CN112619881A - Copper-lead-zinc-sulfur bulk concentrate sorting method - Google Patents
Copper-lead-zinc-sulfur bulk concentrate sorting method Download PDFInfo
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- CN112619881A CN112619881A CN202011257461.9A CN202011257461A CN112619881A CN 112619881 A CN112619881 A CN 112619881A CN 202011257461 A CN202011257461 A CN 202011257461A CN 112619881 A CN112619881 A CN 112619881A
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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
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
- C22B15/0008—Preliminary treatment without modification of the copper constituent by wet processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Abstract
A copper-lead-zinc-sulfur bulk concentrate separation method comprises the steps of bulk concentrate cleaning pretreatment, gravity separation of lead-sulfur and copper-zinc minerals, high-alkali regrinding separation of the lead-sulfur minerals, acid regrinding cleaning of the copper-zinc minerals, efficient copper-zinc separation and the like. Cleaning and pretreating copper-lead-zinc-sulfur bulk concentrates by adopting an acetone ultrasonic technology, then separating lead and sulfur from copper-zinc minerals by adopting a table concentrator suitable for micro-fine fraction separation, and separating the lead and sulfur minerals from the copper-zinc minerals by utilizing specific gravity difference, so that the problems of high mutual content of the concentrates, unqualified quality and the like caused by difficult inhibition of lead and sulfur after the bulk concentrates are finely ground are solved; the lead-sulfur concentrate adopts a high-alkali regrinding reinforced separation technology to realize lead-sulfur separation; after the copper-zinc mineral is subjected to acid pickling pretreatment, part of carbonate pumice is dissolved and removed, the quality of the copper-zinc bulk concentrate is improved, copper-zinc separation is performed on the basis, single qualified concentrate is obtained, and the separation efficiency of the copper-lead-zinc-sulfur bulk concentrate is improved.
Description
Technical Field
The invention relates to the technical field of separation of non-ferrous metal sulfide minerals, in particular to a method for separating copper-lead-zinc-sulfur bulk concentrates.
Background
Many copper-lead-zinc-sulfur polymetallic ores have complex symbiotic relationship and are influenced by the limitation of ore properties and production equipment, part of ore dressing plants produce copper-lead-zinc-sulfur bulk concentrates, and the copper-lead-zinc bulk concentrates can be directly smelted along with the improvement of the technical level of the smelting industry, but the main grade of copper, lead and zinc is insufficient due to over-high sulfur content, the smelting cost is higher, and the valuation coefficient of the copper-lead-zinc concentrates is low. The raw materials treated by the traditional copper-lead-zinc-sulfur separation process are mostly raw ores, the copper-lead-zinc mixed flotation-copper-lead-zinc separation process is mostly adopted, but the concentrate content is high, the copper-lead-zinc separation technical index is poor, and the sulfur resource is not comprehensively recovered.
Disclosure of Invention
The invention aims to provide a method for separating copper-lead-zinc-sulfur bulk concentrates, which solves the problems that single concentrates cannot be obtained, the separation efficiency of copper, lead and zinc is low, the indexes are poor, the mutual content of the concentrates is high and the like when the copper-lead-zinc-sulfur bulk concentrates are treated by the prior technical scheme.
In order to achieve the purpose, the invention discloses a copper-lead-zinc-sulfur bulk concentrate separation method, which is characterized by comprising the following steps of 1: adding 1000 g of acetone per ton of raw ore into the copper-lead-zinc mixed ore pulp, stirring, cleaning for 10-50 minutes by using an industrial ultrasonic cleaning machine, and then repeatedly cleaning for 2-5 times by using water, wherein the ultrasonic power of the industrial ultrasonic cleaning machine is 240-600W, and the ultrasonic frequency is as follows: 28-40 KHz; step 2, sorting lead, sulfur and copper-zinc minerals: uniformly feeding the pretreated copper-lead-zinc-sulfur bulk concentrate in the step 1 into a fine mud shaking table for separation, wherein the stroke of the shaking table is 5-7mm, the washing frequency is 490-processed and 540 times/minute, and the ore feeding concentration is 15%; obtaining lead-sulfur concentrate and copper-zinc concentrate; step 3, lead and sulfur separation: adding 3000 g/t of raw ore into the lead-sulfur concentrate in the step 2, grinding again, adding 30-50 g/t of raw ore into water and ethidium-sulfur nitrogen, adjusting the concentration of the ore pulp to 25%, and then carrying out lead-sulfur separation flotation to obtain lead concentrate and sulfur concentrate; step 4, pretreatment of copper-zinc concentrate and copper-zinc separation: adding 1000-2000 g/t dilute sulfuric acid with the concentration of 10% of the crude ore into the copper-zinc concentrate obtained in the step 2, grinding, adding water, cleaning and thickening, wherein the grain size of the ground ore with the fineness of-0.043 mm accounts for 85%, and then adding 500 g/t crude ore of sodium sulfide and 3000 g/t crude ore of 2000-2000 g/t for copper-zinc separation.
