CN113621820A - Smelting method of precious metal smelting slag - Google Patents
Smelting method of precious metal smelting slag Download PDFInfo
- Publication number
- CN113621820A CN113621820A CN202110851320.8A CN202110851320A CN113621820A CN 113621820 A CN113621820 A CN 113621820A CN 202110851320 A CN202110851320 A CN 202110851320A CN 113621820 A CN113621820 A CN 113621820A
- Authority
- CN
- China
- Prior art keywords
- smelting
- slag
- oxide
- mixture
- content
- 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.)
- Granted
Links
- 239000002893 slag Substances 0.000 title claims abstract description 74
- 238000003723 Smelting Methods 0.000 title claims abstract description 65
- 239000010970 precious metal Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 47
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 43
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 34
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000292 calcium oxide Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 28
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 23
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910001948 sodium oxide Inorganic materials 0.000 claims abstract description 19
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011787 zinc oxide Substances 0.000 claims abstract description 17
- 229910052810 boron oxide Inorganic materials 0.000 claims abstract description 15
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 235000012255 calcium oxide Nutrition 0.000 claims description 29
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 26
- 229910021538 borax Inorganic materials 0.000 claims description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 239000004328 sodium tetraborate Substances 0.000 claims description 13
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 13
- 239000010453 quartz Substances 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 8
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 2
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052725 zinc Inorganic materials 0.000 abstract description 5
- 239000011701 zinc Substances 0.000 abstract description 5
- 239000010953 base metal Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000001698 pyrogenic effect Effects 0.000 abstract 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 229910052737 gold Inorganic materials 0.000 description 4
- 229910052763 palladium Inorganic materials 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000002386 leaching Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910004835 Na2B4O7 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000001926 trapping method Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- 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
- C22B11/00—Obtaining noble metals
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
- C22B11/023—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a smelting proportioning method of precious metal smelting slag, which comprises the following steps: drying and grinding the noble metal smelting slag, adding a slagging agent to obtain a mixture, and controlling the content and percentage of each component in the mixture as follows: 30-40% of silicon dioxide, 30-35% of calcium oxide, 4-8% of zinc oxide, 7-10% of sodium oxide, 5-7% of boron oxide and less than 7% of ferrous oxide, adding sulfide ore with the mass fraction of 20% of the total amount of the mixture into the mixture, smelting, and naturally cooling to obtain the sulfonium and reducing slag containing precious metals. The invention can effectively enrich precious metals, solves the adverse effect of zinc oxide on slagging, and provides technical support for the pyrogenic extraction of zinc-containing materials. The produced low-content noble metal reducing slag can be directly discarded, and base metals in the noble metal smelting slag are opened.
Description
Technical Field
The invention belongs to the field of pyrometallurgical processes, and particularly relates to a method for smelting precious metal smelting slag, which can be used for smelting platinum group metal smelting slag and can also be applied to the pyrometallurgical enrichment of other heavy metals and rare metals.
Background
In the process of noble metal separation and refining, the content of noble metals in the produced wastewater is low, and the noble metals in the waste liquid need to be precipitated and recovered by adopting a zinc powder replacement method. Aiming at the produced precious metal precipitation slag, the precious metal content is generally low and is about 0.1-0.3%, and a wet method or a fire method is selected for further enriching and extracting the precious metal for treatment. The wet method comprises acid leaching and alkaline leaching, and because the activity of the precipitated slag is higher, in order to achieve a better enrichment effect, the precious metals in the leaching solution are dispersed in the solution again and need to be recycled repeatedly, and the base metals cannot be opened, so that the amount of the precipitated slag is increased continuously; in order to improve the treatment capacity and treatment efficiency, a nickel matte trapping method is generally adopted to enrich precious metals.
The zinc in the material is in contact with the air during the placing, and most of the zinc exists in the form of oxide. The zinc oxide is a compound difficult to melt, has great influence on the melting temperature of the slag, and increases the viscosity of the melting slag. In the process of smelting and slagging, the improper selection of the slag type proportion causes the serious dispersion of noble metals in slag, the smelting temperature is higher, the slag and matte are difficult to separate, the energy consumption is high, and the yield of the noble metals is lower.
