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Articles 91 - 120 of 171
Full-Text Articles in Mining Engineering
A Study Of The Settlement Of Slimes, William Simpson Hall, James Crawford Compton
A Study Of The Settlement Of Slimes, William Simpson Hall, James Crawford Compton
Bachelors Theses
"The purpose of this thesis, as originally planned, was to determine the effect produced by certain substances called electrolytes upon the mill product known as "slimes". The subject presented an ever increasing number of new problems as it progressed and some work along the line of several of these branches is embodied in the following pages. Reports of investigation and behavior of slimes when treated for quick settlement are few and unsatisfactory. Our results may prove nothing already unknown, but the fact that so little data is easily accesible sic has been the motive for this thesis"--Preface, page 1.
Timbering In The Warren District, Cochise Co., Arizona, Fred Tete Boyer
Timbering In The Warren District, Cochise Co., Arizona, Fred Tete Boyer
Bachelors Theses
No abstract provided.
Radiation Losses In Metallurgical Furnaces, Frank Richard Loveridge
Radiation Losses In Metallurgical Furnaces, Frank Richard Loveridge
Bachelors Theses
"The conduction and radiation of heat are of great importance in metallurgy. Metallurgical operations require, in the great majority of cases, temperatures above those of normal atmospheric conditions. Loss of heat is loss of dollars. Furnaces of all kinds allow to pass their walls a greater or less amount of heat, i.e. heat is lost by conduction and by radiation. This heat is often spoken of as radiation loss. It is due to the heat being conducted from the inside to the outside of the furnace. The materials of construction, and manner of building the furnace has much to do …
The Construction Of The United States Macadam Road At Fort Scott, Kansas, William Mcelroy
The Construction Of The United States Macadam Road At Fort Scott, Kansas, William Mcelroy
Bachelors Theses
No abstract provided.
A Report On The Shattuck And Arizona Mine At Bisbee, Arizona, John Joseph Sanford
A Report On The Shattuck And Arizona Mine At Bisbee, Arizona, John Joseph Sanford
Bachelors Theses
"The Shattuck and Arizona Mine is about one-half mile southwest of the town of Bisbee and five-sixteenths of a mile west of the Holbrook shaft of the Copper Queen property. The mine is on the east slope of Escanbrosa Ridge and a quarter of a mile up Uncle Sam Gulch. It adjoins the Uncle Sam Mine on the north and the Cuprite, a Copper Queen property, on the east"--Location, page 1.
Pot Roasting Of Lead Ores, Ralph Robert Benedict, Edward Phillip Barrett, Frank William Harper
Pot Roasting Of Lead Ores, Ralph Robert Benedict, Edward Phillip Barrett, Frank William Harper
Bachelors Theses
"In this thesis for a starting point, we attempted a roast of straight galena with no diluent. As anticipated the results were nil. We next attempted the roast with a mixture of galena and silica, and obtained fair results. Our next experiment was to use limestone with the galena. Because of the large percentage of limestone present the results were not satisfactory. Next pyrites and limestone were used with the galena, and excellent results were obtained. We made another run, using pyrites and limestone, but increasing the per-centage of galena by 25%. This run was also very successful. From these …
Tests Of Efficiency Of The Rolla Power Plant, Ward Barr Mix, Edwin Bryant Thornhill, George Fred Kellogg, Clyde Rex Wood
Tests Of Efficiency Of The Rolla Power Plant, Ward Barr Mix, Edwin Bryant Thornhill, George Fred Kellogg, Clyde Rex Wood
Bachelors Theses
"The object of the test was to determine the efficiency of the separate units and of the plant as a whole under actual normal working conditions"--Object, page 1.
Test Made On The Missouri School Of Mines Power Plant, Leland R. Walker, George Hewitt Boyer, Alfred Leo Nye
Test Made On The Missouri School Of Mines Power Plant, Leland R. Walker, George Hewitt Boyer, Alfred Leo Nye
Bachelors Theses
"The primary object of this thesis was to obtain the total efficiency of the Missouri School of Mines Power Plant"--page 1.
Mining And Milling Of A Low Grade Copper Ore, Richard Edward Armstrong, Horace Asahel Johnson
Mining And Milling Of A Low Grade Copper Ore, Richard Edward Armstrong, Horace Asahel Johnson
Bachelors Theses
No abstract provided.
