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A method for producing titanium-rich material by utilizing ilmenite concentrate

A technology of titanium-rich materials and ilmenite, which is applied in the fields of metallurgy and chemical industry, can solve problems such as high energy consumption and environmental pollution, and achieve the effects of high product quality, simple and efficient recycling process, and green leaching process

Inactive Publication Date: 2018-05-22
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the problems of environmental pollution and high energy consumption in the production process of existing titanium-rich materials, the present invention aims to provide a clean method for preparing titanium-rich materials using ilmenite as raw material

Method used

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  • A method for producing titanium-rich material by utilizing ilmenite concentrate

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Effect test

Embodiment 1

[0021] Take 2kg of ilmenite concentrate, the particle size is between 120~200μm, put it in the stirring mill, weigh 1kg of citric acid and make it into a solution at room temperature, pour the solution into the stirring mill, turn on the stirring mill, and the speed is 30 rpm / minute, stirred and leached at room temperature for 6 hours, stopped stirring, filtered, cooled and crystallized the filtrate, and recovered citric acid crystals. Add water to the filter cake according to the mass ratio of filter cake: water = 1:1.2, put the mixture of filter cake and water into the centrifuge, turn on the centrifuge, set the speed at 1000 rpm, and stop after centrifuging for 20 minutes , after the centrifugation, the titanium-rich material has a high density and is black in color, and is located in the lower layer, and the rest of the material is in the lower density and gray in color, and is located in the upper layer. The upper layer and the lower layer are separated, and the lower la...

Embodiment 2

[0023] Take 1 kg of ilmenite concentrate, with a particle size of 150-200 μm, and put it in a stirring mill, weigh 800 g of citric acid to make a solution at room temperature, pour the solution into the stirring mill, turn on the stirring mill, and rotate at 40 rpm / minute, stirred and leached at room temperature for 5.5 hours, stopped stirring, filtered, cooled and crystallized the filtrate, and recovered citric acid crystals. Add water to the filter cake according to the mass ratio of filter cake: water = 1:1.4, put the mixture of filter cake and water into the centrifuge, turn on the centrifuge, set the speed at 1200 rpm, and stop after centrifuging for 25 minutes , after the centrifugation, the titanium-rich material has a high density and is black in color, and is located in the lower layer, and the rest of the material is in the lower density and gray in color, and is located in the upper layer. The upper layer and the lower layer are separated, and the lower layer is th...

Embodiment 3

[0025] Take 500g of ilmenite concentrate, the particle size is between 100~150μm, put it in the stirring mill, weigh 500g of citric acid and make it into a solution at room temperature, pour the solution into the stirring mill, turn on the stirring mill, and the speed is 45 rpm / minute, stirred and leached at room temperature for 7.5 hours, stopped stirring, filtered, cooled and crystallized the filtrate, and recovered citric acid crystals. Add water to the filter cake according to the mass ratio of filter cake: water = 1:1.2, put the mixture of filter cake and water into the centrifuge, turn on the centrifuge, set the speed at 1500 rpm, and stop after centrifuging for 25 minutes , after the centrifugation, the titanium-rich material has a high density and is black in color, and is located in the lower layer, and the rest of the material is in the lower density and gray in color, and is located in the upper layer. The upper layer and the lower layer are separated, and the lowe...

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Abstract

A method for producing titanium-rich material by utilizing ilmenite concentrate, comprising the following steps: stirring and leaching, centrifugal separation, and cooling and crystallization. The beneficial effects of the present invention are: (1) The technological process of the present invention is simple, the equipments used are all common equipments, the energy consumption is low in the preparation process of the titanium-rich material, and the obtained products are of high quality. (2) A large amount of pollution will be generated in the process of preparing titanium-rich materials from traditional ilmenite. The leaching agent used in the present invention has the characteristics of environmental protection and non-toxicity, and the leaching process is more green. (3) The recovery process of the leachant in the traditional leaching process is complicated. In the present invention, the excessive leachant can be recovered only by cooling and crystallization, and the recovery process is simpler and more efficient. (4) The reagents in the process of preparing titanium-rich materials from traditional ilmenite will react with the titanium component, resulting in a low recovery rate of the titanium component. Under the conditions described in the present invention, the leaching agent will not react with the ilmenite The titanium component in the reaction occurs, therefore, the method described in the present invention has a higher titanium component rate.

Description

technical field [0001] The invention belongs to the field of metallurgy and chemical industry, and relates to a method for producing titanium-rich material by utilizing ilmenite concentrate. Background technique [0002] Ilmenite is a natural oxide ore of titanium, also known as titanium magnetite, and is an important raw material for titanium industry. Common titanium natural minerals include rutile and ilmenite, etc. Natural rutile resource TiO 2 The content is relatively high, and generally only the post-TiO in the gravity beneficiation process is required 2 The content can reach about 90%, and then directly used as raw materials for titanium industry. However, the natural ilmenite resources have a low content of titanium components, and the ilmenite concentrate can only be obtained through the beneficiation process. After the beneficiation, the TiO in the ilmenite 2 The content is about 46%. [0003] TiO in ilmenite concentrate 2 The content is still not up to the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/12
Inventor 张武
Owner SHENYANG LIGONG UNIV