METHOD FOR GENERATING CRYSTALLINE IRON ARSENATE FROM ARSENIC-CONTAINING SOLUTION

摘要

PROBLEM TO BE SOLVED: To provide a method which achieves easy and rapid generation of crystalline iron arsenate particles with a large particle size from an arsenic-containing solution.;SOLUTION: The method for generating crystalline iron arsenate from an arsenic-containing solution comprises adding divalent iron to the solution containing pentavalent arsenic and trivalent iron, adjusting the pH of the solution to ≤1.0, and adding an oxidizing agent to thereby generate crystalline iron arsenate, wherein when the number of mols of pentavalent arsenic, that of trivalent iron and that of divalent iron in the arsenic-containing solution are considered to be A mols, B mols and C mols, respectively, the relationships of B/A1.0, C0 and B0 are satisfied.;COPYRIGHT: (C)2011,JPO&INPIT