Substances 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 238000005915 ammonolysis reaction Methods 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 150000002484 inorganic compounds Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To recover and regenerate the raw material of polyurethane from waste polyurethane, economically, safely, at a low cost, by the ammnolysis of the polyurethane with a compound which generates ammonia by heating.
CONSTITUTION: Waste polyurethane is mixed with an inorganic or organic compound which generates ammonia gas by the thermal decomposition at 50W200°C [e.g. ammonium (bi)carbonate, urea, etc.] and if necessary, a solvent (e.g. water or methanol). The mixture is heated at 50W200°C to effect the ammonolysis of said polyurethane.
EFFECT: The recovered raw material can be reused without particular purification.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5416780A JPS5653128A (en) | 1980-04-25 | 1980-04-25 | Recovery and regeneration of raw material from polyurethane |
| DE3037545A DE3037545C2 (en) | 1979-10-05 | 1980-10-03 | Process for the recovery of raw materials from polyurethane |
| GB8032085A GB2062660B (en) | 1979-10-04 | 1980-10-06 | Method of recovering and reproducing raw materials from polyurethanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5416780A JPS5653128A (en) | 1980-04-25 | 1980-04-25 | Recovery and regeneration of raw material from polyurethane |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54128012 Division | 1979-10-04 | 1979-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5653128A true JPS5653128A (en) | 1981-05-12 |
Family
ID=12962981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5416780A Pending JPS5653128A (en) | 1979-10-04 | 1980-04-25 | Recovery and regeneration of raw material from polyurethane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5653128A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU506968B1 (en) | 2024-04-19 | 2025-10-20 | Kemijski Inst | Process for recovering raw materials from polyurethane waste |
-
1980
- 1980-04-25 JP JP5416780A patent/JPS5653128A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU506968B1 (en) | 2024-04-19 | 2025-10-20 | Kemijski Inst | Process for recovering raw materials from polyurethane waste |
| WO2025219434A1 (en) | 2024-04-19 | 2025-10-23 | Kemijski Institut | Process for recovering raw materials from polyurethane waste |
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