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The Cyanide Process It's Practical Application and Economical Results (Includes Vol 2 & 3)

£50.00

Product description

Volumes 2 & 3 hardback. Ex-library books both missing there dust jackets. Spines and outer boards have visible chipping and are very shelf worn. Pages have foxing and are browned due to there age. The font is clear and readable throughout both volumes. Hand drawn diagrams and maps throughout both volumes.

Published by California State Mining Bureau, San Francisco, 1894.

The "cyanide process" for extracting gold and silver from ores is based on the fact that a diluted solution of potassium cyanide dissolves these metals, forming, respectively, auro-potassic cyanide and argento- potassic cyanide, from many ores, without dissolving to any material extent the other components thereof. The process consists of treating suitable ores, when finely divided, with a weak solution of potassium cyanide, either by allowing the solution to percolate through the ore or by agitating a mixture of the ore and solution. This part of the operation being completed, the solution is separated from the solid material and the gold and silver are precipitated in metallic form. This process for the extraction of gold and silver is comparatively old in its principle, but modern in its technical application. During the last four years it
has been introduced into almost every gold field, and upwards of $14,000,000 in gold and silver have been recovered by the process, which
demonstrates beyond doubt that it is one of the most important additions to the wet methods of gold and silver metallurgy. The aim of this
paper is to present the history of the process and to describe the ores for which it is adapted, together with their preparation and manipulation
during treatment. The economical features of the cyanide process are also dwelt on at some length. The text is illustrated by plans and diagrams.

Item details

Author(s):
Scheidel, Dr A.
Condition:
Fair
Dimensions:
22cm x 14cm
Format:
Hardback
Number of pages:
0
Publisher:
California State Mining Bureau
Title:
The Cyanide Process It's Practical Application and Economical Results

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About this item

Volumes 2 & 3 hardback. Ex-library books both missing there dust jackets. Spines and outer boards have visible chipping and are very shelf worn. Pages have foxing and are browned due to there age. The font is clear and readable throughout both volumes. Hand drawn diagrams and maps throughout both volumes.

Published by California State Mining Bureau, San Francisco, 1894.

The "cyanide process" for extracting gold and silver from ores is based on the fact that a diluted solution of potassium cyanide dissolves these metals, forming, respectively, auro-potassic cyanide and argento- potassic cyanide, from many ores, without dissolving to any material extent the other components thereof. The process consists of treating suitable ores, when finely divided, with a weak solution of potassium cyanide, either by allowing the solution to percolate through the ore or by agitating a mixture of the ore and solution. This part of the operation being completed, the solution is separated from the solid material and the gold and silver are precipitated in metallic form. This process for the extraction of gold and silver is comparatively old in its principle, but modern in its technical application. During the last four years it
has been introduced into almost every gold field, and upwards of $14,000,000 in gold and silver have been recovered by the process, which
demonstrates beyond doubt that it is one of the most important additions to the wet methods of gold and silver metallurgy. The aim of this
paper is to present the history of the process and to describe the ores for which it is adapted, together with their preparation and manipulation
during treatment. The economical features of the cyanide process are also dwelt on at some length. The text is illustrated by plans and diagrams.

Author(s):
Scheidel, Dr A.
Condition:
Fair
Dimensions:
22cm x 14cm
Format:
Hardback
Number of pages:
0
Publisher:
California State Mining Bureau
Title:
The Cyanide Process It's Practical Application and Economical Results

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