Patent ID: 8435323
Filing Date: 2013-05-07
Classification: C22B,F27B,Y02P

Abstract:
1. A process for batchwise working-up of recycling material containing valuable metals, but having a content of organic constituents so high that the recycling material is not suitable for use as smelting materials in conventional metal smelting processes, comprising: continuously charging the recycling material in an adjustable stream comprising size fractions that are suitable for continuous charging to a tiltable reactor that is rotatable along its own longitudinal axis, that has a common opening for charging and emptying, and that is heated to a temperature sufficient to expel organic constituents by pyrolysis and/or combustion during said continuous charging, wherein said continuous charging occurs through a charging lance extending through the common opening into the reactor when the reactor is in operation and in an inclined position; measuring process variables, and controlling or adjusting the adjustable stream during the continuous charging based upon said measuring, thereby controlling the flow and composition of the combustible gas and the process heat release; and withdrawing from the reactor a product that is substantially free of organic substances and is suitable for addition to a conventional metal smelting process.