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Magnetic separation - Wikipedia

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. The process that is used for magnetic separation detaches non-magnetic material with those that are magnetic. This technique is useful for not all, but few minerals such as ferromagnetism/ferromagnetic (materials strongly affected by magnetic fields) and paramagnetic(materials that are less affected) but the effect is still noticeable). Not all metals are magnetic; gold, silver and alu

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ADVANCES IN MAGNETIC SEPARATION OF ORES

magnetic separation. Dry Magnetic Separation of Iron Ore: There are many inherent advantages in processes that utilize dry magnetic separation to beneficiate iron ore. Wet concentration of magnetite ore, in comparison, re- quires 500 to 1000 gal of water per ton of concen- trate produced. This means extensive use of water

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RefinerTech Iron Ore Magnetite Concentrator

RY series iron ore magnetic separator is widely used in low-grade iron ore beneficiating. With stable digital sensor, strong impules magetic fields and auto-electric valve system, it can produce high grade iron ore concentrate continually.

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Iron Ore Magnetic Separation - 911 Metallurgist

Apr 20, 2017  The largest development in the iron-ore industry, using magnetic concentration, is at the plants of Witherbee, Sherman Co. at Mineville, N. Y., where about 1,200,000 tons of crude ore were mined and separated in 1916. The dry process of separation is used.

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RefinerTech Iron Ore Magnetite Concentrator

RY series iron ore magnetic separator is widely used in low-grade iron ore beneficiating. With stable digital sensor, strong impules magetic fields and auto-electric valve system, it can produce high grade iron ore concentrate continually.

More

Magnetic Separation (Technical Report) OSTI.GOV

Mar 10, 2014  The yttrium-- rare earth concentrates were obtained from Fergusonite ore, Gadolinite ore, and a by-product from an ion-exchange resin separation process. In each case the mixture in terms of oxide was composed of from 50 to 60% yttrium and 5 to 15% heavy rare earths with the light rare earth fraction constituting the remaining material.

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Search Minerals Announces Results of Magnetic Separation ...

Apr 12, 2021  Engineering trade off studies will compare the cost of whole of ore treatment by the Direct Extraction Process versus pre-concentration by magnetic separation followed by WHIMS concentrate ...

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Developments in the physical separation of iron ore ...

Jan 01, 2015  The ore is mainly composed of magnetite, hematite, martite, and quartz. It is very difficult to produce a high-quality iron ore concentrate by magnetic separation alone for this type of iron ore. The ore is first ground using ball mills down to about 90% -75 μm.

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Assessing the performance of a novel pneumatic magnetic ...

Sep 01, 2020  Dwari et al. (2013) used a combination of dry and wet magnetic separation methods to upgrade a low-grade siliceous iron ore with magnetite, hematite, and goethite as major iron minerals. The study showed that for particles finer than 200 µm, the separation methods produced a magnetic concentrate with 67% iron and iron recovery of 90%.

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(PDF) Processing a rare earth mineral deposit using ...

The large peak shown in Fig. 13 for centrator the Falcon concentrate displays a diminished magnetic the 0.94 T magnetic concentrate produced from the Falcon concen- Please cite this article in press as: Jordens, A., et al. Processing a rare earth mineral deposit using gravity and magnetic separation.

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Principles of Magnetic Separation - Minerallurgy

May 15, 2021  Figure : Schematic representation of forces acting upon a particle (Svoboda et aI., 2003) The principles of magnetic separation are such that when particles of different magnetic susceptibility are placed in a magnetic field, they tend to disrupt the direction or the flow of the magnetic field and at the same time lead to the particles being magnetically induced.

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Investigation of Efficiency of Magnetic Separation Methods ...

concentrate with Fe grade and Fe recovery of %56.12 and %38.56, respectively. The results of the dry high-intensity magnetic separation for the two coarser fractions showed that size fraction of coarser than 1000 micron produced a concentrate with Fe

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Iron ore beneficiation technology and process,gravity and ...

Dec 17, 2020  Process flow: the ore is fed into the magnetic separator for weak magnetic separation to obtain magnetite concentrate and weak magnetic separation tailings, and the tailings enter the flotation process to obtain iron and sulfur. Weakly Magnetic Iron Ore . 1.Single weak magnetite

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Dry Magnetic Separation of Iron Ore of the Bakchar Deposit

natural ore fraction and the concentrate was 3.6%, which is expected during the dry magnetic separation without a The wet magnetic separation can be applied both as an independent process and ...

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Extraction of Nickel from Magnesia–Nickel Silicate Ore ...

Apr 29, 2021  In this study, magnesia–nickel silicate ore was investigated, which contained 0.83% Ni and antigorite, chlorite, magnetite (Fe3O4), quartz, and mica as the main minerals. Chloride roasting and magnetic separation were used to treat the ore. The addition of red mud enhanced the transformation of nickel silicate to a strongly magnetic mineral mainly comprising metallic Ni and that of hematite ...