In the technical scheme of the copper-lead-zinc-sulfur bulk concentrate separation method, the further preferable technical scheme is characterized in that:
1. the cleaning time in the step 1 is 30 minutes, and the cleaning is repeated for 3 times by using water;
2. in the step 1, the ultrasonic power is 400W, and the ultrasonic frequency is as follows: 36 KHz;
3. the stroke of the shaking table in the step 2 is 6mm, and the stroke frequency is 510 times/minute;
4. adding 2500 g of lime per ton of raw ore in the step 3, grinding again, and then adding 40 g of water and 40 g of ethidium and sulfur nitrogen per ton of raw ore;
5. adding the dilute sulfuric acid in the step 4 to 1500 g/ton of raw ore;
6. and in the step 4, 800 g of sodium sulfide and 2500 g of sulfurous acid are added per ton of raw ore.
Compared with the prior art, the method adopts the acetone ultrasonic technology to carry out cleaning pretreatment on the copper-lead-zinc-sulfur bulk concentrate, then adopts a table suitable for micro-fine fraction sorting to separate lead and sulfur from copper-zinc minerals, and utilizes specific gravity difference to separate the lead and sulfur minerals from the copper-zinc minerals, thereby avoiding the problems of high mutual content of the concentrates, unqualified quality and the like caused by the difficulty in inhibiting the lead and sulfur after the bulk concentrate is finely ground; the lead-sulfur concentrate adopts a high-alkali regrinding reinforced separation technology to realize lead-sulfur separation; after the copper-zinc mineral is subjected to acid pickling pretreatment, part of carbonate pumice is dissolved and removed, the quality of the copper-zinc bulk concentrate is improved, copper-zinc separation is performed on the basis, single qualified concentrate is obtained, and the separation efficiency of the copper-lead-zinc-sulfur bulk concentrate is improved. The problems that single lead concentrate, zinc concentrate and sulfur concentrate cannot be obtained through traditional copper-lead-zinc-sulfur bulk concentrate separation, separation efficiency is low, mutual content of the concentrates is high, lead-zinc concentrate quality is unqualified and the like are solved.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, a method for sorting copper-lead-zinc-sulfur bulk concentrates includes the following steps, step 1, pretreatment of copper-lead-zinc-sulfur bulk concentrates: adding 1000 g of acetone per ton of raw ore into the copper-lead-zinc mixed ore pulp, stirring, cleaning for 10-50 minutes by using an industrial ultrasonic cleaning machine, and then repeatedly cleaning for 2-5 times by using water, wherein the ultrasonic power of the industrial ultrasonic cleaning machine is 240-600W, and the ultrasonic frequency is as follows: 28-40 KHz; step 2, sorting lead, sulfur and copper-zinc minerals: uniformly feeding the pretreated copper-lead-zinc-sulfur bulk concentrate in the step 1 into a fine mud shaking table for separation, wherein the stroke of the shaking table is 5-7mm, the washing frequency is 490-processed and 540 times/minute, and the ore feeding concentration is 15%; obtaining lead-sulfur concentrate and copper-zinc concentrate; step 3, lead and sulfur separation: adding 3000 g/t of raw ore into the lead-sulfur concentrate in the step 2, grinding again, adding 30-50 g/t of raw ore into water and ethidium-sulfur nitrogen, adjusting the concentration of the ore pulp to 25%, and then carrying out lead-sulfur separation flotation to obtain lead concentrate and sulfur concentrate; step 4, pretreatment of copper-zinc concentrate and copper-zinc separation: adding 1000-2000 g/t dilute sulfuric acid with the concentration of 10% of the crude ore into the copper-zinc concentrate obtained in the step 2, grinding, adding water, cleaning and thickening, wherein the grain size of the ground ore with the fineness of-0.043 mm accounts for 85%, and then adding 500 g/t crude ore of sodium sulfide and 3000 g/t crude ore of 2000-2000 g/t for copper-zinc separation. The copper-lead-zinc-sulfur bulk concentrate is added with acetone and is subjected to ultrasonic cleaning pretreatment, then the bulk concentrate is separated into lead-sulfur concentrate and copper-zinc concentrate by adopting a table concentrator, the lead-sulfur concentrate is subjected to lead-sulfur separation after high-alkali regrinding, and the copper-zinc concentrate is subjected to copper-zinc separation after pretreatment. The step 3-4 is a closed cycle flotation process; the unit of the dosage of the medicament added to each ton of copper-lead-zinc-sulfur mixed concentrate is gram.
