carbon-regeneration-process
Gold Extraction

Carbon Regeneration

In normal process streams activated carbon is exposed to a variety of chemicals. Organic compounds tend to adsorb readily on the hydrophobic activated carbon, which

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Sketch showing the location of flood gold
Geology

Types of Placers

Perhaps the best known schemes for the classification of gold placer deposits are those by Jenkins and Brooks, the former being based on conditions of deposition

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gold-placer-geology
Geology

Gold Placer Geology

The source of gold or other minerals found in a placer may be one or more of the following: a. Lodes or mineralized zones. b. Erosion

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Colorimetric Analysis

This method of analysis is generally applied to the determination of small percentages of an element or compound, and in this chapter the following will

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example
Various

Analysis by Neutralisation

The measurement of the strength of an acid by the quantity of alkali required to neutralise it (termed acidimetry), and the measurement of the strength

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copper-smelting
Various

Electrolytic Analysis

The theory of electrolysis cannot be taken up at any length here, and the student desiring fuller information on this subject is referred to the

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ore
Various

Assaying Lead Ores

To determine by fire-assay the percentage of lead in: (a) The sulphide. Galena (PbS). (b) An oxidised ore containing Cerussite (PbCO3), Anglesite (PbSO4), etc. (a) The

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