Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Fluorine recovery from phosphate rock concentrates.

Authors
Nash-BD; Blake-HE Jr.
Source
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 8205, 1977 Jan; :1-16
Link
NIOSHTIC No.
10007776
Abstract
The Bureau of Mines continued its research into the recovery of fluorine by the phosphoric acid acidulation defluorination of phosphate rock concentrates. A small process development unit with a capacity of about 10 kilograms of charge per hour was operated, and concentrates from both Idaho and Florida were processed. Over 80 percent of the fluorine was evolved and recovered as a dilute fluosilicic acid solution. Phosphate extraction from the concentrates always exceeded 98 percent. The fluorine was converted to a synthetic fluorspar product (3CaF2.SiO2) suitable for use as a slag conditioner in electric furnace steelmaking operations.
Publication Date
19770101
Document Type
IH; Report of Investigations
Fiscal Year
1977
NTIS Accession No.
PB-263520
NTIS Price
A03
Identifying No.
RI-8205
NIOSH Division
ALRC
Source Name
Fluorine recovery from phosphate rock concentrates
State
FL; ID; OR
TOP