2 edition of Froth flotation collision efficiencies in strong force fields found in the catalog.
Froth flotation collision efficiencies in strong force fields
C. L. Karr
|Statement||by C.L. Karr, L.M. Freeman, and D.E. Goldberg.|
|Series||Report of investigations (United States. Bureau of Mines) -- 9322.|
|Contributions||Freeman, L. M., Goldberg, David E. 1953-|
|LC Classifications||USBMRI#9322 1990|
|The Physical Object|
|Pagination||15 p. :|
|Number of Pages||15|
|LC Control Number||90-2281|
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Additional Physical Format: Online version: Karr, C.L. (Charles L.). Froth flotation collision efficiencies in strong force fields. [Washington, D.C.]: U.S.
Dept. FROTH FLOTATION COLLISION EFFICIENCIES IN STRONG FORCE FIELDS By C. Karr,1 L. Freeman,2 and D. GOIdberg3 ABSTRACT The U.S. Bureau of Mines is optimizing the design of an air-sparged hydrocyclone. This report summarizes the initial stage of the project-the prediction of collision efficiencies for use in a.
Froth flotation is a process for selectively separating hydrophobic materials from is used in mineral processing, paper recycling and waste-water treatment industries.
Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
Froth flotation collision dfficiencies in strong force fields numerically for a small spherical particle passing around a larger bubble in an infinite fluid under the influence of a strong force field. Collision efficiencies are determined from the calculated particle trajectories for values of stokes' number, k, between and and Author: C.
Karr, L. Freeman, David E. Goldberg. SearchWorks Catalog Stanford Libraries. Catalog start Organization (as author) United States. Froth flotation collision efficiencies in strong force fields  Karr, C.
(Charles L.) Book — iv, 10 p.: ill. ; 28 cm. Online. Google Books (Full view). A laboratory study was conducted to evaluate and compare the effectiveness of nine different frother types when used in a three-phase, continuously operating froth flotation system. The frothers included several that are commonly used in the industry (e.g., MIBC, 2EH, and F-1) as well as unique frother types (e.g., F-3).
The tests were conducted in a 5-cm diameter laboratory flotation column Author: Qingqing Huang, Xinbo Yang, Rick Q. Honaker. To participate in the Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation.
OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
Use Add Comment = to comment on someone else’s. Froth Flotation is a mineral processing process achieving solid-solid separation by taking profit of the chemical attribute leading to the possibility of selectively controlling the relative surface hydrophobicities of the various components mixed in an aqueous medium.
Froth flotation is the most common industrial process based on this approach. The term surface hydrophobicity refers to the.
Also, particle collision and detachment frequencies in flotation have been related to the turbulent energy density (Bloom and Heindel, ). In addition, the number of bubble -particle collisions.
Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used. Froth flotation Froth flotation is a common method to extract a certain type of mineral from ore while depressing the amount of undesired minerals in the extracted concentrate.
It is done by adding certain chemical reagents to selectively rendering the desired mineral hydrophobic. In a flotation cell, air bubbles then lifts the Size: 1MB. The collision efficiencies calculated as a function of particle size according to Eq.(2) are shown in Fig.
2, Fig. 3, together with the predictions of other collision two bubble diameters shown in these figures correspond to those used in single bubble flotation experiments, in conjunction with measured bubble rising velocities.
Download: Download full-size imageCited by: The tests carried out at industrial scale indicated that a strong relationship exists between the froth imaging parameters and the structural features of the froth, allowing them to be incorporated into a predictive model to give a reliable online indication of the efficiency of Cited by: The authors examine bubble rise velocity, water velocity around air bubbles, the thinning of intervening liquid films, the stability of particle-bubble aggregates, and macroscopic processes in froth.
They also survey the applicability of emerging technologies in industrial flotation deinking, wastewater treatment, flotation of plastics, and. Accounting for the froth in batch flotation tests Peter Harris 5 June CENTRE FOR MINERALS RESEARCH sulphide REAGENT RESEARCH FACILITY.
Froth stability A dynamic froth is a complicated physico-chemical system which cannot be explained by a simple theory suitable for all types of foams or froths.
There is no sharp transition from a weakly. Graphite ore collected from Hunan province, south China was characterized by chemical analysis, X-ray diffraction, and optical microscopy.
Rougher and multi-stage flotation tests using a mechanical flotation cell and a flotation column containing an additional centrifugal force field were carried out to promote its grade and economic value. In rougher flotation, both the mechanical flotation Cited by: 9.
The first commercial production of phosphate rock began in England in A wide variety of techniques and equipment is used to mine and process phosphate rocks in order to beneficiate low-grade ores and remove impurities.
The eighth chapter of this book deals with mining and beneficiation of phosphate ore. The principle and operating conditions of important parts of manufacturing process Author: Petr Ptáček.
Froth Flotation Froth flotation, which was commercially introduced in mineral industry early in the 20th century about years ago, is applied in many instances in the primary mineral industries for separations of solids.
Besides mineral industries, flotation can also be used in wineries, food factories, smelters and refineries. Flotation Science and Engineering K.A.
Matis "Discusses the origin of flotation in mineral processing, describes the application of new flotation theories, and considers various alternative techniques, including flocculation and solvent sublation. You can write a book review and share your experiences. Other readers will always be.
EPA/ June FOAM FLOTATION TREATMENT OF INDUSTRIAL KASTEWATERS: LABORATORY AND PILOT SCALE by David J. Wilson and Edward L. Thackston Vanderbilt University Nashville, Tennessee Grant No. R Project Officers Hugh B.
Durham and Donald L. Wilson Industrial Pollution Control Division Industrial Environmental Research Laboratory Cincinnati, Ohio.
A force is required to start a body in motion, slow it down, stop it, change the direction of its motion, or make it move faster. Lever mechanical device used to produce a turning motion around a .any substance that tends to flow or continuously deform when acted on by a shear force such as air and water relative velocity velocity of a body with respect to the velocity of something else, such as the surrounding fluid:with respect to the fluid influences the magnitude of the acting force and with respect to a fluid is the vector.Archimedes' principle states that the buoyant force on a fluid is equal to the weight of the displaced fluid.
To calculate the buoyant force, we use the equation buoyant force = density of fluid x volume of displaced fluid x acceleration due to a completely submerged object, the volume of displaced fluid equals the volume of the object.