Engineering Commons^™

The Identification Of Montana Clays By X-Ray Analysis, David Stephen Malyevac

Bachelors Theses and Reports, 1928 - 1970

The purpose of this study is to identify the various Montana clay minerals by means of X-ray diffraction. The ultimate aim of this investigation is to identify the different clay mixtures through an analysis of their respective diffraction patterns, and diffraction patterns obtained after various chemical and thermal treatments.

The Identification Of Montana Clays By X-Ray Analysis, George Mason Maxwell

Bachelors Theses and Reports, 1928 - 1970

This thesis is to be written with the assumption that the reader is familiar with the more elementary facts of X-ray crystal analysis, such as the production and properties of X-rays, and the Bragg reflection law.

The purpose of this paper is to report on the investigations carried on to find some relatively simple means of identifying Montana Clays.

The Mono-Rail Timber Transfer, James D. Wallace

Bachelors Theses and Reports, 1928 - 1970

My report covers the desire and need for a practical machine of this type to save labor, time and fatigue in underground timber transportation. A design is suggested including description, sequence of operation, design details and calculations.

Electrolytic Refining Of Copper By The Series System, Jerome Yopps

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis investigation was to determine the characteristics of the series system of electrolytic refining of copper.

Metallurgical Applications Of Polarized Light, Kenneth R. Evans

Bachelors Theses and Reports, 1928 - 1970

Very little has been written concerning the theory of the metallurgical polarization microscope. Records of metallurgical studies utilizing this instrument are widely scattered among the literature, and are mostly material of an uncoordinated and irrelevant nature. It is the feeling of the author that a coordinated investigation of the metallurgical applications of polarized light will yield results providing the metallurgist with another means for the study of metals and their properties.

Back-Reflection Camera, Charles T. Burtch

Bachelors Theses and Reports, 1928 - 1970

The following paper is a record of the procedure used to construct a back-reflection camera. It will also discuss the difficulties encountered and some of the methods used to eliminate or reduce them.

The Application Of Amalgam Metallurgy To Copper, Barry J. Hansen

Bachelors Theses and Reports, 1928 - 1970

The object of this investigation is the application of "Amalgam Metallurgy" to the extraction of copper from its ores. "Amalgam Metallurgy" as defined by Hohn is the use of liquid mercury in the extraction of metals. The ore under study was from the Kelly Mine in Butte, Montana and contains about 1.0% copper of which about 0.1% is acid soluble.

Production Of Standard-Grade Ferromanganese In An Electric Arc Furnace, John P. Hager

Bachelors Theses and Reports, 1928 - 1970

The original purpose of this thesis was to determine the feasibility of producing standard-grade ferromanganese from the Cuban concentrates using an electric arc furnace. This purpose was later changed since it became necessary to study the adequacy of a laboratory electric arc furnace for comparability with commercial operations.

Since the original purpose of the investigation had been changed while the area of investigation had not, the research work was then continued with the purpose of collecting information on ferromanganese production as a background for anticipated future work in pyrochemical research at the Montana School of Mines.

Ferromagnetism In Some Alloys Of The Copper-Manganese-Tin System, Leonard W. Boyd Jr.

Bachelors Theses and Reports, 1928 - 1970

The specific purpose of this investigation is to study the effects of heat treating at various temperatures for different lengths of time, with special attention paid to changes in magnetization. Identical heat-treating conditions were used on several different alloys, the compositions of which are such that some specimens are in the single-phase beta prime and beta regions, whereas others are in two-phase regions. For this investigation, only magnetic measurements will be attempted.

A Portfolio Of Advanced Mining Equipment Ideas, George L. Wilhelm

Bachelors Theses and Reports, 1928 - 1970

This paper presents a series of idealized sketches and accompanying descriptions of mining equipment. The ideas contained herein apply broadly to the mechanization of underground mining and development. Considered here are new techniques of material handling, drilling, mucking and rock transportation.

