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Vanadium titano-magnetite flotation method

A technology of vanadium-titanium magnetite and vanadium-titanium magnet, which is applied in flotation, solid separation, etc., and can solve problems such as excessive sulfur and phosphorus content

Active Publication Date: 2009-10-28
四川安宁铁钛股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the P content reaches more than 0.1%, the vanadium-titanium magnetite gradually increases. According to the ordinary flotation method, the titanium concentrate obtained by final flotation although TiO 2 content reached 47%, but the content of sulfur and phosphorus exceeded the standard. Improve the existing method of flotation titanium concentrate to reduce the S and P content of the product

Method used

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  • Vanadium titano-magnetite flotation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] TiO 2 100 tons of fine-grained vanadium-titanium magnetite (-200 mesh, 55%) with a content of 8.5% (wt), after settling in the thickening hopper, 10 tons of mud overflowed, and 90 tons of underflow passed through a 1200Gs weak magnetic separator for magnetic separation Obtain 3t of iron medium ore with a TFe content of 35%. After the remaining ore is screened through a cylindrical sieve, the obtained 86t of undersize is sent to the first stage of high gradient magnetic separator for magnetic separation to obtain tailings 1 and 68t of TiO 2 The magnetically separated ilmenite with a content of 13% is subjected to closed-circuit grinding and screening by a ball mill and a high-frequency vibrating screen, and the undersieve is sent to the second stage of high-gradient magnetic separator for magnetic separation to obtain tailings 2 and 34t TiO 2 The magnetically separated ilmenite with a content of 20% is magnetically separated by a 1200Gs weak magnetic separator to obtain...

Embodiment 2

[0021] TiO 2 100 tons of fine-grained vanadium-titanium magnetite (-200 mesh, 55%) with a content of 9.0% (wt), after being concentrated in a thickening hopper, 10 tons of mud will overflow, and 90 tons of underflow will pass through a 1200Gs weak magnetic separator for magnetic separation Obtain 3t of iron ore with a TFe content of 35%. After the remaining ore is sieved through a cylindrical sieve, the obtained 86t of undersieve enters the first stage of high gradient magnetic separator for magnetic separation to produce 70t of TiO 2 The magnetically separated ilmenite with a content of 13% is subjected to closed-circuit grinding and screening by a ball mill and a high-frequency vibrating screen, and the underscreen material enters the second stage of high-gradient magnetic separator for magnetic separation to produce 36t TiO 2 Magnetically separated ilmenite with a content of 20% is magnetically obtained by a 1200Gs weak magnetic separator to obtain 1t of iron ore, and the r...

Embodiment 3

[0024] TiO 2 100 tons of fine-grained vanadium-titanium magnetite with a content of 9.5% (wt) (-200 mesh accounts for 60%), after being concentrated in a thickening hopper, 10 tons of mud is overflowed, and 90 tons of bottom flow is magnetically separated by a 1200Gs weak magnetic separator Obtain 3t of iron ore with a TFe content of 35%. After the remaining ore is sieved through a cylindrical sieve, the obtained 86t of undersize enters the first stage of high-gradient magnetic separator magnetic separation to produce 73t of TiO 2 The magnetically separated ilmenite with a content of 13% is subjected to closed-circuit grinding and screening by a ball mill and a high-frequency vibrating screen, and the underscreen material enters the second stage of high-gradient magnetic separator for magnetic separation to produce 39t TiO 2 The magnetically separated ilmenite with a content of 20% is magnetically separated by a 1200Gs weak magnetic separator to obtain 1t of iron ore, and the ...

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Abstract

The invention relates to a vanadium titano-magnetite flotation method, belonging to ore flotation method technology field. The method comprises: magnetic separation for vanadium titano-magnetite to obtain the magnetic separation ferrotitanium ore concentrate and flotation of the magnetic separation ferrotitanium ore concentrate, adding the steps of dephosphorization and desulfurization before the flotation of the magnetic separation ferrotitanium ore concentrate. The flotation agents for bulk flotation are: xanthate, 2# oil and oleic acid. The ratio of the flotation agents by weight is: magnetic separation ferrotitanium ore concentrate: xanthate: 2# oil: oleic acid is 1000:0.8-1.1:1.7-2.1:1.7-2.1. When the flotation method is applied to the vanadium titano-magnetite flotation, the content of the obtained titanium ore concentrate TiO2 is more than 47%, S is less or equal to 0.18%, P is less than or equal to 0.03% and the titanium recovery rate in the titanium ore concentrate is 44-50%.

Description

technical field [0001] The invention belongs to the technical field of ore flotation methods, in particular to a flotation method of vanadium-titanium magnetite. Background technique [0002] The vanadium-titanium magnetite commonly used in the past has low P content (less than 0.03% in Panzhihua Iron and Steel Co., Ltd.), and P removal is usually not carried out, and the P content of the flotation titanium concentrate will not exceed the standard, resulting in no research on P removal technology. Therefore, floating phosphorus operation is not set in the existing vanadium-titanium-magnetite flotation titanium concentrate process, which specifically includes the following steps: A. After the fine-grained ilmenite is settled in the thickening hopper, overflow and underflow are obtained, and the underflow passes through The iron ore is obtained by magnetic separation with a weak magnetic separator; B. After the remaining tailings are sieved through a cylindrical sieve, the obt...

Claims

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Application Information

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IPC IPC(8): B03D1/004B03D101/02B03D103/04
Inventor 陈鹏郭万刚王发康曾茂祥龚发全龚发祥
Owner 四川安宁铁钛股份有限公司
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