Study of the Intensification of the Process of Filtration of Leaching Solutions During the Processing of Copper Production Waste

Abstract

The article presents methods of filtration, settling, and investigates the separation of an insoluble residue, in particular, lead and precious metals from pulp obtained as a result of leaching fine converter dust of the Almalyk MMC JSC copper smelter with sulfuric acid of various concentrations. For each method, the optimal settling and filtration rate is established depending on time and temperature. The filterability of the pulp (leaching solution) with sediments, which is formed during the processing of dust by the hydrometallurgical method, has been studied. The technological scheme of the chain of devices for the settling and filtering solutions for leaching fine converter dust has been developed. It is recommended for use in the production of the developed automated thickener-settler for settling and thickening the solution before filtration, which helps to intensify the filtration process, since the size of the converter dust is very fine, therefore, during the filtration process, it clogs the fabric filter.