Materials Science and Engineering Commons^™

The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers

Bachelors Theses and Reports, 1928 - 1970

The subject to be covered by this paper is based upon field study made during a six week stay at Jardine. The work began on June 19, 1937 and ended on July 31 of the same year.

A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson

Bachelors Theses and Reports, 1928 - 1970

This investigation, carried on in the metallur­gical laboratories at the Montana School of Mines, was undertaken with the desire to work out a rapid method for the estimation, or the determination, of the amount of lead in zinc.

The Electrodeposition Of Manganese From Certain Aqueous Solutions., William C. Wallace

Bachelors Theses and Reports, 1928 - 1970

Manganese has been successfully electrodeposited from aqueous solutions in past years by several work­ers in electrochemical and electrometallurgical fields.

The present work was concerned, primarily, with investigation of electrodeposition from solutions which are commercially obtainable from the hydrometallurgical or pyrometallurgical treatment of the low grade mangan­ese deposits of this country.

The Geology Of The Southern Central Portion Of The Morrison Cave Area., Arthur Talpt

Bachelors Theses and Reports, 1928 - 1970

Morrison Cave is located about 50 miles southeast of Butte, Montana. It was named after the man who discovered it. Later it was taken over by the State and renamed Morrison Cave State Park. Recently the government with the aid of the Civilian Conservation Corps has built a new road to the cave and has made the interior more accessible. The name of the cave is now Lewis and Clark Cavern National Monument.

Laboratory Concentration Of A Lead-Zinc-Fluorspar Ore From Southern Illinois, Shiou-Chuan Sun

Masters Theses

"The purpose of this investigation was to ascertain the feasibility of preparing marketable products from a rather complex sulphide-fluorspar ore"--Object, page 2. "The ore was examined exhaustively by chemical, microscopic, and mineralogical methods of analysis. After a thorough knowledge of the physical characteristics of the ore had been obtained, flotation concentration tests were made to separate the sulfide minerals from the fluorspar and to attempt to prepare lead-zinc and fluorspar concentrates of marketable grade"--Scope of Work Done, page 2.

The Control Of The Grain Size Of Tin., Robert D. Macdonald

Bachelors Theses and Reports, 1928 - 1970

The tin alloys of tellurium are extremely hard and have very great tensile strength. It was thought that the reduction of the rate of grain growth of tin with the addition of tellurium accompanied this hardening and strengthening and such way found to be true.

The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater

Bachelors Theses and Reports, 1928 - 1970

It has been proven that cadmium forms a very satisfactory plate on steel, which has to withstand severe corrosion, especially the corrosion of sea water and spray. The metal is now successfully plated electrolytically from cyanide solutions, but wherever work is carried on with cyanide, there is great danger of poisoning to the workers.

The Inhibitory Effects Of Carbonaceous Materials On The Cyaniding Of Gold Ores., David Currie Jr.

Bachelors Theses and Reports, 1928 - 1970

Carbon and carbonaceous material have been known to have a deleterious effect upon the cyanidation of gold and silver ores since the very beginning of the process. Organic matter is a common source of impu­rities in cyanide solution, its reducing effect being notorious.

The Electrical Conductivity Of The Copper-Aluminum Alloys., William W. Hintalla

Bachelors Theses and Reports, 1928 - 1970

Among the many aluminum alloys which have been studied are the binary copper-aluminum alloys. These have proven to be among the most useful of the alumi­num alloys thus far worked upon.

The Effect Of Temperature On The Rate Of Dissolution Of Gold In Cyanide Solutions Which Have A Constant Oxygen Content., Robert Currie

Bachelors Theses and Reports, 1928 - 1970

Since the development of cyanidation into a highly efficient process for treating gold ores, many papers have been written on its various aspects. Although, there has been much work done on it, the chemistry of the reaction is not yet completely understood.

The Presence Of Rhenium In Montana Manganese Ores., Henry E. Swanson

Bachelors Theses and Reports, 1928 - 1970

Rhenium properties offer many interesting possibilities, therefore any ores containing rhenium would be of considerable value. Its close relationship to manganese in the periodic table led to the belief that manganese ores would be an excellent place to search for the metal. Investigation of the literature of rhenium revealed that no ore was known to contain more than 0.001 per cent of rhenium.

