Coarse particlesCoarse particle are difficult to float as they are readily detached from air bubbles due to the turbulence in the pulp phase of a flotationFlotation cell. Many investigators showed indeed that coarse particleCoarse particle recoveryRecovery can be improved by minimizing the turbulence. In the present work, coarse particle flotationCoarse Particle Flotation (CPF) was improved using a jig flotation cellJig flotation cell, in which bubble-particle aggregates move upward during the pulsion cycle in which bubble-particle aggregates move by acceleration with no drag force and hence low probability of detachment. Furthermore, the jig motion forms a froth phase, in which less hydrophobic particles drop off to obtain high-gradeGrade concentratesConcentrate. Also, one can feed a copper oreCopper ore without desliming. Experimental results obtained in the present work show that jig flotationFlotation improves both the coarse and fine particle flotationFlotation. Some of the tests were conducted using Super CollectorsSuper collector that can increase contact angles above 150° to minimize detachment to increase the upper particle size limit.

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Coarse Particle Recovery by Jig Flotation

  • Mohit Gupta,
  • Jack Leland,
  • Ashwin Srinivasan,
  • Roe-Hoan Yoon

摘要

Coarse particlesCoarse particle are difficult to float as they are readily detached from air bubbles due to the turbulence in the pulp phase of a flotationFlotation cell. Many investigators showed indeed that coarse particleCoarse particle recoveryRecovery can be improved by minimizing the turbulence. In the present work, coarse particle flotationCoarse Particle Flotation (CPF) was improved using a jig flotation cellJig flotation cell, in which bubble-particle aggregates move upward during the pulsion cycle in which bubble-particle aggregates move by acceleration with no drag force and hence low probability of detachment. Furthermore, the jig motion forms a froth phase, in which less hydrophobic particles drop off to obtain high-gradeGrade concentratesConcentrate. Also, one can feed a copper oreCopper ore without desliming. Experimental results obtained in the present work show that jig flotationFlotation improves both the coarse and fine particle flotationFlotation. Some of the tests were conducted using Super CollectorsSuper collector that can increase contact angles above 150° to minimize detachment to increase the upper particle size limit.