The Effects Of Acid Concentration On The Current Efficiency During The Electrolysis Of Zinc Sulfate Solution, Jon Langfeldt

Bachelors Theses and Reports, 1928 - 1970

The current efficiency during the electrolysis of zinc sulfate solution and the various factors that effect the current efficiency are major considerations of this industrial process. The factors affecting current efficiency-- temperature, current density, presence of impurities, time of electrolysis, hydrogen overvoltage, smoothness of the deposit, and acid concentration of the cell solution-- are controlled to the extent that current efficiencies of 90-93% are not uncommon in the industrial electrolytic zinc process. However, additional investigations of the effects of these various factors upon current efficiency are warranted, because of the endless search by the non-ferrous metal industries for additional information …

Attrition-Flotation Of Low-Grade Cuban Manganese Tailings, Donald E. Zipperian

Bachelors Theses and Reports, 1928 - 1970

The primary objective of this project was to develop a process that would yield a salable product from the manganese tailings and to evaluate the economical gain that might be achieved from such a venture. From the nature of the tailings and early flotation research, it became apparent that selective flocculation and subsequent gathering of the manganese-oxide minerals into agglomerates was the key factor to be considered in the flotation testing.

The Zone-Refining Of Aluminum With Copper As The Major Impurity, Arlan Edward Rathke, Russell E. Hoar

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to report on the investigation of the possibility of removing impurities from the two important light metals, aluminum and magnesium, by applying the principles of zone-refining. The impurities in these metals are namely iron, silicon, and copper, which is the main impurity. Copper and iron come from the reduction cells, while silicon is introduced during the preparation of the material for the reduction bath.

A Study Of The Chemical Factors Affecting The Rheological Properties Of A Quartz-Bentonite Suspension In Water, Harold Bruce Treweek

Bachelors Theses and Reports, 1928 - 1970

Frequently, difficulties are encountered with mineral pulps in a mineral-processing plant, which are not alleviated or minimized by the application of such simple measures as varying fineness of grind of solid material, changing pulp density, or altering equipment operation (within practical limits). The basis of the difficulty in such a situation may be found in the very nature of the pulp-- its flow characteristics and behavior. Recognition of the problem followed by one-point viscometric measurement to determine fluidity can lead an operator to erroneous conclusions. Underlying this difficulty is the lack of technical literature concerning the application of ion exchange …

The Extraction Of Titanium From Titaniferous Magnetite, Roger N. Dokken

Bachelors Theses and Reports, 1928 - 1970

The titanium in the titaniferous magnetite under study, as well as most other titaniferous iron ores, is so intimately associated with the iron that liberation cannot be achieved by mechanical means.

It is obvious from the preliminary investigations that some chemical means must be utilized from efficient extraction of the titanium. Two possible pyrometallurgical methods for this extraction are either soda sintering or direct smelting.

The Zone-Refining Of Aluminum And Magnesium With Copper As The Major Impurity, Russell E. Hoar

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to report on the investigation of the possibility of removing impurities from the two important light metals, aluminum and magnesium, by applying the principles of zone-refining. The impurities in these metals are namely iron, silicon, and copper, which is the main impurity. Copper and iron come from the reduction cells, while silicon is introduced during the preparation of the material for the reduction bath.

The Reduction Of Chromium Oxide In A Vacuum Furnace, Raymond W. White

Bachelors Theses and Reports, 1928 - 1970

Interest in vacuum metallurgy has grown considerably in recent years. High vacuum techniques are of fundamental importance as research tools in defining the properties of pure metals, in the extraction and processing of reactive metals, and are becoming increasingly important in commercial metallurgical processes. Much of the work described in recent literature has centered on applications of vacuum to commercial annealing, degassing, distillation, and melting and casting processes.

The East Helena Plant Of The American Smelting And Refining Company, Raymond W. White

Bachelors Theses and Reports, 1928 - 1970

The East Helena plant of the American Smelting and Refining Company is a custom lead smelter. The chief product of the smelter is lead bullion, although by-products such as matte, speiss, cadmium-rich fumes, and zinc-rich slag are also produced. While the smelter is old, many of the methods used are new, some of which have been developed at the plant.

The Heat Treatment Of An Eight Percent Manganese-Titanium Alloy, Robert Alden Loucks

Bachelors Theses and Reports, 1928 - 1970

The subject of this particular investigation, manganese titanium alloy, has a sufficient amount of manganese present to retain beta upon quenching from the alpha plus beta or beta ranges. Thus, improvement of properties of this alloy is possible by selective heat treatments.

The Design And Construction Of A High-Temperature X-Ray Sample Holder For Use With The Norelco Diffractometer, Jerry F. Koon

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to describe the design and construction of a sample-holder for high-temperature x-ray diffraction work. This sample-holder will be used in conjunction with a Norelco Diffractometer. Design of this attachment is such that it will meet certain limitations, which will be presented in detail, offered by the diffractometer.

