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Process for recycling ilmenite through two stages of magnetic separation

A technology for recovering titanium and magnetic separation concentrates, applied in high gradient magnetic separators and other directions, can solve the difficulty of flotation, shorten flotation time, flotation reagent consumption and energy consumption, ilmenite resources cannot be recycled, titanium Low recovery rate and other problems, to achieve the effect of reducing flotation reagent consumption and energy consumption, shortening flotation time, and reducing flotation difficulty

Active Publication Date: 2010-06-09
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, no matter the recovery of coarse-grained ilmenite by the "re-election-electric separation" process or the recovery of fine-grained ilmenite by the "one-stage magnetic separation (using strong magnetic or medium magnetic)-flotation" process, the impact on titanium The recovery rate is low, and a large amount of ilmenite resources cannot be recycled, resulting in a waste of resources; and the use of flotation technology to recover coarse and fine-grained ilmenite requires high-quality raw materials to reduce the difficulty of flotation , Shorten flotation time, reduce flotation agent consumption and energy consumption

Method used

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  • Process for recycling ilmenite through two stages of magnetic separation
  • Process for recycling ilmenite through two stages of magnetic separation
  • Process for recycling ilmenite through two stages of magnetic separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment one: use the inventive method to carry out ilmenite beneficiation

[0064] When the selected fine-grained raw material grade is 9.0%, the first-stage high-gradient magnetic separator adopts SSS-1500 type, and when the exciting current is 900A, the obtained concentrate grade is 15.98% and tailings grade is 3.42%; the second-stage high-gradient magnetic separator The concentrator adopts SSS-1500. When the exciting current is 900A, the grade of concentrate ore is 21.30%, and the grade of tailings is 5.44%.

[0065] After the second-stage high-gradient magnetic separation concentrate enters the flotation process, the main agent for flotation (compared with the use of the first-stage high-gradient magnetic separation concentrate as the flotation raw material): the cost of flotation agents can be reduced by 24.7 yuan / ton. The cost of energy consumption can be reduced by 10 yuan / ton · concentrate; the recovery rate of the whole system is increased from 32.28% to 41....

Embodiment 2

[0066] Embodiment two: use the inventive method to carry out ilmenite beneficiation

[0067] In the selection of coarse-grained raw material TiO 2 When the content is 9.0%, the first-stage high-gradient magnetic separator adopts SLON-2000 type. When the excitation current is 900A, the grade of magnetically separated concentrate is 15.81%, and the grade of tailings is 2.82%. The second-stage high-gradient magnetic separator adopts SLON-2000 type, when the excitation current is 900A, the magnetic separation concentrate grade is 21.66%, and the tailings grade is 5.44%.

[0068] After the magnetic separation titanium concentrate enters the flotation process (compared with the use of a high-gradient magnetic separation concentrate as the flotation raw material), the cost of flotation reagents is reduced by 32.65 yuan / ton of concentrate, and the cost of energy consumption is reduced by 8 yuan / tons·concentrate; the recovery rate of the whole system is increased from 34.28% to 44.29...

Embodiment 3

[0069] Embodiment three uses the inventive method to carry out ilmenite beneficiation

[0070] In the selection of full-grain grade raw material TiO 2 When the content is 11%, the first-stage high-gradient magnetic separator adopts SLON-2000 type. When the excitation current is 900A, the grade of magnetically separated concentrate is 17.81%, and the grade of tailings is 3.12%. The second-stage high-gradient magnetic separator adopts SLON-2000 type, when the excitation current is 900A, the magnetic separation concentrate grade is 23.66%, and the tailings grade is 5.92%.

[0071] After the magnetic separation titanium concentrate enters the flotation process (compared with the use of a high-gradient magnetic separation concentrate as the flotation raw material), the flotation flotation agent cost can be reduced by 44.21 yuan / ton concentrate, and the energy consumption cost can be reduced 12 yuan / ton·concentrate; the recovery rate of the whole system increased from 39.38% to 49....

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Abstract

The invention relates to the field of ilmenite separation, in particular to a process for recycling ilmenite from a raw ore through magnetic separation. The technical problem to be solved is to provide an ilmenite recycling process with high recovery rate. The technical scheme for solving the technical problem is to provide the process for recycling the ilmenite through two stages of high-gradient magnetic separation. The process comprises the following steps: performing primary high-gradient magnetic separation on the raw ores after a preparation operation to obtain a primary high-gradient magnetic concentrate; and performing secondary high-gradient magnetic separation on the primary high-gradient magnetic concentrate after the preparation operation to obtain a secondary high-gradient magnetic concentrate. The process can be applied in the field of the ilmenite separation, improves the recovery rate of titanium and reduces production cost.

Description

technical field [0001] The invention relates to the field of ilmenite beneficiation, in particular to a process for recovering ilmenite by using a high-gradient magnetic separator. Background technique [0002] Recycling ilmenite to form titanium concentrate products, the current process generally adopts gravity separation method (such as: spiral concentrator, spiral chute, shaker and other equipment) to separate relatively coarse-grained minerals, and then gravity separation The ore is subjected to electric separation or re-election to obtain titanium concentrate; while relatively fine-grained minerals are separated by "one-stage magnetic separation (strong magnetic or medium magnetic)-flotation" process. [0003] However, no matter the recovery of coarse-grained ilmenite by the "re-election-electric separation" process or the recovery of fine-grained ilmenite by the "one-stage magnetic separation (using strong magnetic or medium magnetic)-flotation" process, the impact on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/025
Inventor 周建国戴向东邓清华胡厚勤王洪彬
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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