A method for precisely regulating pH by adding sodium carbonate in a tungsten tailings flotation process

By establishing a calibration fitting curve of sodium carbonate mass-volume percentage concentration and OH- concentration, and combining it with Python program calculations, efficient and precise control of pulp pH value during tungsten tailings flotation was achieved, solving the problems of slow adjustment process and low accuracy in existing technologies.

CN120733889BActive Publication Date: 2025-11-07JIANGXI UNIV OF SCI & TECH +1
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Patent Information

Application Number
CN202511264797.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2025-11-07
Estimated Expiration
2045-09-05

AI Technical Summary

Technical Problem

In the flotation process of tungsten tailings, conventional pH control methods have problems such as slow adjustment process, delayed results, and low accuracy, and cannot accurately control the pH value of the pulp.

Method used

By establishing a calibration fitting curve of sodium carbonate mass-volume percentage concentration and OH- concentration, and combining it with Python program calculations, the amount of sodium carbonate and aqueous solution used can be accurately calculated, thereby achieving efficient and precise control of the slurry pH value.

Benefits of technology

It significantly improves the accuracy and efficiency of pH adjustment, solves the problems of lag and inaccuracy of conventional control methods, and achieves efficient and precise control of slurry pH.

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Abstract

The present application belongs to the technical field of pH regulation for flotation of wolframite and scheelite from tungsten tailings, and particularly relates to a method for accurate pH regulation by adding sodium carbonate in the process of flotation of wolframite and scheelite from tungsten tailings, which is suitable for accurate pH regulation of the pulp when wolframite and scheelite are recovered by flotation from tungsten tailings. The method establishes a calibration fitting curve and a fitting curve formula of the mass-volume percentage concentration of sodium carbonate in the pulp and the concentration of hydroxyl ions, accurately calculates the amount of sodium carbonate and the amount of its aqueous solution according to the mass of the actual tungsten tailings and the concentration of the pulp and other parameters, and combines the target pH value for efficient and accurate regulation of the pH value of the pulp, solving the problems of slow adjustment process, late results, and low accuracy of conventional regulation methods, significantly improving the accuracy and efficiency of pH regulation, and reducing the consumption of reagents and the risk of equipment corrosion.
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