Abstract: A method is provided for the continuous processing of coarse-grained waste rubber into a secondary rubber raw material, in which coarse-grained waste rubber having a particle size of 0.5 to 15 mm, preferably approx. 4 to 6 mm, in a layer of a thickness not exceeding the largest dimension of a single grain is exposed to a thermoshock without the access of oxygen at a temperature of 200.degree. to 900.degree.C., preferably 600.degree. to 800.degree. C., for a time of 5 to 200 seconds, preferably about 30 to 60 seconds, depending on the size of the particles and the desired structure of the product.

Abstract: A method of separating rubber from metal, which includes obtaining a metaontaining rubber body, impeding the access of oxygen to the rubber, exposing the body to high-frequency electromagnetic field to cause the metal to glow and the border layer of the rubber on the metal-rubber contact to be thermally degraded and carbonized, and magnetically separating the rubber from the metal, and apparatus for carrying out the method.

Abstract: A method of separating rubber from metal which includes covering a metal-taining rubber body with an inert powdered agent, exposing the body to high-frequency electromagnetic field to cause the metal to glow and the border layer of the rubber on the metal-rubber contact to be thermally degraded and carbonized, removing the powdered agent and magnetically separating the rubber from the metal, and apparatus for carrying out the method.