Example 2, in the method for separating the copper-lead-zinc-sulfur bulk concentrate according to example 1, the cleaning time in the step 1 is 30 minutes, and the cleaning with water is repeated for 3 times.
Example 3, in the method for separating the copper-lead-zinc-sulfur bulk concentrate according to example 1 or 2, the ultrasonic power in the step 1 is 400W, and the ultrasonic frequency: 36 KHz.
Example 4. a copper lead zinc sulphur bulk concentrate sorting method according to example 1 or 2 or 3, wherein the shaking table in step 2 has a stroke of 6mm and a stroke number of 510 per minute.
Example 5, in the method for separating a copper-lead-zinc-sulfur bulk concentrate according to any one of examples 1 to 4, 2500 g of lime per ton of raw ore is added in the step 3, and after the lime is ground again, 40 g of water and 40 g of ethidium-nitrogen per ton of raw ore are added.
Example 6. a method for separating a copper-lead-zinc-sulfur bulk concentrate according to any one of examples 1 to 5, wherein the dilute sulfuric acid is added in step 4 at 1500 g/ton of raw ore.
Example 7. in a method for separating a copper-lead-zinc-sulfur bulk concentrate according to any one of examples 1 to 6, 800 g/ton of raw ore and 2500 g/ton of sulfurous acid are added in step 4.
Embodiment 8, a method for separating a copper-lead-zinc-sulfur bulk concentrate includes the following steps: step 1, adding 1000 g/ton of acetone into copper-lead-zinc mixed ore pulp, stirring, cleaning for 30 minutes by an industrial ultrasonic cleaning machine, and then repeatedly cleaning for 3 times by using water, wherein the ultrasonic power of the industrial ultrasonic cleaning machine is 240W, and the ultrasonic frequency is ultrasonic frequency: 28 KHZ; step 2, the shaking table is a micro-fine particle industrial shaking table, the stroke of the shaking table is 7mm, the frequency of flushing is 490 times/minute, the ore feeding concentration is 15%, and lead-sulfur concentrate and copper-zinc concentrate are obtained through sorting by the shaking table; step 3, adding 2000 g of lime into the lead-sulfur concentrate per ton of raw ore, regrinding, adding 30 g of ethyl sulfur nitrogen per ton of raw ore, adding water to adjust the concentration of the ore pulp to 25%, then carrying out lead-sulfur separation and rough separation, and obtaining lead concentrate and sulfur concentrate through a closed-circuit flotation circulation flow; and 4, adding the copper-zinc concentrate into 1000 g/ton of raw ore of dilute sulfuric acid with the concentration of 10%, carrying out ore grinding and cleaning treatment to obtain copper-zinc ore pulp with the fineness of minus 0.043mm and the grain size of 85%, carrying out thickening treatment, adding 500 g/ton of raw ore of sodium sulfide and 2000 g/ton of raw ore of sulfurous acid in stirring operation, and carrying out closed flotation circulation to obtain copper concentrate and zinc concentrate.
Through detection, the copper grade in the copper-lead-zinc-sulfur bulk concentrate described in this embodiment 8 is 6.86%, the lead grade is 13.23%, the zinc grade is 26.43%, and the sulfur grade is 31.34%; the copper concentrate obtained by the method has 22.32% of copper grade, 1.38% of lead grade, 3.65% of zinc grade, 75.45% of copper recovery rate, 40.21% of lead grade of lead concentrate, 1.64% of copper grade, 2.67% of zinc grade and 80.34% of lead recovery rate; the zinc grade of the zinc concentrate is 45.34 percent, the copper grade is 1.48 percent, the lead grade is 3.28 percent, and the zinc recovery rate is 85.45 percent; the sulfur grade of the sulfur concentrate is 42.43%, the lead grade is 1.29%, the copper grade is 0.45%, the zinc grade is 1.43%, and the sulfur recovery rate is 45.43%.
