Mining Engineering Commons^™

The Goltra Process Of Concentrating Iron Ores As Developed At Waukon, Iowa, Ernest Wander

Professional Degree Theses

"The more or less impure iron bearing mineral occurs mixed with a very tenacious clay, in which are also found chert, cretaceous quartz pebbles, pockets of sand, masses of pebbles and sand cemented by hydrous iron oxide, (which in some cases partly replaces the silica) and several varieties of fossils, such as crinoids etc. The impurities mentioned are often an integral part of the ore particles, and are present in varying quantities thruout [sic] the deposit. But, besides the foreign matter which the eye can discern, the apparently pure mineral contains a varying percentage of silica and alumina, (as well …

Concentration Of A Joplin Slime By Flotation, Earl Joseph Weimer, Walter Harry Freudenberg

Bachelors Theses

"Concentration of the Joplin slimes by means of flotation is a subject receiving considerable attention at the present time, due to high price of zinc. These slimes are the accumulation of the finer particles of the ore during the milling process, and their zinc content is well worth considering. The practice in the past has been to sluice these slimes into the tailing pond, as no economical method of saving the zinc had been employed. The object of our experiment was to economically extract from these slimes by flotation, a product of sufficient zinc content to be of commercial value"--Introduction, …

Selective Concentration Of A Complex Ore By Flotation, Paul Frederick Pape, Ralph Dale

Bachelors Theses

"The problem of the Mining Engineer and Metallurgical Engineer who wishes to treat the slimes and fine sands of a complex ore is the recovery and separation of minerals so as to render a subsequent treatment of any mineral profitable. The minerals must be separated into groups which can be treated by different processes, because a combination of numerous minerals is extremely undesirable at the smelting plant. In a lead ore the presence of zinc often depletes its value to such an extent that it is unprofitable to treat it; likewise with other minerals and ores. Many systems of selective …

Practical Details Of Mine Surveying In Certain Mines Of Northern Mexico, Arturo C. Fernandez

Bachelors Theses

"The name of this thesis is suggestive of its character. The writer has endeavored to resent in a general way some of the most important details of mine surveying as he has found them in actual practice. For the sake of uniformity the engineering staff in which he worked prepared a set of instructions to be used by the engineers at the various mines. The methods and illustrations described in this paper have been adapted from these instructions and they afford a thorough foundation ready to receive the minor details best adapted to each particular mining district"--Foreword, page ii.

Pneumatic Ore Concentration, Robert Winters Johnson, Walter William Weissbach

Bachelors Theses

"The concentration of lead and zinc ores by means of air is practically an unexplored field, although the subject is by no means a new one. Considerable research work has been done and several methods, processes and machines have been developed, but little or nothing has been accomplished towards making air separation a success. the lack of success has been due mainly to two reasons:- (1) That very little has been known about the internal conduct of air currents, and (2) that nearly all methods and machines so far worked out have presupposed the fact that the ore to be …

Mining Methods Of The Calumet And Arizona Mining Company, Warren District, Cochise County, Arizona, James Lawrence Head

Bachelors Theses

No abstract provided.

Flotation Applied To Silicate Sludge, Yaro Klepel, Greene Erskine

Bachelors Theses

"Within the past few years great success has been made of the flotation of sulfids, and to a certain extent of carbonates.

Since sulfids are easily recovered by flotation it seems practicable that silicates could be made to float by first sulfidizing them, and then subjecting them to ordinary flotation treatment.

This problem involves the treatment of a silicate sludge obtained from the Joplin district, the sludge will easily pass through a 250 mesh screen. At the present time this sludge is being sent to the tailings pond.

The experimental work of this thesis was done along the line of …

The Flotation Of A West Joplin, Mo. Slime, John Stone Hoffman, James Joseph Dowd

Bachelors Theses

"Owing to the high price of zinc and the success attending flotation in other districts, intense interest was aroused in the flotation of slimes of the South-West Missouri District. These slimes are the accumulation of the finer particles of the ore during the milling process and their metallic content is generally higher than that of the original ore. They have been disposed of, in the past, by sluicing them to the tailings ponds because no economical method of saving the zinc had been discovered. The object of our experiments was to economically extract from these slimes, by flotation, a product …

Comparison Of Operating Expenses And Capital Expenditures Of Two Different Types Of Boiler Rooms Covering Extensions Expected During The Next Twenty Years, George Hewitt Boyer

Professional Degree Theses

"This thesis applies to a central power station located in a rapidly growing manufacturing city with a present population of 40,000. The station is connected by high voltage transmission lines with six hydro and steam generating stations located in other cities. These transmission lines are mainly for emergency purposes so that this report considers that the station here studied will carry its full load. The boiler room is the only part of the station considered in this thesis as a previous study showed that there was ample space in the engine room for turbo-generator for years to come"--Introduction, page 1.

