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Some such successful examples are the use of magnetization roasting followed by magnetic separation to treat zinc calcines Peng et al., 2012, cyanide tailings Zhang et al., 2012, iron ore. We provide a large number of solutions for customers in more than 160 countries/regions around the world, and are committed to creating the most suitable solutions for customers. We welcome your inquiry 7/24 hours.
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This invention relates to activated carbon with magnetic properties.
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Activated carbon is used to remove any number of materials from liquids and gasses, for recovery of values or for the purification of a wide range of substances. It is used in the water, food, mining, automotive, chemicals, pharmaceutical and environmental industries. A common application of activated carbon is to adsorb ions, complexes and molecules from aqueous solutions, and the like. Accordingly, activated carbon has been used to extract dissolved metals, either to purify the water, andor to recover valuable metallic values.
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Another problem with some magnetic carbon compositions, is that their magnetic properties are not sufficiently soft. It is desired that the carbon become magnetic only during exposure to the magnetic field used to separate the carbon particles from the solution. Any residual or hard magnetism that remains only complicates the separation process since the carbon particles stick together and stick to and foul the process machinery.
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There is a need in the art for a magnetic activated carbon that has soft magnetic properties, where the magnetic property is essentially homogeneously dispersed or intimately mixed throughout the activated carbon so that even small carbon fines retain the magnetic property. This would allow recovery of the carbon, independent of the particle size and totally eliminate the need for screening. Smaller activated carbon particles even powdered could then be used to exploit kinetic and adsorption capacity advantages of small particles.
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U.S. Pat. No. 2,479,930 discloses a process of precious metals recovery from ores using a magnetic activated carbon that can be recovered from solution using a magnetic separator.
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U.S. Pat. No. 4,201,831 describes a physical mixture of a magnetic particulate material and an organic material that will decompose into elemental carbon, to produce a magnetic adsorbent composite.
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The present invention provides a magnetic carbon wherein magnetic material is intimately or essentially homogeneously dispersed through the carbon particles such that even small carbon fines are magnetic. The magnetic carbon of the invention has a soft magnetic property, and is a fine particle size magnetic activated carbon that has improved kinetic properties and adsorbs larger amounts of material per unit mass of carbon.
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Suitable porous materials include agricultural wastes that are soft and porous and allow easy impregnation of the magnetic precursor solution. These include pinewood sawdust and shavings, byproducts of lumber mills, sugar cane baggasse, a byproduct of cane sugar manufacturing, and lignin from softwoods, a byproduct of paper manufacturing. Other porous materials, such as porous plastic foams or water swellable plastic materials may also be suitable if they are capable of absorbing sufficient solution.
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Iron Ore Washing Plant Machines. Tahapan Washing Iron Ore. The Ore Washing Plant is a machine added by IndustrialCraft 2 used to convert Crushed Ore into Purified Crushed Ore Each process takes about 20 seconds and consumes 16 EUt about 6400 EU total and 1000 mB of Ore Washing Plant has an internal tank of 10000 mB. Inquire Now.
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United States Patent 3945 June 27, 1972 Lawver 54 PROCESS FOR BENEFICIATING MAGNETITE IRON ORE 72 Inventor James E. Lawver,Edina, Minn.
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A process for upgrading low-grade magnetite-containing iron ore with minimum fine grinding. The dry ore is first comminuted to between about three-fourths inch and 10 mesh particle size and magnetically separated. The dry tailing is discarded and the concentrate is ground to between about 20 and 100 mesh and again subjected to dry magnetic separation.
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The invention discloses a method for separating vanadium-titanium magnetite to extract iron, vanadium and titanium, comprising the following steps of magnetically selecting raw magnetite, that is, acquiring iron-vanadium concentrate and tail magnetite after performing magnetic selection on the vanadium-titanium magnetite sorting titanium concentrate from the tail magnetite, that is.
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Although the ultimate environmental effect of taconite tailings is a subject of controversy, future restrictions on the disposal of tailings in lakes and streams are likely. Alternate economic methods of tailings disposal are being sought. The present invention offers a practical solution to the tailings disposal problem and at the same time results in operating economies reducing the cost of processing the ore.
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Most magnetite iron ore is composed of some material which is fairly coarse grained and can be liberated without extremely fine grinding admixed with other material which is very fine grained and does require extremely fine grinding for liberation. According to present day practice, all of this material is finely ground to 85 percent or more minus 325 mesh.
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Only the 35 to 40 percent of the gross weight of the crude ore in the concentrate is then subjected to fine wet grinding and classification to about 85 percent or more minus 325 mesh and successive wet magnetic separation to produce a final concentrate of pelletizable ore of 65 percent or more iron. The small amount of wet tailings, between about 5 and 7 percent of the gross weight of the crude ore, can easily be pumped to a small tailings pond on dry land avoiding the necessity for disposal into a lake or stream.
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The middling and concentrate A were separately sized on sizing screens B, in this instance 35 mesh screens. The oversize were subjected to a rolls crusher and recycled. The sized middling and sized concentrate A were separately subjected to dry magnetic separators.
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Concentrate A was magnetically divided into two fractions, tailing C and concentrate C. Dry tailing C, equal to 13.77 percent recovery of the initial gross weight, assayed 29.89 percent total iron representing 12.54 percent total iron recovery 22.08 percent magnetic iron derived from minus 150 mesh has been discarded in the Davis tube tests representing 11.60 percent magnetic iron recovery and 21.71 percent magnetic iron derived from minus 270 mesh Davis tube tests representing 1 1.57 percent magnetic iron recovery. Dry concentrate B, equal to 29.93.
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The microwave roasting resulted in a chemical reduction of non-magnetic iron oxide minerals hematite to magnetite minerals, such as magnetite and maghemite. This mineral phase change could induce the effective separation of iron minerals from the gangue minerals by magnetic separation process.
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Zinc Powder Displacement Device Desorption Electrolysis System Mineral Processing EPC Solutions About Contact Home Products flotation reagent iron magnetic separation overall service flotation reagent iron magnetic separation overall service. Efficient Thickener. Efficient Thickener. Hydraulic Motor Driving Center Thickener.
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Zinc Powder Displacement Device Desorption Electrolysis System Mineral Processing EPC Solutions About Contact Home Products agitation iron magnetic separation energy saving agitation iron magnetic separation energy saving. Efficient Thickener. Efficient Thickener. Hydraulic Motor Driving Center Thickener. Hydraulic Motor Driving Center.
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Sales of magnetic iron powder separation equipment sales of magnetic iron powder separation equipment for iron ore magnetic separator is the main iron ore processing technology currently used. As the worlds leading supplier and manufacturer of crushing, grinding and beneficiation equipment, SBM provides a full range of iron processing equipment and separators.
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Iron ore magnetic separation processing plant design iron ore magnetic separation process in a complete iron ore magnetic separation processing plant, we need not only magnetic separator, but also crusher screening and grinding equipment. In the crushing stage, we need a primary crusher and a secondary crusher to crush.
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2020912ensp0183 Niger iron ore magnetic separation equipment 20190328 1 iron ore re mining equipment iron ore spiral magnetic separator inventory increases in Chinas ports. They forecast that the import price of iron ore will fluctuate in a narrow range in the near future, the average turnover of iron ore may rise, equipment sales, spiral magnetic separator read more.
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Iron ore occurs in igneous rock, metamorphic rock, metamorphic rock or sedimentary rock. There are many kinds of geological environment, most of which are sedimentary environment. However, many environments have changed due to weathering, so it is difficult to determine its source.
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