- 업종: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A flexible, nonspinning rope; composed of concentric layers of strands of relatively fine wires, alternate layers of strands being wound in opposite directions over a hemp core.
Industry:Mining
A flexure fold in that the mechanism of folding is slip along bedding planes or along surfaces of foliation. There is no change in thickness of individual strata, and the resultant folds are parallel.
Industry:Mining
A flotation cell of the subaeration type. Design modifications include receded-disk, conical-disk, and multibladed impellers, low-pressure air attachments, and special froth withdrawal arrangements.
Industry:Mining
A flotation collector agent of the general formula X<sub>2</sub>N.CS.SM , X being hydrogen, aryl, or alkyl radical.
Industry:Mining
A flotation machine that utilizes pulp-body concentration by the agitation froth method and bubble-column action by pneumatic and cascade means.
Industry:Mining
A flotation process based on surface-tension phenomena, accelerated by means of addition to the pulp of small quantities of oil and air in minute subdivision. Only about 0.1% oil is added, and the pulp is violently agitated for 1 to 10 min. Innumerable small bubbles of air are thus mechanically introduced, which join the oil-coated particles. These are then removed in a spitzkasten. Exposure to the air after this treatment then 2010 aerates any mineral that has not already taken up its oil film, after which a second spitzkasten treatment removes this. An early name for froth flotation.
Industry:Mining
A flotation process employing anionic collectors. Anionic collectors are those in which the negative ion (anion) is the effective part. Opposite of cationic flotation, which employs cationic, or positive, ion collectors.
Industry:Mining
A flotation process invented by Jacob D. Wolf in 1903. He used sulfochlorinated or other oils and aimed to secure a high extraction with a low grade of concentrate in the first step, and by washing with hot water to concentrate the concentrate in a second step. Apparently no commercial use was made of it.
Industry:Mining
A flotation process involving the violent agitation of the pulp in cold water to which a small percentage of eucalyptus oil, about 62.5 g, is added.
Industry:Mining
