The DEC Flotation column is a high efficiency flotation device which handles slurry feeds spanning a wide range of particles sizes and will float up to 1.5mm particles with ease, at high efficiency. The DEC Flotation column combines low capital cost and high throughput design, a unique bubble generator for low power and water usage besides functioning as both a Rougher and a Scavenger in one compact unit.
The design is anti-choking and provides a simple restart after a power or plant outage. DEC Flotation column – the smart way to float coal, phosphate and iron ore, efficiently and economically.
There are hundreds of flotation circuits around the world which have been operating for many years. Operational Analysis of most of the older flotation circuits will show that the tailings contain economically recoverable amounts of the mineral being processed.
Most commercial grade iron ore bodies do not require beneficiation to produce a saleable product. Low grade iron ore bodies can be beneficiated using the DEC Flotation column and produce a saleable product at a low production cost per ton.
Recovery of fine coal – which is generally minus 4mm (1/8 inch) material – began in most industrialized countries only at the start of the 1950’s. The earlier processing methods resulted in enormous tonnages of coal tailing dumps and coal lagooned material available for economic re-treatment.
The era of cheap high grade rock phosphate in easily exploited reserves is over. Phosphate Rock Grades are decreasing worldwide as the richer deposits are mined out.
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An animated demonstration of how the DEC technology works (see here)
The DEC is the first system designed with the dual tanks (one over another) and only eight feet high for maximum recovery.
