Details:

Personal Author:
Hansen, Dennis A. ; Traut, D. E. (Davis E.) ; Fisher, G. T. (George T.) ;
Hansen, Dennis A. ; Traut, D. E. (Davis E.) ; Fisher, G. T. (George T.) ; Less -
Corporate Authors:
United States. Bureau of Mines. ;
Description:
"As part of a U.S. Bureau of Mines program to develop a more continuous titanium metal extraction process that uses domestic resources, a study was made to determine the extraction of titanium (Ti) and iron (Fe) from New York rock ilmenite using fluosilicic acid (H2SiF6 ). The effects of leach temperature, acid concentration, and particle size were investigated for the rate at which Ti and Fe are extracted from the ilmenite. Within the leach time studied, the extraction data fit a shrinking-core model; the rate-controlling step was diffusion of H2SiF6 through an ash layer resulting from a heterogeneous leaching reaction. The rate is linearly dependent on the H2SiF6 concentration and 2 6 is inversely proportional to the square of the particle diameter. Using 2.6M H2SiF6 at 85 deg C, 49% of the Ti and 53% of the Fe in 44- to 74-um New York rock ilmenite were extracted in 3 h." - NIOSHTIC-2 NIOSHTIC no. 20023554
Subject:
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Leaching.
Titanium -- Metallurgy.

Document Type:
Report ;
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:d349c0b4e2834fde2289f7ed244efae5e4c70aa74e1712ff789bf5721a3a20bb
File Type:

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