Cyaniding The Buckhorn Clay, Paul Richardson Cook

Professional Degree Theses

"The Buckhorn, Nevada, gold mine is peculiar in being a shallow kaolinized mass of material with basalt walls, having no direct connection with any of the usual gold bearing rocks, the average ore containing 16% water of hydratum. the cyaniding of this hydrant clayey material offered unusual difficulties compared with the usual gold quartz ore of Nevada. The ore body was thoroughly developed; then the mill was built according to the latest cyanide practice, with such changes as was thought the peculiar nature of this ore demanded. Upon starting the mill, the ore proved more difficulty to handle than had …

Preliminary Report On The Property Of The Ruby Copper Company, Colwell Arba Pierce

Professional Degree Theses

"The property of the Ruby Copper Company is located in Township 21 S., Range 15 E., near the southern end of the Santa Rita Mountains, Wrightson Mining District, Santa Cruz County, Arizona. It is reached by a good wagon road from the town of Pantagonia, which, because of its location on the Benson to Nogales Branch of the Southern Pacific Railroad, is the supply point for a large mining section--page 1.

Notes On Mine Operations Of The American Zinc Company Of Tennessee, Homer Kent Sherry

Professional Degree Theses

"The zinc ores mined at and near Mascot, Tennessee, are found in the upper part of the Knox dolomite which according to Keith was laid down in the middle Cambrian or Silurian age. This formation has a thickness of several thousand feet and is composed of layers of dolomite, limestone, sandstone, shale and some chert. The ore bearing portion at least is much folded with minor faulting and high brecciation. The axis of the folds lie Northeast by Southwest with the faulting in the same direction. The ore being mined is found on the Southeast dip in a fairly definite …

A Report On "La Cotabambas Auraria" Mining Company, Hector Julio Boza

Professional Degree Theses

"The present report, relative to the studies on the value of Cochasayhuas and descriptive of what was discovered and worked by me in that mining district, is written in fulfilment [sic] the commission which was entrusted to me at the begining [sic] of the month of April last. Special circumstances give to the studies made and conclusions formed a certain and appreciable value. There already existing in the Company's works various crushing machines and small tanks for cyaniding, I was able to see in great part the results of my tests with the metal in the chemical laboratory, in the …

Report On The Lucky Bill Mine, Bayard, Grant County, New Mexico, Walter Gammeter

Bachelors Theses

"The Lucky Bill Mine is located, with reference to the Mining Districts of the State of New Mexico, in what is known as the Central Mining District. The Central Mining District includes the Sant sic Rita and Hanover regions in the north and eastern portions and camps within a radius of about six miles about the town of Central in other directions. The mining districts bounding the Central District are on the north the Georgetown District, on the west and south the Silver City District and on the east the Hillsborough District"--Location of the Mine, Page 1.

Notes On The Development Of The Flotation Process For Concentrating Copper And Iron Sulphide Ore, Holman Thompson Marshall

Bachelors Theses

"The first flotation machines was installed at the Magna Mill of the Utah Copper Co. in August and September, 1914. The outbreak of the war in Europe having made necessary the shutting down of the Arthur Mill of the same company, the flotation plant was installed at Magna for the purpose of carrying on experiments which had been in process at Arthur. Enough experimentation had been done with the small laboratory machine at Arthur, and results obtained were favorable enough to warrant the installation of a full size Janney machine"--page 1.

Problems In Flotation, William Henry Mccartney

Bachelors Theses

"Little has been done to classify oils on the basis of their action as flotation agents, either for their frothing or their selective qualities...This investigation was undertaken chiefly to aid in effecting such a classification"--page 3.

The Development Of A Copper-Silver Ore Body, Colwell Arba Pierce

Bachelors Theses

"During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagonia, Arizona, and it was suggested that a review of this work, with costs and data, would be helpful to other engineers engaged in similar enterprises"--Introduction, page 2.

The Cyaniding Of A Mexican Silver Ore, Homer Marvon Wilson, Roy Watson Griffin

Bachelors Theses

"The purpose of this thesis is to determine whether or not a certain Mexican silver ore is amenable to cyanidation"--Purpose, page 1.

A Study Of The Stoping Efficiency And Ore Transportation Of The Arizona Copper Company At Morenci, Arizona, Robert Stanley Burg

Bachelors Theses

"The purpose of this paper is to give a description of the most important mining operations of the Arizona Copper Company at Morenci, Arizona, during the years 1911, 1912 and 1913. This work was planned in the engineering department by the mine superintendent, Mr. John Kiddie, while the author was employed in his office as chief mine surveyor from November 1911 to September 1913. As in other mining districts of the southwest, the rich contact and pocket, copper deposits in the Clifton-Morenci district have been nearly exhausted, necessitating the development and extraction of the low-grade porphyry deposits"--Introduction, Page 1.

The Relation Of The Composition Of Petroleum To Its Origin And Occurrence, John Warder Shotwell

Bachelors Theses

"Petroleum Is a mixture of hydrocarbons. It is a liquid varying from colorless, through yellow and brown to black. It varies from 1.0 to 0.80 in specific gravity, which corresponds to 10° to 45° Beaume. It varies widely in physical properties, such as viscosity, ignition point, polarization of light, etc. Chemically it is composed essentially of carbon and hydrogen, but usually contains impurities such as sulphur and nitrogen. The carbon and hydrogen combine with each other to form certain series, or "chains"--Chemical and Physical Nature, page 1.