The Electrowinning Of Copper From Roasted Sulphides, Thomas B. Linn

Bachelors Theses and Reports, 1928 - 1970

A hydrometallurgical process for the recovery of copper from flotation concentrates has long been con­sidered an attractive possibility. The object of such a method is to produce electrolytic copper without resorting to expensive matte smelting and converting.

Electrolytic Recovery Of Copper And Zinc From Brass, D. H. Swank

Bachelors Theses and Reports, 1928 - 1970

The purpose of this research was to continue the work of Thomas Parker, who worked on the recovery of copper and zinc from brass during the school year l934 - 1935. Since there is such a wide variety of brasses made with usually a third alloying constituent, remelt­ed scrap is suitable only for castings of wide tolerance in specifications.

Geology Of The Tuxedo Mining District, R. W. Lawson, B. R. Tarrant, A. L. Gallagher

Bachelors Theses and Reports, 1928 - 1970

The Tuxedo mining district lies fifteen miles west of Butte on the south east end of Deer Lodge valley. Prospecting and mining has been carried on in this district for about 20 years. As a result many pits have been dug, several adits have been driven, and two or three shallow shafts have been sunk.

The Deposition Of Monomolecular Films., Albert Wilbur Schlechten

Bachelors Theses and Reports, 1928 - 1970

The formation of monomolecular films is possible because of the action of the heteropolar molecules of certain fatty acids, especially stearic. Under the proper conditions the acid will spread out until a monomolecular film is formed.

The Development Of A New Process For The Manufacture Of Insulating Refractories, Miles E. Tyrrell

Bachelors Theses

"In as much as the grinding of insulating brick to size after the firing operation is one of the most important and at the same time one of the most expensive operations involved in their manufacture, it was felt that the development of a method for manufacture of insulating brick which would do away with the necessity of grinding after firing would be a very worth while project. With this object in mind it was decided that the logical method would be to incorporate the pore structure in the mix while green and at the same time to add some …

A Comparison Of Silicates Of Sodium And Potassium As The Bonding Agent In Cold-Set Refractory Cements, Kenneth Frederick Sheckler

Bachelors Theses

"The insistent demand for higher grade refractories has resulted in the manufacture of a product which will withstand higher temperatures, have greater slag resistance, greater resistance to spalling action and deformation under load. These better grades of refractory materials have been developed as the result of extensive research on the part of the manufacturers. In order that these higher quality refractories may be employed with the best results, it is necessary that they be set with a refractory cement which also possesses these desirable properties. The commercial refractory cements may be divided into two classes according to their method of …

The Development Of Spinels In Two Component Coloring Oxide Systems And Their Applications As Underglaze And Overglaze Colors, Michael Edward Green

Bachelors Theses

"For many years the fact has been known that when two or more of the coloring oxides are intimately mixed together and fired, there is a reaction between the components of the mixture. Little is known of these reactions - whether they are chemical, physical or mineralogical changes in the nature of the substances. The purpose of this investigation has been to ascertain the true nature of these reactions and the effect of the changes in the two components making up the system, upon their uses as underglaze and overglaze colors as applied in the ceramic industry"--Introduction, page 1.

Pyrochemical Changes In Missouri Halloysite, Frank Joseph Zvanut

Doctoral Dissertations

"For centuries it has been known that the application of heat to a clay or a clay body produces changes that make it an entirely different substance from the original raw clay. Ever since the earliest civilizations produced crude building brick by baking formed clay bodies in the sun's rays, mankind has been speculating on the nature of the changes that convert soft, friable, plastic clays into hard, strong, non-plastic, rock-like masses. It has been only within the last two decades, however, that progress has been made in the solution of problems dealing with the resultant products in fired clay …

A Study And Application Of The Process Of Supergene Enrichment Of Silver Ores., Arthur C. Verling

Bachelors Theses and Reports, 1928 - 1970

In many deposits of silver ores the grade of the ore de­creases considerably a few hundred feet below the surface. It is believed that in many cases the better ores owe their richness in part to the process of sulphide enrichment. It is recognized, however, that many rich silver ores are hypogene deposits that have been affected very little, if any, by processes of enrichment.

