CN114703378A - Method for regulating slag type of pyrometallurgical copper smelting - Google Patents
Method for regulating slag type of pyrometallurgical copper smelting Download PDFInfo
- Publication number
- CN114703378A CN114703378A CN202210229647.6A CN202210229647A CN114703378A CN 114703378 A CN114703378 A CN 114703378A CN 202210229647 A CN202210229647 A CN 202210229647A CN 114703378 A CN114703378 A CN 114703378A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- copper
- slag
- enriched air
- blowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000010949 copper Substances 0.000 title claims abstract description 95
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 94
- 239000002893 slag Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000003723 Smelting Methods 0.000 title claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 96
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 96
- 239000001301 oxygen Substances 0.000 claims abstract description 96
- 238000007664 blowing Methods 0.000 claims abstract description 56
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 230000004907 flux Effects 0.000 claims abstract description 13
- 230000001276 controlling effect Effects 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 229910016514 CuFeO2 Inorganic materials 0.000 claims abstract description 7
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000007885 magnetic separation Methods 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 6
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 abstract description 4
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 14
- 238000005188 flotation Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- 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
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0041—Bath smelting or converting in converters
-
- 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
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0052—Reduction smelting or converting
-
- 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
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of metallurgy and provides a method for regulating and controlling a pyrometallurgical copper smelting slag type. The method for regulating and controlling the slag type of pyrometallurgical copper smelting provided by the invention comprises the following steps: after adding a flux into copper matte, blowing oxygen-enriched air, and then carrying out heat preservation to obtain blowing slag and blister copper; the volume of oxygen in the blowing oxygen-enriched air is larger than the volume of oxygen required by the complete oxidation of the copper matte. The volume of oxygen in the oxygen-enriched air is controlled to be larger than that of oxygen required by the complete oxidation of the copper matte, and the excessive oxygen oxidizes the metal copper into Cu2O，Cu2O and Fe in blown slag3O4And O2Continuously oxidized to generate CuFeO2So that Fe is contained in the blown slag3O4The content is obviously reduced, the viscosity is reduced, the slag-copper separation is promoted, and the blowing slag is reducedMechanical entrainment loss of medium copper. Meanwhile, CuFeO2Can be recycled in the subsequent magnetic separation process.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a method for regulating and controlling a slag type of pyrometallurgical copper smelting.
Background
In the modern copper smelting industry, the pyrometallurgical copper smelting accounts for more than 90% of the copper yield, and the pyrometallurgical process mainly adopts a smelting-converting two-stage process for copper smelting. Based on the high-iron characteristic of copper smelting raw materials, in the blowing process of copper matte, because the oxygen affinity of metal iron is stronger than that of copper, iron in the raw materials is preferentially oxidized, and oxygen-enriched air is continuously blown in the blowing process to ensure that part of iron is oxidized to generate Fe3O4。Fe3O4Resulting in increased viscosity of the blown slag and difficulty in slag removal. At the same time, blowing slag may foam, deteriorating slag-copper separation conditions, increasing mechanical entrainment losses of copper in the blowing slag. Production data show that the copper content of the blowing slag is between 4 and 18 percent, and Fe3O4The content is between 25 and 50 percent.
At present, smelting enterprises mostly adopt a mineral separation method or a method of adding a flux/a reducing agent to solve the problem of difficult slag discharge. There are studies showing that: copper in the blowing slag is present in a metallic state up to 75 percent, the effect of recovering the copper in the blowing slag by using a beneficiation method is not very ideal, and the loss of the copper is relatively large. The method of increasing the flux dosage and adding the reducing agent leads to the increase of the blowing slag quantity and the increase of the loss of the absolute quantity of copper, and simultaneously, the energy consumption is increased and the production cost is increased due to the fact that a large amount of flux heats and absorbs heat. Therefore, the beneficiation method or the flux/reducing agent adding method does not well solve the problem of difficult slag discharge of the converting slag.
