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General mining
General mining related terms and definitions in minerals and related activities.
Industry: Mining
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General mining
dithionate process
Mining; General mining
A process for extracting manganese from low-grade oxide ores. The manganese ore is leached with dilute sulfur dioxide gas in the presence of calcium dithionate solution, the manganese being recovered ...
Linz-Donawitz process
Mining; General mining
A process for making steel from cast iron; it resembles the Bessemer process except for two important differences: (1) oxygen is used rather than air and (2) instead of blowing the gas through ...
oxygen process
Mining; General mining
A process for making steel in which oxygen is blown upon or through molten pig iron, whereby most of the carbon and impurities are removed by oxidation.
contact process
Mining; General mining
A process for making sulfuric acid. Sulfur dioxide gas (obtained by burning pyrite) is purified by electrical precipitation, and is passed over a catalytic agent to form sulfur trioxide that combined ...
Siemens direct process
Mining; General mining
A process for making wrought iron directly from iron ore, without the previous production of pig iron.
lime-soda sinter process
Mining; General mining
A process for manufacturing alumina, Al 2 O 3 . The raw material, such as clay or anorthosite, is sintered with limestone and soda ash to form sodium aluminate and calcium silicate. This sinter is ...
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