CN104941788A - Recovery method for carbon-contained copper and lead ore difficult to separate - Google Patents
Recovery method for carbon-contained copper and lead ore difficult to separate Download PDFInfo
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- CN104941788A CN104941788A CN201510294477.XA CN201510294477A CN104941788A CN 104941788 A CN104941788 A CN 104941788A CN 201510294477 A CN201510294477 A CN 201510294477A CN 104941788 A CN104941788 A CN 104941788A
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- concentrate
- copper
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- lead
- flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
- B03B5/04—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
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
The present invention relates to nonferrous metals recycling process modification technology, particularly relate to the recovery method that a kind of carbon containing difficulty selects copper-lead ore.
Background technology
Along with the development of society, the increase that people utilize copper, lead resource, copper, lead ore are day by day poor, technique of preparing difficulty is increasing.Copper, lead ore particularly containing carbonate minerals, complicated difficult choosing more.
It is complicated that carbon containing difficulty selects copper, lead ore to form, and carbonate minerals floatability is better, affects copper, lead concentrate grade.Copper, lead minerals symbiosis are close, with fine grain teeth cloth symbiosis, in addition after galena oxidation, and the Pb produced in grinding process
2+to chalcopyrite, there is activation, add asunder copper and lead difficulty.Effective inhibitor potassium bichromate of asunder copper and lead belongs to extremely toxic substance, serious to ecological environmental pollution, and production cost is high.
Therefore, reasonable development, utilize copper, plumbous mineral resources, strengthen technological development and the research of carbon containing difficulty being selected to copper, lead ore, improve copper, plumbous comprehensive utilization ratio to greatest extent, there is important economic benefit and social benefit widely.
Summary of the invention
The technical problem to be solved in the present invention be existing carbon containing difficulty select copper-lead ore to adopt traditional flotation separation method, decarburization are clean, copper-lead concentrate is mutually containing high and need to add the extremely toxic substances such as potassium bichromate in asunder copper and lead process, serious environment pollution, provides a kind of carbon containing difficulty to select the recovery method of copper-lead ore for this reason.
Technical scheme of the present invention is: a kind of carbon containing difficulty selects the recovery method of copper-lead ore, and it comprises the following steps: (1), broken, grinding: by crushing raw ore, be ground to-0.074mm grade to 70-80%; (2) bulk flotation: by the ore pulp after broken, grinding through one thick, two to sweep, two essences obtain bulk concentrate;
(3), the preparation of reagent removal agent: vulcanized sodium is dissolved in the ethanolic solution of 25-30wt%, stirs, be mixed with vulcanized sodium ethanolic solution;
(4), reagent removal: bulk concentrate is put into agitator and add mixing reagent removal agent stirring 10min, remove the surfactant of bulk concentrate;
(5), size mixing: the bulk concentrate after reagent removal is put into agitator add as dense media magnetic concentrate stir 10min, send into table concentration;
(6), table concentration: the bulk concentrate after sizing mixing is put into shaking table and is separated, obtain the bulk concentrate of the bulk concentrate of plumbous bulk concentrate, copper and magnetic iron ore with magnetic iron ore, copper and carbon respectively;
(7), purify: lead is put into magnetic separator with the bulk concentrate of magnetic iron ore be separated with magnetic iron ore, copper, obtains lead concentrate and copper concentrate, magnetic iron ore can reuse, and copper is put into shaking table with the bulk concentrate of carbon and is separated, and obtains copper concentrate and carbon ore deposit.
Bulk flotation described in such scheme comprises (1), roughly selects: the ore pulp after fragmentation, grinding is put into the lime that flotation device adds the 2.0kg/t as adjusting agent, stir 3min, add after stirring 3min as the butyl xanthate of the 100g/t of collecting agent and the butyl ammonium aerofloat of 50g/t, flotation 5-10min obtains roughly selecting froth concentrate and rougher tailings again; (2), once purging selection: continue to add obtaining chats 1 and once purging selection mine tailing as the butyl xanthate of the 40g/t of collecting agent and butyl ammonium aerofloat stirring 3min, the flotation 5-10min of 20g/t in rougher tailings, chats 1 returns one roughing operation; (3), secondary is scanned: continue to add in once purging selection mine tailing and stir 3min as the butyl xanthate of the 20g/t of collecting agent and the butyl ammonium aerofloat of 10g/t, flotation 5-10min obtains chats 2 and mine tailing, and chats 2 returns once purging selection operation, and mine tailing abandons; (4), primary cleaning: put into roughly selecting foam the lime that flotation device adds the 500g/t as adjusting agent, stir 3min, flotation 4-8min and obtain primary cleaning foam and smart tail 1, smart tail 1 returns roughly selects operation; (5), recleaning: primary cleaning foam is put into flotation device add stir 3min, flotation 3-6min obtain bulk concentrate and smart tail 2, smart tail 2 returns primary cleaning operation.
