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Method for controlling scheelite roughing and heating beneficiation of running tailings

A roughing and scheelite technology, applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems of low grade of scheelite roughing concentrate, increased labor intensity of flotation workers, unstable operation process, etc. To achieve the effect of good floatability, less foam and simplified operation

Inactive Publication Date: 2021-04-02
HUNAN SHIZHUYUAN NON FERROUS METAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for controlling the tailing of scheelite roughing and heating and selection, which solves the problem mentioned in the above background technology that due to the poor selectivity of 733 in the operation process, there are many flotation foams and Viscous, the grade of scheelite roughing concentrate is low (about 2%), the tailing is high, and the tailings contain more scheelite and conjoined organisms. The recovery rate of the tungsten roughing section is about 73%. The operation process is extremely unstable and often occurs. The slot phenomenon not only increases the labor intensity of the flotation workers, but also causes a certain amount of waste and inconvenient management

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  • Method for controlling scheelite roughing and heating beneficiation of running tailings
  • Method for controlling scheelite roughing and heating beneficiation of running tailings

Examples

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Embodiment example 1

[0021] see figure 1 , the present invention provides a technical solution: a method for controlling the rough selection of scheelite and the heating and finishing process, comprising the following steps:

[0022] S1. Strong magnetic separation of sulfide ore tailings: sulfide ore tailings are subjected to strong magnetic separation for black and white tungsten separation, and the flotation section uses sulfide ore flotation tailings for strong magnetic separation to select strong magnetic minerals and non-magnetic minerals. Magnetic minerals enter the scheelite flotation operation, and strong magnetic minerals are discarded into the black tungsten flotation operation;

[0023] S2. Rough separation of non-magnetic minerals: add sodium carbonate, water glass agent, and increase the collector 0S-2, enter the rough separation of non-magnetic minerals, and obtain rough separation concentrate, scheelite feed grade is 0.4%, scheelite coarse and fine The ore grade is 2.8%, the schee...

Embodiment example 2

[0026] The present invention provides a technical solution: a method for controlling rough selection of scheelite and heating and selection, including the following steps:

[0027] S1. Strong magnetic separation of sulfide ore tailings: sulfide ore tailings are subjected to strong magnetic separation for black and white tungsten separation, and the flotation section uses sulfide ore flotation tailings for strong magnetic separation to select strong magnetic minerals and non-magnetic minerals. Magnetic minerals enter the scheelite flotation operation, and strong magnetic minerals enter the black tungsten flotation operation;

[0028] S2. Rough separation of non-magnetic minerals: add sodium carbonate, water glass agent, and increase the capture agent 0S-2, enter the rough separation of non-magnetic minerals, obtain rough separation concentrate, discard the rough separation tailings, and enter the heating process for the rough separation concentrate Featured.

[0029] S3. Heati...

Embodiment example 3

[0031] The present invention provides a technical solution: a method for controlling rough selection of scheelite and heating and selection, including the following steps:

[0032] S1. Mixed flotation of sulfide ore tailings with black and white tungsten: sulfide ore tailings enter the concentration pool, and the concentration is controlled at 40% to enter the mixed flotation of black and white tungsten. By adding regulators, collectors, and inhibitors, a flotation column is used. Coarse and fine to get black and white tungsten flotation rough concentrate.

[0033] S2. Heating and beneficiation: add caustic soda, sodium sulfide, water glass, and increase the capture agent 0S-2 into black and white tungsten for heating and beneficiation, the ore grade is 14%, and the grade of scheelite concentrate is 65% through heating flotation , 5.5% of scheelite concentrated tailings, 66% recovery rate of scheelite roughing section, roughing enters heating and concentration, heated tailings...

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Abstract

The invention discloses a method for controlling scheelite roughing and heating beneficiation of running tailings, and relates to the technical field of controlling scheelite roughing and heating beneficiation of running tailings, in particular to a method for controlling scheelite roughing and heating beneficiation of the running tailings, which comprises the following steps of: S1, performing strong magnetic separation on sulphide ore tailings; S2, roughing non-magnetic minerals; and S3, conducting heating and beneficiation. According to the method, the collecting performance of the scheelite is enhanced in the scheelite roughing operation by adding a new agent, and the method has the characteristics that the agent is good in scheelite floatability, high in collecting capacity, good in scheelite roughing mineralization condition, small in foam amount, crisp, stable in operation process and convenient to operate and manage, and the collecting performance of the scheelite is improved in the scheelite beneficiation section; and particularly, in the heating process, water glass and sodium sulfide have strong adsorption capacity on scheelite and do not fall into the tank. The beneficiation grade and the recovery rate of scheelite roughing are improved, the operation of heating and beneficiation operation is improved and simplified, and the recovery rate of tungsten beneficiation operation is increased.

Description

technical field [0001] The invention relates to the technical field of controlling scheelite roughing and heating and finishing, and specifically relates to a method for controlling scheelite roughing and heating and finishing. Background technique [0002] Description of the existing technical solution: In 2009, the 380 concentrator adopted the strong magnetic method to flotation black and white tungsten, and the flotation section used the tailings of sulfide ore flotation for strong magnetic separation to select strong magnetic minerals (black tungsten) and non-magnetic Minerals (scheelite) are selected separately. The rough selection of scheelite adopts 733, sodium carbonate, water glass drug system, heating and selecting caustic soda, sodium sulfide, water glass, 733 drug system, the flow chart is as follows figure 2 Shown: [0003] During the operation, due to the poor selectivity of 733, there are many and sticky flotation foams, the grade of scheelite roughing conce...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03C1/30B03D101/02B03D103/02
CPCB03D1/018B03C1/30B03D2201/02B03D2203/02
Inventor 魏大为
Owner HUNAN SHIZHUYUAN NON FERROUS METAL