BCI Chemical Research & Analysis – Eutectic Freeze Crystallisation
Desktop market and technology review of brine from coal related waste, covering global and South African demand, plant energy use and laboratory crystalliser results, for water treatment planners.
Eutectic freeze crystallisation was compared with evaporative crystallisation as a route for treating hypersaline mine brine. Optimised commercial evaporative crystallisers use 40 to 50 kWh per cubic metre of feed. Laboratory work measured a eutectic temperature of -21.1 degrees Celsius for pure sodium chloride solution, and found that a large difference between coolant and solution caused scaling on the heat exchanger wall.
R1500,00
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