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Full-Text Articles in Mining Engineering
Copper And Gold In Vapors And Liquids As A Function Of Hcl At 700°C And 100 Mpa, Corrie A. Lucchesi
Copper And Gold In Vapors And Liquids As A Function Of Hcl At 700°C And 100 Mpa, Corrie A. Lucchesi
Graduate Research Theses & Dissertations
Porphyry ore deposits are major sources of copper (Cu) and gold (Au) and form when a magmatic volatile phase (MVP) exsolves from a porphyritic intermediate to felsic melt and transports metals to surrounding country rock where they precipitate in an ore zone. There is a consensus that the chloride concentration of the MVP has a direct relationship to the concentration of Cu and Au in the MVP, but the role of dissolved HCl on Cu and Au concentrations has not been addressed. It is hypothesized that increasing HCl concentrations in the MVP will result in higher concentrations of Cu and …
Improving Base Metal Electrowinning, Charles Ebenezer Abbey
Improving Base Metal Electrowinning, Charles Ebenezer Abbey
Doctoral Dissertations
"In zinc electrowinning, Mn oxidizes to form MnO2 on Pb-Ag anodes, cell walls and pipes. MnO2 reduces anode corrosion but also leads to short circuits and maintenance issues. MnO2 is thought to interact with chloride ions and produce oxidized chlorine species. The interactions between Mn and Cl are not well understood. Bench scale experiments were conducted to investigate the effects of the manganese to chloride ratio on anode corrosion rate and electrolyte chemistry using rolled Pb-Ag anodes. Increasing the average Mn/Cl- ratio from ~7:1 to ~11:1 reduced the anode corrosion rate. Anode scales produced with Mn/Cl …
Effects Of Defects On Armatures Within Helical Flux-Compression Generators, Jason Baird, Paul Nicholas Worsey, Mark F. C. Schmidt
Effects Of Defects On Armatures Within Helical Flux-Compression Generators, Jason Baird, Paul Nicholas Worsey, Mark F. C. Schmidt
Mining Engineering Faculty Research & Creative Works
Tubes of aluminum and copper filled with C-4 high-explosive were tested during this study of the effects of explosive flaws and voids, their sizes and locations, and of the effects of armature machining tolerances on the expansion characteristics of armatures within helical flux-compression generators. Flaws and voids were introduced into the explosive fill of 6061-T6 aluminum armatures during assembly. The defects were located along the major axis of the fill, midway between the major axis and the explosive/armature interface, and at the interface. The resulting effects on armature expansion were recorded by high-speed framing camera, intensified charge-coupled display (ICCD) photography …
Some Ore Deposits In Maine And The Milan Mine, New Hampshire, William H. Emmons
Some Ore Deposits In Maine And The Milan Mine, New Hampshire, William H. Emmons
Maine Collection
Some Ore Deposits in Maine and The Milan Mine, New Hampshire
by William H. Emmons
Department of the Interior, United States Geological Survey - Bulletin 432
Washington, D.C. (1910).
Contents: Introduction / Geology / Ore Deposits / Descriptions of Mines / Mines of Hancock County / Mines of Washington County / Mines in Somerset and Oxford Counties / Milan Mine, New Hampshire / Index