EVALUATION OF SEBAIYA-WEST PHOSPHATE CONCENTRATE FOR NITROPHOSPHATE FERTILIZER PRODUCTION

Authors
ABDELAAL EA AMER AM
Citation
Ea. Abdelaal et Am. Amer, EVALUATION OF SEBAIYA-WEST PHOSPHATE CONCENTRATE FOR NITROPHOSPHATE FERTILIZER PRODUCTION, Minerals engineering, 8(10), 1995, pp. 1221-1230
Citations number
11
Categorie Soggetti
Engineering, Chemical","Mining & Mineral Processing",Mineralogy
Journal title
Minerals engineering → ACNP
ISSN journal
08926875
Volume
8
Issue
10
Year of publication
1995
Pages
1221 - 1230
Database
ISI
SICI code
0892-6875(1995)8:10<1221:EOSPCF>2.0.ZU;2-Z
Abstract
Processing of Sebaiya-West phosphate concentrate is attained through l eaching of the concentrate with nitric acid under atmospheric pressure . This process yields nitrophosphate fertilizer. 99.2% of P2O5 is leac hed by boiling with nitric acid of concentration 58% (12.5 M) for 1 ho ur. 80% of calcium nitrate tetrahydrate is separated by cooling. The m other liquor is ammoniated to give ammonium phosphate, ammonium nitrat e and dicalcium phosphate. The analysis of the fertilizer produced is 15.3% total P2O5 15.3% citrate-soluble P2O5 10.6% water-soluble P2O5, 22.6% total N and 4.8% CaO.