98 resultados para East Butte Copper Mining Company
em Digital Commons - Montana Tech
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In this issue...School of Mines Year Book, Junior Promenade, Clark Park, Archie McPhail, Anderson Carlisle Banquet, Butte, Montana, East Butte Copper Mining Company
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In this issue...Mr. W. B. Daly, Wise River Dam, Montana State Fair, Butte Electric Railway Company, Mines Smoker, St. Lawrence Mine, American Legion
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The use of manganese in the steel industry as a deoxidizing and desulfidizing agent makes it a necessity in modern industry, while the various alloy steels using manganese for the quality of toughness are also indispensable. Manganese is also used in the manufacture of such various articles as battery cells, paints and glass.
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Very little work has been done towards the recovery of zinc from mine water because the zinc content of the water is generally low. As different from copper, which can very easily be replaced by iron in any of its solutions, zinc is very high up in the electro-chemical series and so the few metals above zinc, most of which are rare and hence expensive, cannot be used to replace zinc from its solution.
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In writing this report, two objects were kept in mind, (1) to explain, if possible, the origin of the chromite deposits found in Sweetgrass and Stillwater Counties, and (2) to bring up to date all information on these deposits which had thus far been available. The work done consisted of study of the rocks and ores of the area under the microscope, both as thin sections and as polished sections, practically all of which was done at the Montana State School of Mines, during the school year of 1928 - 1929. The rock specimens and much information as to their locations and probable compositions were obtained from Mr. P. F. Minister, of the East Butte Copper Company. United States Geological Survey Bulletin 725-A, Deposits of Chromite in California, Oregon, Washington, and Montana, and the unpublished report on the Chromite deposits of the Boulder River, prepared by Prof. C. H. Clapp of the University of Montana, were frequently referred to and considerable material was drawn from them. The map of the Boulder River area is from Clapp's report.
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The increase in hardness is attributed to the manganese silicide being precipitated from solid solution and deposited between crystal planes. The subsequent softening which occurs on prolonging the period of reheating is believed to be due to an agglomeration of the dispersed hardening agent.
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The Purpose of this thesis was to investigate the possibility of concentrating scheelite from Wilfley table gold concentrates from the mill of the Jardine Mining Company; and to determine whether such concentration is economically feasible and the product of sufficiently high grade to meet commercial specifications for such a product.
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In this issue...Ore Dressing, John Quinn, Butte, Montana, copper, Mt. View mine, Anaconda Copper Mining Company
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In this issue...First aid, Anaconda Copper Mining Company, Butte Y.M.C.A., School of Mines gymnasium, Oratory contest, Glee Club
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In this issue...commencement, Butte, Montana, W. B. Daly, Anaconda Copper Mining Company, Masonic Hall, white-washing the M, Rocky Mountain Garden Club
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In this issue...School of Mines Smoker, Handball Tournament, Anaconda Copper Mining Company, Thornton Hotel, President Coolidge, Clark Park, Butte, Montana, Professor Simons
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In this issue...General Electric Company, Butte, Montana, Belmont Mine, Mountain Con Mine, Mines Debate Team," M" Annual, Montana Power Company
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In this issue...Mrs. Horace Vaughn Winchell, Anaconda Copper Mining Company, United Engineering Societies library, Geological Engineering, Columbia Gardens
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In this issue...M Club Dance, Rabbi Emanuel Sternheim, Women's Athletic Association, Men's Smoker, Gamer's Café, Anaconda Copper Mining Company
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In this issue...Rocky Mountain Garden Club, Big Butte, M Days, Butte Montana, Salt Mine, Walker's Café, Tex Rickard, State Oratory Contest, Frank Moran