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Mineral processing method of titanium-containing molten and separated slag

A beneficiation method and technology of melting slag, which is applied in the field of beneficiation of titanium-containing smelting slag, can solve the problem of low utilization rate of vanadium-titanium-magnetite titanium resources, improve the utilization rate of titanium resources, and expand the comprehensive utilization method and scope , to achieve value-added effects

Inactive Publication Date: 2013-02-13
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention proposes a beneficiation method of titanium-containing molten slag, in order to realize the recovery and utilization of titanium in the titanium-containing molten slag formed by direct reduction-electric furnace melting and water quenching of vanadium-titanium magnetite concentrate, and expand the application of titanium slag range, to solve the problem of low utilization rate of vanadium-titanium-magnetite titanium resources in my country

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 200g of representative titanium-containing molten slag (-3mm), use a three-stick and four-cylinder rod mill to grind the ore to a content of -0.074mm to about 75%, and add phosphoric acid, sulfuric acid, hydrochloric acid, and hydrofluoric acid to the pulp , nitric acid, oxalic acid, water glass, sodium hexametaphosphate, and sodium tripolyphosphate for scrubbing and mixing, with an amount of 5000g / t titanium-containing fused slag, and then adding sodium fluorosilicate, water glass, six One or more of sodium metaphosphate, carboxymethyl cellulose, oxalic acid, modified starch, and dextrin are used as gangue mineral inhibitors, and the dosage is 1200g / t of titanium-containing molten slag, and then an appropriate amount of mixed fatty acids is added Salt, oxidized paraffin soap, tall oil, naphthenic acid, sodium hydroxamate, styrene phosphonic acid, benzyl arsenic acid, sodium benzyl arsinate, tall oil, amines, sodium lauryl sulfonate, One or several kinds of neutra...

Embodiment 2

[0038] Weigh 200g of representative titanium-containing molten slag (-3mm), use a three-stick and four-cylinder rod mill to grind the ore to a content of -0.074mm to about 75%, and add phosphoric acid, sulfuric acid, hydrochloric acid, and hydrofluoric acid to the pulp , nitric acid, oxalic acid, water glass, sodium hexametaphosphate, and sodium tripolyphosphate for scrubbing and mixing, with an amount of 4000g / t titanium-containing fused slag, and then adding sodium fluorosilicate, water glass, six One or more of sodium metaphosphate, carboxymethyl cellulose, oxalic acid, modified starch, and dextrin are used as gangue mineral inhibitors, and the dosage is 2600g / t of titanium-containing molten slag, and then an appropriate amount of mixed fatty acids is added Salt, oxidized paraffin soap, tall oil, naphthenic acid, sodium hydroxamate, styrene phosphonic acid, benzyl arsenic acid, sodium benzyl arsinate, tall oil, amines, sodium lauryl sulfonate, One or several kinds of neutra...

Embodiment 3

[0040]Weigh 200g of representative titanium-containing molten slag (-3mm), use a three-stick and four-cylinder rod mill to grind the ore to a content of -0.074mm to about 85%, add sulfuric acid, hydrochloric acid, phosphoric acid, and hydrofluoric acid to the pulp , sodium hexametaphosphate, nitric acid, oxalic acid, water glass, sodium tripolyphosphate or one or several kinds of slurry, the dosage is 4000g / t titanium-containing molten slag, then add sodium fluorosilicate, water glass, six One or more of sodium metaphosphate, carboxymethyl cellulose, oxalic acid, modified starch, and dextrin are used as gangue mineral inhibitors, and the dosage is 1800g / t of titanium-containing fused slag. Then add an appropriate amount of oxidized paraffin soap, mixed fatty acid salts, tall oil, naphthenic acid, sodium benzyl arsenic acid, sodium hydroxamic acid, styrene phosphonic acid, benzyl arsenic acid, tall oil, amines, Sodium dialkyl sulfonate and one or more of neutral oils are used a...

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Abstract

The invention belongs to comprehensive utilization technologies of minerals, and relates to a mineral processing method of titanium-containing molten and separated slag. The titanium-containing molten and separated slag used in the mineral processing method is formed by conducting water quenching on molten mineral slag produced after vanadium titanium magnetite concentrate is used to make iron through a 'direct reduction-electric furnace melting separation' process, so that the source is wide. The specific steps are that the titanium-containing molten and separated slag is ground and then put into a flotation cell, mineral processing reagents are added to the flotation cell, the surfaces of the minerals are stirred and cleaned, and the pH (potential of hydrogen) value of mineral pulp is regulated; then an inhibitor, a collector, an auxiliary collector, and the like are added to the flotation cell, and efficient enrichment of titanium in the molten and separated slag is realized through flotation separation. Through the adoption of the mineral processing method, the titanium in iron making slag of the vanadium titanium magnetite concentrate can be effectively recovered, utilization ways and the application range of the titanium-containing molten and separated slag are expanded and the utilization rate of titanium resources of the vanadium titanium magnetite is increased.

Description

technical field [0001] The invention belongs to the comprehensive utilization technology of mineral resources, and relates to an ore dressing method for molten slag containing titanium. Background technique [0002] Titanium-containing fused slag SiO produced after ironmaking and water quenching of vanadium-titanium magnetite concentrate by "direct reduction-electric furnace melting" process 2 The content is 20%~25%, Al 2 o 3 The content is 6%-10%, the CaO content is 2%-5%, the MgO content is 10%-18%, the silicon, aluminum, calcium, and magnesium contents are relatively high, and the calcium, magnesium, and aluminum are evenly distributed in each phase. Silicon mainly exists in the aluminosilicate phase. Compared with the titanium concentrate obtained from primary vanadium-titanium magnetite, the content of silicon, calcium and magnesium in the molten slag is greatly increased, which is not suitable for use as a raw material for titanium dioxide in the chloride process, w...

Claims

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Application Information

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IPC IPC(8): B03D1/00
Inventor 张俊辉廖祥文李成秀陈炳炎刘亚川程仁举曾令熙张海峰徐璐
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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