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Method and device for unclassified flotation of ilmenite

A flotation device and full-grain grade technology, applied in flotation, solid separation, etc., can solve the problems of large amount of reagent addition, short mineral-medicine action time, poor effect, etc., to optimize the flotation process and improve the effect of reagents Effect, effect of simplifying the flotation process

Inactive Publication Date: 2019-07-02
SICHUAN LOMON MINING & METALLURGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of short mineral-medicine action time, poor effect, and large dosage of medicament in the prior art, the present invention provides a flotation method of ilmenite full-grain grade, which prolongs the mineral-medicine action time , reducing the amount of medicine added

Method used

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  • Method and device for unclassified flotation of ilmenite
  • Method and device for unclassified flotation of ilmenite
  • Method and device for unclassified flotation of ilmenite

Examples

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Embodiment 1

[0032] The present embodiment provides a kind of flotation method of ilmenite full-grain grade, such as figure 2 As shown, the magnetic separation tailings are used as flotation feed, after being concentrated, they are stirred and mixed with the flotation agent that is beneficial to sulfur separation and inhibits titanium separation in the 1# mixing tank, and then carry out sulfur roughing to remove ferro-titanium sulfur in mines;

[0033] The desulfurization tailings enter the 2# stirring tank and the 3# stirring tank in turn, and in the 2# stirring tank and the 3# stirring tank, the titanium flotation agent (especially the collector) which is beneficial to the separation of titanium is mixed with the ore pulp, and the effect is In this embodiment, the linear speed of the impellers in the 2# agitation tank and the 3# agitation tank is controlled at 5m / s~8m / s, which is realized by selecting the impeller diameter and rotation speed of the corresponding agitation tank. Specific...

Embodiment 2

[0047] A kind of flotation method of ilmenite full-grain grade. The difference from Example 1 is that the "gradient decrease" strong acid system is adopted in the flotation process. According to the pulp characteristics of different processes, sulfuric acid is added step by step to adjust the pH value. Primarily used to suppress gangue minerals. Among them, the main purpose of the roughing process is to ensure the yield of the flotation process, and the pH value is 2.8; the pH value of the sweeping process is higher than that of the roughing process due to the lower grade of the selected minerals, and the pH value is 3.0; the beneficiation operation is mainly used to reduce gangue entrainment , the pH value of different beneficiation stages gradually decreases and the mineral grade is increased. The pH value of the titanium beneficiation I process is 2.5, the pH value of the titanium beneficiation II process is 2.3, the pH value of the titanium beneficiation III process is 2.2,...

Embodiment 3

[0049] A kind of flotation method of ilmenite full-grain grade. The difference from Example 1 is that the "gradient decrease" strong acid system is adopted in the flotation process. According to the pulp characteristics of different processes, sulfuric acid is added step by step to adjust the pH value. Primarily used to suppress gangue minerals. Among them, the main purpose of the roughing process is to ensure the yield of the flotation process, and the pH value is 3.0; the pH value of the sweeping process is higher than that of the roughing process due to the lower grade of the selected minerals, and the pH value is 3.2; the beneficiation operation is mainly used to reduce gangue entrainment , different beneficiation stages gradually reduce the pH value and increase the mineral grade. The pH value of the titanium beneficiation I process is 2.8, the pH value of the titanium beneficiation II process is 2.5, the pH value of the titanium beneficiation III process is 2.4, and the t...

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Abstract

The invention provides a method for unclassified flotation of ilmenite. The method comprises the following steps: desulfurization, titanium flotation agent addition and stirring, rougher flotation, scavenging and concentration, wherein the step of titanium flotation agent addition and stirring is set after the desulfurization operation and before the rougher flotation; and the linear velocity of impellers in a stirring tank is 5-10 m / s. The flotation method adopts a "gradient reduction" strong acid system, the pH value of the rougher flotation process is 2.8-3.5, the pH value of the scavengingprocess is 3.0-3.5, the pH value of the I-stage concentration process is 2.5-3.0, the pH value of the II-stage concentration process is 2.3-2.8, the pH value of the III-stage concentration process is2.2-2.6, and the pH value of the IV-stage concentration process is 2.0-2.5. A corresponding device is also provided. A pulp is intensively stirred, no stirring tank is arranged in the flotation process, and a strong pulp suction tank is arranged in the flotation process, so the effect of agents in the ilmenite unclassified flotation process is improved, the consumption of the agents is reduced, the flotation time of middlings is improved, the flotation process is simplified and optimized, and the flotation working efficiency is increased.

Description

technical field [0001] The invention relates to the flotation technology in the mineral processing field, in particular to a flotation method and device for full-grain ilmenite grades. Background technique [0002] Ilmenite (FeTiO 3 ) of TiO 2 The theoretical content of ilmenite is 52.63%. It is the main mineral for extracting titanium and titanium dioxide. The raw material for ilmenite separation is the iron tailings. In recent years, with the development of ilmenite beneficiation process, the "electrical separation-flotation" and "gravity separation-flotation" processes are less and less used due to strict requirements on the particle size of the selected particles and cannot adapt to a wide range of particle size separation. , basically determined the principle process of ilmenite "strong magnetic-flotation", that is, the tailings of conventional iron separation are removed by strong magnetic magnetite, and the weak magnetic ilmenite is firstly flotation The method is ...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03D103/02
CPCB03D1/02B03D2203/02
Inventor 陈俊沈政昌刘术民史帅星王文超樊学赛夏廷富刘万峰王胜军
Owner SICHUAN LOMON MINING & METALLURGY
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