
WEMCO 1+1 Flotation Machines
WEMCO® 1+1® Flotation Machines feature a unique design that is demonstrably superior to other mechanical flotation systems. In direct comparisons by major mining …

US2149220A
US2149220A US128095A US12809537A US2149220A US 2149220 A US2149220 A US 2149220A US 128095 A US128095 A US 128095A US 12809537 A US12809537 A US 12809537A US 2149220 A US2149220 A US 2149220A Authority US United States Prior art keywords flotation plant precious metal unit cell metal ores Prior art date 1937-02-27 …

Compare Flotation Machines Types
The same is true of the Fagergren Machine, though the intensity of the agitation between rotor and stator is not quite so great. It has only been recently …

Fagergren Lab Flotation Wemco Style
Fagergren Lab Flotation Wemco Style, Single Phase Motor, 115 Volt, Includes 1 Glass Bowl. Equip yourself with the gold standard.

Flotation machine design: impeller—stator interaction
The values are listed in Table 1: from these, suction can be calculated over the approximate speed range 500 to 1800 rpm, provided that air is excluded from the system- Elsevier Sequoia/Printed in The Netherlands 274 TABLE 1 Values of M for various impeller/stator combinations Equipment: Flotation machine: Denver Dl_ ]Impellers: 8 …

Flotation performance analysis on coal washery rejects
Wemco Fagergren flotation machine with a volumetric capacity of 3.5 L as shown in Fig. 2 was used for flotation experiments. A total of 100 g of coal was mixed with 300 ml of water and conditioned with diesel oil (collector) in a flotation cell for 2 min. A total of 600-ml make-up water was added and conditioned further with a predetermined ...

Flotation of Insoluble Slimes from Potash Ore
Batch insol-slimes flotation tests were conducted in a Fagergren laboratory flotation cell. In each test, 1 kilogram of ore was scrubbed 5 minutes at 27-percent-solids pulp density in a saturated brine at 4.22 meters per second (830 feet per minute) peripheral impeller speed. Concentrated HCl was used for pH adjustment.

Flotation Archives
William Fagergren invented the Fagergren or WEMCO flotation cell. Fagergren licensed all but his earliest U.S. patent to the American Cyanamid Co. of New York. American Cyanamid actively promoted the Fagergren machine, and issued sublicenses to in 1937. for manufacture, distribution, and sales to applications besides ...

Flotation In Downstream Processing
Five methods to dispose the middling during the flotation process Wemco fagergren flotation machine A game-changing flotation recover upgrade package (pdf) flotation in water and wastewater treatment. Wiring and Diagram Full List. Find out User Manual and Engine Fix Collection. Menu.

WEMCO 1+1 Flotation Machines
Flotation machines, and typify all WEMCO machine sizes for 3000 to 1cu. ft. in volume. For any given machine size or rotor diameter, the air transfer pulp circulation relationship can be operationally varied by changing rotor speed and/or rotor submergence in the pulp. Increasing rotor speed at fixed submergence produces higher air transfer and ...

Flotation Machine
The original Fagergren machines (patented ca. 1920) were self-aerated and employed a horizontal impeller system (Margetts and Fagergren, 1920) similar to other flotation …

Equipment Archives
William Fagergren invented the Fagergren or WEMCO flotation cell. Fagergren licensed all but his earliest U.S. patent to the American Cyanamid Co. of New York. American Cyanamid actively promoted the Fagergren machine, and issued sublicenses to in 1937. for manufacture, distribution, and sales to applications besides ...

CLASIFICACIÓN DE LAS MÁQUINAS DE FLOTACIÓN
Autor de clasificación es Ph.D. Natalia Petrovskaya. Máquinas de flotación se clasifican según el modo de aireación y mezcla (agitar) de la pulpa, y se subdividen en los siguientes categorías:

Fagergrern (Wemco Style) Lab Flotation Machine
Equipment » Assay and Laboratory Equipment » Laboratory Flotation Machines » Fagergrern (Wemco Style) Lab Flotation Machine ID: 908973 Belt Driven by 115 Volt …

WEMCO FAGERGREN Flotation Machine
Lab sized flotation machine, Mineral-Master model made by Wemco Fagergren, size 600. Serial number 5035-60CY. Unit includes gauge, manual tilt and two agitators which …

Compare Flotation Machines Types
The same is true of the Fagergren Machine, though the intensity of the agitation between rotor and stator is not quite so great. ... No accurate comparison is possible between the power consumption of the three types of flotation machines, because it depends so much on the character of the ore treated. In the absence of …

