Performance analysis of the beneficiation process of bauxite from the Juruti Mine. Industrial sampling and performance evaluation

Sampling campaigns were conducted at the industrial bauxite wash circuit of Juruti Bauxite Mine in Pará, Brazil. The beneficiation consisted crushing, scrubber washing, wet screening, hydrocyclone classification, and fltration. Considering laboratory processing samples statistical analyses historical operation databases, mass balances obtained. Integrated operating parameters enabled calculation performance indices, which constitute basis for identification hierarchy bottlenecks terms washability efficiency; that is, removal fraction below 0.037 mm. Typically, focus ore concentration Amazon region is mm concentrate streams via disaggregation mud washing. Consolidated indicated consistent values based on size sample particles percentage solids, as well obtained from integrated information systems plant; this consistency stability representativeness process conditions during sampling campaigns. base case plant operation, indices allowed quantification efficiency each step was calculated, a result.