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Methods of extraction of products from titanium-bearing materials

A technology of perovskite and titanyl sulfate, applied in chemical instruments and methods, titanium compounds, titanium dioxide, etc., can solve the problems of using highly toxic gases and high temperatures

Pending Publication Date: 2021-08-06
阿瓦塔纳有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this process are high temperature and use of highly toxic gases

Method used

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  • Methods of extraction of products from titanium-bearing materials
  • Methods of extraction of products from titanium-bearing materials
  • Methods of extraction of products from titanium-bearing materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0346] Such as figure 1 As shown, this example describes one embodiment of the method of the present invention. Slag is prepared by grinding to the desired particle size. The slag and sulfuric acid are fed to a continuous reactor suitable for continuous mixing of slag, sulfuric acid and the formed sulfuric acid filter cake. The slag and sulfuric acid are mixed and fed to the reactor at a rate sufficient to effect the sulfation of titanium, magnesium, aluminum and calcium and other minor species present in the slag feedstock. The sulfated filter cake exits the reactor and is fed to a leaching step where it is contacted with water or dilute acid to produce a solid and liquid phase which are separated, preferably by filtration. The solid phase is recovered as calcium sulphate and silica and the liquid leach phase is fed to the titanium hydrolysis step. In the hydrolysis step, the TiO 2 The nuclei are contacted with the liquid leach solution in a suitable container at a suita...

Embodiment 2

[0348] This embodiment describes an embodiment of the preferred method of the invention, such as figure 2 shown. Slag is prepared by grinding to the desired particle size. The slag and sulfuric acid are fed into a continuous reactor adapted for continuous mixing of slag, sulfuric acid and the formed sulphated filter cake. The slag and sulfuric acid are mixed and fed through the reactor at a rate sufficient to effect the sulfation of titanium, magnesium, aluminum and calcium and other minor species present in the slag feedstock. The sulfated filter cake exits the reactor and is fed to a leaching step where it is contacted with water or dilute acid to produce a solid and liquid phase which are separated, preferably by filtration. The solid phase is recovered as calcium sulphate and silica and the liquid leach phase is fed to the titanium hydrolysis step. In the hydrolysis step, the TiO 2 The nuclei are contacted with the liquid leach solution in a suitable vessel at a suita...

Embodiment 3

[0351] Example 3 - New Zealand Steel Slag

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Abstract

The invention relates to processes for the extraction of products from titanium-bearing materials or a composition produced in a process for the production of titanium dioxide, and more particularly, although not exclusively, extracting titanium dioxide and / or one or more other products from iron making slag.

Description

technical field [0001] The present invention relates to processes for the extraction of products from titanium-containing materials or compositions produced in processes for producing titanium dioxide, more particularly but not exclusively, the invention relates to the extraction of titanium dioxide and / or a titanium dioxide from iron making slag process for one or more other products. Background technique [0002] It is currently not possible to recover valuable components from large mineral reserves by economically viable and / or environmentally friendly means. One of the reasons is that the grade of such components in the mineral stock is too low, resulting in a high rate of effluent or by-product generation. Another issue may be the refractory nature of such components in the mineral structure, making them difficult to recycle. Additionally, traditional methods of recovering valuable components from mineral reserves often require large amounts of energy and the use of l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/10C01G23/053
CPCC22B34/125C22B34/124C22B34/1259C22B7/04C22B26/20C22B26/22C22B21/0069C01F5/40C01F7/74C01F11/46C01G23/0534C01G23/08C01P2002/34
Inventor C·S·麦克尼科M·S·阿里J·T·赫罗尔德D·J·哈塞尔
Owner 阿瓦塔纳有限公司