Influence of pulp alkalinity on apatite flotation
Abstract
This work was to clarify the necessity of controlling pulp alkalinity at the Khibinogorsk processing plant. The main focus of the work was on studying the properties of the minerals and the flotation of apatite at various pulp alkalinity levels. Experiments showed that the dissolution process of apatite in the pulp proceeds very slowly and does not reach equilibrium within 60 minutes (for the coarse fraction—20 mesh). The article presents potentiometric measurements and test results. During apatite flotation, the alkalinity of the pulp significantly affects the the results of the process. High alkalinity reduces the rate of concentrate recovery, and for a given flotation duration, the recovery of apatite decreases. Increasing the consumption of oleic acid accelerates the process.
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References
- M.T. Arkhiptsev, I.N. Isaev, G.A. Osolodkov. Materials for the report on industrial practice at the Khibinogorsk enrichment plant. 1933. (in Russian)
- P.D. Trusov. Mining and enrichment Gornoobogatitelnoe delo, 1932, iss. 4-5. (in Russian)