General mining

General mining

General mining related terms and definitions in minerals and related activities.

Industry: Mining

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General mining

Sturzelberger iron reduction process

Mining; General mining

A process evolved for dealing with pyrite roasting residues rich in zinc (8% to 10%). The direct reduction takes place in a short rotary drum that has a rammed tar-dolomite lining. Lime is added to ...

Copaux-Kawecki fluoride process

Mining; General mining

A process for converting beryl to beryllium oxide by sintering a mixture of beryl, soda ash, sodium silicofluoride, and sodium ferric fluoride, leaching with hot water, and adding caustic soda to ...

Sawyear-Kjellgren process

Mining; General mining

A process for converting beryl to beryllium oxide, based on quenching the melted beryl in cold water. The resultant frit reacts with concentrated sulfuric acid, and is steamed and agitated. The ...

Bethell's process

Mining; General mining

A process for creosoting timber (such as track sleepers) to extend its useful life. The timber is first dried, then placed in a cylinder and subjected to partial vacuum, and finally impregnated with ...

Scortecci process

Mining; General mining

A process for direct reduction of iron pyrites that depends on the dissociation of pyrites in the absence of air, and in the presence of carbon, with the formation of iron and carbon disulfide.

Bayer process

Mining; General mining

A process for extracting alumina from bauxite ore before the electrolytic reduction of alumina.

Mond process

Mining; General mining

A process for extracting and purifying nickel. The main features consist of forming nickel carbonyl by reaction of the finely divided reduced metal with carbon monoxide, and decomposing the nickel ...