The Extraction Of Manganese From Manganese Flue Dust., John Raymond Moore

Bachelors Theses and Reports, 1928 - 1970

It is estimated that 90 to 95% of the world’s consumption of manganese is used in the steel industry in the form of either ferromanganese or spiegeleisen. The remainder is used in the form of either salts or oxides, chloride, dioxide and monoxide.

A Study Of The Effect Of Oxygen On The Rate Of Dissolution Of Gold In Cyanide Solutions., John A. Cook

Bachelors Theses and Reports, 1928 - 1970

The accepted chemical reactions in the dissolution of gold by cyanide solutions require the presence of gold, cyanide, water, and oxygen. The importance of dissolved oxygen in cyanide solutions as a factor is recognized by those familiar with cyanidation. Manufacturers of cyanidation equipment realize the necessity of oxygen, as shown by the appliances they have developed which are attached to the agitators in order to saturate the cyanide solutions with air.

The Control Of The Grain Size Of Zinc, Oswald J. Wick

Bachelors Theses and Reports, 1928 - 1970

The use of zinc as a structural metal has been militated against by two of its properties, namely, its low tensile strength and its susceptibility to grain growth. The importance of these factors can be appreciated when it is realized that the tensile strength of coarsely crystalline cast zinc is 4,000 pounds per square inch, while finely crystalline cast zinc has a tensile strength of 12,000 pounds per square inch.

Contact Metamorphism In The Highlands, Frank Trask Jr.

Bachelors Theses and Reports, 1928 - 1970

On the southern margin of the Boulder Batholith, about twenty miles south of Butte in the Highland Mountains, there are many miles of contact between the igneous and sedi­mentary rocks. As two kinds of igneous rocks and many diff­erent kinds of sedimentary rock are present, it is an excell­ent place for the study of contact metamorphism.

A Preliminary Study Of Montana Copper - Nickel Ore, J. Argall Mcallister

Bachelors Theses and Reports, 1928 - 1970

Deposits of sulfides_, containing nickel and copper with associated platineferous minerals occur in the Stillwater Igneous Complex. This is a group of unusual igneous rocks situated in Stillwater and Sweetgrass counties in Montana.

Geology And Ore Deposits Of The Golden Era And Goldfinch Mines, Argenta Mining District, Montana., Glenn C. Johnston

Bachelors Theses and Reports, 1928 - 1970

This report includes the results of geological investigation of a small area in the northern part of the Argenta mining district. Approximately two square miles were mapped. The underground working of the three mines only were accessible: the Goldfinch. Golden Era, and Mayday mines.

The Effects Of Lime On The Amalgamation Of Gold., Rollien R. Wells

Bachelors Theses and Reports, 1928 - 1970

An amalgam is an alloy of mercury with other metals, and amalgamation is the art of making or forming amalgams. In metallurgical language the word is limited to the means adopted for the recovery of gold and silver from their ores by the use of mercury.

Geology Of Some Gold Deposits Of Montana, Leo Edwin Efraimson

Bachelors Theses and Reports, 1928 - 1970

Gold is one of the rarer metals in nature, and chemically it is one of the most inactive. Gold forms stable, natural compounds with few other elements, and only with metals.

A Treatise On The Use Of Insulating Refractory Brick In Malleable Annealing Ovens, James Joseph Offutt

Professional Degree Theses

"At frequent intervals, there is developed in the refractory field some product which serves to keep this branch of industry in line in the fast moving modern era. The advent of such materials as high temperature mortars and high alumina, super refractories provided a definite mark of progress. One of the most recent and far reaching developments was made possible by the perfection of light weight, insulating fire brick. This product filled a gap which had long been an aching void to all who had made a careful study of furnaces in an effort to obtain higher efficiency. Formerly, it …

Roofing Granules, Morris Harold Grober

Bachelors Theses

"An abundant amount of chats and clays of various kinds is available in Missouri. In the mining districts of south-eastern and south-western Missouri enormous piles of gang known as chats have accumulated. The mining companies desire to rid themselves of this accumulation and would dispose of the chats at a very low price. In northern Missouri and in the diaspore district of central Missouri suitable clays could be found which may be had for a small royalty, mining and transportation costs. Some of the requirements for roofing granules are that they have (1) a size limited by 10 and 30 …