Disclosure of Invention
In order to solve the adverse effect of zinc oxide in the smelting and slagging process, the invention obtains a smelting method with low smelting temperature, good slag-matte separation effect and low noble metal content in slag through experiments on the basis of researching the zinc-containing slag type and the principle.
The purpose of the invention is realized by the following technical scheme:
a smelting method of precious metal smelting slag comprises the following steps:
drying and grinding the noble metal smelting slag, adding a slagging agent, and mixing to obtain a mixture, wherein the content and percentage of each component in the mixture are controlled as follows: 30-40% of silicon dioxide, 30-35% of calcium oxide, 4-8% of zinc oxide, 7-10% of sodium oxide, 5-7% of boron oxide and less than 7% of ferrous oxide, blending sulphide ore with the mass of 15-25% of the total amount of the mixture into the mixture, smelting according to the mixture ratio, and naturally cooling to obtain the noble metal-containing matte and reducing slag.
Preferably, the slagging agent comprises quartz stone, quicklime, sodium carbonate and borax, wherein the addition of the quartz stone is calculated by silicon dioxide, the addition of the quicklime is calculated by calcium oxide, the addition of the sodium carbonate is calculated by sodium oxide, and the addition of the borax is calculated by boron oxide.
Preferably, the sulphide ore is one of nickel sulphide ore, iron sulphide ore and copper sulphide ore.
Preferably, the particle size of the grinding is-80 to-200 mesh.
Preferably, the smelting temperature is 1300-1400 ℃, and the smelting time is 40-70 min.
Preferably, the reducing slag contains less than 10g/t of precious metals.
The invention has the beneficial effects that: 1. the smelting slag has good fluidity and good smelting index, and provides technical support for the pyrometallurgical extraction of zinc-containing materials; 2. the produced low-content noble metal reducing slag can be directly discarded, and base metals in the noble metal smelting slag are opened.
Detailed Description
The invention is further illustrated by the following specific examples.
A smelting method of precious metal smelting slag comprises the following steps: drying the smelting slag of the platinum group metal, grinding the smelting slag to minus 80 meshes, analyzing the smelting slag of the platinum group metal to obtain the mass percentage content of silicon dioxide, calcium oxide, zinc oxide, sodium oxide, ferrous oxide, noble metals Au, Pd, Pt and the like, adding a slagging agent into the smelting slag of the platinum group metal to obtain a mixture, and controlling the content and percentage of each component in the mixture as follows: 30-40% of silicon dioxide, 30-35% of calcium oxide, 4-8% of zinc oxide, 7-10% of sodium oxide, 5-7% of boron oxide and less than 7% of ferrous oxide, blending sulphide ore with the mass of 15-25% of the total amount of the mixture into the mixture, smelting according to the mixture ratio, and naturally cooling to obtain the noble metal-containing matte and reducing slag.
Specific calculation methods are asThe following: and drying the platinum group metal smelting slag, and grinding to minus 80 meshes. The platinum group metal smelting slag 100g contains SiO232.46％，CaO28.5％，ZnO11.9％，Na2O4.5% and FeO 6.5%. According to the mass components of the mixture of platinum group metal smelting slag and a slagging constituent: 36% of silicon dioxide, 33% of calcium oxide, 5.6% of zinc oxide, 9% of sodium oxide, 5% of boron oxide and 3.0% of ferrous oxide, and calculating the addition amount of the slag former.
Sodium carbonate (Na)2O3) Has a molecular weight of 106, and the molecular weight of 62, 62/106-58%.
Borax Na2B4O7·10H2O may also be written as Na2O·2B2O3·10H2O, molecular weight 382, sodium oxide molecular weight 62, content 62/382 ═ 16%; the boron oxide has a molecular weight of 70 and a boron oxide content of 37%.
Let the SiO content be 85.6%2The addition amount of quartz stone is a/g, the addition amount of quicklime containing 89% of CaO is b/g, and the Na content is 58%2The amount of sodium carbonate O added was c/g, containing 37% of B2O3The adding amount of the borax is d/g,
(1) division of (2) yields 0.58c +0.16d ═ 0.214a +3.615 (5)
(1) Division of (3) yields 0.37d ═ 0.214a +3.615 (6)
(1) Div (4) yields 0.89b ═ 0.7847a +1.255 (7)
Substituting (5), (6) and (7) into the formula (1) to obtain:
0.1455a＝6.916，a＝47.531g，
b is 43.318g obtained according to the formula (7),
d is 27.45g obtained according to the formula (6),
c is obtained 16.195g according to equation (5),
and (3) substituting the values of a, b, c and d into the values (8) and (9) to calculate the content of zinc oxide and ferrous oxide, and increasing or decreasing the addition of the slag former when the content of the zinc oxide and the ferrous oxide exceeds or is lower than the proportioning value in the mixture.
