Phosphate Rock. The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world.
World Phosphate Rock Reserves and Resources S. Van Kauwenbergh Geologist and Principal Scientist Research and Development Division IFDC Fertilizer Outlook and Technology Conference Hosted by The Fertilizer Institute and the Fertilizer Industry Roundtable November 1618, 2010 Savannah, GA . IFDC Rosemarin 2004 Rosemarin et al. 2009 Cordell, Dragert and White 2009 de Haes et al. 2009 Vaccari
As a mineral resource, phosphate rock is defined as unprocessed ore and processed concentrates that contain some form of apatite, a group of calcium phosphate minerals that is the primary source for phosphorus in phosphate fertilizers, which are vital to agriculture.
Generally, phosphate rock contains about 0.05 wt% rare earth elements (REEs) on average. And the world commercial phosphate rock production is estimated to be 250 million tons per year, that makes phosphate rock a potential new REEs resource. However, low content of REEs in phosphate rock leads to the technical challenges and cost overages
Rock phosphate can also be found in Egypt, Israel, Western Sahara, Navassa Island, Tunisia, Togo, and Jordan, countries that have large phosphatemining industries. Phosphorite mines are primarily found in: North America. United States, especially Florida, with lesser
Phosphate Beneficiation. Market Specifications Bone phosphate of lime, 70 to 72 per cent, common. Bone phosphate of lime 72 to 77 per cent, premium. Production Problems. Phosphate rock being a lowpriced material is produced as near the fertilizer market as possible and haulage costs determine production. Flotation of fine sand from the pebble