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A novel technique for the recovery of coarse North Carolina phosphate.

Authors
Davis BE; Llewellyn TO; Sullivan GV
Source
Miner Metall Process 1986 Aug; 3(3):198-200
NIOSHTIC No.
10005413
Abstract
A technique was devised by the US Bureau of Mines to recover coarse [ + 1.2-mm (14-mesh)] North Carolina phosphate now discarded as waste. Concentration utilizes the difference in particle sphericity between the relatively flat calcite and the rounded phosphate pebbles. Sizing, treatment in a continuous hydraulic classification system, and grinding upgraded a 17% P2O5 reject to 24.5% P2O5 with a phosphate recovery of 63%. The CaO:P2O5 ratio was reduced from 2.49 to 1.66.
Keywords
Metallurgical processes; Metallurgy; Mineral processing; Phosphates
CODEN
MMPRE8
Publication Date
19860801
Document Type
OP; Journal Article
Fiscal Year
1986
Identifying No.
OP 11-86
Issue of Publication
3
ISSN
0747-9182
NIOSH Division
TURC
Source Name
Minerals & Metallurgical Processing
State
NC; AL
Page last reviewed: January 27, 2023
Content source: National Institute for Occupational Safety and Health Education and Information Division