The process of recovery of alumina powder of the electrostatic filter of the Bayer process for application in thin layer chromatography and related products

摘要

"The process of recovery of alumina powder of the electrostatic filter of the Bayer process for application in thin layer chromatography and related products.The present invention is characterized by the process of recovering alumina from the powder of the electrostatic filter of the Bayer process, and their use in thin layer chromatography (plate).In the manufacture of aluminum, one of the steps is to obtain the alumina (Al ~ 2 ~ 0 ~ 3 ~); during this process is obtained as reject, in an electrostatic filter.A very fine black powder containing a high percentage of alumina and in great quantity, which does not meet the industrial specifications and also pollutes the environment.This black powder is taken to the landfill industrial generating a serious pollution problem.Through the thermal analysis, more specifically to the technique of thermogravimetry, it was possible to obtain alumina of high quality and efficiency for application in thin layer chromatography.