Procedure for the purification of Natural and submicronizacion Powders containing high proportion of Associated Minerals and Process for Separation and Recovery of the Chemical components of these Minerals

摘要

Procedures to Purify and submicronizar natural Talc containing a high proportion of Associated Minerals and subsequent Separation and Recovery of the Chemical components of these Minerals.The Method comprises: a) contacting the Talc ore with acid Medium at a temperature of at least 25, (b) Shake the suspension obtained from the previous stage for at least 30 minutes and c) Cool until Decanting and Filtering. Where the proportion of Associated minerals in the starting Powder is up to 40% of the total weight of the Mineral Powder.The Associated Minerals are recovered using procedures that include stages of alkalinization of supernatants and precipitation of different by-products