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Articles 6571 - 6580 of 6580
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The Preparation Of Zinc Chloride From Smelter Waste, Victor K. Fischlowitz
The Preparation Of Zinc Chloride From Smelter Waste, Victor K. Fischlowitz
Masters Theses
"Interest in the matter of recovering zinc from residual material attaches through the value of a practical method of recovery consistent with commercial operations. The material used in this work at the Missouri School of Mines and Metallurgy was supplied by one of the large chemical firms of Saint Louis"--Introduction, page 3.
Glucose From Corn Cobs, Barney Nudelman
Glucose From Corn Cobs, Barney Nudelman
Masters Theses
"The efforts of American chemists in recent years have been devoted largely to the utilization of our waste products...Corn cobs offer a particularly inviting field for research along this line on account of the large supply of cobs available and the variety of substances obtainable from them. One of the leaders in this branch of investigation is Dr. F. B. LaForge of the Chemistry Division of the Bureau of Agriculture, who has contributed numerous papers on the subject. In one of these, in collaboration with C. S. Hudson, he describes, among other things, the preparation of glucose, but recognizes the …
The Factors Influencing The Price Of Metals On The Metal Market, Thomas Patrick F. Walsh
The Factors Influencing The Price Of Metals On The Metal Market, Thomas Patrick F. Walsh
Masters Theses
"Every year the various engineering and industrial magazines print curves showing the rise and fall of metal stocks throughout the year. to the ordinary reader, these curves are seldom intelligible; he sees the ups and downs; he knows that the prices have risen and fallen; but he rarely knows what causes these changes -- and the curves themselves never tell. This paper tries to remedy this defect; it draws its curves, and, in the light of historical events, which it recounts, tries to determine the causes for the fluctuations in the market. it further places these factors on the curve …
The Preparation And Physical Properties Of Benzene- And Toluene-Sulphonamides, Karl K. Kershner
The Preparation And Physical Properties Of Benzene- And Toluene-Sulphonamides, Karl K. Kershner
Masters Theses
"The formation of sulphonamide derivatives is often of distinct importance. These substances are easily purified and give sharp mepting points which make them of value for identification phases of research work. Also they are of value commercially as in the production of saccharin and other similar compounds. The purpose of this investigation is to secure information on the comparative production and yield of sulphonamides, and intermediate products, formed from their respective ring hydrocarbons, as benzene and toluene. careful melting point are taken on purified products and solubility curves developed for different solvents. The latter give an interesting basis for comparison"--Introduction, …
Graphics And Its Application To The Progress And Cost Analyses Of A House Building Construction Company, Frank Lewis Leonard Wilson
Graphics And Its Application To The Progress And Cost Analyses Of A House Building Construction Company, Frank Lewis Leonard Wilson
Masters Theses
"In the graphical analyses of Stresses in Framed Structures, we study, by means of diagrams, the stability or equilibrium of structures and the relation between the external forces and the stresses created in the members of the frame. The principle involved is that we may represent any force both as to direction and intensity by a straight line, by considering the direction of the line to be identical with that of the force and adjusting its length according to any arbitrary unit adopted for the forces under consideration. By this means we can solve the stresses in framed structures with …
Ore Dressing Laboratory For The Missouri School Of Mines And Metallurgy, Rolla, Missouri: Design, Description, Drawings For Erection, Bills Of Material, And Specifications, Boyd Dudley Jr.
Masters Theses
"The work of preparing suitable drawings and specifications for the construction of the new Ore Dressing Laboratory of the Missouri School of Mines and Metallurgy was begun about August 15, 1909. At that time general plans, as shown in drawings No. 1 and No. 2, were drawn up and submitted for approvaleaf With certain minor alterations, to be mentioned under the section on specifications, these plans will be followed in the installation of machinery. Other detail drawings were made by the class in Ore Dressing Problems under the direction of the writer during the school term ending March 12, 1910. …
Design Of 300 Ton Cyanide Tailings Plant And Operation Of Same, Lamar Horacio Hunt
Design Of 300 Ton Cyanide Tailings Plant And Operation Of Same, Lamar Horacio Hunt
Masters Theses
"The plant in question was designed by the writer, to treat the immense tailings dumps of the Sacramento Gold Mining company at Mercur, Utah, consisting of one-half million tons of old cyanide tailings. The ore is porous and friable, causing much slime, which is impermeable to cyanide solution, by the old leaching system. Slime has always been troublesome, and the above plant was designed to overcome this difficulty"--page [1].
General Method Of Procedure In The Working Out Of The Uncompahgre Valley Project, Colorado, Leo J. Foster
General Method Of Procedure In The Working Out Of The Uncompahgre Valley Project, Colorado, Leo J. Foster
Masters Theses
"On the 17th of June 1902, Congress passed an act which may have appeared of little moment at that time, but which is not attracting the attention of the people of the United States. It is known on the Statute Books as the Reclamation Act and its purpose is to provide a Reclamation Fund, the said fund being used only to examine and construct Irrigation Works in certain Western States and Territories. This Act provides that the proceeds of the sale of public lands in thirteen States and three Territories, known as the Public Land States, less a deduction of …
The History And The Development Of The Cyanide Industry, Horace T. Mann
The History And The Development Of The Cyanide Industry, Horace T. Mann
Masters Theses
"The accompanying thesis is a compilation from articles published n the magazines and from books. Where no references are given, the statements are the impressions gained from reading several articles on the same subject. None of the work originated with myself"--page [ii].
Mine Opening And Timbering, George W. Cole