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Simulation of a Dry Magnetic Separation Plant

Oct 12, 2018  The heat-treated ore feeds the magnetic separation plant to produce a concentrate that is subsequently smelted to produce cast iron, steel and a titanium oxide slag. The heat treatment increases the magnetic susceptibility of ilmenite while the magnetic susceptibilities of other gangue minerals are slightly affected.

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Magnetic separation – Magnetense

The WHIMS separator is a magnetic separation machine used in wet separation processes to treat fine grain materials which are smaller than 1.2mm or 200 mesh. These fine grain materials include red mine hematite, limonite, manganese ore, and ilmenite. The WHIMS is also used to treat magnetic minerals including quartz, feldspar, nepheline ore ...

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Magnetic Separation (Technical Report) OSTI.GOV

Mar 10, 2014  The yttrium-- rare earth concentrates were obtained from Fergusonite ore, Gadolinite ore, and a by-product from an ion-exchange resin separation process. In each case the mixture in terms of oxide was composed of from 50 to 60% yttrium and 5 to 15% heavy rare earths with the light rare earth fraction constituting the remaining material.

More

Search Minerals Announces Results of Magnetic Separation ...

Apr 12, 2021  Engineering trade off studies will compare the cost of whole of ore treatment by the Direct Extraction Process versus pre-concentration by magnetic separation followed by WHIMS concentrate ...

More

Magnetic-gravity separation of iron ore

USACHYOV KORYTNY: MAGNETIC-GRAVITY SEPARATION OF IRON ORE 133 Non-magnetic product Concentrate Feed Table 2---Parameters ofMG-separation ofmagnetite concentrates inAlS Output,% Content,% Recovery,% +50 mk grade class Fe sio, Fe sto, Content"10 Recovery% Class Fe Class Fe III Stage separation concentrate 23.5 56.7 2.9 62.4 45.2 11.0 21.8 0.6 ...

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A discussion of magnetic separation techniques for ...

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores M. DOBBINS*, J. DOMENICO*, and P. DUNN* *Outotec (USA) Inc.—Minerals Processing, Physical Separation Magnetic separation has long been used to upgrade and beneficiate a wide variety of industrial minerals.

More

Developments in the physical separation of iron ore ...

Jan 01, 2015  The ore is mainly composed of magnetite, hematite, martite, and quartz. It is very difficult to produce a high-quality iron ore concentrate by magnetic separation alone for this type of iron ore. The ore is first ground using ball mills down to about 90% -75 μm.

More

Dry Magnetic Separation of Iron Ore of the Bakchar Deposit

natural ore fraction and the concentrate was 3.6%, which is expected during the dry magnetic separation without a The wet magnetic separation can be applied both as an independent process and ...

More

Simulation of a Dry Magnetic Separation Plant

Oct 12, 2018  The heat-treated ore feeds the magnetic separation plant to produce a concentrate that is subsequently smelted to produce cast iron, steel and a titanium oxide slag. The heat treatment increases the magnetic susceptibility of ilmenite while the magnetic susceptibilities of other gangue minerals are slightly affected.

More

Assessing the performance of a novel pneumatic magnetic ...

Sep 01, 2020  Dwari et al. (2013) used a combination of dry and wet magnetic separation methods to upgrade a low-grade siliceous iron ore with magnetite, hematite, and goethite as major iron minerals. The study showed that for particles finer than 200 µm, the separation methods produced a magnetic concentrate with 67% iron and iron recovery of 90%.

More

(PDF) Processing a rare earth mineral deposit using ...

The large peak shown in Fig. 13 for centrator the Falcon concentrate displays a diminished magnetic the 0.94 T magnetic concentrate produced from the Falcon concen- Please cite this article in press as: Jordens, A., et al. Processing a rare earth mineral deposit using gravity and magnetic separation.

More

Principles of Magnetic Separation - Minerallurgy

May 15, 2021  Figure : Schematic representation of forces acting upon a particle (Svoboda et aI., 2003) The principles of magnetic separation are such that when particles of different magnetic susceptibility are placed in a magnetic field, they tend to disrupt the direction or the flow of the magnetic field and at the same time lead to the particles being magnetically induced.

More

US3887457A - Magnetic separation method - Google Patents

US3887457A US362218A US36221873A US3887457A US 3887457 A US3887457 A US 3887457A US 362218 A US362218 A US 362218A US 36221873 A US36221873 A US 36221873A US 3887457 A US3887457 A US 3887457A Authority US United States Prior art keywords magnetic magnetic particles particles less matrix Prior art date 1973-05-21 Legal status (The legal status is an assumption and is

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Concentration of Ores: Hydraulic Washing, Froth Flotation ...

In this method of Magnetic Separation, we use the magnetic properties of certain metals to divide them from the non-magnetic gangue. Here we place the powdered ore on a roller belt. One belt of this roller is a magnet. So the magnetic material attracts to the metal belt and stays on the belt. The non-magnetic gangue falls in a heap from the belt.

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Magnetic separation of particular mixtures - MARYLAND ...

The method of claim 10 wherein the ore suspension is de-watered and dried to a free-flowing state after being contacted with the magnetic fluid and wherein the dried ore is subjected to a magnetic separation to recover a mineral concentrate.

