METHOD AND APPARATUS FOR REMOVING IRON FROM HYDROMETALLURGICAL IRON-CONTAINING SOLUTION

• Main Authors: ZHAO, Pengfei, LU, Yeda, LI, Bin, QIN, Mingxiao, LI, Shaolong, FU, Jianguo, YIN, Shuyan
• Format: Patent
• Language: Chinese; English; French
• Published: 16.05.2019
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A method and apparatus for removing iron from a hydrometallurgical iron-containing solution. The method comprises the following steps: adding a hydrometallurgical iron-containing solution to a reactor by means of a first homogenizing distributing device (11); controlling the concentration of ferric iron in the reactor to be less than 1 g/L, and controlling the pH of the solution in the reactor to be equal to 2.5-4, the temperature to be 65-100°C, and the reaction time to be 1-3 hours; and performing solid-liquid separation on the solution after reaction, and removing iron from the hydrometallurgical iron-containing solution in the form of goethite. La présente invention concerne un procédé et un appareil permettant d'éliminer le fer d'une solution hydrométallurgique contenant du fer. Le procédé comprend les étapes suivantes: l'ajout d'une solution hydrométallurgique contenant du fer à un réacteur au moyen d'un premier dispositif de distribution/homogénéisation (11); la régulation de la concentration en fer fe