Bachelors Theses

Abstract

"In Wisconsin and other zinc mining districts the blende is frequently found associated with pyrite and marcasite. In the Wisconsin district, especially, the marcasite content of the mine-run ore is high being frequently equal to and in many cases greater than the sphalerite content. At time the marcasite and sphalerite together constitute as much as 25 or 30% of the min-run ore. The characteristic milling treatment of this ore is; first, hand-picking, and then over grizzlies, tromells, rougher and cleaner jigs. Owing to the fact that marcasite and sphalerite differ but slightly in specific gravity the jig concentrate obtained is a mixture of the two and varies in composition from all blende to all marcasite. This product, owing to the high iron content, is not suited for the zinc smelter, and magnetic or electro-static schemes of separation must be resorted to"--Problem of the Work, page 1.

Advisor(s)

Copeland, Durward

Department(s)

Mining Engineering

Degree Name

B.S. in Mining Engineering

Comments

Illustrated by authors.

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1912

Pagination

ii, 26 pages

Note about bibliography

Includes bibliographical references.

Rights

© 1912 Dale Irwin Hayes and Clark Watson Wright, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Pyrites -- Desulfurization
Pyrites
Roasting (Metallurgy)

Thesis Number

T 283

Print OCLC #

5936471

Electronic OCLC #

317137557

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