Method for recycling materials containing plastic, rubber or lacquer

US5505008A · kind A · utility

Assignee

• Leybold Durferrit GmbH · DE

Inventors

• Franz Hugo · Aschaffenburg, DE
• Helmut Teuschel · Offenbach, DE
• Erwin Wanetzky · Großkrotzenburg, DE

Key dates

• Filing date: Jun 23, 1994
• Grant date: Apr 9, 1996
• Expiry date: Jun 23, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/143
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Material containing organic substances including rubber, plastic, and lacquer is heated in a vacuum process chamber at subatmospheric pressure in a nonreactive atmosphere to a temperature of at least 200.degree. C., the gases and vapors thus formed are condensed in a condensate separator, and the condensate is captured and made available for reuse or disposal. The embrittled residues formed from these substances are crushed and the crushed residues are collected and made available for recycling or disposal. If metals are contained in the material, the residues are loosened, collected, and crushed. The process and the apparatus are suitable for recycling insulted wire, metal bonded to rubber, plastic containers decorated with pigments, motor vehicle steering wheels, workpiece hangers and tools coated with lacquer, poorly lacquered metal parts, tires and rubber pads of track-laying vehicles, and seals.