Comparative example 1, a conventional copper-lead-zinc partial mixed separation-copper-lead-zinc separation process is adopted, 2000 g/ton of lime is added into the same copper-lead-zinc-sulfur bulk concentrate, regrinding is carried out, copper-lead-zinc mixed separation desulfurization is carried out, copper-lead-zinc concentrate and sulfur concentrate are obtained, 500 g/ton of activated carbon and 1000 g/ton of sodium sulfide are added into the copper-lead-zinc concentrate, regrinding is carried out, 1500 g/ton of liquid sulfur dioxide is added into the raw ore, copper and lead-zinc mineral separation is carried out, and copper concentrate and lead-zinc concentrate are obtained. According to detection, the copper grade, the lead grade, the zinc grade and the sulfur grade in the copper-lead-zinc-sulfur bulk concentrate described in the comparative example 1 are 6.86%, 13.23%, 26.43% and 31.34%; the copper concentrate obtained by the method of the comparative example 1 has the copper grade of 15.34 percent, the lead grade of 9.34 percent, the zinc grade of 13.23 percent and the copper recovery rate of 60.56 percent; lead grade of the lead-zinc concentrate is 15.21 percent, zinc grade is 33.32 percent, copper grade is 2.65 percent, lead recovery rate is 60.34 percent, and zinc recovery rate is 70.34 percent; the sulfur grade of the sulfur concentrate is 35.23 percent, the lead grade is 6.76 percent, the copper grade is 2.31 percent, the zinc grade is 0.83 percent, and the sulfur recovery rate is 23.43 percent; compared with the embodiment 1, the copper concentrate has unqualified quality and higher impurity content, the recovery rate of copper, lead, zinc and sulfur is lower, and the mutual content of the concentrates is higher.
Embodiment 9, a method for separating a copper-lead-zinc-sulfur bulk concentrate, comprising the following steps: step 1, adding 1000 g of acetone/ton of raw ore into copper-lead-zinc mixed ore pulp, stirring, cleaning for 30 minutes by using an industrial ultrasonic cleaning machine, and then repeatedly cleaning for 3 times by using water, wherein the ultrasonic power of the industrial ultrasonic cleaning machine is 600W, and the ultrasonic frequency is 40 KHZ; step 2, the shaking table is a micro-fine particle industrial shaking table, the stroke of the shaking table is 5mm, the frequency of flushing is 540 times/minute, the ore feeding concentration is 15%, and lead-sulfur concentrate and copper-zinc concentrate are obtained through sorting by the shaking table; step 3, adding 3000 g/t of raw ore into the lead-sulfur concentrate, regrinding, adding 50 g/t of raw ore into the lead-sulfur concentrate, adding water to adjust the concentration of the ore pulp to 25%, then carrying out lead-sulfur separation and rough separation, and obtaining lead concentrate and sulfur concentrate through a closed-circuit flotation circulation process; and 4, adding the copper-zinc concentrate into 2000 g/ton of raw ore of dilute sulfuric acid with the concentration of 10%, carrying out ore grinding and cleaning treatment to obtain copper-zinc ore pulp with the fineness of minus 0.043mm and the grain size of 85%, carrying out thickening treatment, adding 1000 g/ton of raw ore of sodium sulfide and 3000 g/ton of raw ore of sulfurous acid in stirring operation, and carrying out closed flotation circulation to obtain copper concentrate and zinc concentrate.
Through detection, the copper grade in the copper-lead-zinc-sulfur bulk concentrate described in this embodiment 9 is 8.69%, the lead grade is 11.23%, the zinc grade is 23.34%, and the sulfur grade is 35.23%; the copper concentrate obtained by the method has the advantages of 20.23% of copper grade, 1.03% of lead grade, 2.45% of zinc grade, 29.45% of sulfur grade, 80.43% of copper recovery rate, 41.23% of lead grade of lead concentrate, 1.57% of copper grade, 2.84% of zinc grade and 75.65% of lead recovery rate; the zinc grade of the zinc concentrate is 42.43 percent, the copper grade is 1.78 percent, the lead grade is 2.45 percent, and the zinc recovery rate is 82.45 percent; the sulfur grade of the sulfur concentrate is 44.56%, the lead grade is 0.93%, the copper grade is 1.02%, the zinc grade is 2.32%, and the sulfur recovery rate is 55.34%.
