Method for separating iron, vanadium and titanium from schreyerite

A separation method, technology of vanadium-titanium ore, applied in the separation of vanadium and titanium, iron in vanadium-titanium ore, can solve the problems of long process and high energy consumption, achieve high-efficiency separation, reduce energy consumption, and avoid high-temperature reduction and melting Effect

Active Publication Date: 2014-01-22
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology

This process is a traditional northern process, and repe

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  • Method for separating iron, vanadium and titanium from schreyerite

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Example

[0030] Example 1 :

[0031] Vanadium titanium ore (containing TFe54.2%, V 2 O 5 0.62%, TiO 2 13.7%, particle size 2 48.6%), the obtained magnetic material is then subjected to secondary magnetic separation with a magnetic field strength of 0.03T through a rotating drum magnetic separator to obtain a magnetic material (that is, the first iron-rich material, which contains 91.5% of TFe). The non-magnetic material is re-selected by a shaker after ball milling to obtain the second titanium-rich material (which contains TiO 2 42.1%) and the second iron-rich material (including TFe55.7%).

Example

[0032] Example 2:

[0033] The vanadium titanium ore (containing TFe30.5%, TiO 2 47.2%, particle size 2 75.2%), the obtained magnetic material is separated by a magnetic field strength of 0.02T through a rotating drum magnetic separator to obtain a magnetic material (that is, the first iron-rich material, which contains 87.5% of TFe). The non-magnetic material is re-selected by a shaker after ball milling to obtain the second titanium-rich material (which contains TiO 2 57.5%) and the second iron-rich material (which contains 51.8% TFe).

Example Embodiment

[0034] Example 3

[0035] Vanadium titanium ore (containing TFe53.1%, V 2 O 5 0.57%, TiO 2 12.8%, particle size 2 52.0%), the obtained magnetic material is then subjected to secondary magnetic separation by a rotating drum magnetic separator with a magnetic field strength of 0.025T to obtain the magnetic material (that is, the first iron-rich material, which contains 90.2% TFe). The non-magnetic material is re-selected by a shaker after ball milling to obtain the second titanium-rich material (which contains TiO 2 43.7%) and the second iron-rich material (which contains 57.2% TFe).

[0036] In summary, the raw materials such as vanadium-titanium magnetite, industrial sodium sulfate, coal powder and the like used in the separation method of iron, vanadium and titanium in vanadium-titanium ore of the present invention are cheap and easy to obtain, and the method can effectively remove vanadium and titanium The iron, vanadium and titanium resources in the mine are extracted. The pro...

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Abstract

The invention discloses a method for separating iron, vanadium and titanium from schreyerite, which comprises the following steps: mixing schreyerite, sodium sulfate, a reducer and an adhesive, pressing into mineral coal pellets, drying the mineral coal pellets, filling into a rotary hearth furnace, and roasting at 1000-1300 DEG C for 20-60 minutes to obtain metalized pellets, wherein a neutral or micro-oxygenation atmosphere is in the rotary hearth furnace; crushing the metalized pellets, leaching at 70-90 DEG C while controlling the pH value at 3-5, and filtering the leach solution to obtain a vanadium solution; slurrying the leaching leftovers by ball milling while controlling the particle size at 0.045mm, and carrying out primary magnetic separation under the magnetic field intensity of 0.3-0.5T to obtain a nonmagnetic material which is a first titanium-rich material; carrying out secondary magnetic separation on the magnetic material under the magnetic field intensity of 0.02-0.04T to obtain a magnetic material which is a first iron-rich material; and slurrying the nonmagnetic material from the secondary magnetic separation by ball milling, and reseparating to obtain a second iron-rich material and a second titanium-rich material.

Description

technical field [0001] The invention relates to a utilization method of vanadium-titanium ore, more specifically, a method for separating iron, vanadium and titanium in vanadium-titanium ore. Background technique [0002] Panxi is rich in vanadium-titanium magnetite resources, how to achieve efficient separation of iron, vanadium and titanium resources is the most urgent research topic. At present, the traditional processes of separation of iron and titanium by ore dressing, blast furnace ironmaking, and converter vanadium extraction for steelmaking are mainly used. The process is long, and there are many intermediate by-products, which have a significant impact on the environment, and the recycling rate of available resources is low. The utilization rate is only about 45%. Aiming at the low resource utilization rate of the traditional process, Panzhihua Iron and Steel has developed the process of pre-reduction of vanadium-titanium ore in a rotary hearth furnace, electric f...

Claims

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Application Information

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IPC IPC(8): C22B34/22C22B34/12C22B5/10C22B3/04B03C1/00
Inventor 郝建璋黎建明文永才李占军张金阳刘功国齐建玲秦洁文盛艳
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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