The Effect Of Antimony And Cobalt On The Current Efficiency And The Grain Orientation Of Deposits During The Electrolysis Of A Zinc Sulfate Solution, Samuel A. Worcester

Bachelors Theses and Reports, 1928 - 1970

Preparation of solutions and apparatus and experimental procedure was described. The effect of antimony and cobalt in a zinc sulfate electrolyte upon current efficiency with increasing time was determined by the hydrogen evolution method. The degree of preferred orientation of grains in the electrodeposits was determined by the reflection method of X-ray diffraction.

The Beneficiation Of A Low-Grade Uranium Ore, Frank P. Howald

Bachelors Theses and Reports, 1928 - 1970

The uranium in the Sponsor's Ore was proven amenable to the standard hydrometallurgical processes-- the acid leach and the carbonate leach. From an economical standpoint, the results of the heap-leaching and flotation studies were not favorable because of low recoveries. The possibility of employing an emulsion-induced selective flocculation flotation procedure still exists.

Artificial Rhodonite: It's Synthesis And X-Ray Diffraction Powder Pattern, Frank E. Jeniker

Bachelors Theses and Reports, 1928 - 1970

This report presents the investigation of three methods of synthesizing artificial rhodonite; fusion of silica and manganese dioxide, prolonged sintering of the compact of manganous carbonate and silica at below liquidus temperatures, and the precipitation by reaction of salts in an aqueous solution followed by sintering. In each case the rhodonitic product was of less than desired purity, containing varying amounts of silica, tephroite, and higher valence oxidized manganese forms, as well as aluminum.

The Vacuum Desulphurization Of Copper Mattes, Robert L. Trevison

Bachelors Theses and Reports, 1928 - 1970

The first application of vacuum techniques to the metallurgical industry was made in the early part of this century by Rohn, a German, who developed vacuum technology to a production status in the specialty metals business. Although extensive use of vacuum processing technology was made in the lamp and electrical industries, the methods used were considered to be impractical up to about ten years ago even though remarkable improvements were made during World War II. Wartime demands for magnesium and for uranium which necessitated the use of a high vacuum in their production led to the perfection of mechanical pumps, …

Description Of Sand-Water Pumping Experiment And Preliminary Photographic Investigation, Allen F. Westerdahl

Bachelors Theses and Reports, 1928 - 1970

The objective of this report is threefold: to provide a brief description of the Sand-Water pumping experiment; to describe the flow of sand and water in the experimental equipment; and to present the results of a preliminary photographic investigation of fluorescent minerals in clear plastic pipes.

Cost Comparison Of Planer Mining And Open-Stope Mining Of Phosphate Rock, George Krempasky

Bachelors Theses and Reports, 1928 - 1970

This paper outlines and describes a proposed mining method and its cost. The object of the paper is to evaluate a low-cost, maximum recovery, underground mining method for mining Western phosphate rock as compared to an open-stope system.

Shaft Mucking Investigation Part 2, Jorge R. Delzo

Bachelors Theses and Reports, 1928 - 1970

By use of several digging principles, such devices as scrapers, clamshells, power shovel loaders, etc., have been perfected. The net results have been an almost complete elimination of hand mucking, an increase of loading speed, and a reduction of sinking costs. Moreover, the elimination of hand mucking has had a favorable psychological effect on the crew, as well as saving physical effort for the other phases of the shaft-sinking cycle.

Diamond Drilling Equipment, William R. Cox

Bachelors Theses and Reports, 1928 - 1970

Diamond drilling is based on the extreme hardness of the diamond enabling it to cut or abade rocks, minerals or other materials found in the earth's crust, or that may be manufactured by man.

Design Of A Portable Headframe, Rodney C. Foster

Bachelors Theses and Reports, 1928 - 1970

Present day methods of ore exploration consists of surface geology, geophysical methods and drilling datum. These methods have all produced results, but, the sure way of telling whether ore is present is to look at it in place, determine it's tonnage, grade and ease of mining. This can only be done by the use of a headframe to sink a shaft. Therefore a low cost, well designed and easily constructed headframe would be a great aid to underground exploration work. For this reason the report is devoted to the design of a portable headframe to be used in preliminary ore …

Open Pit Mining Operations, James A. Simon

Bachelors Theses and Reports, 1928 - 1970

This report on open pit mining operations will discuss: the history of open pit mining, factors important in the selection of open pit mining and in the development of an open pit, and the various mining and operational methods used in this type of an operation. Stripping coal mining operations will be discussed but the majority of the report will be on open pit metal mines.