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Full-Text Articles in Engineering
The Application Of Amalgam Metallurgy To Copper, Barry J. Hansen
The Application Of Amalgam Metallurgy To Copper, Barry J. Hansen
Bachelors Theses and Reports, 1928 - 1970
The object of this investigation is the application of "Amalgam Metallurgy" to the extraction of copper from its ores. "Amalgam Metallurgy" as defined by Hohn is the use of liquid mercury in the extraction of metals. The ore under study was from the Kelly Mine in Butte, Montana and contains about 1.0% copper of which about 0.1% is acid soluble.
The Effects Of Acid Concentration On The Current Efficiency During The Electrolysis Of Zinc Sulfate Solution, Jon Langfeldt
The Effects Of Acid Concentration On The Current Efficiency During The Electrolysis Of Zinc Sulfate Solution, Jon Langfeldt
Bachelors Theses and Reports, 1928 - 1970
The current efficiency during the electrolysis of zinc sulfate solution and the various factors that effect the current efficiency are major considerations of this industrial process. The factors affecting current efficiency-- temperature, current density, presence of impurities, time of electrolysis, hydrogen overvoltage, smoothness of the deposit, and acid concentration of the cell solution-- are controlled to the extent that current efficiencies of 90-93% are not uncommon in the industrial electrolytic zinc process. However, additional investigations of the effects of these various factors upon current efficiency are warranted, because of the endless search by the non-ferrous metal industries for additional information …
Refining Of Cadmium Metal By Amalgam Metallurgy, Donald Edward Macknight
Refining Of Cadmium Metal By Amalgam Metallurgy, Donald Edward Macknight
Bachelors Theses and Reports, 1928 - 1970
It was the purpose of this investigation to produce copper-free-cadmium from commercially pure cadmium metal employing the principles of electrometallurgy.
Production Of Iron, Chromium And Nickel By Amalgam Metallurgy, Richard Earl Westerman
Production Of Iron, Chromium And Nickel By Amalgam Metallurgy, Richard Earl Westerman
Bachelors Theses and Reports, 1928 - 1970
Certain properties of mercury, such as its affinity for other metals, its high hydrogen overpotential, and its unique liquid state, have made its use desirable for many applications in the fields of physical and process metallurgy. Though considerable research has been done on mercury amalgams, only comparatively recently has it been shown that mercury amalgams follow certain definite laws with regard to phase exchange phenomena and electrochemical properties. It is now possible to predict, with considerable accuracy, the results of amalgam reactions.
Application Of Amalgam Metallurgy To The Extraction Of Indium, John Zelem
Application Of Amalgam Metallurgy To The Extraction Of Indium, John Zelem
Bachelors Theses and Reports, 1928 - 1970
In view of the greater demand for indium with the progressive development of the metal, simpler methods of recovery are necessary. The author here hopes to apply mercury in the metallurgy of indium in an effort to find a simpler method of extraction.
The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings
The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings
Bachelors Theses and Reports, 1928 - 1970
In the hydrometallurgy of copper, probably the most widely used method for the precipitation of copper is by electrolysis using insoluble anodes. The process is similar in many respects to the electrolytic refining of copper; one of the main differences is the use of insoluble anodes in electrowinning as compared to the use of impure copper anodes in electrorefining. Impurities, however, are common to both processes. The nature of these impurities differ and the problem of purifying the electrolyte is also different.
The Effect Of Iron Upon The Electrowinning Of Copper With An Amalgam Electrode, John A. Alexander
The Effect Of Iron Upon The Electrowinning Of Copper With An Amalgam Electrode, John A. Alexander
Bachelors Theses and Reports, 1928 - 1970
Current commercial use of the mercury cathode cell is limited to two types of electrolytic sodium cells-the Castner cell and the Sorenson cell. Mercury as a cathode medium has also found application in polarographic analysis, a method of a simultaneous quantitative and qualitative analysis of several metal components of solution.
Electrowinning With Amalgam Electrode, Ralph V. Anderson Jr.
Electrowinning With Amalgam Electrode, Ralph V. Anderson Jr.
Bachelors Theses and Reports, 1928 - 1970
Amalgam Metallurgy, a relatively new expression in the technology of metal extraction, was first chosen to describe certain new processes developed at the Duisburg Copper Works in Germany. The idea of using mercury, a costly and poisonous metal, as an intermediate in heavy chemical industry and in polarography are of recent origin; with the exception of a series of patents of little significance and occasional comments in the literature, the work is hardly known.
Refining Of Low Grade Zinc-Gold Precipitates, John C. Stentz
Refining Of Low Grade Zinc-Gold Precipitates, John C. Stentz
Bachelors Theses and Reports, 1928 - 1970
The purpose of this investigation was to ascertain if advantage could be taken of the copper in the precipitates as a collecting agent of the precious metals in the direct smelting furnace.The products produced to be low grade anode bullion and a slag low in precious metals, high in zinc and lead.
Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole
Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole
Bachelors Theses and Reports, 1928 - 1970
Electrolysis of molten mixtures of lead chloride and galena was carried out under various conditions of temperature, time, composition, and current densities; without a diaphram, and with various diaphrams. Continuous runs, with necessary additions of lead sulfide and lead chloride to maintain a melt of the proper composition, were attempted on a small scale.