Crusher Plant for Phosphate Production

Phosphate rock from the deposit is first sent to beneficiation production plant to separate sand and clay and to remove impurities. Crusher plant for phosphate production may involve jaw crusher, impact crusher, cone crusher, VSI crusher etc. according to different production requirements.

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World Phosphate Production

World phosphate rock production capacity was projected to increase from 220 million tons per year in 2012 to 256 million tons per year, with more than 50% of the growth in North Africa. The largest expansion project was in progress in Morocco, where phosphate rock production capacity was being increased from 30 million tons per year to 50 million tons per year by 2018.

There are also many phosphate rock mines and expansions were under development in Africa, such as in Angola, Congo, Egypt, Ethiopia, Guinea-Bissau, Namibia, Mali, Mauritania, Mozambique, Senegal, South Africa, Togo, Tunisia, Uganda, and Zambia. Outside of Africa, phosphate rock mines were in various stages of development in Australia, Brazil, Canada, China, Kazakhstan, and New Zealand.

Phosphate Processing Operation

Phosphate rock from the mines is first sent to beneficiation units to separate sand and clay and to remove impurities. Steps used in beneficiation depend on the type of rock. A typical beneficiation unit for separating phosphate rock mined in Florida begins with wet screening to separate pebble rock that is larger than 1.43 mm or 14 mesh, and smaller than 6.35 mm from the balance of the rock. The pebble rock is shipped as pebble product.

The material that is larger than 0.85 mm, or 20 mesh, and smaller than 14 mesh is separated using hydrocyclones and finer mesh screens and is added to the pebble product. The fraction smaller than 20 mesh is treated by two stage flotation. The flotation process uses hydrophilic or hydrophobic chemical reagents with aeration to separate suspended particles.

Crusher Plant for Phosphate Production

In general, phosphate rock processing requires crushing, grinding, and classification. Primary size reduction generally is accomplished by crusher plant and grinding mills. Some classification of the primary crushed rock may be necessary before secondary grinding takes place. Extensive crushing and grinding is needed to liberate phosphate from the material. Phosphate rock maybe crushed in two or three different phases: primary, secondary and tertiary crushing. Rock crushing process often involves one or more phases of screening to separate the different sized varieties. Crusher plant for phosphate production may involve jaw crusher, impact crusher, cone crusher, VSI crusher etc. according to different production requirements.

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