An Efficiency Test Of A Laboratory Fan, Daniel Webster Blaylock, Edward Albrecht Schroer, Elton Arthur Miller

Bachelors Theses

"The principal object of these tests is to determine the efficiency of the fan when working against the different sized orifices at various speeds and pressures. Before this could be accomplished, the coefficients of discharge of the 18 in., 24 in., and 30 in. orifices had to be determined"--Object of Tests, page 4.

Effect Of Compression And Transmission On The Illuminating And Heating Value Of Carburetted Water-Gas, Horace Herbert Clark

Bachelors Theses

"The object of this series of tests was to determine the effect of compression upon the candle power of carburetted water gas, as made in the daily operation of a three piece water gas machine, cooled in condensers, passed through shavings, scrubbers and oxide material, and thence into a storage holder, ready for compression and distribution. The apparatus consisted of a small Westinghouse air compressor; nine storage tanks of six inch wrought iron pipe; transfer pump; pressure regulator; standard one hundred inch bar photometer, complete, with regulators, clock, meter, pentane lamp, etc., gas analysis outfit, complete; also gages, thermometers, etc."--Page …

The Seneca-Superior Mine And Mill, Maurice Merton Albertson

Professional Degree Theses

"The Seneca Superior Mine lies under Cart Lake which is located about a mile south of the city of Cobalt. It was discovered by crosscutting during the year 1912 and although it is one of the smaller properties of the Cobalt district it has been, and continues to be, a large producer"--Description of the Seneca Superior Mine, page 1.

The Method Of Mining And Milling At The Rosiclare Lead And Fluor Spar Mines, Arthur Harrison Cronk

Professional Degree Theses

"The American fluor spar mines of economic importance are located in the Southern part of Illinois and Western Kentucky. The largest mines are in Hardin County, Illinois, Those in Kentucky are in Crittenden, Livingstone and Caldwell Counties. At the present time the Illinois mines are the largest producers. The two principal mining companies in operation are: The Rosiclare Lead & Fluor Spar Mines and the Fairview Fluorspar & Lead Mines. These mines are located about a half mile from Rosiclare which is on the Ohio River"--Location, page 1.

The Development Of A Process For The Treatment Of A Complex Ore, Charles Adrian Burdick

Professional Degree Theses

"The writer has carried out tests to determine the most feasible method of treating a complex ore from Tecolote, Sonoro [sic], Mexico. The ore contains gold, silver, copper and zinc"-- Introductory, page 1.

Engineering And Geological Work At Cananea, Mexico, Edward Dale Lynton

Professional Degree Theses

"The purpose of this thesis is to relate in as clear and concise a manner as possible the way "things are done" in practice as observed by myself during my two years' experience as sampler and assistant geologist to the Cananea Consolidated copper Co. of Cananea, Sonora, Mexico. My work took me to all the mines, and in this way I was able to accurately observe the sampling, system of mining, geology, etc. of this famous and important camp"--page 1.

An Investigation In Treating A Gold Ore From Custer, South Dakota, Theodore Saunders Dunn

Professional Degree Theses

"The following investigation was undertaken to determine the adaptibility [sic] to amalgamation and cyanidation of a certain ore from the property of Mr. Charles Bush near Custer, South Dakota. A preliminary sample of the ore was obtained and laboratory tests made upon it. A ton lot of the ore was then put through the ore dressing laboratory at the South Dakota School of Mines. Upon examination the large sample was found to differ in value and to some extent in character from the preliminary sample, but the scheme of treatment worked out for the first sample was found to work …

Geological Mapping Of An Area Along The Frisco Railroad Between Cuba And Saint James, Willard Miles Benham, William Elliott

Bachelors Theses

"The chief object of the work has been the location of the Roubidoux-Jefferson City contact, if it occurred within a mile of the railroad. Distances and positions along the track were obtained by the use of a map and by counting telephone poles. Other locations were made by obtaining their bearing and distance from these points by the use of a compass and by pacing. Elevations were carried by aneroid barometers, using the railroad elevations at mile points as bench marks. An attempt has been made to locate all important outcrops; but these are shown only on the field map. …

Comparative Tests Of Piston-Drill Bits, Lister Merriken Cummings

Bachelors Theses

"The purpose of this investigation is to compare the relative cutting speeds and efficiency of some of the different types of rock drill bits used in the piston machine, including the regular cross bit, the low center cross bit, a so-called "flat" cross bit, the "Z" bit of the southeast Missouri type, and the Joplin "Bull" bit"--page 2.

The Efficiency Of The Kerruish Smoke Consumer And Coal Economizer, Arthur F. Truex, Gilbert F. Metz

Bachelors Theses

"The Kerruish Smoke consumer is the invention of Mr. H. B. Kerruish and is patented in the United States under the Patent Number 1,046,196. The tests herein shown were made for the purpose of determining the practical value of the device as a smoke consumer, and as a fuel economizer. Many forms of these devices have been put on the market, some using a steam spray, and others using air in a manner similar to the Kerruish apparatus"--Scope of the Thesis, page 2.