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Magnetic-gravity separation of iron ore

concentrate by MG-separation at other iron ore complexes are reported earlier='. MG-separation enables to reduce silica, phosphorus and sometimes sulfur content in iron concentrates---e.g., MG-separation enables to reduce P2~ content in Kovdor magnetite concentrate from 0.15 to 0.09%. MG-separation during des provides for

(PDF) Dry Magnetic Separation of Iron Ore of the Bakchar

The main task of magnetic separation is to increase the total iron content in concentrates to a value which allows its further metallurgical processing. Ferruginous ore particles have a rounded...

Magnetic separation studies for a low grade siliceous iron

Two magnetic separation routes were investigated to concentrate iron. Zinc mine tailings were processed by route I, in a rougher stage followed by a scavenger stage; and route II, in a rougher

The Six Main Steps of Iron Ore Processing Multotec Canada

6. Magnetic separation. The concentrate collected from the middlings and tails after spiral gravity separation has a lower iron concentration (magnetite) so it must be further concentrated to achieve the customer’s 65% Fe concentration. It is immediately directed to a magnetic separator circuit. Magnetized drums collect magnetic material, so it can be further concentrated (magnetite iron minerals content).

Extraction of Nickel from Garnierite Laterite Ore Using

of 1100C, a roasting time of 90 min, a calcium chloride dosage of 15%, an iron concentrate dosage of 30%, a coke dosage of 15%, a coke size of 1 + 0.5 mm, a magnetic separation grinding fineness of <45 m occupying 90%, and a magnetic separation magnetic field intensity of H = 0.10 T.

Magnetic Separator an overview ScienceDirect Topics

Micro-organisms can play an important role in the removal of certain heavy metal ions from effluent solutions. In the case of uranyl ions which are paramagnetic, the cells which have adsorbed the ions may be concentrated using a high gradient magnetic separation process. If the ions themselves are not magnetic, it may be possible to precipitate a magnetic deposit on the surfaces of the cells. Some

Magnetic-gravity separation of iron ore

USACHYOV & KORYTNY: MAGNETIC-GRAVITY SEPARATION OF IRON ORE 131 Table l-Composition of magnetite concentrates of the Kostomuksha combinat Size class, mk Output,% Content,% Degree of magnetite Fe Si02 summary magnetite liberation,% magnet. non-ore aggregates II stage separation concentrate +50 38.5 37.6 42.2 13.9 1.8 84.3 28.0-50 61.5 65.9 7.6 66.4 4.7 8.9

CN101138744A Dry type magnetic separation method

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

(PDF) Dry Magnetic Separation of Iron Ore of the

[Show full abstract] results show that the separation process of high intensity magnetic-reverse flotation can obtain an iron concentrate grading about 66.62% at a recovery of 58.38% from an

Extraction of Iron from Refractory Titanomagnetite by

A magnetic concentrate with an iron content of 91.1% and a recovery of 92.9% was achieved. In addition, the relationship between the size distributions of iron particles and grinding fineness was also studied. The size distribution using data from the diameter of iron particles was found to be close to the actual grinding fineness. KEY WORDS: reduction roasting; magnetic separation

Pre-Concentration of Iron-Rich Sphalerite by Magnetic

In this study, gravity separation and magnetic separation were investigated as possible means to pre-concentrate iron-rich sphalerite in Pb–Zn deposits and reduce the mass fraction introduced to the flotation process. If the mass fraction loaded to the flotation process is successfully reduced by pre-concentration, several advantages can be expected, such as the reduction of grinding cost

ADVANCES IN MAGNETIC SEPARATION OF ORES

Magnetic separation of iron ores is one of the fastest-growing segments of the minerah beneficiation industry. The tonnage of taconite ores processed annually by magnetic separation toill, in a few years, reach 100 million. by L. A. ROE M agnetic separation occupies an attractive posi- tion in the field of ore beneficiation. It is a sim- ple yet effective method, used for some 150 years and

The Six Main Steps of Iron Ore Processing Multotec Canada

Magnetic separation. The concentrate collected from the middlings and tails after spiral gravity separation has a lower iron concentration (magnetite) so it must be further concentrated to achieve the customer’s 65% Fe concentration. It is immediately directed to a magnetic separator circuit. Magnetized drums collect magnetic material, so it can be further concentrated (magnetite iron

Magnetic Separation Process Mining Machinery

Wet material can be made into iron concentrate powder by dehydration. Generally, ore with an iron content of 35% can be made into concentrate powder with an iron content of 68-70% by this magnetic separation process. The wet and dry joint technology method can achieve ore utilization up to 90% and the magnetic separation process can save water, reduce costs and pollution. The magnetic

Recovery of boron from high-boron iron concentrate

01/02/2017 Consequently, boron was readily enriched into the non-magnetic product and the metallic iron was aggregated to the magnetic concentrate by magnetic separation. Boron recovery of 88. 6% with corresponding B 2 O 3 content of 14. 5% and iron recovery of 95. 1% with an iron grade of 92. 7% were achieved when high-boron iron concentrate was reduced at 1125 °C for 150 min.

