Method of purifying yellow phosphorus
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United States of America Patent
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Dec 19, 2017
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N/A
app pub date -
Dec 3, 2015
filing date -
Dec 24, 2014
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Abstract
The present invention relates to a method of purifying yellow phosphorus, and more particularly, to a method of effectively removing impurities from yellow phosphorus used as raw materials of a phosphoric acid to increase purity of the phosphoric acid, the method including: removing impurities from the phosphoric acid by adding an oxidizing agent to the yellow phosphorus, followed by stirring; and adding a solution including an additive having a specific functional group in a chemical structure to the yellow phosphorus from which the impurities are removed, followed by stirring.
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