Masters Theses

Abstract

"The gangue in some magnetite ore bodies contains feldspar; the alkali content of the feldspar reduces the usefulness of these iron ores. One method of decreasing the feldspar content in magnetite concentrate is froth flotation.

The amine flotation of feldspar from magnetite concentrate was investigated using zeta potential measurements, Hallimond tube flotation tests and laboratory-scale flotation tests. The zeta potential of various feldspars (microcline, albite, anorthite, oligoclase and anorthoclase) were determined as a function of pH; the point of zero charge ranged from pH 1.4 to 2.5. Hallimond tube flotation tests using two amine reagents were conducted on the feldspars. Hallimond tube flotation tests using six amine flotation reagents were performed on the cobber tails (quartz, albite and microcline) from a magnetite concentrating plant; in all cases, over 85 percent flotation recovery was obtained at pH 8 and 10-5 to 10-4 M collector addition. Laboratory-scale (667 grams) flotation tests were performed on the magnetite concentrate in an attempt to float out the feldspar which had reported to the concentrate. The effects of three different collectors, two levels of collector concentration, three pH levels, starch and HF acid were investigated" -- Abstract, p. ii

Advisor(s)

Clifford, Roger K.

Committee Member(s)

O'Keefe, T. J. (Thomas J.)
Sorrell, Charles A.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

University of Missouri--Rolla

Publication Date

1974

Pagination

x, 183 pages

Note about bibliography

Includes bibliographical references (pages 33-62)

Rights

© 1974 Gary William Hudiburgh, Jr., All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 3088

Print OCLC #

6019548

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