System for removing iron in iron-containing zinc sulfate solution

Abstract

The invention discloses a system for removing iron in an iron-containing zinc sulfate solution. The system comprises a vertical reaction kettle and a horizontal reaction kettle, wherein the vertical reaction kettle comprises a vertical reaction kettle body, an iron-containing zinc sulfate solution feed port, a first steam inlet, a first oxygen inlet and a first iron-removed slurry outlet, and the horizontal reaction kettle comprises a horizontal reaction kettle body, a first iron-removed slurry feed port, a second steam inlet and a second oxygen inlet. According to the system for removing iron in the iron-containing zinc sulfate solution, due to the combination of the vertical reaction kettle and the horizontal reaction kettle, the problem of production halts caused by scaling in the kettle in deironing can be effectively solved, continuous and stable production can be guaranteed, so that the deironing efficiency and use ratio of the equipment are remarkably improved.

Description

technical field [0001] The invention belongs to the fields of chemical industry and metallurgy, in particular, the invention relates to a system for removing iron from an iron-containing zinc sulfate solution. Background technique [0002] Iron usually enters the solution in the form of impurities in the zinc hydrometallurgy process. In order to obtain a purer zinc product, the iron precipitation in the solution will be removed before the product recovery process during the smelting process. The commonly used methods are neutralization method, goethite method, goethite method and iron oxide method, wherein the neutralization method, goethite method, goethite method iron removal slag iron content is low, iron slag is usually stored in tailings ponds, iron oxide method The obtained product can be used as a raw material for cement and ironmaking or to produce iron red products due to its high iron content, which can not only solve the problem of environmental pollution, but als...

AI Technical Summary

Problems solved by technology

For this reason, an object of the present invention is to propose a kind of system that iron-containing zinc sulfate solution is carried out iron removal, and this system can effectively solve the production interruption caused by problems such as fouling, guarantee the continuous and stable operation of production, and significantly improve the equipment At the same time, it can not only effectively solve the problems of iron slag tailings pond occupation and environmental pollution, but also effectively improve the recovery rate of metal zinc and increase the economic benefits of enterprises

Images