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Insoluble cross-linked starch xanthate as a selective flocculant for sulfide minerals.

Authors
Termes SC; Wilfong RL; Richardson PE
Source
Transactions of the American Institute of Mining, Metallurgical, and Petroleum Engineers, New York: The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1983 Feb; 274:1971-1977
Link
NIOSHTIC No.
10004081
Abstract
This Paper discusses recent Federal Bureau of Mines research on the selective flocculation of various minerals with insoluble cross-linked starch xanthate (ISX). ISX is insoluble, has a shelf life of more than a year when kept cold, and has a higher molecular weight due to cross-linking than the soluble, non-cross-linked starch xanthate used in pevious flocculation studies on nonsulfide minerals. ISX readily flocculates a number of sulfide mineral fines, but no silicious gangue. Floc formation, floc size, and settling rate are dependent on pH. The pH dependence, however, differs for each mineral. Bornite has been selectively flocculated from bornite-quartz mixtures, and the bornite-containing focs were separated from the unflocculated quartz using decantation and washing procedures.
Keywords
Mineral processing
Publication Date
19830201
Document Type
OP; Conference/Symposia Proceedings
Fiscal Year
1983
ISBN No.
0895204282
Identifying No.
OP 115-84
NIOSH Division
AVRC
Source Name
Transactions of the American Institute of Mining, Metallurgical, and Petroleum Engineers, Society
State
MD
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division