Treatment of antimony bearing residues for production of potassium antimony tartrate
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United States of America Patent
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Feb 16, 2021
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Jul 13, 2017
app pub date -
Jan 12, 2017
filing date -
Jan 12, 2016
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Abstract
A method for production of potassium antimony tartrate by utilizing one or more residues bearing antimony includes the step of leaching of the one or more residues bearing antimony for a first pre-determined time interval in each of one or more jacketed reactors. In addition, the method includes filtering obtained slurry from a leached solution of the one or more residues products bearing antimony to obtain an aqueous solution and a solid residue. The method also includes crystallizing the obtained aqueous solution to form one or more crystals of the potassium antimony tartrate in a jacketed crystallizer. The antimony contained in the one or more residues is in an oxidic form and the oxidic form of the antimony is more than 20%. The solid residue is a leached cake.
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