BCI Chemical Research & Analysis – Potassium & Sodium
Chemical market survey commissioned to price the by products of brine treatment, covering South African and global price levels for five salts and the sector outlook at the time.
Market prices are set out for sodium sulphate, sodium chloride, sodium nitrate, potassium nitrate and potassium chloride, in South Africa and abroad, as at early 2011, with Chinese supplier quotes alongside United States averages. The work was done to test whether salts recovered from mine water brine could be sold at a worthwhile price.
R1500,00
Description
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Fine Coal Dense-medium Cyclone Tests Conducted at Leeuwpan Coal Mine
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...
R1500,00
200720 pages
Dense medium cyclones on the fine coal fraction lifted product yield well above the spiral circuit they were compared against and gave closer control of product quality. Cut point density control proved the hardest part of running the plant, medium properties being critical. Magnetic separator capacity had to match the duty, and a basement was needed to contain and recover medium spillage.
The impact of cattle grazing on rehabilitated land
Two annual surveys of species composition, biomass and soil sampling inside and outside fenced plots on rehabilitated pasture at an opencast colliery near Ogies, with benchmark sites for comparison.
What this report foundGrazing pressure on the rehabilitated block ran at roughly three times the estimated carrying capacity.
R1500,00
Grazing pressure on the rehabilitated block ran at roughly three times the estimated carrying capacity. The sward was dominated by low quality grasses with a high proportion of bare ground and a raised erosion risk. Fenced exclosures over one year changed the abundance of a few species, but the vegetation showed no clear direction of recovery.