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Characterization studies of Florida phosphate slimes.

Authors
Lamont-WE; McLendon-JT; Clements-LW Jr.; Feld-IL
Source
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 8089, 1975 Jan; :1-24
Link
NIOSHTIC No.
10007607
Abstract
The federal Bureau of Mines, in cooperation with phosphate companies in the Florida land-pebble area, made a comprehensive study of the waste clays, or "phosphate slimes," produced in the mining of phosphate rock in Florida. These slimes represent a significant ecological problem and a major deterrent to effective land recovery in the phosphate-mining areas. Physical, chemical, and mineralogical studies were made of slime samples submitted by 15 of the 16 plants in Florida in an effort to identify factors that prevent successful consolidation of the slimes and subsequent recovery of the mined lands. Results of these studies indicated that the clay mineral attapulgite, a hydrated magnesium silicate, was primarily responsible for the very poor settling characteristics of the slimes, and that the quantity of attapulgite in the slimes effectively controlled the settling rate, pulp density of terminal solids, viscosity, percent solids of filter cake, and flocculant requirements. Work done in cooperation with the University of Alabama.
Publication Date
19750101
Document Type
IH; Report of Investigations
Fiscal Year
1975
NTIS Accession No.
PB-249688
NTIS Price
A03
Identifying No.
RI-8089
NIOSH Division
TURC
Source Name
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 8089
State
AL; FL
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