Effect Of Arsenic On Assay For Gold And Silver, Rosco Conkling Ham, Frederick Arnold Moore
Effect Of Arsenic On Assay For Gold And Silver, Rosco Conkling Ham, Frederick Arnold Moore
Bachelors Theses
"In presenting the within thesis, it is not claimed by the authors that the experiments have been, by any means, exhaustive of the subject. Neither is any claim made to original research work other than a series of simple experiments with a view to determining, if possible, some of the more important effects of Arsenic upon a fire assay for gold and silver as met with in the ordinary assay laboratory. To make a work complete and exhaustive on such a subject will require much more time and more complete apparatus than was available in the experiments covered by this …
Effects Of Copper On The Cupellation Of Silver, Charles A. Baker, Miles Sedivy
Effects Of Copper On The Cupellation Of Silver, Charles A. Baker, Miles Sedivy
Bachelors Theses
"The object of this work is to find the effect of copper in the cupellation of silver. Our method of attack was: 1st. To find the effect of varying the amount of copper with constant lead and constant temperature. 2nd. Effect in cupellation of varying the temperature and the lead in the presence of a constant amount of copper. 3rd. To determine the rate at which the copper is removed during cupellation"--page 1.
The Development Of A Lead, Zinc Prospect, Felix Anthony Lyneman
The Development Of A Lead, Zinc Prospect, Felix Anthony Lyneman
Bachelors Theses
"The writer's object in this thesis is to devise a method of mining the ores from a well-known Chitwood Prospect, Jasper Co., Mo., so that the same will pay dividends"--Object, page 1.
Treatment Of A Low Grade Gold Ore, Paul Richardson Cook, Sakuhei Sunada, Arnold George Baker
Treatment Of A Low Grade Gold Ore, Paul Richardson Cook, Sakuhei Sunada, Arnold George Baker
Bachelors Theses
No abstract provided.
Design, Specifications And Cost Estimate Of Two Hundred Ton Stamp Mill And Cyanide Plant For Treatment Of Gold Ore, John Payne Sebree, William Peter Hatch
Design, Specifications And Cost Estimate Of Two Hundred Ton Stamp Mill And Cyanide Plant For Treatment Of Gold Ore, John Payne Sebree, William Peter Hatch
Bachelors Theses
"The object of this thesis is the designing and a mill, writing specifications for same, and furnishing complete cost of entire plant to treat 200 tons of gold ore"--page ii.
Efficiency Of Mill Practice In The Joplin District, Ira Lee Wright
Efficiency Of Mill Practice In The Joplin District, Ira Lee Wright
Bachelors Theses
"Milling in the Joplin District is, compared with the practice in other zinc fields, seemingly very crude. To one unacquainted with the peculiar conditions of this district, the amount of ore which goes into the tailing pile seems unnecessarily high. There are several things which account for the low saving made"--page 1.
An Investigation Of The Treatment Of A Silver Ore By Lixiviation With Sodium And Cuprous Thiosulphate Solutions, Elston Everett Jones
An Investigation Of The Treatment Of A Silver Ore By Lixiviation With Sodium And Cuprous Thiosulphate Solutions, Elston Everett Jones
Bachelors Theses
"The object of this investigation is to find whether the ore can be treated with profit by lixiviation and to find the best conditions for maximum extraction"--page 1.
Meridian-Projecting Instruments And Methods, Albert Babbitt Bartlett
Meridian-Projecting Instruments And Methods, Albert Babbitt Bartlett
Bachelors Theses
"The writer's attention was called to the necessity of knowing the accuracy attainable in surveying which must depend upon the Meridian, and therefore be subject to the accuracy of it, in seeking information by which to decide what would be the most desirable transit to use in the West, particularly for United States Deputy Mineral Surveying. Descriptions of the manipulation, adjustments, and the cost, etc., of the various appliances are plentiful in the text-books on surveying and in the various catalogues; but there was no very definite information in regard to the actual probable and average accuracy, especially in the …
Lime Roasting Of A Galena Concentrate With Subsequent Smelting In The Blast Furnace, Aubrey P. Fellows, Tsik Chan Tseung, James Carter Long, Edwin Richard Wash
Lime Roasting Of A Galena Concentrate With Subsequent Smelting In The Blast Furnace, Aubrey P. Fellows, Tsik Chan Tseung, James Carter Long, Edwin Richard Wash
Bachelors Theses
"Having on hand a quantity of Galena concentrates, which we wished to treat in the blastfurnace accompanied by a usual previous roast, but having no reverberatory furnace, we decided to experiment upon the ore with lime roasting as invented by Savelsbury, to see if it was practicable"--page 1.