Disclosure of Invention
In view of the above, the present invention aims to provide a slag type regulation method for pyrometallurgical copper smelting. The blowing method provided by the invention well solves the problem of difficult slag discharge of blowing slag.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a method for regulating and controlling a slag form of pyrometallurgical copper smelting, which comprises the following steps of:
after adding a flux into copper matte, blowing oxygen-enriched air, and then carrying out heat preservation to obtain blowing slag and blister copper;
the volume of oxygen in the blowing oxygen-enriched air is larger than the volume of oxygen required by the complete oxidation of the copper matte.
Preferably, the volume of oxygen in the blown oxygen-enriched air conforms to formula 1:
V1＝aV2formula 1;
in formula 1, a is 1.01 to 1.1, V1For blowing oxygen volume in oxygen-enriched air, V2The volume of oxygen required for complete oxidation of the copper matte.
Preferably, the heat preservation time is 10-20 min.
Preferably, the oxygen-enriched air blowing gas is oxygen-enriched air; the volume content of oxygen in the oxygen-enriched air is 21-26%.
Preferably, the blowing flow rate of the oxygen-enriched air is 25000-30000 Nm3/h。
Preferably, the volume of oxygen required for complete oxidation of the copper matte means the conversion of the S element in the copper matte into SO2The amount of oxygen required.
Preferably, in the processes of blowing the oxygen-enriched air and preserving heat, the temperature of the melt is 1160-1300 ℃ independently.
Preferably, the flux comprises one or more of limestone, lime and quartz stone,
preferably, the converting slag contains CuFeO2(ii) a CuFeO in the blown slag2The mass content of (A) is 8-25%.
Preferably, the pyrometallurgical copper smelting slag type regulation and control method is carried out in a copper converter; and oxygen-enriched air in the blown oxygen-enriched air is blown through the tuyere of the copper converter.
The invention provides a slag type regulation and control method for pyrometallurgical copper smelting, which comprises the following steps: after adding a flux into copper matte, blowing oxygen-enriched air, and then carrying out heat preservation to obtain blowing slag and blister copper; the volume of oxygen in the blowing oxygen-enriched air is larger than the volume of oxygen required by the complete oxidation of the copper matte. The volume of oxygen in the oxygen-enriched air is controlled to be larger than that of oxygen required by the complete oxidation of the copper matte by blowing, and the excessive oxygen oxidizes a small part of metal copper into Cu2O，Cu2O and Fe in blown slag3O4And O2Continuously carrying out oxidation reaction to generate CuFeO2So that Fe is contained in the blown slag3O4The content is obviously reduced, the viscosity is reduced, the slag-copper separation is promoted, and the mechanical entrainment loss of copper in the blowing slag is reduced. Meanwhile, CuFeO2Can be recycled in the subsequent copper slag magnetic separation process. The blowing method provided by the invention can improve the fluidity of the blowing slag, improve the slag discharging efficiency of the blowing slag, solve the problems of difficult slag discharging and large copper loss in slag during the blowing period of the converter in the copper smelting industry, and has the advantages of simple operation, strong practicability and good economic benefit.
Detailed Description
The invention provides a method for regulating and controlling a slag form of pyrometallurgical copper smelting, which comprises the following steps of:
after adding a flux into copper matte, blowing oxygen-enriched air, and then carrying out heat preservation to obtain blowing slag and blister copper;
the volume of oxygen in the blowing oxygen-enriched air is larger than the volume of oxygen required by the complete oxidation of the copper matte.
In the present invention, the starting materials used in the present invention are preferably commercially available products unless otherwise specified.
In the present invention, the copper matte is preferably from a smelting stage.
In the present invention, the flux preferably includes one or more of limestone, lime and quartz stone, and further preferably includes a mixture of quartz stone and lime, and a mixture of quartz stone and limestone.
In the present invention, the addition quality of the flux is preferably calculated based on the fact that the metal elements except for the Cu element in the copper matte are oxidized together with the flux to form slag and completely converted into a slag phase.
