Uran in Phosphaten. Herkunft und industrielle GewinnungÖsterreichische Chemiker-Zeitung (1970)
Phosphate rock is the major source of phosphorus in nature. It exists mainly in the form of hydroxy and fluorapatite or a mixture of both. About 100 million tons of rock are treated annually mainly for the production of fertilizers and a minor amount is used in the detergent and food industries. Phosphate rock is of two types: Sedimentary, this represents about 90% of the world reserves and is characterized by containing about 100 ppm uranium and minor amounts of rare earths. An example of this type is in Florida, North Africa, and the Middle East. Igneous, this represents the remaining 10% the world reserves and is characterized by containing about 1 to 2% rare earths and negligible amounts of uranium. An example of this type is in the Kola Peninsula and in Brazil. Methods for the recovery of uranium from these sources are outlined.
- Phosphate rock,
- Solvent extraction,
Publication DateOctober, 1970
Citation InformationÖsterreichische Chemiker-Zeitung 60.10 (1959): 284-287