IRON OXIDE SINTERING PROCESS FOR SPRAY ROAST OXIDE WITH EXHAUST GAS RECIRCULATION

摘要

The invention relates to a process for sintering powdered iron oxides from hydrochloric acid regeneration plants by using the energy content of the iron oxide for the sintering process and the exhaust gases from the sintering plant for the regenerating process, which is distinguished by the fact that the powdered iron oxide leaving the reactor (4) of the hydrochloric acid regeneration plant is fed immediately to a sintering plant (12) after exiting and after optional pre-compacting, and the exhaust gases from the sintering plant (12) are optionally fed back again into the regenerating process.