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Developments in the physical separation of iron ore ...

The dry magnetic separation results were judged as acceptable for the rough processing stage, while the products of the wet magnetic separation were the high-grade iron ore concentrates. The two ...

More

A discussion of magnetic separation techniques for ...

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores M. DOBBINS*, J. DOMENICO*, and P. DUNN* *Outotec (USA) Inc.—Minerals Processing, Physical Separation Magnetic separation has long been used to upgrade and beneficiate a wide variety of industrial minerals.

More

Magnetic-gravity separation of iron ore

USACHYOV KORYTNY: MAGNETIC-GRAVITY SEPARATION OF IRON ORE 133 Non-magnetic product Concentrate Feed Table 2---Parameters ofMG-separation ofmagnetite concentrates inAlS Output,% Content,% Recovery,% +50 mk grade class Fe sio, Fe sto, Content"10 Recovery% Class Fe Class Fe III Stage separation concentrate 23.5 56.7 2.9 62.4 45.2 11.0 21.8 0.6 ...

More

Simulation of a Dry Magnetic Separation Plant

Oct 12, 2018  The heat-treated ore feeds the magnetic separation plant to produce a concentrate that is subsequently smelted to produce cast iron, steel and a titanium oxide slag. The heat treatment increases the magnetic susceptibility of ilmenite while the magnetic susceptibilities of other gangue minerals are slightly affected.

More

Principles of Magnetic Separation - Minerallurgy

May 15, 2021  Figure : Schematic representation of forces acting upon a particle (Svoboda et aI., 2003) The principles of magnetic separation are such that when particles of different magnetic susceptibility are placed in a magnetic field, they tend to disrupt the direction or the flow of the magnetic field and at the same time lead to the particles being magnetically induced.

More

Concentration of Ores: Hydraulic Washing, Froth Flotation ...

In this method of Magnetic Separation, we use the magnetic properties of certain metals to divide them from the non-magnetic gangue. Here we place the powdered ore on a roller belt. One belt of this roller is a magnet. So the magnetic material attracts to the metal belt and stays on the belt. The non-magnetic gangue falls in a heap from the belt.

More

Quantitative Investigation of Roasting-magnetic Separation ...

Dec 29, 2017  WG coal powder with size ≤1.0 mm was applied as a reducing agent in the magnetic roasting process, to change the iron phase, and therefore to modify the magnetic properties for the facilitation of magnetic separation [].The main industrial values of WG coal are shown in Table 2, from which it can be seen that the fixed carbon content of this coal is high as ~78%, while the volatile

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Magnetic separation of particular mixtures - MARYLAND ...

The method of claim 10 wherein the ore suspension is de-watered and dried to a free-flowing state after being contacted with the magnetic fluid and wherein the dried ore is subjected to a magnetic separation to recover a mineral concentrate.

More

Mineral processing - Concentration Britannica

Mineral processing - Mineral processing - Concentration: Concentration involves the separation of valuable minerals from the other raw materials received from the grinding mill. In large-scale operations this is accomplished by taking advantage of the different properties of the minerals to be separated. These properties can be colour (optical sorting), density (gravity separation), magnetic ...

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Ore sorting: Efficiently optimise the treatment of ores in ...

In southern Africa, two x-ray sorters are used to pre-concentrate sulphide gold ore into two different grain size categories. While the input material has an average gold content of less than 0.8 g/t, the sorted product achieves a concentration of more than 4 g/t with an efficiency of approximately 90%.

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US3887457A - Magnetic separation method - Google Patents

US3887457A US362218A US36221873A US3887457A US 3887457 A US3887457 A US 3887457A US 362218 A US362218 A US 362218A US 36221873 A US36221873 A US 36221873A US 3887457 A US3887457 A US 3887457A Authority US United States Prior art keywords magnetic magnetic particles particles less matrix Prior art date 1973-05-21 Legal status (The legal status is an assumption and is

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High gradient magnetic separator-Sinonine

Features and technology advantages of high gradient magnetic separator. 1. its separation ring is designed to be vertical, concentrate ore is discharged by reverse flow and also with separation pulse device. 2. Powerful magnetic force, reliable and convenience performance. 3.Simple installation and easy to maintain.

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CN101138744A - Dry type magnetic separation method of iron ...

The present invention discloses a method for dry grinding and dry magnetic separation of iron concentrate powder, and in particular belongs to a method for eliminating a ball grinder and thoroughly improving a wet magnetic separation technique. With the present invention, a traditional jaw crusher is used for coarse crushing of ores, an improved cone fine crusher is used for fine crushing of ...

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Extraction of Nickel from Garnierite Laterite Ore Using ...

In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO2 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral; the other main minerals were potash feldspar, forsterite, tremolite, halloysite, quartz, and ...

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Increasing Iron and Reducing Phosphorus Grades of Magnetic ...

Jun 21, 2019  Low-intensity magnetic separation (LIMS) was combined with reverse flotation to increase the iron and reduce the phosphorus contents of the roasted product. The results showed that an optimized iron ore concentrate with an iron grade of 67.54%, phosphorus content of

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