Engineering Commons^™

An Investigation Of The Fundamental Factors Affecting The Green Ball Characteristics In Pellet Formation, Thomas J. Wright

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the relative effects on the quality and characteristics of the pellets. Once the major factors effecting agglomerating materials are understood, formerly poor and nonagglomerating materials may be affected so that they will produce good quality agglomerates. Should the factors prove difficult to vary or impossible at least they may be identified and understood, thus serving as a guide for further attack or judgment in overall process design.

Identification Of Inclusions In Armco Ingot Iron By The Use Of Polarized Light, Carl A. Plate

Bachelors Theses and Reports, 1928 - 1970

It is the author's hope that by systematically investigating the inclusions in ingot iron and comparing their specific properties with the properties of substances known to exist as inclusions, a rapid and accurate method may be found to identify them using a polarizing microscope. Where possible photomicrographs will be used to illustrate the results obtained so that the reader may obtain a better picture of the effects produced by polarized light.

Electrical Methods Of Mineral Concentration, Gordon F. Ziesing

Bachelors Theses and Reports, 1928 - 1970

The evaluation of a mineral-dressing method cannot be carried out successfully without an initial understanding of the basic fundamentals and concepts governing the operation of the method. Experimentation, governed by the understanding of the basic concepts, together with intelligent conclusions based on the experimental data, complete the evaluation of the dressing method.

Electrical concentration, being the given dressing method, will be evaluated as discussed above. As they are thoroughly covered by Mora (13), the fundamental concepts will not be given a lengthy discussion.

Separation And Concentration Of Stibiconite, William Howard Painter

Bachelors Theses and Reports, 1928 - 1970

Primarily, the purpose of this study is to separate stibiconite from associated gangue minerals. The ore containing antimony, as an oxide stibiconite, occurs in Mexico and its benefication would be an advantage to the mineral resources of that country. While the deposit from which this ore is derived is American owned, the resource is presently non-economic. A concentrate must be derived of suitable grade for its use in a smelting operation and from which metallic antimony would be produced.

An Investigation Of The Effectiveness Of Certain Organic Compounds In The Flotation Of Manganese Oxide Minerals, Johannes P. Dreyer

Bachelors Theses and Reports, 1928 - 1970

This thesis has to do with the selective flotation of the manganese oxide minerals in an ore from Charco Redondo Mine, Oriente Province, Cuba. Since a sound knowledge of the nature of the emulsion-induced flotation process of these minerals does not exist, experimental research constitutes the most valuable resource for determining the extent to which different reagents influence the process. Moreover, a correlation of experimental results with the chemical and physical properties of the minerals and reagents can lead to the improvement of existing theories regarding the mechanism of a process.

Streaming Potential Studies On Rutile, Albert R. Rule

Bachelors Theses and Reports, 1928 - 1970

This investigation was undertaken to determine some of the electrokinetic properties exhibited by rutile in solutions of various electrolytes. Results presented in this thesis are for rutile in solutions of conductivity water and in potassium chloride solutions. The data obtained in this investigation are presented graphically in the body of the thesis and are tabulated in the appendix for convenience.

Stress-Induced Martensite Transformation In An Alloy Of The Copper-Aluminum-Nickel System, Gary D. Alexander

Bachelors Theses and Reports, 1928 - 1970

It was intended that the alloy be thoroughly investigated for martensite transformation that would make the alloy "super-elastic," but due to the many difficulties that arose this was not possible. Attempts to grow a single crystal from the cast alloy were not successful because of the difficulties that were encountered with the Kanthal resistance furnace (referred to later). Consequently, the growing of the single crystal was abandoned and the alloy was tested in the poly-crystalline form.

Electric Arc Furnace Production Of Standard-Grade Ferromanganese, Curtis Bates

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine an operating procedure for electric arc furnace production of standard ferromanganese. An attempt was made to determine a charge which would give steady power consumption in the furnace and at the same time keep the manganese content in the slag to a minimum.

Growth And Examination Of Calcium Single Crystals, Richard W. Roberts

Bachelors Theses and Reports, 1928 - 1970

This report is in two sections. The first section relates to a vacuum technique for growing single crystals of calcium. The second section discusses the results of an X-ray examination of crystals of zinc by the back reflection Laue method.

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.

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.