DECARBURISATION OF ALUMINIUM PRODUCED BY CARBOTHERMY

摘要

FIELD: metallurgy.SUBSTANCE: invention relates to extraction of decarburised aluminium produced by thermometry. Proposed method comprises production of fused melt containing AlCand aluminium and cooling of fused melt. Sufficient amount of finely distributed gas is added to fused allow at approx. 700°C to 900°C to separate aluminium from release of AlCby flotation of released AlC. This produces two phases. Note here that released AlCmakes a top layer while bottom layer is composed by carburised aluminium. Note also that addition of sufficient amount of finely distributed gas comprises compaction of obtained solid materials on fused melt surface into fused alloy and extraction of carburised aluminium produced by thermometry from released AlC. Then, aluminium is extracted from release AlCby decantation.EFFECT: higher yield.9 cl, 1 dwg, 1 tbl, 5 ex