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A process for the purification of the obtained by wet digestion by means of extraction solution phosphoric acid
A process for the purification of the obtained by wet digestion by means of extraction solution phosphoric acid
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机译:通过萃取液磷酸湿消化纯化所得产物的方法
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摘要
Wet process phosphoric acid may be purified by solvent extraction to produce a product of greater purity and concentration than has hitherto been attainable by employing an acyclic hexanone, preferably methyl isobutyl ketone as the solvent. Preferably the extraction of the acid into the ketone and the release into water are carried out in 2 actual or theoretical counter - current stages. Alternatively the release may be carried out into an aqueous solution of a base.
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