In the invention, the oxygen-enriched air blowing gas is oxygen-enriched air; the volume content of oxygen in the oxygen-enriched air is preferably 21-26%, more preferably 22-25%, and even more preferably 23-24%.
In the invention, the blowing flow rate of the oxygen-enriched air is preferably 25000-30000 Nm3More preferably 26000 to 27000Nm3/h。
In the invention, the volume of oxygen in the blown oxygen-enriched air is larger than the volume of oxygen required for complete oxidation of the copper matte.
In the present invention, the volume of oxygen in the blown oxygen-enriched air preferably conforms to formula 1:
V1＝aV2formula 1;
in formula 1, a is 1.01 to 1.1, V1For blowing oxygen volume in oxygen-enriched air, V2The volume of oxygen required for complete oxidation of the copper matte.
In the present invention, in formula 1, a is more preferably 1.03 to 1.08, and still more preferably 1.05 to 1.07.
In the present invention, the volume of oxygen gas required for the complete oxidation of copper matte means that the S element in copper matte is converted into SO2The amount of oxygen required.
In the invention, the heat preservation time is preferably 10-20 min.
In the invention, the temperature of the melt is preferably 1160-1300 ℃ independently in the processes of blowing oxygen-enriched air and preserving heat, and is further preferably 1200-1250 ℃.
In the present invention, the converting slag preferably contains CuFeO2(ii) a CuFeO in the blown slag2The mass content of (A) is preferably 8 to 25%.
In the present invention, the blown slag is preferably recycled; the recovery comprises the steps of sequentially carrying out flotation and magnetic separation. After the flotation, part of copper-containing minerals and flotation slag are obtained; and carrying out magnetic separation on the flotation slag. The parameters of the flotation and magnetic separation are not particularly limited in the present invention, and the parameters of the flotation and magnetic separation well known to those skilled in the art can be adopted.
After the magnetic separation, CuFeO is preferably obtained by the invention2And magnetite and tailings.
In the invention, the method for regulating and controlling the slag type of the pyrometallurgical copper smelting is preferably carried out in a copper converter. In the invention, when the oxygen-enriched air is injected, the oxygen-enriched air is injected through a tuyere of the copper converter.
The method for regulating and controlling the pyrometallurgical copper smelting slag type provided by the invention is explained in detail with the following examples, but the method is not to be construed as limiting the scope of the invention.
Comparative example 1
In this example, copper matte produced by a copper smelter was selected and its composition analysis is shown in table 1.
TABLE 1 copper matte composition analysis
A method for converting copper matte comprising the steps of:
100t of copper matte was transferred to a copper converter through a tuyere of the copper converter at 27000Nm3The blowing volume at a flow rate of 82000m3Oxygen-enriched air (the volume percentage of oxygen in the oxygen-enriched air is 21 percent), 1600kg of SiO is added2And obtaining the crude copper and the converting slag. The obtained blown slag was analyzed, and the phase composition thereof is shown in Table 2. Meanwhile, the viscosity of the obtained blowing slag is 0.78 pas, and the mass content of the metal copper in the blowing slag is 9.32%.
TABLE 2 analysis of composition of blown slag obtained in comparative example 1
Example 1
The comparative example 1 is repeated, only the difference is that the volume of oxygen for injecting oxygen-enriched air is 1.10 times of the volume of oxygen for injecting oxygen-enriched air in the example 1, after the oxygen-enriched air injection is finished, the temperature is kept for 10min, so that the converting slag and the crude copper in the smelting system are fully separated and settled, and the furnace body is rotated to finish slag discharging and copper discharging.
The obtained blown slag was analyzed, and the phase composition thereof is shown in Table 3. Meanwhile, the viscosity of the obtained blowing slag is 0.48 pas, and the mass content of the metal copper in the blowing slag is 1.94%.
And carrying out flotation on the obtained blowing slag, and recovering part of copper-containing mineral phase.
