Abstract

"Statement of Problem: Metallurgy of Gold, etc.

Required, description of process and machinery used in the extraction of Gold and Silver from earthy and siliceous ores as found in California, the ores being represented by the following- SiO2, 91.44; (Zn,Pb)+Cu2S, 1.38; Al2O3, Fe2O3, etc. 6.39; Au, .0017, Ag2S .12, Variable in 1st, 2nd, and 3rd class ores.

1° - The methods, etc. employed in treating 1st class ores, -such as exceed in value $150 per ton.

2° - Methods, etc. in treating 2nd class ores, such as ore valued at less than $150 per ton.

Give in detail the chemistry of each process described, also illustrated by drawings of machinery &c. for crushing, separating, retorting, melting, casting, etc.

Give as nearly as possible the commercial values of all products and by-products.

Separation of gold and silver is included in this"--pages 3-4.

Department(s)

Materials Science and Engineering

Degree Name

Professional Degree in Metallurgical Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1878

Pagination

30 pages, 6 plates

Geographic Coverage

Comstock Lode, Nevada

Rights

© 1878 L. R. Grabill, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Gold ores -- Nevada
Silver ores -- Nevada

Thesis Number

T 62

Print OCLC #

5920089

Electronic OCLC #

248659572

Comments

L. R. Grabill determined to be Lee R. Grabill from the "1874-1990 MSM-UMR Alumni Directory".
Holograph [Handwritten and illustrated in entirety by author].
Download includes a transcription of this handwritten thesis.

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Figures 14-15

Included in

Metallurgy Commons

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Thesis Location

 
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