Process for separating arsenic from acid solutions containing it.

摘要

The process for separating arsenic from acid solutions containing it along with other metals comprises contacting the acid acqueous solution with an organic solvent insoluble in water, having the general formula C6Rn(OH)mH6-(m+n), which extracts the arsenic, the arsenic being in turn stripped from the organic solvent by a countersolvent. Preferably, the organic exctractant is a mono- or di-alkylderivative of pyrocatechol or pyrogallic acid.