Ilmenite treatment method

A processing method, ilmenite technology, applied in chemical instruments and methods, magnetic separation, improvement of process efficiency, etc., can solve problems such as inability to obtain titanium and iron at the same time, serious environmental pollution, long process flow, etc., and achieve easy industrialization The effect of low production and smelting temperature and convenient operation

Active Publication Date: 2020-11-17
重庆优钛实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these processes have certain disadvantages, such as high smelting temperature, long process flow, equipment erosion, serious environmental pollution, high cost, high energy consumption, and inability to obtain two resources of titanium and iron at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1000g of ilmenite was oxidized and roasted in air at 900°C for 2 hours to obtain an oxidized ilmenite mixture;

[0036] Add 300g of Na to the oxidized titanium-iron mixture 2 B 4 o 7 Additives, and mixed with 100g of coal powder (carbon content 10%), put into the equipment for heating reduction, heating up to 1130 ° C, heating time 2 hours, 1130 ° C for 2 hours, after heating reduction is completed, take it out after cooling, and take it out The final product was subjected to chemical analysis.

Embodiment 2

[0038] Compared with Example 1, what is added is 150g coal powder (15% carbon content), and others are all the same.

Embodiment 3

[0040] Compared with embodiment 1, what add is 200g pulverized coal (20% of carbon content), other are all the same.

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Abstract

The invention provides an ilmenite treatment method. The method comprises the following steps: roasting ilmenite in an oxidizing atmosphere to obtain oxidized titanium-iron mixed ore; mixing the oxidized titanium-iron mixed ore with pulverized coal, controlling the temperature to be 1050 DEG C to 1150 DEG C, carrying out magnetizing roasting for 1.5 hours to 2.5 hours, and obtaining reduced titanium-iron mixed ore after the magnetizing roasting is finished; and carrying out ball milling and magnetic separation on the reduced titanium-iron mixed ore, and obtaining iron ore concentrate powder and titanium slag. The treatment method is short in flow, convenient to operate and capable of realizing industrial production easily. Meanwhile, the treatment method is low in energy consumption, low in smelting temperature, small in pollution and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of integration and utilization of mineral resources, and more specifically relates to a method for processing ilmenite. Background technique [0002] Titanium and its compounds are important strategic metal resources of the country. With the reduction of natural rutile reserves at home and abroad, the demand for various titanium-containing products continues to grow, and low-grade ilmenite is getting more and more attention. People pay more attention to how to better process and utilize ilmenite. However, due to the complex crystal structure and special chemical composition of ilmenite, many difficulties have been brought to the smelting process. [0003] At present, the relatively mature processes for producing titanium-rich materials from ilmenite mainly include acid leaching, reduction corrosion, and electric furnace smelting. However, these processes have certain disadvantages, such as high smelting te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/02C22B34/12B03C1/015
CPCC22B1/02C22B34/1227B03C1/015Y02P10/20
Inventor 庞建明胡广华张群张翊
Owner 重庆优钛实业有限公司
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