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  • بف التعدين تأثير الحجر كسارة آلة

    تأثير الحجر محطم افتتاح العلف: 820x700-1600x2080mm حجم التغذية: ≤500mm الوضعية: جميع أنواع خام سحق، السكك الحديدية، الطرق السريعة، الطاقة، الاسمنت، المواد الكيميائية، البناء وغيرها من الصناعات. المواد القابلة للتجهيز: طول الجانب من 100 إلى 500 ملم تحت المواد، وقوة ال10

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    PE كسارة الفك افتتاح العلف: 150 × 250-300 × 1300mm حجم التغذية: 125-250mm إنتاج:1-2200 طن / ساعة الوضعية: صناعة التعدين، صناعة الألغام، الصناعة الكيميائية، صناعة الاسمنت، صناعة البناء، صناعة المواد المقاومة للحرارة الخ. المواد القابلة للتجهيز:الحجر الجيري، الحصاة،10

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    مخروط محطم مخروط القطر:600-2200mm حجم التغذية:35-300mm إنتاج:12-1000t / ساعة الوضعية: المعادن، مواد البناء، بناء الطرق، الصناعة الكيميائية والسيليكات. المواد القابلة للتجهيز: الباريت، الرخام، الكالسيت، كاولين، الفحم، الجبس، الخرسانة، الحصى الأنهار، الجرانيت، ال10

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Iron ore beneficiation and iron concentrate processing and utilization iron ore beneficiation method

  • 2019-05-10

The iron minerals of industrial value are mainly: magnetite, hematite, pseudo-hematite, limonite and siderite.  except magnetite is strong magnetic materials ,  others are weak magnetic minerals.

iron ore resources are rich in China, iron ore types are: 1) magnetite ore; 2) multi-iron mineral iron ore (magnetite-hematite ore. magnetite-siderite ore, mirror iron ore-Ling Iron ore-hematite ore, etc.; 3) vanadium-containing titanium magnetite ore; 4) sulfide-containing polymetallic iron ore; 5) polymetallic iron ore containing sulfide, phosphorus or rare earth; 6) Braided hematite ore (hematite - siderite ore, siderite ore, etc.).


Strong magnetic magnetite ore

1.Single magnetite ore

Since most of the ore is a ferromagnetic magnetic mine, and the ore composition is simple, it is often extract by weak magnetic separation.

2.Multi-metal magnetite ore

It is mainly composed of sulfide magnetite ore and apatite magnetite ore. Generally, a weak magnetic separation and flotation combined process is adopted, that is, iron is recovered by weak magnetic separation, and sulfide or apatite is recovered by flotation.


Weak magnetic iron ore

1.Single weak magnetic iron ore

Including hematite ore, siderite ore, limonite ore and red iron (mirror iron) siderite ore. These weak magnetic iron ore are often referred to as "red mines." The ore dressing methods of the red ore have strong magnetic separation, flotation, gravity selection, roasting magnetic separation and the combined use of these methods.

2.Polymetallic weak magnetic iron ore

Hematite ore or siderite ore mainly containing phosphorus or sulfide. Such ores are generally gravity selection, floated, strongly magnetically selected, or combined with each other to recover iron minerals, and phosphorus or sulfide is recovered by flotation.

Magnetite Ore -  Hematite - Siderite

1.Single   Magnetite Ore -  Hematite - Siderite

Mainlyhematite -magnetite ore and magnet-pyrite ore. The methods for selecting such ores are as follows: 1) weak magnetic separation and gravity selection, flotation, and strong magnetic separation, that is, recovery of magnetite by weak magnetic separation, recovery of weak magnetic iron by gravity selection, flotation or strong magnetic separation ; 2) Magnetization roasting magnetic separation or combine with other methods, similar to magnetization roasting of single weak magnetic iron ore, but in the parallel flow of magnetization roasting magnetic separation and other beneficiation methods, the powder ore is Weak magnetic separation combined with other methods; 3) selective flocculation desilting method.

2. Multi-metal Magnetite Ore -  Hematite - Siderite


The main types of such ores are: Sulfide iron ore and phosphorus, sulfur or rare earth iron ore. The ore dressing method of this type of ore is more complicated in iron ore beneficiation. Generally, the combined process of weak magnetic separation and other methods is adopted, that is, magnetite is recovered by weak magnetic separation; recover weak magnetic materials by gravity selection, flotation or strong magnetic separation.

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