And carrying out magnetic separation on flotation slag obtained by flotation, and recovering magnetite and copper-iron ore phases.
TABLE 3 analysis of the composition of the blown slag obtained in example 1
Comparing example 1 with comparative example 1, it can be seen that the oxygen amount is excessively blown by 0.1 times, so that the viscosity of the blown slag is reduced by 0.3 pas and the loss of metallic copper is reduced by 7.38%.
Comparative example 2
In this example, copper matte produced by a copper smelter was selected and its composition analysis is shown in table 4.
TABLE 4 copper matte composition analysis
A method for converting copper matte comprising the steps of:
transferring 100t of copper matte into a copper converter, passing through a tuyere of the copper converter at 25000Nm3The blowing volume at a flow rate of 82000m31200kg of SiO was added to the oxygen-enriched air (the volume percentage of oxygen in the oxygen-enriched air is 21%) (oxygen-enriched air)2And obtaining the crude copper and the converting slag. The obtained blown slag was analyzed, and the phase composition thereof is shown in Table 5. Meanwhile, the viscosity of the obtained blowing slag is 0.72Pa s, and the mass content of the metal copper in the blowing slag is 5.46%.
TABLE 5 analysis of composition of blown slag obtained in comparative example 2
Example 2
And (3) repeating the comparative example 2, wherein the difference is only that the volume of oxygen for injecting oxygen-enriched air is 1.05 times of the volume of oxygen for injecting oxygen-enriched air in the example 1, after the oxygen-enriched air injection is finished, the temperature is kept for 10min, blown slag and copper in a smelting system are fully separated and settled, and a furnace body is rotated to finish slag discharging and copper discharging.
The obtained blown slag was analyzed, and the phase composition thereof is shown in Table 6. Meanwhile, the viscosity of the obtained blowing slag is 0.21 pas, and the mass content of the metallic copper in the blowing slag is 0.05%.
And carrying out flotation on the obtained blowing slag, and recovering part of copper-containing mineral phase.
And carrying out magnetic separation on flotation slag obtained by flotation, and recovering magnetite and copper-iron ore phases.
TABLE 6 analysis of the composition of the blown slag obtained in example 2
As can be seen by comparing example 2 with comparative example 2, the oxygen amount was excessively blown in an amount of 0.05 times, so that the viscosity of the resulting blown slag was reduced by 0.51 pas and the loss of metallic copper in the blown slag was reduced by 5.41%.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for regulating and controlling a pyrometallurgical copper smelting slag type is characterized by comprising the following steps of:
after adding a flux into copper matte, blowing oxygen-enriched air, and then carrying out heat preservation to obtain blowing slag and blister copper;
the volume of oxygen in the blowing oxygen-enriched air is larger than the volume of oxygen required by the complete oxidation of the copper matte.
2. The method of claim 1, wherein the volume of oxygen in the oxygen-enriched air being injected corresponds to equation 1:
V1＝aV2formula 1;
in formula 1, a is 1.01 to 1.1, V1For blowing oxygen volume in oxygen-enriched air, V2The volume of oxygen required for complete oxidation of the copper matte.
3. The method according to claim 1, wherein the holding time is 10-20 min.
4. The method of claim 1, wherein the oxygen-enriched air blowing gas is oxygen-enriched air; the volume content of oxygen in the oxygen-enriched air is 21-26%.
5. The method according to claim 4, wherein the blowing flow rate of the oxygen-enriched air is 25000-30000 Nm3/h。
6. A method according to claim 4 or 5, characterized in that the volume of oxygen needed for the complete oxidation of the matte is the conversion of the S element in the matte to SO2The amount of oxygen required.
7. The method according to claim 1, wherein the temperature of the melt during the blowing of the oxygen-enriched air and the heat preservation is 1160-1300 ℃ independently.
8. The method of claim 1, wherein the fluxing agent comprises one or more of limestone, lime, and quartz.
9. The method according to claim 1, characterized in that the blown slag contains CuFeO2(ii) a CuFeO in the blown slag2The mass content of (A) is 8-25%.
