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Mar 07, 1989· 209/164, 209/166, 209/167, 209/1, 210/709, 210/744, 210/104, 210/86, 210/101, 210/202 . View Patent Images: Download PDF PDF help. US Patent References: ... Fine coal along with a frother and possibly a collector such as fuel oil is added with water to a froth flotation cell. Aeration of the resulting slurry causes the formed bubbles to ...
In coarse coal flotation, special reagents are used such as high molecular weight frothers, the collector with a nonionic, low emulsifier, Sherex Shur Coal 159 or Sherex Shur Coal 168 blended with fuel oil No. 2. These reagents in liquid forms are directly added into the coal pulp in themore »
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n 1930, 3, 400 square feet of Mitco were installed in a coal ocket at Jersey City y The Delaware, Lackawanna and Western Coal Com pany. Walkway and ramp — part of an installa tion of 80,000 square feet of Mitco — Deep water Station, Penns Grove, N. J. Mitco Open Steel Flooring in a promi .
Vintage Coal or Ash Bucket Primitive Wooden Bowl Fall Decor Antique Tool Tote Wooden Tool Box Vintage Wood Caddy Large Tool Tote Remington Shur Shot Wood Box Crate Bartlett Pear Fruit Crate . Vintage Wooden Box Wood Fruit Crate Vintage ... Vintage Coal or Ash Bucket ...
is mixed with water and chemicals known as frothers or flocculants to separate coal from refuse and then dewatered using vacuum These chemicals include 4methylcyclohexanemethanol (MCHM), the chemical that spilled in West ia, and ShurCoal 162, one of several patented frothers used at Coarse coal is cleaned by heavy
Frothers 21 Regulators 25 Activators 27 Depressants 29 ... Chemical comminution 164 Ultrasonic vibration 170 Microbubble Flotation 174 Microbubble flotation phenomena 175 ... Although Iowa coal floated very slowly and Incompletely with only a frother (methyl Isobutyl carblnol or MIBC), It floated rapidly when a ...
In this work, the performance of frothers in a threephase coal flotation was evaluated and related to the watercarrying property in a twophase system. ... and Fuel Oil/Shurcoal (2027), on ...
Aug 01, 2020· The experimental system for the aeration rate and coal flotation used in this study is schematically shown in Fig. main components are: (1) a feed tank for preparing solution and for gathering overflow and underflow, (2) a pump for pressurizing the solution to the flotation column, (3) a flowmeter connecting to the pump for controlling the flow rate, (4) a nozzle for forming highspeed ...
Fording Coal Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Fording Coal Ltd filed Critical Fording Coal Ltd
shur coal 164 frother . derilict and ownerless coal mines in south africa many coal mines in south africa Coal Mining in South Africa – Universal Coal plc Coal production in South Africa is concentrated in large mines with 8 mines accounting for 61 % of the output About 46 5 % of the country''s coal mining is underground and 53 5 % Benton ...
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Investigating the high frother (MIBC) consumption at Century Mine (Australia), Gredeji et al. [102] found that the bulk of MIBC was adsorbed onto ore particles, especially the fine carbonenriched (, hydrophobic) particles. Likewise, Allum and Whelan [103] reported that twothirds of frother added was taken up by coal during flotation.
An adequate dosage of frother (secoctyl alcohol), 200 g/t, was chosen to generate enough bubbles for the flotation of coal particles. No collector is added to keep unanimous with other tests. During the flotation process, six concentrates were collected at 15, 30, 60, 120, 180, and 300 s and placed into separate containers.
ShurCoal 162 frother is a patented glycol ether alcoholtype frother. Although this frother is only slightly soluble in water, it has a high degree of dispersion in is use in coal flotation for use in both column cells and conventional, mechanical flotation cells.
Metallurgical ContentFrothers behaves as SoapFrothing ReagentsSURFACE TENSIONCreating a Froth for FlotationTesting Frother Performance The next reagent that is added is the Flotation FROTHER. The frother strengthens the surface tension of the air that is injected into the flotation cell. As the air rises in the shape of bubbles, they come into contact with the mineral laden collector which ...
CAC CAA CAA CAC CA C CA C CA C CA A CA A CA A CA A CA A CA A CA C CA C CA C Authority CA Canada Prior art keywords coal oil slurry process particles Prior art date Legal status (The legal status is an assumption and is not a legal .
The high intensity of the Jameson Cell means that it is much shorter than conventional column flotation cells (see Figure 1), and it does not require air compressors to aerate the suspension of ground ore particles and water (known as a slurry or pulp) in the flotation cell. The lack of a requirement for compressed air and the lack of moving parts means that power consumption is less than for ...
1 INTRODUCTION. Many coals in southwestern China are characterized by a high sulfur (S) content. 1 These high‐S coals are usually enriched with uranium (U). 2 Uranium is a naturally radioactive element, and the ultrafine particles released from U‐rich coals during combustion can have potentially adverse effects on human health. 35 Coal preparation is one effective approach to reducing ...
The primary category of frothers used in coal/ sulfide mineral flotation is the nonionic or neutral frothers that do not specifically act as collectors. The three main groups of neutral frothers are alcohols, alkoxytype materials, and the propylene glycol ethers. Experimental Procedure. The coal tested was a bituminous Pittsburgh Seam coal.,
Aug 01, 2020· Central Greenland temperature reconstruction (Alley, 2000) The Bølling–Allerød interstadial featured a sharp rise in atmospheric carbon dioxide (possibly >400 ppm according to at least one plant stomata study) and Central Greenland temperatures as warm as the Little Ice Age.. While impact events and/or volcanic eruptions certainly could have played a role in Late Pleistocene to Early ...
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theDumacol coalshowing significantly better ashliberation characteristics thantheLandau coal. ... Collector Frother Test Yield Ash Yield Ash kglt glt 20 60,1 12,8 17,1 22,1 1,0/1,0 100/100 ... 148 1,51 156 160 164 meanrelativedensity JOURNAL OFTHE SOUTH AFRICAN INSTITUTE MINING AND METALLURGY
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