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Recovery method for carbon-contained copper and lead ore difficult to separate

A recovery method, copper-lead technology, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of unclean decarburization, environmental pollution, high mutual content of copper-lead concentrate, etc., to achieve low environmental pollution, The process is simple and the effect of improving antioxidant capacity

Active Publication Date: 2015-09-30
TONGLING NON FERROUS METAL GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing carbon-containing refractory copper-lead ore adopts the traditional flotation separation method, the decarburization is not clean, the mutual content of copper-lead concentrate is high, and it is necessary to add heavy Potassium chromate and other highly toxic substances seriously pollute the environment, so a recovery method for carbon-containing refractory copper-lead ore is provided

Method used

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Examples

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Embodiment 1

[0016] Embodiment 1: A method for recovering carbon-containing refractory copper-lead ore, characterized in that it includes the following steps: (1), crushing and grinding: crushing and grinding the raw ore to a particle size of -0.074mm to 70%; (2 ) Mixed flotation: the crushed and ground pulp is subjected to one coarse, two sweeps and two fines to obtain a mixed concentrate;

[0017] (3) Preparation of the de-agent: dissolve sodium sulfide in 25wt% ethanol solution, stir evenly, and prepare sodium sulfide ethanol solution;

[0018] (4) Drug removal: put the mixed concentrate into the mixing tank, add the mixed drug remover and stir for 10 minutes, and remove the drug on the surface of the mixed concentrate;

[0019] (5) Slurry mixing: put the mixed concentrate after drug removal into the mixing tank, add the magnetic concentrate as a heavy medium and stir for 10 minutes, then send it to the shaker for re-election;

[0020] (6) Gravity separation on shaking table: Put the m...

Embodiment 2

[0022] Embodiment 2: A method for recovering carbon-containing refractory copper-lead ore, which is characterized in that it includes the following steps: (1), crushing and grinding: crushing and grinding the raw ore to a particle size of -0.074mm to 75%; (2 ) Mixed flotation: the crushed and ground pulp is subjected to one coarse, two sweeps and two fines to obtain a mixed concentrate;

[0023] (3) Preparation of de-agent: dissolve sodium sulfide in 28% ethanol solution, stir evenly, and prepare sodium sulfide ethanol solution;

[0024] (4) Drug removal: put the mixed concentrate into the mixing tank, add the mixed drug remover and stir for 10 minutes, and remove the drug on the surface of the mixed concentrate;

[0025] (5) Slurry mixing: put the mixed concentrate after drug removal into the mixing tank, add the magnetic concentrate as a heavy medium and stir for 10 minutes, then send it to the shaker for re-election;

[0026] (6) Gravity separation on shaking table: Put th...

Embodiment 3

[0028] Embodiment 3: A method for recovering carbon-containing refractory copper-lead ore, which is characterized in that it includes the following steps: (1), crushing and grinding: crushing and grinding the raw ore to a particle size of -0.074mm to 80%; (2 ) Mixed flotation: the crushed and ground pulp is subjected to one coarse, two sweeps and two fines to obtain a mixed concentrate;

[0029] (3) Preparation of de-agent: Dissolve sodium sulfide in 30% ethanol solution, stir evenly, and prepare sodium sulfide ethanol solution;

[0030] (4) Drug removal: put the mixed concentrate into the mixing tank, add the mixed drug remover and stir for 10 minutes, and remove the drug on the surface of the mixed concentrate;

[0031] (5) Slurry mixing: put the mixed concentrate after drug removal into the mixing tank, add the magnetic concentrate as a heavy medium and stir for 10 minutes, then send it to the shaker for re-election;

[0032] (6) Gravity separation on shaking table: Put th...

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Abstract

The invention discloses a recovery method for carbon-contained copper and lead ore difficult to separate. The recovery method includes the following steps that step1, according to smashing and grinding, the raw ore is smashed and ground to be at the size fraction of -0.074 mm by 70-80%; step2, bulk concentrate is obtained through bulk flotation; step3, reagent removal solution is prepared; step4, reagent removal is performed; step5, slurry mixing is performed; step6, shaking table reselection is performed; step7, according to purification, bulk concentrate of lead and magnetite and bulk concentrate of copper and magnetite are placed into a magnetic separator to be separated so as to obtain lead concentrate and copper concentrate, the magnetite can be repeatedly utilized, and bulk concentrate of copper and carbon is placed in a shaking table to be separated to obtain copper concentrate and carbon concentrate. The recovery method has the advantages that a gravity and magnetic levitation combination method is adopted for recovering lead and copper, inhibitor is not needed, environmental pollution is small, economic benefits are high, the lead concentrate and the copper concentrate are high in quality, mutual inclusion is low, and the technology process is simple; the recovery method has great economic benefits and social benefits.

Description

technical field [0001] The invention relates to a non-ferrous metal recovery process improvement technology, in particular to a recovery method of carbon-containing refractory copper-lead ore. Background technique [0002] With the development of society, people's utilization of copper and lead resources is increasing, copper and lead ores are becoming increasingly scarce, and the difficulty of beneficiation technology is becoming more and more difficult. Especially copper and lead ores containing carbonaceous minerals are more complicated and difficult to select. [0003] Carbon-containing refractory copper and lead ores have complex compositions, and carbonaceous minerals have good buoyancy, which affects the grades of copper and lead concentrates. The symbiotic relationship between copper and lead minerals is closely related, and the symbiosis is embedded in fine particles. In addition, after the oxidation of galena, the Pb produced in the grinding process 2+ It has an ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/00B03B5/04
CPCB03B5/04B03B7/00B03D1/00
Inventor 代献仁王周和赵红芬丁鹏彭时忠洪淦新朱继生闫德利李树兰
Owner TONGLING NON FERROUS METAL GROUP CORP
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