10. The method according to claim 1, wherein the pyrometallurgical copper slag type process is carried out in a copper converter; and oxygen-enriched air in the injected oxygen-enriched air is injected through an air port of the copper converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229647.6A CN114703378A (en) | 2022-03-10 | 2022-03-10 | Method for regulating slag type of pyrometallurgical copper smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229647.6A CN114703378A (en) | 2022-03-10 | 2022-03-10 | Method for regulating slag type of pyrometallurgical copper smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114703378A true CN114703378A (en) | 2022-07-05 |
Family
ID=82168120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210229647.6A Pending CN114703378A (en) | 2022-03-10 | 2022-03-10 | Method for regulating slag type of pyrometallurgical copper smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114703378A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117410A (en) * | 1982-03-26 | 1983-10-12 | Inco Ltd | Process for the continuous production of blister copper |
| CN111334671A (en) * | 2020-04-03 | 2020-06-26 | 河南豫光金铅股份有限公司 | Short-process high-recovery-rate smelting method for chalcocite |
-
2022
- 2022-03-10 CN CN202210229647.6A patent/CN114703378A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117410A (en) * | 1982-03-26 | 1983-10-12 | Inco Ltd | Process for the continuous production of blister copper |
| CN111334671A (en) * | 2020-04-03 | 2020-06-26 | 河南豫光金铅股份有限公司 | Short-process high-recovery-rate smelting method for chalcocite |
Non-Patent Citations (1)
| Title |
|---|
| 袁海滨等: "降低顶吹吹炼过程渣含铜的生产试验", 《中国有色冶金》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3026131B1 (en) | Method and device for depleting copper smelting slag | |
| CN108359814B (en) | Antimony sulfide gold ore oxygen-enriched molten pool smelting method | |
| CN106222426B (en) | A kind of method of separation of Silver, selenium and tellurium in converter flue dust from alloy | |
| WO2015010499A1 (en) | Method and device for producing crude copper | |
| EP1509628A1 (en) | Method for refining concentrate containing precious metals | |
| EP3143169B1 (en) | A method of converting copper containing material | |
| CN106834728A (en) | Process the method and system of vanadium chromium slag | |
| CN114703378A (en) | Method for regulating slag type of pyrometallurgical copper smelting | |
| CN109576507B (en) | Process for continuously separating antimony from gold in antimony-gold concentrate | |
| US4344792A (en) | Reduction smelting process | |
| FI94538C (en) | Process for the manufacture of nickel fine stone and metallised stone | |
| CN109182780B (en) | Method for recovering valuable metals in copper-cobalt white alloy | |
| CN112760480B (en) | Method for improving oxygen pressure leaching efficiency of copper sulfide cobalt concentrate | |
| CN110777257B (en) | Method for selectively leaching iron from low grade nickel matte | |
| RU2015184C1 (en) | Processing method for nickel mattes treatment | |
| JPS61531A (en) | Method for smelting copper sulfide ore | |
| CN109097595A (en) | A kind of method that silver copper oxygen enriched molten bath smelting furnace produces high scum | |
| CN112680558B (en) | Method for extracting vanadium from low-silicon vanadium-containing molten iron | |
| CN115747519B (en) | Comprehensive utilization method of nickel ore resources | |
| CN110016571B (en) | Copper-containing cast iron production system | |
| CN114150157A (en) | Method for diluting copper slag | |
| Wang et al. | Development and Industrial Application of an Improved Lead Oxygen‐Enriched Flash Smelting Process | |
| RU2639195C1 (en) | Method of processing of nickel-containing sulfide copper concentrates | |
| CN115927859A (en) | Method for recycling valuable metals from nickel matte in copper sulfate circulating leaching | |
| CN116970814A (en) | Method for improving growth of copper matte particles in copper slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220705 |
|
| RJ01 | Rejection of invention patent application after publication |