Clariant Highlights Advances in Flotation Chemicals

Specialty chemical producer Clariant announced recently that one of its representatives had presented a paper at the seventh International Flotation Conference held in Cape Town, South Africa in November, describing what it termed “revolutionary” HOSTAFLOT products for copper mining.

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Outotec’s Flotation Cell Replacement Calculator Provides Fast Results

Aging, underperforming flotation equipment can have a huge impact on a plant's metallurgical performance, energy efficiency, and ultimately, its profitability. This can cause challenges in meeting operational targets due to low concentrate output from cells, while equipment breakdowns have a negative impact on availability and high spare parts costs affect operational profitability. Older plants are typically equipped with a large number of cells with relatively small volumes, meaning that metallurgical performance is far from optimal. Furthermore, operations need flexibility over time due to the variation in head grades, and this could require changes in both the capacity and flotation duty of some cells.

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New Impact Crusher Delivers High Reduction Ratios with Low Energy Usage

A paper presented at the International Comminution and Classification Congress 2015 (ICCC 2015) held in San Luis Potosi, Mexico, in August, titled Breaking down comminution barriers – new dimensions of particle size reduction and liberation by VeRo Liberator, describes the technology employed by a new type of impact crusher that is claimed to offer dramatic improvements in particle size reduction ratios along with lower energy requirements. The paper, authored by Gregor Borg, O. Scharfe and A. Kamradt, calls attention to the well-known fact that “…the comminution of commodity particles such as mineral ores by crushing, grinding, and milling makes up the biggest single cost factor in mineral processing,” and goes on to explain that a German engineering company has invented and produced an innovative high-velocity impact crusher, the VeRo Liberator, featuring improved particle size reduction ratios and high levels of particle liberation together with low energy consumption and operational noise. It operates without using any water.

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Metso Mill Drive System Offers Alternative to GMDs in High-power Applications

Metso reported that it has been working in close collaboration with two technological partners over the past three years to develop a new mill drive solution for large SAG and ball mills, and after exhaustive design research followed by fabrication, installation and continuous full-scale testing, it is ready to introduce the new QdX4 mill drive system.

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