Comparative example 2, a conventional copper-lead-zinc partial mixed separation-copper-lead-zinc separation process is adopted, 3000 g/ton of lime is added into the same copper-lead-zinc-sulfur bulk concentrate, regrinding is carried out, copper-lead-zinc mixed separation desulfurization is carried out, copper-lead-zinc concentrate and sulfur concentrate are obtained, 800 g/ton of activated carbon and 1500 g/ton of sodium sulfide are added into the copper-lead-zinc concentrate, regrinding is carried out, 2000 g/ton of liquid sulfur dioxide is added into the raw ore, copper and lead-zinc mineral separation is carried out, and copper concentrate and lead-zinc concentrate are obtained. According to detection, the copper grade in the copper-lead-zinc-sulfur bulk concentrate in the comparative example 2 is 8.69%, the lead grade is 11.23%, the zinc grade is 23.34%, and the sulfur grade is 35.23%; the copper concentrate obtained by the method of the comparative example 2 has 13.34% of copper grade, 7.34% of lead grade, 11.45% of zinc grade, 37.34% of sulfur and 65.32% of copper recovery rate; the lead grade of the lead-zinc concentrate is 13.24 percent, the zinc grade is 32.57 percent, the copper grade is 3.12 percent, the sulfur grade is 39.23 percent, the lead recovery rate is 6.034 percent, and the zinc recovery rate is 73.34 percent; the sulfur grade of the sulfur concentrate is 42.23 percent, the lead grade is 5.65 percent, the copper grade is 3.43 percent, the zinc grade is 1.45 percent, and the sulfur recovery rate is 34.56 percent; compared with the embodiment 1, the copper concentrate has unqualified quality and higher impurity content, the recovery rate of copper, lead, zinc and sulfur is lower, and the mutual content of the concentrates is higher.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept thereof within the scope of the present invention.
Claims (7)
1. The copper-lead-zinc-sulfur bulk concentrate separation method is characterized by comprising the following steps of:
step 1, pretreatment of copper-lead-zinc-sulfur bulk concentrates: adding 1000 g of acetone per ton of raw ore into the copper-lead-zinc mixed ore pulp, stirring, cleaning for 10-50 minutes by using an industrial ultrasonic cleaning machine, and then repeatedly cleaning for 2-5 times by using water, wherein the ultrasonic power of the industrial ultrasonic cleaning machine is 240-600W, and the ultrasonic frequency is as follows: 28-40 KHz;
step 2, sorting lead, sulfur and copper-zinc minerals: uniformly feeding the pretreated copper-lead-zinc-sulfur bulk concentrate in the step 1 into a fine mud shaking table for separation, wherein the stroke of the shaking table is 5-7mm, the washing frequency is 490-processed and 540 times/minute, and the ore feeding concentration is 15%; obtaining lead-sulfur concentrate and copper-zinc concentrate;
step 3, lead and sulfur separation: adding 3000 g/t of raw ore into the lead-sulfur concentrate in the step 2, grinding again, adding 30-50 g/t of raw ore into water and ethidium-sulfur nitrogen, adjusting the concentration of the ore pulp to 25%, and then carrying out lead-sulfur separation flotation to obtain lead concentrate and sulfur concentrate;
step 4, pretreatment of copper-zinc concentrate and copper-zinc separation: adding 1000-2000 g/t dilute sulfuric acid with the concentration of 10% of the crude ore into the copper-zinc concentrate obtained in the step 2, grinding, adding water, cleaning and thickening, wherein the grain size of the ground ore with the fineness of-0.043 mm accounts for 85%, and then adding 500 g/t crude ore of sodium sulfide and 3000 g/t crude ore of 2000-2000 g/t for copper-zinc separation.
2. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: the washing time in the step 1 is 30 minutes, and the washing is repeated 3 times by using water.
3. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: in the step 1, the ultrasonic power is 400W, and the ultrasonic frequency is as follows: 36 KHz.
4. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: the stroke of the shaking table in the step 2 is 6mm, and the stroke frequency is 510 times/min.
5. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: and adding 2500 g of lime per ton of raw ore in the step 3, grinding again, and adding 40 g of water and 40 g of ethidium and nitrogen per ton of raw ore.
6. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: and adding the dilute sulfuric acid in the step 4 to 1500 g/ton of raw ore.
7. The method for separating the copper-lead-zinc-sulfur bulk concentrate according to claim 1, characterized by comprising the following steps: and in the step 4, 800 g of sodium sulfide and 2500 g of sulfurous acid are added per ton of raw ore.
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| CN113909154A (en) * | 2021-09-29 | 2022-01-11 | 湖南艾非克矿业科技有限公司 | Beneficiation method for copper oxide ore containing malachite and peacock stone |
| CN114632630A (en) * | 2022-03-07 | 2022-06-17 | 广东省大宝山矿业有限公司 | Method for recovering copper and zinc from zinc-containing copper concentrate |
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