TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The solvolysis step takes place for 2-20 hours. The inorganic components are continuously or batch-wise separated by at least a discharge device, and subsequently washed with recycled alkali solution and/or water. The metals are recycled from the inorganic components by electroraffination, galvanic or chemical procedures. The process further comprises separating the organic components from the steam using a condensation device and feeding the steam containing low portion of organic component again into the process. After the solvolysis, a partial hydrogenation of the organic components with low steam pressure takes place preferably using Raney nickel as a catalyst, where the polarity of the organic component is lowered or increased with the steam pressure. After solvolysis, hydrogenation of the organic components in liquid form takes place using Raney nickel for separating heteroatoms and/or followed by hydrocracking. Preferred Components: The alkali solution is an aqueous solution and/or hydrate melt containing 40-70 wt.% of an alkali carbonate or alkali-hydroxide, preferably potassium carbonate. The alkali solution is an organic solvent, which is aliphatic and/or aromatic hydrocarbon. The alkali solution has a thickness of 1.3-1.7 g/cm3.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Method: The solvolysis step takes place in a stirred tank with mechanical stirrer or in a circulation reactor. The alkali solution is produced in the reactor or stirred tank, and a quasi-continuous stirring of waste takes place preferably by screw conveyor or piston press, in a semi-batch mode. The stirring of the waste in batch processing takes place through opening the reactor, adding the waste and subsequently adding the alkali solution. In the process, heat is supplied during solvolysis by at least a heat exchanger or using a heat carrier, which is used in the process, preferably steam or thermal oil. Preferred Components: The rectification column is a packing column. In the process, the rectification column is connected with a pressure regulator using which the pressure in the system is kept constant. The separation of the organic components takes place by vacuum distillation. EXAMPLE - None given.