A Special Investigation In Concrete Steel And Application To Square Set System, Horace Alonzo Hand
A Special Investigation In Concrete Steel And Application To Square Set System, Horace Alonzo Hand
Bachelors Theses
"This investigation has been prompted, first, by a desire to become more familiar with concrete-steel in its general application to engineering construction, second, by the inevitable necessity of a substitute in the near future for lumber in mining construction. In first case, a thorough review has been made of principles and practice in the construction of concrete-steel structures in general, including bridges, water towers, reservoirs, viaducts, etc., as found in current engineering journals, which is the most up-to-date source of information available. Special attention has been given to best practice in reinforcing concrete to resist forces of bending, shearing, torsion …
Copper Matting Blast Furnace Run, John Vivian Stevens, Frank Bowman Powell, John Dozier Shanks
Copper Matting Blast Furnace Run, John Vivian Stevens, Frank Bowman Powell, John Dozier Shanks
Bachelors Theses
"The theory of the copper blast furnace run having been given us in the class room, we wishing to familiarize ourselves with the practical processes and the difficulties involved, selected it as the basis of an investigation of which the following is a correct report. The original ore was a high grade copper sulphide from the Ducktown, Tenn. district to which was added some heavy pyritic ore from various quarters. The latter was added to furnish the iron oxide necessary as a flux in the blast furnace and sulphur in sufficient amount to make the ore self roasting when charged …
Treatment Of A Mexican Copper Ore, Harold Thomas Mapes, Robert Hardy Bedford
Treatment Of A Mexican Copper Ore, Harold Thomas Mapes, Robert Hardy Bedford
Bachelors Theses
"The ore to be treated consists of a sulphide carrying some metallic copper"--page 1.
The Commercial Preparation Of Baryta, Ray Fleming Rucker, Damon Duffield Dunkin
The Commercial Preparation Of Baryta, Ray Fleming Rucker, Damon Duffield Dunkin
Bachelors Theses
"The object of this investigation was to ascertain in a general way the methods employed at the present time in mining, milling and leaching baryta, and the commercial uses to which the product is put, with the idea in view of improving these methods and encouraging a more extended use of the product if possible"--page 1.
Furnace Calculations, John Mcmillen Brooks
Furnace Calculations, John Mcmillen Brooks
Bachelors Theses
"A furnace that will smelt a given amount of material per twenty-four hours, to dimension parts, and finally draw the complete plans. Copper Matting Furnace"--Problem, page 1.
Report On Polaris Mine, Stanley Ralston Moore
Treatment Of Joplin Tailings, Preston King Horner
Treatment Of Joplin Tailings, Preston King Horner
Bachelors Theses
"In the Joplin region are enormous piles of tailings, that for waste material, run very high in blende. This is due mainly to the temporary character of the mills which are built with more regard to low first cost than to receiving a high percentage of extraction. As a result we have some piles of tailings containing from 200,000 to 300,000 tons of materials that will average from about 2 to 3% zinc, and all crushed so as to pass through about #2 mesh"--Page 1.
The Treatment Of A Gold-Silver-Copper Ore By The Argo Process, Elmer Cooper Heck, Josephus Jarvis Brown
The Treatment Of A Gold-Silver-Copper Ore By The Argo Process, Elmer Cooper Heck, Josephus Jarvis Brown
Bachelors Theses
No abstract provided.
The Lignite Coal Of North Dakota, Clyde Mckeever Laizure, James Knight Christopher
The Lignite Coal Of North Dakota, Clyde Mckeever Laizure, James Knight Christopher
Bachelors Theses
"Owing to the great abundance of coal, both anthracite and bituminous, in the United States, no state need suffer for the lack of it, but to those states like North Dakota, situated in the great plains region and at great distances from such coal supplies, the price of these coals makes them almost luxuries. In the last few years however, the development of the lignite coal within the state of North Dakota has shown an abundance of fuel for many years to come, which, though at one time considered "A poor excuse for poor wood," now competes successfully with any …
The Investigation Of The Deleterious Action Of Certain Metals On The Cyanide Process For Gold, Lamar Horacio Hunt, William Alexander Gardiner
The Investigation Of The Deleterious Action Of Certain Metals On The Cyanide Process For Gold, Lamar Horacio Hunt, William Alexander Gardiner
Bachelors Theses
"It is our desire in this thesis to try and verify, if possible, the results or conclusions published by several authorities on cyaniding regarding the deleterious action of certain metals on potassium cyanide, and also, to make experiments on several very refractory ores for the purpose of devising some economical method of treatment"--page 1.
The Russell Process -- Laboratory Tests And Design Of Plant, Alfred A. Thomas Jr., Thomas Cowperthwaite
The Russell Process -- Laboratory Tests And Design Of Plant, Alfred A. Thomas Jr., Thomas Cowperthwaite
Bachelors Theses
No abstract provided.
Laboratory Tests And Design Of Plant For Treatment Of Gold Ore, William Charles Wyman, Julian Insco Prugh
Laboratory Tests And Design Of Plant For Treatment Of Gold Ore, William Charles Wyman, Julian Insco Prugh
Bachelors Theses
"The object of this work was to determine methods and design plants best adapted for the estraction sic of gold from a given ore in the most profitable manner. In the following sheets are given in detail the work carried out and our conclusions as to the best method of treating this particular ore"--page ii.