Minerals Free Full-Text Extraction of Nickel from

The iron concentrate containing Fe 61.22% was collected as the additive from a dressing pant by magnetic separation and floatation in Dahongshang area of China. The main minerals were goethite FeOOH, flogopite KMg 3 [AlSi 3 O 10]·[F,OH] 2, sodaclase Na 2 O·Al 2 O 3 ·6SiO 2, and quartz SiO 2.

CN101138744A Dry type magnetic separation method

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

Extraction of Iron from Refractory Titanomagnetite by

A magnetic concentrate with an iron content of 91.1% and a recovery of 92.9% was achieved. In addition, the relationship between the size distributions of iron particles and grinding fineness was also studied. The size distribution using data from the diameter of iron particles was found to be close to the actual grinding fineness. KEY WORDS: reduction roasting; magnetic separation

The Six Main Steps of Iron Ore Processing Multotec Canada

Magnetic separation. The concentrate collected from the middlings and tails after spiral gravity separation has a lower iron concentration (magnetite) so it must be further concentrated to achieve the customer’s 65% Fe concentration. It is immediately directed to a magnetic separator circuit. Magnetized drums collect magnetic material, so it can be further concentrated (magnetite iron

Magnetic Separation Process Mining Machinery

Wet material can be made into iron concentrate powder by dehydration. Generally, ore with an iron content of 35% can be made into concentrate powder with an iron content of 68-70% by this magnetic separation process. The wet and dry joint technology method can achieve ore utilization up to 90% and the magnetic separation process can save water, reduce costs and pollution. The magnetic

Recovery of boron from high-boron iron concentrate

Consequently, boron was readily enriched into the non-magnetic product and the metallic iron was aggregated to the magnetic concentrate by magnetic separation. Boron recovery of 88.6% with corresponding B 2 O 3 content of 14.5% and iron recovery of 95.1% with an iron grade of 92.7% were achieved when high-boron iron concentrate was reduced at 1125 °C for 150 min.

Low Intensity Magnetic Separation Scientific.Net

This experiment using a simple process low intensity magnetic separation-high gradient magnetic separation, for the ultimate index for comprehensive grade of iron concentrate is 58.41%, at a total recovery of 80.85%, and obtain good experiment index, the harmful elements and impurity content can meet the standard.

Magnetic separation Wikipedia

Weak magnetic separation. Weak magnetic separation is used to create cleaner iron-rich products that can be reused. These products have low levels of impurities and a high iron load. This technique is used as a recycling technology. It is coupled with steelmaking slag fines as well as a

Iron ore beneficiation technology and process,gravity and

Gravity separation and magnetic separation are mainly used to separate coarse-grained and medium-grained weakly magnetic iron ore (20~2 mm). During gravity separation, heavy medium or jigging methods are commonly used for the gravity separation of coarse and very coarse (>20 mm) ores; spiral chutes, shakers and centrifugal concentrators for medium to fine (2~0.2mm) ores, etc. Reselect method.

Recovery of boron from high-boron iron concentrate

01/02/2017 Consequently, boron was readily enriched into the non-magnetic product and the metallic iron was aggregated to the magnetic concentrate by magnetic separation. Boron recovery of 88. 6% with corresponding B 2 O 3 content of 14. 5% and iron recovery of 95. 1% with an iron grade of 92. 7% were achieved when high-boron iron concentrate was reduced at 1125 °C for 150 min.

CN100500888C Method for preparing iron ore

The invention discloses a making method of concentrate iron ore, which comprises the following steps: (1) adding 5-25% ferric powder or ferric mud into disposed powder evenly; (2) placing material into reducing sintering furnace to sinter for 2-8 min through microwave; reducing weak magnetic ferric ore into magnetic ferric ore; (3) proceeding magnetic cobbing to obtain the product.