METHOD FOR TREATING WASTE COMPRISING JOINED OR COMPOSITE MATERIAL OR RUBBER AND METAL

• Main Author: MURATA NORIO
• Format: Patent
• Language: English
• Published: 04.04.2000
• Edition: 7
• Subjects: CHEMISTRY; DISPOSAL OF SOLID WASTE; FERROUS OR NON-FERROUS ALLOYS; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; METALLURGY; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; RECLAMATION OF CONTAMINED SOIL SOIL; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To implement a simple, sabe and economical disposal and recycling of a joined material comprising rubber and metal which is difficult to be disposed of, with safe water and a small amount of heat energy by sealing the joined object and others together with water in a sealed high pressure container to be heated at a specified temperature. SOLUTION: A joined material 1 of rubber and metal is manufactured by a process in which a steel plate which has been washed with a solvent, dried, and coated with an adhesive primer after being subjected to sand blast treatment and an uncrosslinked natural rubber block are heated/pressed. The material 1 is put into water in a high pressure container 3 filled with water 2 and sealed, after being heater at a temperature exceeding 100 deg.C by a heater 5 in a high temperature tank 4, and cooled by removing the container 3. By heating the material 1 in high pressure high temperature water, a joined part can be broken by decreasing the strength of the part so that separation into recyclable rubber and metal is made possible. Accordingly, with safe water and a small amount of heat energy, simple, economical treatment is made possible.