The invention has the beneficial effects as follows the method recovery lead and copper that adopt and weigh Combination of magnetic separation flotation, flow process simply, does not need to add inhibitor, environmental pollution is little, high financial profit, lead bronze concentrate quality are high, it is low to contain mutually, technological process is simple.There is economic benefit and social benefit widely; Vulcanized sodium incorporates the oxidation resistance that ethanol improves vulcanized sodium, ensures the reagent removal effect of vulcanized sodium.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1: a kind of carbon containing difficulty selects the recovery method of copper-lead ore, it is characterized in that it comprises the following steps: (1), broken, grinding: by crushing raw ore, be ground to-0.074mm grade to 70%; (2) bulk flotation: by the ore pulp after broken, grinding through one thick, two to sweep, two essences obtain bulk concentrate;
(3), the preparation of reagent removal agent: vulcanized sodium is dissolved in the ethanolic solution of 25wt%, stirs, be mixed with vulcanized sodium ethanolic solution;
(4) reagent removal: bulk concentrate is put into agitator and add mixing reagent removal agent stirring 10min, remove the medicament on the surface of bulk concentrate;
(5), size mixing: the bulk concentrate after reagent removal is put into agitator add as dense media magnetic concentrate stir 10min, send into table concentration;
(6), table concentration: the bulk concentrate after sizing mixing is put into shaking table and is separated, obtain the bulk concentrate of the bulk concentrate of plumbous bulk concentrate, copper and magnetic iron ore with magnetic iron ore, copper and carbon respectively;
(7), purify: lead is put into magnetic separator with the bulk concentrate of magnetic iron ore be separated with magnetic iron ore, copper, obtains lead concentrate and copper concentrate, magnetic iron ore can reuse, and copper is put into shaking table with the bulk concentrate of carbon and is separated, and obtains copper concentrate and carbon ore deposit.
Embodiment 2: a kind of carbon containing difficulty selects the recovery method of copper-lead ore, it is characterized in that it comprises the following steps: (1), broken, grinding: by crushing raw ore, be ground to-0.074mm grade to 75%; (2) bulk flotation: by the ore pulp after broken, grinding through one thick, two to sweep, two essences obtain bulk concentrate;
(3), the preparation of reagent removal agent: vulcanized sodium is dissolved in the ethanolic solution of 28%, stirs, be mixed with vulcanized sodium ethanolic solution;
(4), reagent removal: bulk concentrate is put into agitator and add mixing reagent removal agent stirring 10min, remove the medicament on the surface of bulk concentrate;
(5), size mixing: the bulk concentrate after reagent removal is put into agitator add as dense media magnetic concentrate stir 10min, send into table concentration;
(6), table concentration: the bulk concentrate after sizing mixing is put into shaking table and is separated, obtain the bulk concentrate of the bulk concentrate of plumbous bulk concentrate, copper and magnetic iron ore with magnetic iron ore, copper and carbon respectively;
(7), purify: lead is put into magnetic separator with the bulk concentrate of magnetic iron ore be separated with magnetic iron ore, copper, obtains lead concentrate and copper concentrate, magnetic iron ore can reuse, and copper is put into shaking table with the bulk concentrate of carbon and is separated, and obtains copper concentrate and carbon ore deposit.
