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Full-Text Articles in Engineering
Influence Of Time And Temperature In The Roasting Of Sulphides, Roger Hanson Hatchett
Influence Of Time And Temperature In The Roasting Of Sulphides, Roger Hanson Hatchett
Bachelors Theses
"The original object of this work was to determine the relation between the quantities of oxide and sulphate formed in roasting a sulphide under known conditions of temperature, time and supply of air. But difficulties arose in constructing apparatus, which in the short time allotted could not be overcome. These are mentioned in description of apparatus, and were of such a nature that the relations between products and conditions are for the most part qualitative"--page 1.
Action Of Caustic Hydroxides Upon Aluminum, Herbert Fordyce. Rogers
Action Of Caustic Hydroxides Upon Aluminum, Herbert Fordyce. Rogers
Bachelors Theses
No abstract provided.
Assay Of Copper Matte For Gold And Silver, Walter E. Soest
Assay Of Copper Matte For Gold And Silver, Walter E. Soest
Bachelors Theses
"Ores containing copper, and especially copper matte, have always been very annoying in assaying for the precious metals. In assaying copper matte, and ores containing much copper, by the usual method of scorification, the losses of silver an gold are considerable, owing to the fact that in order to obtain lead buttons, which are soft and free from copper, repeated scorifications are necessary, and moreover it is impossible to obtain lead buttons which are entirely free from copper"--page 1.