Method for improving high-shale-content copper oxide ore dressing indicators

A technology of copper oxide ore and mud, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of reducing the type and amount of flotation reagents, and achieve easy industrial implementation, increase selectivity and capture Performance, the effect of simple beneficiation process

Inactive Publication Date: 2018-02-27
HUNAN RES INST FOR NONFERROUS METALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method uses ultrasonic technology to pretreat the pulp-copper oxide flotation process, solves the problem of mud cover, improves the selectivity and collection performance of the reagents for the target minerals, thereby reducing the types and dosage of flotation reagents, and further improving the precision. Mineral Copper Grade and Recovery

Method used

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  • Method for improving high-shale-content copper oxide ore dressing indicators
  • Method for improving high-shale-content copper oxide ore dressing indicators
  • Method for improving high-shale-content copper oxide ore dressing indicators

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Embodiment 1

[0021] In this embodiment, the raw ore is a certain copper oxide 1, which is a high argillaceous copper oxide ore with a grade of about 1.03%. Copper is recovered by pretreatment with ultrasonic technology.

[0022] The present invention adopts the beneficiation technological process of ultrasonic technology pretreatment method:

[0023] (1) Grinding, the raw ore is crushed and sent to the mill for grinding until the fineness is -0.074mm and the content accounts for about 88%, and the pulp is adjusted to the pulp concentration of 20%;

[0024] (2) Ultrasonic pretreatment, the overflow of the ore pulp obtained in S1 is sent into an ultrasonic stirring tank for ultrasonic pretreatment, the ultrasonic pretreatment time is 8min, the ultrasonic frequency is 28kHz, and the power is 900W to obtain the pretreated ore pulp;

[0025] (3) Flotation, the pretreated ore pulp obtained in S2 is sent into the flotation cell, and the ore dressing process of "twice roughing, three times sweepi...

Embodiment 2

[0034] In this embodiment, the raw ore is a certain copper oxide 2, which is high muddy, highly oxidized, and highly alkaline gangue-containing ore. The recyclable valuable element in the raw ore is copper, and the grade is about 1%. Coarse three-sweeping and two-finishing process flow, using the method provided by the present invention and the method without ultrasonic technology pretreatment to recover copper.

[0035] The present invention adopts the beneficiation technological process of ultrasonic technology pretreatment method:

[0036] (1) Grinding, the raw ore is crushed and sent to the mill for grinding, the content of ore grinding to a fineness of -0.074mm accounts for about 85%, and the pulp is adjusted to a pulp concentration of 22%;

[0037] (2) Ultrasonic pretreatment, the described ore pulp overflow that obtains in (1) is sent into ultrasonic agitation tank, carries out ultrasonic pretreatment, and ultrasonic pretreatment time is 5min, and ultrasonic frequency i...

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Abstract

The invention provides a method for improving high-shale-content copper oxide ore dressing indicators. The method comprises the following steps: ore grinding: grinding raw ore to achieve the finenessof negative 0.074 mm, the content of 85-95% and the ore pulp concentration of 18-30%; ultrasonic pretreatment: feeding obtained ore pulp into an ultrasonic stirring tank for the ultrasonic pretreatment, so as to obtain pretreated ore pulp; flotation: carrying out roughing on the pretreated ore pulp to obtain rougher concentrates and rougher tailings; carrying out concentration on the rougher concentrates to obtain a concentrate product; carrying out scavenging on the rougher tailings to obtain a tailing product; and adding a flotation reagent in the roughing and scavenging processes. Accordingto the method provided by the invention, a technological process that the ultrasonic pretreatment of the ore pulp and the floatation of copper oxide are combined is adopted, the problem about the covering effect of the ore pulp is solved, the target ore selectivity and capturing performance of the reagent are improved, and then the grade and the recovery rate of copper in the concentrate productare improved.

Description

technical field [0001] The invention relates to the technical field of beneficiation, in particular to a method for improving the beneficiation index of high argillaceous copper oxide ore. Background technique [0002] Copper is a very important metal resource in modern industry, and copper mine is also a very important mineral resource in the world today. At present, my country's copper metal mineral resources are facing a very severe shortage situation, and my country is the largest country in copper metal consumption. Metal plays an important role in the development of modern economy. my country's copper resources are very scarce, and now it largely depends on imports from abroad. [0003] Copper oxide ore resources are an important part of copper resources, and the reserves are relatively rich. Therefore, the development, processing and application of copper oxide ore resources are of great significance to the development of the copper metallurgical industry. However, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00B03D1/018B01J19/10B03D101/02B03D103/04
CPCB03B7/00B01J19/10B03B9/00B03D1/018B03D2201/02B03D2203/04
Inventor 褚亦功薛伟张立征李晓东陈代雄王立军易运来毛竞
Owner HUNAN RES INST FOR NONFERROUS METALS
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