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Method for producing high-quality acid-soluble titanium slag at low cost

An acid-soluble titanium slag, high-quality technology, applied in the production of titanium slag, low-cost production of high-quality acid-soluble titanium slag field, can solve the problem of high-quality acid-soluble titanium slag production without cost, achieve low cost, reduce The effect of power consumption

Inactive Publication Date: 2015-09-09
永仁多凌钛业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no effective method for producing high-quality acid-soluble titanium slag at low cost has been obtained so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The main chemical composition of the titanium concentrate described in the present embodiment 1 is: TiO 2 47%, Fe 2 o 3 15%, FeO 32%, CaO 0.45%, MnO 0.08%, MgO 0.68%, V 2 o 5 0.09%, SiO 2　 0.9%; the main components of coke powder are: fixed carbon 84%, ash 8%, volatile matter 4%, water 4%.

[0015] A. In each ton of TiO 2 Content is that in the titanium concentrate of 47wt%, add 130kg fixed carbon content and be that the coke powder of 84wt% mixes evenly;

[0016] B. Put the mixture of step A into the submerged arc furnace, feed 50A current for early smelting for 2 hours; then feed 100A current for mid-term smelting for 2 hours; finally feed 200A current for post-smelting for 1 hour; make the smelting temperature Gradually rise to 1650°C;

[0017] C, when step B is smelted to TiO in the melt 2 When the content is 74 wt%, the slag-iron melt is released into the slag basin, and the upper layer of titanium slag and the lower layer of molten titanium iron are nat...

Embodiment 2

[0021] The main chemical composition of the titanium concentrate described in the present embodiment 2 is: TiO 2 45%, Fe 2 o 3 13%, FeO 30%, CaO 0.43%, MnO 0.082%, MgO 0.78%, V 2 o 5 0.11%, SiO 2　 0.8%; the main components of anthracite powder are: fixed carbon 86%, ash 7%, volatile matter 5%, water 8%.

[0022] A. In each ton of TiO 2 Content is 45wt% in titanium concentrate, add 180kg fixed carbon content and be the anthracite coal powder of more than 86wt%, mix evenly;

[0023] B. Put the mixture of step A into the submerged arc furnace, feed 100A current for early smelting for 1 hour; then feed 150A current for mid-term smelting for 1.5 hours; finally feed 150A current for post-smelting for 1.5 hours; make the melting temperature Gradually rise to 1720°C;

[0024] C, when step B is smelted to TiO in the melt 2 When the content is 78 wt%, the slag-iron melt is released into the slag basin, and the upper layer of titanium slag and the lower layer of molten titaniu...

Embodiment 3

[0028] The main chemical composition of the titanium concentrate described in the present embodiment 3 is: TiO 2 46%, Fe 2 o 3 14%, FeO 30%, CaO 0.48%, MnO 0.078%, MgO 0.66%, V 2 o 5 0.08%, SiO 2　 0.76%; the main components of coke powder are: fixed carbon 86%, ash 9%, volatile 5%, water 4%.

[0029] A. In each ton of TiO 2 In the titanium concentrate with a content of 46wt%, add 135kg of coke powder with a fixed carbon content of 86wt%, or add 170kg of anthracite coal powder with a fixed carbon content of more than 85wt%, and mix evenly;

[0030] B. Send the mixture of step A into the submerged arc furnace, and pass through 80A current for 1.5 hours of early smelting; then pass through 120A current for mid-term smelting for 1.5 hours; finally pass through 180A current for about 1 hour of post-smelting; The temperature gradually rises to 1680°C;

[0031] C, when step B is smelted to TiO in the melt 2 When the content is 80 wt%, the slag-iron melt is released into th...

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Abstract

The invention provides a method for producing high-quality sulphate titanium slag at low cost. The method comprises the following steps: adding 120-145kg of coke dust with fixed carbon content of 45wt% into titanium concentrate with TiO2 content of 45wt% per ton, uniformly mixing, feeding the mixture to a submerged arc furnace, introducing current of 50-100A to smelt for 1-2 hours; introducing current of 100-150A to smelt for 1-2 hours; introducing current of 150-200A to smelt for 1-1.5 hours; discharging slag iron when the content of TiO2 in the smelt is 74-80wt%, naturally separating to obtain upper titanium slag and lower titanium molten iron. According to the method, the electric consumption can be greatly reduced to 2,500degree / ton slag, the usage of coke dust is half of conventional usage, emission of harmful gases, such as CO, S, P and the like can be reduced, environmental-friendliness is facilitated, and noise is reduced.

Description

technical field [0001] The present invention relates to a method for producing titanium slag, especially a method for producing high-quality acid-soluble titanium slag at low cost, which belongs to the field of smelting technology. Background technique [0002] With the decrease of titanium ore resources, the grade of titanium concentrate is getting lower and lower. In order to seek the survival of enterprises, many smelting and production enterprises are developing and seeking low-cost methods of smelting low-grade titanium concentrate. However, no effective method for producing high-quality acid-soluble titanium slag at low cost has been obtained so far. Contents of the invention [0003] The purpose of the present invention is to provide a method for producing high-quality acid-soluble titanium slag at low cost. [0004] The present invention is accomplished through the following technical solutions: a method for producing high-quality acid-soluble titanium slag at low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/12C22B7/04C21B11/10
CPCY02W30/54Y02P10/20
Inventor 彭能
Owner 永仁多凌钛业有限公司
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