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Abstract In response to the challenge of recovering particles smaller than -0.45 microns in Mineral Processing, GAUSTEC® has significantly enhanced the Wet High Intensity Magnetic Separation (WHIMS) technology. By Extending the Height of the Magnetic Grooved Plate Matrix, a core component of Jones Magnetic Separator Technology, GAUSTEC® has raised the industry standards. For over fifty years, since the installation of the first Jones separator at VALE Cauê Mine in 1972, the standard matrix height has remained at 220 mm. The worldwide demand to reduce tailings prompted a team of researchers to look for new solutions to improve slimes recovery. After trying traditional methods and process variables it was decided to extend the matrices heights to increase the processing time inside the magnetic field. Evaluating four matrix heights, researchers found that doubling the standard height (2H) provided outstanding results. The 2H matrix recovered 2.5 times more mass from slimes compared to the standard 1H matrix height, in this study.

In response to the challenge of recovering particles smaller than -0.45 microns in Mineral Processing, GAUSTEC® has significantly enhanced the Wet High Intensity Magnetic Separation (WHIMS) technology. By Extending the Height of the Magnetic Grooved Plate Matrix, a core component of Jones Magnetic Separator Technology, GAUSTEC® has raised the industry standards. For over fifty years, since the installation of the first Jones separator at VALE Cauê Mine in 1972, the standard matrix height has remained at 220 mm. The worldwide demand to reduce tailings prompted a team of researchers to look for new solutions to improve slimes recovery. After trying traditional methods and process variables it was decided to extend the matrices heights to increase the processing time inside the magnetic field. Evaluating four matrix heights, researchers found that doubling the standard height (2H) provided outstanding results. The 2H matrix recovered 2.5 times more mass from slimes compared to the standard 1H matrix height, in this study [ABSTRACT FROM AUTHOR]

Tailings recovery has been a constant challenge for most engineers. Along more than five years, GAUSTEC joined major players in the mining Industry to scavenge Iron from tailings produced by flotation making use of WHIMS (Wet High Intensity Magnetic Separation). In the early 1980s, in USA, the US 4,192,738 patent was granted with promising results. Despite this, thirty years have passed with no significant application worldwide. One main reason is reported: the market missed a really high feed capacity WHIMS in order to avoid the huge number of the WHIMS that were available at that time (such projects would typically require more than 20 WHIMS to scavenge iron from tailings produced by flotation plants). Such a huge asset to scavenge low grade iron tailings would not payback. The Mega sized WHIMS launched by GAUSTEC in 2014, the GHX-1400, improved by the Super-WHIMS Technology (18.000 Gauss) and BigFlow Magnetic Matrixes (Gaps smaller than 1.5 mm), faced this challenge. Specially designed ancillary equipment described here also played a decisive role in the scene. [ABSTRACT FROM AUTHOR]

Abstract Tailings recovery has been a constant challenge for most engineers. Along more than five years, GAUSTEC joined major players in the mining Industry to scavenge Iron from tailings produced by flotation making use of WHIMS (Wet High Intensity Magnetic Separation). In the early 1980s, in USA, the US 4,192,738 patent was granted with promising results. Despite this, thirty years have passed with no significant application worldwide. One main reason is reported: the market missed a really high feed capacity WHIMS in order to avoid the huge number of the WHIMS that were available at that time (such projects would typically require more than 20 WHIMS to scavenge iron from tailings produced by flotation plants). Such a huge asset to scavenge low grade iron tailings would not payback. The Mega sized WHIMS launched by GAUSTEC in 2014, the GHX-1400, improved by the Super-WHIMS Technology (18.000 Gauss) and BigFlow Magnetic Matrixes (Gaps smaller than 1.5 mm), faced this challenge. Specially designed ancillary equipment described here also played a decisive role in the scene.