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

AI Technical Summary

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

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

Examples

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Comparison scheme
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Example Embodiment

[0016] Example 1: A recovery method of carbon-containing refractory copper-lead ore, characterized in that it includes the following steps: (1), crushing, grinding: crushing and grinding the raw ore to -0.074mm to 70%; (2) 1) 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 drug release: Dissolve sodium sulfide in a 25wt% ethanol solution, stir evenly, and prepare a sodium sulfide ethanol solution;

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

[0019] (5) Pulping: Put the demedicated mixed concentrate into a mixing tank, add magnetic concentrate as a heavy medium, stir for 10 minutes, and send it to a shaker for reselection;

[0020] (6) Shaker gravity separation: Put the mixed concentrate after mixing into a shaker for separation, and...

Example Embodiment

[0022] Embodiment 2: A method for recovering carbon-containing refractory copper-lead ore, characterized in that it includes the following steps: (1), crushing, grinding: crushing and grinding the raw ore to a particle size of -0.074mm to 75%; (2) 1) 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 drug release: dissolve sodium sulfide in 28% ethanol solution, stir evenly, and prepare sodium sulfide ethanol solution;

[0024] (4) Drug removal: Put the mixed concentrate into a mixing tank and add the mixed drug removal agent and stir for 10 minutes to remove the drug on the surface of the mixed concentrate;

[0025] (5) Pulping: Put the demedicated mixed concentrate into a mixing tank, add magnetic concentrate as a heavy medium, stir for 10 minutes, and send it to a shaker for reselection;

[0026] (6) Shaker gravity separation: Put the mixed concentrate after mixing into a shake...

Example Embodiment

[0028] Embodiment 3: A recovery method of carbon-containing refractory copper-lead ore, characterized in that it includes the following steps: (1), crushing, grinding: crushing and grinding the raw ore to a particle size of -0.074mm to 80%; (2) 1) 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 drug release: dissolve sodium sulfide in 30% ethanol solution, stir evenly, and prepare sodium sulfide ethanol solution;

[0030] (4) Drug removal: Put the mixed concentrate into a mixing tank and add the mixed drug removal agent and stir for 10 minutes to remove the drug on the surface of the mixed concentrate;

[0031] (5) Pulping: Put the demedicated mixed concentrate into a mixing tank, add magnetic concentrate as a heavy medium, stir for 10 minutes, and send it to a shaker for reselection;

[0032] (6) Shaker gravity separation: Put the mixed concentrate after mixing into a shaker f...

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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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