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Full-Text Articles in Metallurgy

Oils And Flotation, Clarence Eugene Peterson, Charles Yancey Clayton Jan 1916

Oils And Flotation, Clarence Eugene Peterson, Charles Yancey Clayton

Bachelors Theses

"We know that the sulphides, or minerals with a metallic lustre, can be floated either with or without oil and that the carbonates, silicates, etc., cannot be floated so readily. Why do certain oils have the power of selecting certain minerals? Why do certain oils produce froth? Why do certain oils give a watery froth? Why do some give an ephemeral froth and others a tough one? Of the thousands of oils known, only a few classes have found successful application in this new process...This leads us to the question, what property or combination of properties make oils valuable as …


The Effect Of Temperature Upon The Crystal Size And Physical Properties Of Iron And Steel, Earl Joesting Mcnely Jan 1916

The Effect Of Temperature Upon The Crystal Size And Physical Properties Of Iron And Steel, Earl Joesting Mcnely

Bachelors Theses

"This investigation was deemed of sufficient merit to require the work of two terms. It naturally is divided into two parts, i.e., the effect that temperature has upon the crystal size; and the effect that temperature has upon the physical properties of iron and steel"--page 3.


Leaching Experiments On An Arizona Copper Ore, Gunnard Edmund Johnson Jan 1916

Leaching Experiments On An Arizona Copper Ore, Gunnard Edmund Johnson

Bachelors Theses

"The object of this thesis was to obtain a general knowledge of the problems to be solved in leaching a typical carbonate copper ore or oxidized capping of the New Cornelia Copper Co.'s ore. The experimental work previously performed far exceeds any that might be attempted in the short time allotted to this work, and the few results obtained indicate that the ore is particularly favorable for leaching"--Scope of Thesis, page 1.


Treatment Of A Complex Ore, Earl Burdette Weiberg, Hugo Edward Koch Jan 1916

Treatment Of A Complex Ore, Earl Burdette Weiberg, Hugo Edward Koch

Bachelors Theses

"Many complex ores are found in the West, which contain zinc in large quantities together with lead, copper, gold, and silver in sufficient amounts to yield a good profit could they be separated from the zinc economically, If such an ore were sent to the smelter to be treated in a blast furnace for the recovery of lead, copper, gold, and silver the smelter would penalize the shipper for all zinc over ten percent. On the other hand if the ore were sent to a zinc smelter for direct treatment there would be a penalty for excess lead present, and …