One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate

A vanadium-titanium-iron concentrate and a new process technology, applied in the new process of vanadium, titanium, one-step separation of iron in vanadium-titanium-iron concentrate, can solve the problems of long process, high production cost, large environmental pollution, etc., and achieve reduction The effect of low temperature and operating cost saving

Inactive Publication Date: 2013-09-04
CHANGSHA DONGXIN MINING & METALLURGICAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the many separation steps of these processes, it brings defects such as long process, large initial investment, high production cost, large environmental pollution, and low degree of comprehensive utilization.

Method used

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  • One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate
  • One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate
  • One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate

Examples

Experimental program
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Effect test

Embodiment 1

[0008] Example 1: Mix 100 parts of vanadium-titanium-iron concentrate with 40 parts of additives and 22 parts of solid reducing agent and briquette it, and keep it in a muffle furnace with a firing temperature of 900°C for 4 hours to obtain the reduction material; the reduction material is crushed and ground to -200 mesh 95%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 98%, magnetic separation to obtain concentrate and middle ore, tailings and middle ore are mixed into titanium-rich material. Among them, the chemical composition content of the vanadium-titanium iron concentrate is shown in Table 1, and the separation results of the obtained sponge iron powder, titanium-rich material and vanadium-containing solution are shown in Table 2.

Embodiment 2

[0009] Example 2: Mix 100 parts of vanadium-titanium-iron concentrate with 40 parts of additives and 25 parts of solid reducing agent, and press it into a block, and keep it in a muffle furnace with a firing temperature of 850°C for 5 hours to obtain the reducing material; the reducing material is crushed and ground to -200 mesh 95%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 98%, magnetic separation to obtain concentrate and middle ore, tailings and middle ore are mixed into titanium-rich material. Among them, the chemical composition content of the vanadium-titanium iron concentrate is shown in Table 1, and the separation results of the obtained sponge iron powder, titanium-rich material and vanadium-containing solution are shown in Table 3.

Embodiment 3

[0010] Embodiment 3: Mix 100 parts of vanadium-titanium-iron concentrate with 30 parts of additives and 20 parts of solid reducing agent and briquette it, and keep it in a muffle furnace with a firing temperature of 950°C for 5 hours to obtain the reducing material; the reducing material is crushed and ground to -200 mesh 95%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 98%, magnetic separation to obtain concentrate and middle ore, tailings and middle ore are mixed into titanium-rich material. Among them, the chemical composition content of the vanadium-titanium iron concentrate is shown in Table 1, and the separation results of the obtained sponge iron powder, titanium-rich material and vanadium-containing solution are shown in the following table.

[0011] Table 1 Analysis results of three vanadium-titanium iron ore concentrates in the embodiment (%)

[0012] Sample No. TF TiO 2 V 2 o 5 S...

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Abstract

The invention relates to a one-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate. The new technology technically comprises the steps of: directly separating out ferrum, titanium and vanadium at one step through new reducing, grinding and separating technology to produce three products: ferrum product for steelmaking or powder metallurgy or chemical industry, rich-titanium material with good acid solubility for sulfate process titanium dioxide, sodium poly-vanadium solution for extracting vanadium pentoxide, thus creating a high-efficiency and economic new technology for comprehensively utilizing the vanadium-titanium-ferrum concentrate. Compared with two-step and three-step methods, the one-step new technology has a series of advantages of being short in technological flow, economic for fixed assert investment, low in production cost, less in environment pollution, high in comprehensive utilization yield, excellent in product cost performance, obvious in energy conservation, emission reduction and the like, and provides a new technology for efficiently and economically comprehensively utilizing the abundant vanadium-titanium-ferrum concentrate resources for China, thus having wide application prospects.

Description

technical field [0001] The invention relates to the field of metallurgical technology and comprehensive utilization of mineral resources, in particular to a new process for separating iron, titanium and vanadium in vanadium-titanium-iron concentrate in one step. Background technique [0002] The relatively mature utilization method of vanadium-titanium iron concentrate is to use vanadium-titanium iron concentrate as raw material for blast furnace ironmaking. In China, only Panzhihua Iron and Steel and Chenggang Iron and Steel Co., Ltd. use it as the main raw material. vanadium, but titanium has not been effectively utilized. Vanadium-titanium-iron concentrates in other regions are generally only used for ordinary iron ore blast furnace ironmaking and ore blending, which wastes vanadium and titanium, and the price is also low. Therefore, domestic and foreign Various technological researches have been carried out, and the representative ones are: 1. Reduction grinding and sepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B5/02C22B34/12C22B34/22C21B13/00
CPCY02P20/10
Inventor 梁经冬梁毅梁建昂曾维龙
Owner CHANGSHA DONGXIN MINING & METALLURGICAL TECH DEV
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