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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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

This process is a traditional northern process, and repeated roasting makes the process long and energy-intensive

Method used

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  • Method for separating iron, vanadium and titanium from schreyerite

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Effect test

example 1

[0031] Vanadium-titanium ore (containing TFe54.2%, V 2 o 5 0.62%, TiO 2 13.7%, particle size2 48.6%), the obtained magnetic material is separated by a second magnetic separation through a drum magnetic separator with a magnetic field strength of 0.03T to obtain a magnetic material (that is, the first iron-rich material, which contains TFe91.5%), and the obtained The non-magnetic material is re-selected by a shaker after being pulped by ball milling, and the second titanium-rich material (containing TiO 2 42.1%) and the second iron-rich material (which contains TFe55.7%).

example ２

[0033] Vanadium-titanium ore (containing TFe30.5%, TiO 2 47.2%, particle size 2 75.2%), and the obtained magnetic material is separated by a second magnetic separation through a drum magnetic separator with a magnetic field strength of 0.02T to obtain a magnetic material (that is, the first iron-rich material, which contains TFe87.5%), and the obtained The non-magnetic material is re-selected by a shaker after being pulped by ball milling, and the second titanium-rich material (containing TiO 2 57.5%) and the second iron-rich material (which contains TFe51.8%).

Embodiment 3

[0035] Vanadium-titanium ore (containing TFe53.1%, V 2 o 5 0.57%, TiO 2 12.8%, particle size2 52.0%), the obtained magnetic material is separated by a second magnetic separation through a drum magnetic separator with a magnetic field strength of 0.025T to obtain a magnetic material (that is, the first iron-rich material, which contains TFe90.2%), and the obtained The non-magnetic material is re-selected by a shaker after being pulped by ball milling, and the second titanium-rich material (containing TiO 2 43.7%) and the second iron-rich material (which contains TFe57.2%).

[0036] In summary, the vanadium-titanium magnetite, industrial sodium sulfate, coal powder and other raw materials used in the method for separating iron, vanadium and titanium in the vanadium-titanium ore of the present invention are cheap and easy to get, and the method can effectively convert vanadium-titanium The iron, vanadium and titanium resources in the mine are extracted, the process flow is sim...

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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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