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A beneficiation process based on microwave pretreatment to improve the efficiency of rutile electro-separation

A pretreatment and microwave technology, which is applied in the fields of chemical industry and metallurgy, can solve the problems of reduced rutile recycling rate, slow processing speed, and low selection efficiency, and achieve the advantages of uneven heating treatment, high drying rate, and high processing efficiency. Effect

Active Publication Date: 2022-07-05
HAINAN WENSHENG HIGH TECH MATERIALS +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are not many reports on the beneficiation process of rutile beneficiation at present. At present, multiple high-voltage electric separations are usually used for selection, but the processing speed is often slow and the efficiency is low. One electric separation can only obtain 30-40% Left and right qualified rutile has low selection efficiency, high energy consumption and increased cost, and repeated separation and selection steps have greatly reduced the recycling rate of rutile. Therefore, it is necessary to look for a new high selection efficiency and improve the rutile The beneficiation process of rutile beneficiation, which fully increases the recovery rate of the operation while comprehensively improving the grade, has important application value for fully improving the utilization rate of rutile resources and the beneficiation efficiency

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  • A beneficiation process based on microwave pretreatment to improve the efficiency of rutile electro-separation
  • A beneficiation process based on microwave pretreatment to improve the efficiency of rutile electro-separation

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1-a kind of beneficiation process based on microwave pretreatment to improve the efficiency of rutile electro-separation, comprising the following steps:

[0026] (1) Microwave pretreatment:

[0027] The raw rutile concentrate with a water content of 0.05% is transported to the mining machine with a box-type belt, and is subjected to microwave heating modification during the belt transmission process. The power of microwave heating modification is 25kg / kw. The microwave frequency is 3500MH Z , the microwave heating modification time is 15s, and the ore feeding rate is 40kg / min;

[0028] (2) Rough selection of high-voltage electricity selection:

[0029] The rough rutile concentrate after microwave pretreatment is sent to the high-voltage electric separator for high-voltage electric separation and rough separation. The temperature of the roughened placer is 45℃, and the rutile roughing concentrate and tailings are obtained respectively, and the tailings can...

Embodiment 2

[0033] Embodiment 2-a kind of beneficiation process based on microwave pretreatment to improve rutile electro-separation efficiency, comprising the steps:

[0034] (1) Microwave pretreatment:

[0035] The raw material of rutile rough concentrate with a water content of 0.05% is Hainan Haituo Mining Co., Ltd. Mozambique rough rutile concentrate, in which the rough concentrate contains TiO 2 82.18%, with Fe1.24%, with ZrO 2 3.58%. Among them, rutile is the main component, and there are also some iron-bearing rutile, ilmenite, zircon, white titanium and a small amount of brookite and anatase;

[0036] It is transported to the mining machine with a box-type belt, and microwave heating modification is carried out during the belt transmission process. The power of microwave heating modification is 35kg / kw, and the microwave frequency of heating modification is 4000MH. Z , the microwave heating modification time is 30s, and the ore feeding rate is 60kg / min,;

[0037] (2) Rough se...

Embodiment 3

[0041] Embodiment 3-a kind of beneficiation process based on microwave pretreatment to improve rutile electro-separation efficiency, comprising the steps:

[0042] (1) Microwave pretreatment:

[0043] The raw material of rutile rough concentrate with a water content of 0.05% is the Malaysian rutile rough concentrate of Fujian Wensheng Mining Co., Ltd., in which the rough concentrate contains TiO 2 83.09%, with Fe1.44%, with ZrO 2 2.98%. Among them, rutile is the main component, and there are also some iron-bearing rutile, ilmenite, zircon, white titanium and a small amount of brookite and anatase;

[0044] It is transported to the mining machine with a box-type belt, and microwave heating modification is carried out during the belt transmission process. The power of microwave heating modification is 30kg / kw, and the microwave frequency of heating modification is 3550MH. Z , the microwave heating modification time is 25s, and the ore feeding rate is 50kg / min;

[0045] (2) Rou...

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Abstract

The present invention provides a beneficiation process for improving the efficiency of rutile electrification based on microwave pretreatment. ~35kg / kw, frequency 3500~4000MH Z , the ore feeding amount is 40-60kg / min; (2) carry out high-voltage electric separation and roughing, the voltage is 40-50kV, the roller speed is 160-180 rpm / min, and the rutile roughing concentrate and tailings are obtained; (3) the The rutile roughing concentrate is subjected to high-voltage electrification selection, the voltage is 50-55kV, and the roller speed is 120-130 rpm / min to obtain rutile concentrate and rutile medium ore. The invention effectively improves the separation efficiency and effect of iron-containing rutile, white titanium ore and other impurities in rutile, increases the grade of rutile and the recovery rate of operation, and has the characteristics of high selection efficiency, simple process steps, environmental protection and high efficiency.

Description

technical field [0001] The invention relates to the technical fields of chemical industry and metallurgy, in particular to a beneficiation process for improving the efficiency of rutile electro-separation based on microwave pretreatment. Background technique [0002] The coastal placer mine is a very important deposit in the mineral resources of Hainan and Guangxi in my country. In addition to the abundant reserves of ilmenite, this type of deposit is accompanied by zircon and monazite with great reserves. TiO in existing rutile rough concentrate 2 The low grade is mainly due to iron-containing rutile and white titanium, and the TiO in iron-containing rutile and white titanium 2 The mass fractions are 65.216% and 65.814%, respectively. In order to select high-grade rutile, the iron-containing rutile and white titanium in the rutile rough concentrate must be removed to improve the grade of rutile. [0003] However, at present, there are not many literatures on the beneficia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C7/00B03C7/06
CPCB03C7/003B03C7/06Y02P10/20
Inventor 钟金根陈江安余文董文黎春周庆鑫王明匡敬忠邱廷省刘柳根王美乔符泽广
Owner HAINAN WENSHENG HIGH TECH MATERIALS