
Mining and Concentration What Mining to What Costs
Mar 13 2014· In 2011 US production of crude phosphate rock ore was 129 Mt containing 133 Mt P 2 O 5 Jasinski 2013b Table 3 The reduction from crude ore to marketable production 129 to 281 Mt resulted in a loss of 514 Mt of P 2 O 5 from 133 Mt of P 2 O 5 in crude ore to 816 Mt of P 2 O 5 in marketable production