CPC C01F 11/18 (2013.01) [B01D 9/0022 (2013.01); B01D 9/0059 (2013.01); B01D 21/262 (2013.01); B01D 36/02 (2013.01); B01D 36/045 (2013.01); C01C 1/244 (2013.01); B01D 2009/0086 (2013.01); C01P 2006/80 (2013.01)] | 19 Claims |
1. A method for isolating metals from chemical processing comprising:
forming a mixture comprising chemical intermediates, wherein the
chemical intermediates comprise at least one of calcium, nitrates, carbonates, sulfates and metal impurities wherein the mixture results from chemical processing, and wherein the mixture has a pH value;
responsive to forming the mixture, combining the mixture and a first reagent to change the pH of the mixture, wherein the first reagent is added until the pH of the mixture reaches a first predetermined pH value to form a first precipitate, wherein the first precipitate comprises at least one of a metal and a rare earth element; and
responsive to forming a precipitate, removing the precipitate from the mixture via a filter to form a first filtrate,
wherein the process to form the first precipitate is performed at a pH of 4, and wherein the first precipitate comprises at least one of iron, aluminum, uranium, scandium, or thorium.
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