In the invention, the used quartz stone, quicklime, sodium carbonate and borax are fluxing agents commonly used in fire metallurgy in the nonferrous metallurgy industry.
Example 1
And drying the platinum group metal smelting slag, and grinding to minus 80 meshes. 100g of platinum group metal smelting slag is sent to a sample for analysis to obtain 32.46 percent of silicon dioxide, 28.5 percent of calcium oxide, 11.9 percent of zinc oxide, 4.5 percent of sodium oxide, 6.5 percent of ferrous oxide, noble metals Au, Pd, Pt and the like, and according to the mass components of the mixture of the platinum group metal smelting slag and the slag former: 36% of silicon dioxide, 33% of calcium oxide, 5.6% of zinc oxide, 9% of sodium oxide, 5% of boron oxide and 3.0% of ferrous oxide, and calculating the addition amount of the slag former. The content of silicon dioxide in the quartz stone is 85.6 percent, the adding amount of the quartz stone is calculated to be 47.531g, the content of calcium oxide in the quicklime is 89 percent, the adding amount of the quicklime is calculated to be 43.318g, the content of sodium oxide in the sodium carbonate is 58 percent, the adding amount of the sodium carbonate is calculated to be 16.195g, the content of boron oxide in the borax is 37 percent, the content of sodium oxide is 16 percent, and the adding amount of the borax is calculated to be 27.459 g. Adding nickel sulfide ore with the mass fraction of 15% of the total amount of the mixture into the mixture, uniformly mixing, smelting at 1350 ℃, keeping the temperature for 40min, naturally cooling, separating matte and reducing slag, enriching and linking precious metals in the matte, and performing subsequent treatment to obtain reducing slag with low content of precious metals, wherein the reducing slag can be discarded when the content of the precious metals is below 10g/t as shown in Table 1.
Noble Metal content (g/t) in the reducing slag produced in Table 1
Example 2
And drying the platinum group metal smelting slag, and grinding to minus 80 meshes. After 100g of platinum group metal smelting slag is fed for analysis, 17.6 percent of silicon dioxide, 19.5 percent of calcium oxide, 11.9 percent of zinc oxide, 9.5 percent of ferrous oxide, noble metals Au, Pd, Pt and the like are obtained, and according to the mass components of the mixture of the platinum group metal smelting slag and the slag former: 30% of silicon dioxide, 32% of calcium oxide, 8% of zinc oxide, 9% of sodium oxide, 5% of boron oxide and 6.85% of ferrous oxide, and calculating the addition amount of the slag former. The content of silicon dioxide in the quartz stone is 85.6 percent, the adding amount of the quartz stone is 29.6g, the content of calcium oxide in the quicklime is 89 percent, the adding amount of the quicklime is 26.92g, the content of sodium oxide in the sodium carbonate is 58 percent, the adding amount of the sodium carbonate is 9.32g, the content of boron oxide in the borax is 37 percent, the content of sodium oxide is 16 percent, and the adding amount of the borax is 19.51 g. And then adding copper sulfide ore with the mass fraction of 20% of the total amount of the mixture into the mixture, uniformly mixing, smelting at 1350 ℃, keeping the temperature for 40min, naturally cooling, separating matte and reducing slag, enriching and linking precious metal in the matte, and performing subsequent treatment to obtain reducing slag with low content of precious metal, wherein the reducing slag can be discarded after being below 10g/t as shown in Table 2.
