RESEARCHING ON THE USE OF ALTERNATIVE REDUCING AGENTS IN THE RECYCLING OF WASTE CONTAINING OXIDIZED COPPER COMPOUNDS

Abstract. This study investigated the potential of using waste tire scrap as a reducing agent in copper slag recycling. The role of carbon, hydrogen, and sulfur, which are formed as a result of thermal decomposition of rubber materials at high temperatures, in the reduction of magnetite and copper oxides was analyzed. The experiments showed that the bulk oxidation rate of rubber scrap is higher than that of brown coal. It was also shown that the use of waste tire scrap reduces the amount of magnetite in the slag and accelerates the transition of copper to the matte phase.