IT1182266B - Heterogeneous waste plastics material is recovered - Google Patents
Heterogeneous waste plastics material is recoveredInfo
- Publication number
- IT1182266B IT1182266B IT67915/84A IT6791584A IT1182266B IT 1182266 B IT1182266 B IT 1182266B IT 67915/84 A IT67915/84 A IT 67915/84A IT 6791584 A IT6791584 A IT 6791584A IT 1182266 B IT1182266 B IT 1182266B
- Authority
- IT
- Italy
- Prior art keywords
- mass
- waste
- plastics material
- heating
- temps
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title abstract 5
- 239000000463 material Substances 0.000 title abstract 4
- 229920003023 plastic Polymers 0.000 title abstract 4
- 239000004033 plastic Substances 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 2
- 239000010812 mixed waste Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Process for the recovery of heterogeneous waste plastics material comprises (a) triturating the plastics waste material; (b) then cold mixing the waste materials; (c) the mixed wastes are subjected to a first stage heating within a first range of temps., to obtain a mass in an initial state of plastification; and (d) subjecting this mass to a second heating stage within a second range of temps., generally different from the first range of temps., until there is obtained a homogeneous melted mass of recovered plastics material. Additionally the process may comprise (e) continuous mixing of the waste during the first heating stage; and (f) continuous mixing of the mass during the second heating stage. The first and second heating stages have no rapid pressure or temp. transitions. All materials are subject to uniform mechanical stresses. Apparatus is also claimed.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67915/84A IT1182266B (en) | 1984-09-13 | 1984-09-13 | Heterogeneous waste plastics material is recovered |
EP19840830279 EP0140846B1 (en) | 1983-10-17 | 1984-10-16 | Process for recovery of heterogeneous waste plastic materials, and apparatus usable in carrying out the same |
AT84830279T ATE38796T1 (en) | 1983-10-17 | 1984-10-16 | PROCESS FOR RECOVERING HETEROGENOUS PLASTIC WASTE AND DEVICE FOR EXECUTING THE PROCESS. |
DE8484830279T DE3475283D1 (en) | 1983-10-17 | 1984-10-16 | Process for recovery of heterogeneous waste plastic materials, and apparatus usable in carrying out the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67915/84A IT1182266B (en) | 1984-09-13 | 1984-09-13 | Heterogeneous waste plastics material is recovered |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8467915A0 IT8467915A0 (en) | 1984-09-13 |
IT1182266B true IT1182266B (en) | 1987-10-05 |
Family
ID=11306337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67915/84A IT1182266B (en) | 1983-10-17 | 1984-09-13 | Heterogeneous waste plastics material is recovered |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1182266B (en) |
-
1984
- 1984-09-13 IT IT67915/84A patent/IT1182266B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8467915A0 (en) | 1984-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950929 |