Procedure for fluidizing Aqueous suspensions of red muds in the preparation of alumina by the Bayer process.

摘要

IMPROVED PROCESS FOR AQUEOUS SUSPENSIONS fluidize flocculated DE BARROS RED IN THE MANUFACTURE OF BAUXITE BY BAYER PROCESS comprising: .DISOLVER BAUXITE BY SOSA,. And decant and wash RED BARROS TRAINED to separate alumina VESSELS IN SUCCESSIVE TIME UP TO RECYCLE WATER POWER WASH. And finally ELIMINATE RED BARROS TREATED WELL, AND IN WHICH ARE INTRODUCED IN THE SUSPENSION OF SUCCESSIVE one of the containers, an agent flocculant (F) consisting of a polyacrylamide TOP TEN MILLION TO MOLECULAR WEIGHT; CHARACTERIZED IN THAT SIMULTANEOUSLY TO THIS AGENT flocculant (F) is added to the suspension and in the same container, a dispersing agent (D) consisting of an acrylic acid polymer Anionic MOLECULAR WEIGHT LESS THAN fifty thousand.