Method for reducing content of selenium-consuming substances in manganese sulfate electrolyte and manganese sulfate electrolyte

By employing multiple purification methods such as chemical oxidation, coagulation and adsorption, the content of selenium-consuming substances in manganese sulfate electrolyte is reduced, thus solving the problem of high selenium-consuming substances in manganese sulfate electrolyte and improving the efficiency and product quality of electrolytic manganese production.

CN122426784APending Publication Date: 2026-07-21NINGXIA TIANYUAN MANGANESE MATERIALS RES INST (CO LTD)
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGXIA TIANYUAN MANGANESE MATERIALS RES INST (CO LTD)
Filing Date
2026-04-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The manganese sulfate electrolyte prepared in the existing technology has a high content of selenium-consuming substances, which affects the stability of the electrolysis process and the quality of the product.

Method used

Multiple purification methods, including chemical oxidation, coagulation and flocculation, adsorption and air oxidation, are employed. A strong oxidizing environment is created by using a purification agent prepared with sulfuric acid and hydrogen peroxide. Polyaluminum sulfate is used to promote flocculation and sedimentation, and diatomaceous earth is used to enhance adsorption capacity. Finally, a manganese sulfate electrolyte with low impurity content is obtained by pressure filtration.

Benefits of technology

It significantly reduced the selenium-consuming substances in the manganese sulfate electrolyte, improved the current efficiency of electrolytic manganese production, reduced the use of selenium additives, lowered production costs, and improved product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122426784A_ABST
    Figure CN122426784A_ABST
Patent Text Reader

Abstract

The present application belongs to the technical field of manganese ore hydrometallurgy, and particularly relates to a method for reducing the content of selenium-consuming substances in manganese sulfate electrolyte, which comprises the following steps: preparing a manganese sulfate neutral solution, and preparing a chemical oxidation purifying agent, wherein the chemical oxidation purifying agent is prepared from sulfuric acid, hydrogen peroxide and water according to a mass ratio of 1:(1-2):(1-3); adding the chemical oxidation purifying agent to the manganese sulfate neutral solution under stirring, and stirring for a first preset time under first preset conditions to perform an oxidation purification reaction; adding a polyaluminum sulfate aqueous solution to the solution after the oxidation purification, and stirring for a second preset time under second preset conditions to perform coagulation and flocculation treatment until flocculation suspended matter is formed in the liquid; adding diatomite solid to the solution after the coagulation and flocculation treatment to perform adsorption purification treatment; and introducing air into the solution after the adsorption purification treatment to perform further oxidation purification, and then standing and pressure filtering to obtain qualified manganese sulfate electrolyte.
Need to check novelty before this filing date? Find Prior Art