As this paper is written, the only method for the commercial production of lithium metal is by the fusion electrolysis of LiCl-KCl mixtures, as first
For a number of years the cyclone, familiar to Americans as a dust collector, has been used as a thickener of suspensions at one of
Most iron ores treated by the R-N direct reduction process yield metallic iron products considerably lower in titanium, manganese, and chromium oxides and alkaline metal
This paper presents a theory for estimating the rate of gravity drainage of a liquid out of a sand column. Account is taken of the
A 6-ft diam core drilling machine has successfully completed seven mine shafts in Virginia and West Virginia to depths as great as 465 ft. There
The Inland Steel Company operates five underground iron mines in the Lake Superior District. The two largest of these, from the standpoint of productive capacity,
Homestake crushing and grinding-practice was completely revised during the period of 1951-1953. During the conversion, both crushing, plants at the head frames, the Ross and
A Semi-Automatic hoist has been installed at the 2966 station of the Copper Queen mine, since neither the bulk of supplies handled nor the number
Diatomite is a hydrous or opaline form of silica, commonly known as diatomaceous earth, diatomaceous silica or kieselguhr. The term “infusorial earth” has lost its
With the exception of pneumatic processes and a few special bencficiation methods of comparatively limited application, all mechanical coal-cleaning and mineral-dressing processes involve the admixture