Flotation Cell Design: Application of Fundamental …
machine used. Flotation machines, in general, may be categorized into four different classes: (i) mechanical or con-ventional cells; (ii) energy-intensive pneumatic cells; (iii) column cells; and (iv) froth separators. Of these, mechanical Sotation cells have dominated the min-eral industry since the early days of Sotation and

The flotation of chrysocolla by mercaptan
Copper recovery from the flotation of ehrysoeolla with hexyl mereaptan and potassium hexyl xanthate. To check the flotation of chrysocolla at a larger scale, a few tests were carried out with a Fagergren laboratory flotation machine having a cell volume of 2.2 1. A 5-min flotation time was used in each step.

Determine Froth Flotation Kinetics
The experiments were carried out in a Fagergren flotation machine with a glass bowl. The volume of pulp was 2400 ml. Two identical paddles were made such that each would fit snugly into the space between the bowl and the central shaft, and would dip into the froth to a fixed distance when the handle rested on the edge of the bowl.

How to Operate a Flotation Circuit
The type is represented by the Agitair, the "Level-Type" Fagergren, and the Pan-American machines, the one tail gate controls the pulp level throughout each group of cells. If you want to vary the pulp level between cells somewhere up the line, the only way is to widen or narrow the opening in the partitions between impellers.

Wemco II Flotation Cell
For decades, WEMCO flotation cells have consistently delivered the highest recovery. WEMCO II's combination of efficient aeration and optimum solids suspension not only …

Multiphase models of flotation machine behaviour
Subsequent work on the continuous flotation of coal using machines of different design performed by Jowett and Ghosh (1964} gave b = 0 for the Fagergren machine, while b ~ 0 for the Denver design. One experimental system used in some of the early work included a froth removal device which skimmed the entire froth surface …

Dithiophosphate in Selective Flotation of Galena and …
Flotations: The flotations were carried out with 200 g of mineral in a Fagergren flotation machine having a 250-g cell. The galena, sphalerite, and quartz were crushed separately to pass a 10 mesh sieve, using a gyratory crusher for the quartz and a porcelain mortar and pestle for the galena and sphalerite. Synthetic mineral mixtures …

A brief history of flotation
There are plenty more insights from the book, but colleagues at FL would be particularly interested in the 1916 invention of the Fagergren machine by Salt Lake City local William Fagergren.

Impeller speed, air, and power requirements in flotation machine scale
International Journal of Mineral Processing, 1 (1974) 51--64 Elsevier Scientific Publishing Company, Amsterdam -- Printed in The Netherlands IMPELLER SPEED, AIR, AND POWER REQUIREMENTS IN FLOTATION MACHINE SCALE-UP C.C. HARRIS Henry Krumb School of Mines, Columbia University, New York, N.Y. (U.S.A.) (Received …

Aeration characteristics of laboratory flotation machine impellers
The aeration characteristics of several laboratory flotation machine impellers have been studied paying special attention to the pressure generated by impeller rotation. ... Pressure ratio versus air flow number correlations are shown in Fig. 6 for both the Denver and Fagergren machines, and for comparison, the analogous power ratio versus air ...

OneMine | Large Capacity Flotation Cells ? Introduction
he need in the mineral industry to treat increasingly larger tonnages has caused a demand for larger installations. In order to limit the size of these installations, it was necessary to build machines with larger capacities or production output. With this aim in mind, WEMCO Division developed the No. 120 WEMCO-Fagergren Flotation Cell in 1967. These large …

Gold Flotation
Flotation machines can be classed roughly into mechanical and pneumatic types. The first employ mechanically operated impellers or rotors for agitating and aerating the pulps, with or without a supplementary compressed-air supply. Best known of these are the Mineral Separation, the Fagergren, the Agitair, and the Massco-Fahrenwald. ...

Callow Flotation Cells
Callow-Type flotation cells, with various modifications, have been employed at the Hayden concentrator since 1917. Other flotation machines, such as

Method of recovering gold from saprolite gold ores and …
The auriferous charcoal was then recovered by floating the pulp in n a Fagergren flotation machine using 0.1 lb./ton of a 50:50 mixture of sodium diethyl- and dlsecondarybutyl- dithiophosphates, 0.5 lb. per ton cresylic acid and 0.5 lb./ton of pine oil. The mana-o11m.er*arrnl1 rcn. alre c fnrllni. Original ore...