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GJ de Korte

12 reports in the library

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GJ de Korte
2003
Pilot scale dense medium testing on fine coal at a Witbank colliery after the plant was moved from an earlier site, with sampling, efficiency and magnetite results for plant designers.
What this report foundThe fine coal dense medium pilot plant was rebuilt at South Witbank Coal Mine and run on fine coal, with tests covering single, double and three stage...
Coal Processing
Dense-medium Fine Coal Processing: Tests Conducted at South Witbank Coal Mine
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GJ de Korte
2016
Test work on a dry jig installed at a Balmoral site, covering coal sized below 50 mm and duff below 12 mm, for producers considering waterless beneficiation.
What this report foundA 30 tonne per hour pilot Allair dry jig upgraded run of mine coal to thermal coal specification, but could not effectively beneficiate finer duff.
Coal Processing
Dry Processing of Coal – Progress Report: Tests Conducted on the IMS / Slater Coal Marketing Allair Dry Jig
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GJ de Korte
2009
Coal Processing
Dry Screening of Coal
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GJ de Korte
2008
Screening trials at two South African collieries, one on a small test unit and one on a full scale installation, for plant staff handling fine, damp coal.
What this report foundFine coal was screened at small apertures while surface moisture stayed below about 5 per cent.
Coal Processing
Dry Screening Tests Conducted With a Bivi-tec Screen
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GJ de Korte
2003
Coal Processing
Evaluation of Kroosh Screening Technology
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GJ de Korte
2009
Pilot tests of a waterless de-stoning unit on raw coals from four South African collieries at a Pretoria research site, for plant metallurgists weighing dry beneficiation.
What this report foundA compound dry cleaning machine de-stoned low grade raw coal without using water, but separation efficiency was low, with high relative density cut points and...
Coal Processing
FGX Dry Processing Tests Conducted at Exxaro R&D
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GJ de Korte
2010
Coal Processing
FGX Dry Processing Tests Conducted at Exxaro’s Northern Block Complex
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GJ de Korte
2007
Pilot dense medium cyclone testing on fine coal inside a working spiral plant at a Mpumalanga opencast mine, ending in a full scale plant design.
What this report foundDense medium cyclones on the fine coal fraction lifted product yield well above the spiral circuit they were compared against and gave closer control of...
Coal Processing
Fine Coal Dense-medium Cyclone Tests Conducted at Leeuwpan Coal Mine
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GJ de Korte
2002
Assessment of the measurement and control equipment available to coal preparation plants, with recommendations for plant metallurgists on which instruments to add first.
What this report foundNo single method gives a continuous, real time report on how a coal preparation plant is performing.
Coal Processing
Real-time Plant Efficiency Measurement
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GJ de Korte
2003
Coal Processing
Simplified Flow Diagram of Fine Coal Dense Medium Plant
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GJ de Korte
2003
Trial of an imported dense medium separator installed in a fine coal pilot plant at a Witbank mine, for plant designers weighing alternatives to cyclones.
What this report foundThe separator handled fine coal and produced a 28 MJ/kg product, but its measured separation efficiency was lower than that of conventional dense medium...
Coal Processing
TRI-FLO™ Tests Conducted at South Witbank Coal Mine
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GJ de Korte
Coal Processing
X-ray Sorter Tests
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