Recycling apparatus for obtaining oil from plastic waste
US5947721A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A recycling apparatus for obtaining oil from waste plastic by thermal decomposition having a tank proper with a hopper to charge the waste plastic and multiple heating pipes disposed above one another which communicate with one another in the tank proper. The upper heating pipe is connected to a hot-air generator and the lower heating pipe to a flue duct leading to the outside atmosphere, thus dividing the tank proper into an upper thermal decomposition zone and a lower melting zone. As such, the recycling apparatus accomplishes the melting and thermal decomposition of the waste plastic in one tank. The recycling apparatus is simple and compact, provides substantial cost savings and ease of maintenance, and increases productivity and economy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.