The majority of phosphoric acid is produced by the wet process, in which phosphate rock is reacted with sulfuric acid to produce phosphoric acid and gypsum (calcium sulfate dihydrate). This wet process demands a phosphate rock feed that meets certain specifications to produce phosphoric acid efficiently and economically.
The book thoroughly explains the methods used in beneficiation of different types of phosphate ores for use in the wet process. The mineralogical properties of the two major types of phosphate deposits, sedimentary and igneous, are described along with the processing methods. The benefits and disadvantages of each process are discussed in detail:
•Introduction
•Sources of Phosphate Rock
•Beneficiation of Siliceous Sedimentary Phosphate Ores
•Beneficiation of High-MgO Sedimentary Phosphate Ores
•Beneficiation of Igneous Phosphate Ores.
The book is available from the SME.
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