Estudo do aproveitamento de resíduos da Mogás para produção de Cal

Abstract

In this work, we studied the use of lime residues from Mogás, a Mozambican company dedicated to the production of industrial and medical gases, located in Maputo province, Maputo city. For this purpose, the purification of the residue that consisted of its solubilization due to its physical state in order to make it fluid and promote its breakdown, then the mass was passed through a mesh series sieve in order to eliminate the impurities that were retained in the sieves. The mass passing through the sieves was heated so that the evaporation of water in order to obtain a solid and dry mass. through the tests that were done at a mass ratio of residue and water, 20/500, 20/800, 20/1000 (w/v) in time periods corresponding to 6, 24 and 48 hours, if determined the optimal time conditions and amount of water for its purification, being that these were 1000mL for a time of 24 hours. under optimal conditions a recovery of 77.4% was obtained. Once the optimization was completed, we proceeded with the laboratory analyzes that consisted of pH testing, FT-IR, XRF, and analysis of solubility in different substances (TRADUÇÃO NOSSA).