Embodiment 3: a kind of carbon containing difficulty selects the recovery method of copper-lead ore, it is characterized in that it comprises the following steps: (1), broken, grinding: by crushing raw ore, be ground to-0.074mm grade to 80%; (2) bulk flotation: by the ore pulp after broken, grinding through one thick, two to sweep, two essences obtain bulk concentrate;
(3), the preparation of reagent removal agent: vulcanized sodium is dissolved in the ethanolic solution of 30%, stirs, be mixed with vulcanized sodium ethanolic solution;
(4), reagent removal: bulk concentrate is put into agitator and add mixing reagent removal agent stirring 10min, remove the medicament on the surface of bulk concentrate;
(5), size mixing: the bulk concentrate after reagent removal is put into agitator add as dense media magnetic concentrate stir 10min, send into table concentration;
(6), table concentration: the bulk concentrate after sizing mixing is put into shaking table and is separated, obtain the bulk concentrate of the bulk concentrate of plumbous bulk concentrate, copper and magnetic iron ore with magnetic iron ore, copper and carbon respectively;
(7), purify: lead is put into magnetic separator with the bulk concentrate of magnetic iron ore be separated with magnetic iron ore, copper, obtains lead concentrate and copper concentrate, magnetic iron ore can reuse, and copper is put into shaking table with the bulk concentrate of carbon and is separated, and obtains copper concentrate and carbon ore deposit.
Wherein bulk flotation specifically comprises (1), roughly selects: the ore pulp after fragmentation, grinding is put into the lime that flotation device adds the 2.0kg/t as adjusting agent, stir 3min, add after stirring 3min as the butyl xanthate of the 100g/t of collecting agent and the butyl ammonium aerofloat of 50g/t, flotation 5-10min obtains roughly selecting froth concentrate and rougher tailings again; (2), once purging selection: continue to add obtaining chats 1 and once purging selection mine tailing as the butyl xanthate of the 40g/t of collecting agent and butyl ammonium aerofloat stirring 3min, the flotation 5-10min of 20g/t in rougher tailings, chats 1 returns one roughing operation; (3), secondary is scanned: continue to add in once purging selection mine tailing and stir 3min as the butyl xanthate of the 20g/t of collecting agent and the butyl ammonium aerofloat of 10g/t, flotation 5-10min obtains chats 2 and mine tailing, and chats 2 returns once purging selection operation, and mine tailing abandons; (4), primary cleaning: put into roughly selecting foam the lime that flotation device adds the 500g/t as adjusting agent, stir 3min, flotation 4-8min and obtain primary cleaning foam and smart tail 1, smart tail 1 returns roughly selects operation; (5), recleaning: primary cleaning foam is put into flotation device add stir 3min, flotation 3-6min obtain bulk concentrate and smart tail 2, smart tail 2 returns primary cleaning operation.
lime stone is the inhibitor of iron sulfide mineral, and butyl ammonium aerofloat and butyl xanthate example are pressed 2:1 proportioning and used, as the collecting agent of copper, lead and associated gold and silver mineral.the effect of vulcanized sodium be dispel bulk concentrate surface floating agent, avoid affecting the separating effect of bulk concentrate on shaking table due to the existence of surfactant.The effect of magnetic concentrate can effectively lead concentrate and copper concentrate be separated in reuse adoption process.The specific requirement of magnetic concentrate is that proportion is greater than 4.3, and fineness-200 order is not more than 95%, and magnetic material content is greater than 98%; The mechanism of Gravity separation is lead concentrate (plumbous grade 50-70%) proportion is 5.6-6.5, copper concentrate (copper grade 15-25%) proportion is 3.6-4.1, magnetic concentrate (Iron grade 55-65%) proportion is 4.3-4.6, and according to the difference of proportion, magnetic iron ore is effectively separated lead minerals with copper mineral on shaking table; The difference act as according to proportion of shaking table, is separated copper with the effective of carbonate minerals; The effect of magnetic separator is that plumbous bulk concentrate with magnetic iron ore, copper are effectively separated with the bulk concentrate of magnetic iron ore.The ethanol (25-30wt%) of certain concentration being dissolved vulcanized sodium formation vulcanized sodium ethanolic solution is to weaken the oxidation rate of vulcanized sodium in water, avoiding vulcanized sodium to lose efficacy.
The copper that the present invention is recovered to is as shown in the table compared with traditional handicraft with lead.
Visible to copper and the plumbous rate of recovery far away higher than traditional handicraft.
