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Papers - Grinding - Crushing and Grinding Practice, Tennessee Copper Company (Mining Technology, May 1940.) (with discussion)
By F. M. Lewis, J.F. Myers
The Tennessee Copper Company's operations are in the Ducktown Basin, in the extreme southeast corner of Tennessee. The ore is of the heavy sulphide type, the predominating sulphides being pyrite,
Jan 1, 1943
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Papers - Grinding - Crushing and Grinding Practice, Tennessee Copper Company (Mining Technology, May 1940.) (with discussion)
By J. F. Myers, F. M. Lewis
The Tennessee Copper Company's operations are in the Ducktown Basin, in the extreme southeast corner of Tennessee. The ore is of the heavy sulphide type, the predominating sulphides being pyrite,
Jan 1, 1943
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Principles Of Cadmium Production And Their Application At The Outokumpu Zinc Plant In Kokkola
By S. Fugleberg
As a result of research work done during the planning of the Kokkola zinc plant it was found that a very efficient cementation of impurities from the suspension obtained after leaching copper and cadm
Jan 1, 1973
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Recent Experimental Studies Of Brittle Fracture Of Rocks
By W. F. Brace, James D. Byerlee
Although prediction of failure of rocks may be ultimately possible without knowing in detail how failure occurs, understanding of this process is certainly of fundamental interest in rock mechanics. O
Jan 1, 1967
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The Elko Prince Mine and Mill
By J. V. N. Dorr
THE Elko Prince mine is in the Gold Circle district, Nevada, about ½ miles(2. 4km.) from the town of Midas, 55 miles (88.5 km.) west of Battle Mountain and 50 miles (8.5 km.) northeast of Golconda.
Jan 8, 1918
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Institute of Metals Division - The Effect of Striation Substructure on the Critical Resolved Shear Stress of Zinc Single Crystals
By G. B. Craig, J. Rezek
The critical resolved shear stress of zone-refined zinc single crystals deformed in tension is found to increase with increasing amount of striation substructure. The increase in strength with numbers
Jan 1, 1962
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Minerals Beneficiation - Adsorption of Xanthate on Illuminated Lead and Zinc Sulfides
By Claudio Guarnaschelli
Alteration of the electronic distribution of mineral surfaces by light irradiation has been used to modify the adsorption characteristics of flotation reagents. Energy of a few electron volts is sufic
Jan 1, 1971
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Extractive Metallurgy Division - Thermodynamic Properties for the Zn-Cd System from Electromotive Force Measurement
By D. J. Wynnemer, G. W. Preckshot
Precise electromotive force measurements have been made on the zinc-cadmium system over the temperature range 700° to 900°C. Activity coefficients, partial free energies, enthalpies, and entropies hav
Jan 1, 1962
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American Glass Sands, Their Properties And Preparation
By Charles Fettke
IN THE present day manufacture of glass nearly pure quartz sands are used almost exclusively as the source of the silica, which is the major constituent of all common varieties of glass. Ordinary soda
Jan 2, 1926
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Genetic Groups Of Hypogene Deposits And Their Occurrence In The Western United States
By Joseph T. Singwald
INTRODUCTION THE purpose of this chapter is to present the diagnostic features (geologic, mineralogic, chemical, and physical) of the principal types of hypogene ore deposits recognized in current
Jan 1, 1933
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75th Anniversary Celebration Marks All-Time High in AIME Meetings
By AIME
IN the parlance of Hollywood, it was a super-colossal meeting. In the more restrained language of engineers, the Institute's 75th Anniversary Celebration attracted the largest crowd ever; was the
Jan 1, 1947
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4. Triassic Magnetite and Diabase at Cornwall, Pennsylvania
By Davis M. Lapham
Ore bodies at Cornwall, Pennsylvania, have been mined since 1742 principally for iron from magnetite, but also for copper (in chalcopyrite), silver (in chalcopyrite), gold (in chalcopyrite), cobalt (i
Jan 1, 1968
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Notes on the Physical Action of the Blast-Furnace
By J. E. Johnson
IT is the purpose of the present paper, while not excluding chemical considerations, to deal more extensively with some of the physical and mechanical aspects of the blast-furnace process, and to poin
Sep 1, 1905
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The Treatment Of Complex Silver-Ore At The Lucky-Tiger Mine, El Tigre, Sonora, Mexico.
By D. L. H. Forbes
(New York Meeting, February, 1912.) Introduction.. THE application of the cyanide process to complex sulphide ores for the extraction of their bold and silver is no longer a novelty, but, as an exam
Aug 1, 1912
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The Smelting Of Copper 'ores In The Electric Furnace.
By Dorsey Lyon
I. INTRODUCTION. In presenting, this paper the writers wish to call attention first of all to the fact that the electric furnace was not developed as a competitor of the combustion furnace, but: 1.
Jan 8, 1913
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The End of the Century (8b444765-b921-401b-b94c-3816957c5e9d)
By Thomas T., Read
THE decades immediately before and after the end of the nineteenth century (1890-1910) were a period of increased activity in mineral industry education. One reason for ,this, undoubtedly, was the rap
Jan 1, 1941
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International Mining Company Case Study – Industrial Minera Mexico, S. A.
By Tomek Ulatowski
INTRODUCTION In 1974, Industrial Miners Mexico, S.A. (IMMSA), agent for the borrowers, was the largest privately-held mining, smelting, and refining company in Mexico (accounting for 32% of Mexico&
Jan 1, 1985
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Some Things We Don't Know about the Creep of Metals
By H. W. Gillett
UNLIKE most previous Howe lecturers, I had not the good fortune to be associated with Henry Marion Howe, nor to be directly one of his students. Yet, through his writings, he has been my teacher, as h
Jan 1, 1939
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Symposium On Western Phosphate Mining ? Foreword
By E. M. Norris
Phosphate deposits are distributed widely over the earth's surface. Of the known areas of deposit, eight fields are of particular interest because of their vast reserves of high grade phosphatic
Jan 1, 1949
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Recent Oil Prospecting In Spain
By Thomas Bannon
PROSPECTING for oil in Spain has been going on for many years but only in a very haphazard way and without adequate geological or technical advice. Shallow wells have been drilled in several provinces
Jan 3, 1924