The Extracting of Germanium from Crude Oxide

<p>Since the discovery of germanium in certain American zinc ores, notably that of Joplin, Mo., several procedures have been suggested for the extraction of the germanium. These procedures, however, were simple distillations of the zinc ore with hydrochloric acid carried out in the laboratory...

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Bibliographic Details
Main Author: Clarke, Philip Seymour
Format: Others
Published: 1921
Online Access:https://thesis.library.caltech.edu/482/1/Clarke_ps_1921.pdf
Clarke, Philip Seymour (1921) The Extracting of Germanium from Crude Oxide. Bachelor's thesis, California Institute of Technology. doi:10.7907/XZ1Y-JE25. https://resolver.caltech.edu/CaltechETD:etd-02032005-111330 <https://resolver.caltech.edu/CaltechETD:etd-02032005-111330>
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Summary:<p>Since the discovery of germanium in certain American zinc ores, notably that of Joplin, Mo., several procedures have been suggested for the extraction of the germanium. These procedures, however, were simple distillations of the zinc ore with hydrochloric acid carried out in the laboratory on a small scale. The cost of the materials and the character of the reagents required obviously would cause such procedures to be impracticable on a large scale.</p> <p>In the present investigation, the reactions of germanium compounds and the actions of different reagents on the sample were observed with the view toward developing a method of extraction that would be applicable on and industrial scale. For this purpose, a ten-pound sample of germanium-bearing zinc oxide was furnished by the New Jersey Zinc Co. with the accompanying information that germanium was present in the sample to the extent of 0.25% GeO<sub>2</sub>.</p>