Claims (2)
1. carbon containing difficulty selects a recovery method for copper-lead ore, it is characterized in that it comprises the following steps: (1), broken, grinding: by crushing raw ore, be ground to-0.074mm grade to 70-80%; (2) bulk flotation: by the ore pulp after broken, grinding through one thick, two to sweep, two essences obtain bulk concentrate;
(3), the preparation of reagent removal agent: vulcanized sodium is dissolved in the ethanolic solution of 25-30wt%, stirs, be mixed with vulcanized sodium ethanolic solution;
(4), reagent removal: bulk concentrate is put into agitator and add mixing reagent removal agent stirring 10min, remove the medicament on the surface of bulk concentrate;
(5), size mixing: the bulk concentrate after reagent removal is put into agitator add as dense media magnetic concentrate stir 10min, send into table concentration;
(6), table concentration: the bulk concentrate after sizing mixing is put into shaking table and is separated, obtain the bulk concentrate of the bulk concentrate of plumbous bulk concentrate, copper and magnetic iron ore with magnetic iron ore, copper and carbon respectively;
(7), purify: lead is put into magnetic separator with the bulk concentrate of magnetic iron ore be separated with magnetic iron ore, copper, obtains lead concentrate and copper concentrate, magnetic iron ore can reuse, and copper is put into shaking table with the bulk concentrate of carbon and is separated, and obtains copper concentrate and carbon ore deposit.
2. a kind of carbon containing difficulty as claimed in claim 1 selects the recovery method of copper-lead ore, it is characterized in that described bulk flotation comprises (1), roughly selects: the ore pulp after fragmentation, grinding is put into the lime that flotation device adds the 2.0kg/t as adjusting agent, stir 3min, add after stirring 3min as the butyl xanthate of the 100g/t of collecting agent and the butyl ammonium aerofloat of 50g/t, flotation 5-10min obtains roughly selecting froth concentrate and rougher tailings again; (2), once purging selection: continue to add obtaining chats 1 and once purging selection mine tailing as the butyl xanthate of the 40g/t of collecting agent and butyl ammonium aerofloat stirring 3min, the flotation 5-10min of 20g/t in rougher tailings, chats 1 returns one roughing operation; (3), secondary is scanned: continue to add in once purging selection mine tailing and stir 3min as the butyl xanthate of the 20g/t of collecting agent and the butyl ammonium aerofloat of 10g/t, flotation 5-10min obtains chats 2 and mine tailing, and chats 2 returns once purging selection operation, and mine tailing abandons; (4), primary cleaning: put into roughly selecting foam the lime that flotation device adds the 500g/t as adjusting agent, stir 3min, flotation 4-8min and obtain primary cleaning foam and smart tail 1, smart tail 1 returns roughly selects operation; (5), recleaning: primary cleaning foam is put into flotation device add stir 3min, flotation 3-6min obtain bulk concentrate and smart tail 2, smart tail 2 returns primary cleaning operation.
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| CN201510294477.XA CN104941788B (en) | 2015-06-02 | 2015-06-02 | A kind of carbon containing difficulty selects the recovery method of copper-lead ore |
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| CN104941788B CN104941788B (en) | 2017-06-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268559A (en) * | 2015-11-17 | 2016-01-27 | 紫金矿业集团股份有限公司 | Beneficiation method for low-grade copper sulphide ore |
| CN105689146A (en) * | 2016-03-07 | 2016-06-22 | 紫金矿业集团股份有限公司 | Low-alkalinity flotation separation method for pyrite activated by Cu2+ and chalcocite |
| CN106423535A (en) * | 2016-10-19 | 2017-02-22 | 湖南有色金属研究院 | Magnetic flotation combined beneficiation process for separating copper and lead sulphide ores |
| CN110560272A (en) * | 2019-09-20 | 2019-12-13 | 玉溪矿业有限公司 | Mineral separation process of carbon-containing copper sulfide ore |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268559A (en) * | 2015-11-17 | 2016-01-27 | 紫金矿业集团股份有限公司 | Beneficiation method for low-grade copper sulphide ore |
| CN105689146A (en) * | 2016-03-07 | 2016-06-22 | 紫金矿业集团股份有限公司 | Low-alkalinity flotation separation method for pyrite activated by Cu2+ and chalcocite |
| CN105689146B (en) * | 2016-03-07 | 2017-10-17 | 紫金矿业集团股份有限公司 | It is a kind of by the Cu2+ pyrite activated and the low alkalinity flotation separation method of vitreous copper |
| CN106423535A (en) * | 2016-10-19 | 2017-02-22 | 湖南有色金属研究院 | Magnetic flotation combined beneficiation process for separating copper and lead sulphide ores |
| CN110560272A (en) * | 2019-09-20 | 2019-12-13 | 玉溪矿业有限公司 | Mineral separation process of carbon-containing copper sulfide ore |
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| CN104941788B (en) | 2017-06-09 |
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