Table 2 shows the content (g/t) of noble metals in the reducing slag
Example 3
And drying the platinum group metal smelting slag, and grinding to minus 80 meshes. 100g of platinum group metal smelting slag is fed for analysis to obtain 21.6 percent of silicon dioxide, 19.5 percent of calcium oxide, 5.9 percent of zinc oxide, 9.5 percent of ferrous oxide, noble metals Au, Pd, Pt and the like, and according to the mass components of the mixture of the platinum group metal smelting slag and the slag former: 35% of silicon dioxide, 32% of calcium oxide, 4% of zinc oxide, 9% of sodium oxide, 5% of boron oxide and 7% of ferrous oxide, and calculating the addition amount of the slag former. The content of silicon dioxide in the quartz stone is 85.6 percent, the adding amount of the quartz stone is 29.6g, the content of calcium oxide in the quicklime is 89 percent, the adding amount of the quicklime is 26.9g, the content of sodium oxide in the sodium carbonate is 58 percent, the adding amount of the sodium carbonate is 8.8g, the content of boron oxide in the borax is 37 percent, the content of sodium oxide is 16 percent, and the adding amount of the borax is 19.51 g. Adding nickel sulfide ore with the mass fraction of 25% of the total amount of the mixture into the mixture, uniformly mixing, smelting at 1350 ℃, keeping the temperature for 40min, naturally cooling, separating matte and reducing slag, enriching and linking precious metal in the matte, and performing subsequent treatment to obtain reducing slag with low content of precious metal, wherein the reducing slag can be discarded after being below 10g/t as shown in Table 3.
Table 3 shows the content (g/t) of noble metals in the reducing slag
Claims (6)
1. A smelting method of precious metal smelting slag is characterized by comprising the following steps:
drying and grinding the noble metal smelting slag, adding a slagging agent, and mixing to obtain a mixture, wherein the content and percentage of each component in the mixture are controlled as follows: 30-40% of silicon dioxide, 30-35% of calcium oxide, 4-8% of zinc oxide, 7-10% of sodium oxide, 5-7% of boron oxide and less than 7% of ferrous oxide, blending sulphide ore with the mass of 15-25% of the total amount of the mixture into the mixture, smelting according to the mixture ratio, and naturally cooling to obtain the noble metal-containing matte and reducing slag.
2. A method for smelting noble metal smelting slag according to claim 1, wherein the slag former includes quartz stone, quicklime, sodium carbonate and borax, the quartz stone is added in an amount of silica, the quicklime is added in an amount of calcium oxide, the sodium carbonate is added in an amount of sodium oxide, and the borax is added in an amount of boron oxide.
3. A method of smelting precious metal smelting slag according to claim 1, wherein the sulphide ore is one of nickel sulphide ore, iron sulphide ore and copper sulphide ore.
4. A method of smelting precious metal smelting slag according to claim 1, wherein the ground grain size is-80 to-200 mesh.
5. The method of smelting precious metal smelting slag according to claim 1, wherein the smelting temperature is 1300 ℃ to 1400 ℃, and the smelting time is 40min to 70 min.
6. A method of smelting precious metal smelting slag according to claim 1, wherein the reducing slag contains less than 10g/t precious metals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110851320.8A CN113621820B (en) | 2021-07-27 | 2021-07-27 | Smelting method of noble metal smelting slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110851320.8A CN113621820B (en) | 2021-07-27 | 2021-07-27 | Smelting method of noble metal smelting slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113621820A true CN113621820A (en) | 2021-11-09 |
| CN113621820B CN113621820B (en) | 2023-06-02 |
Family
ID=78381139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110851320.8A Active CN113621820B (en) | 2021-07-27 | 2021-07-27 | Smelting method of noble metal smelting slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113621820B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334010A (en) * | 2013-07-15 | 2013-10-02 | 贵研资源（易门）有限公司 | Method for fusing enriched precious metal from spent automotive catalyst |
| CN105400962A (en) * | 2015-11-18 | 2016-03-16 | 金川集团股份有限公司 | Method for recycling platinum group metal from waste catalysts |
| CN110777259A (en) * | 2019-10-23 | 2020-02-11 | 金川集团股份有限公司 | Method for pre-treating platinum group metal refining tailings to enrich precious metals by fire method |
| CN111549225A (en) * | 2020-04-17 | 2020-08-18 | 金川集团股份有限公司 | Method for recovering and enriching precious metals in low-grade precious metal complex material |
-
2021
- 2021-07-27 CN CN202110851320.8A patent/CN113621820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334010A (en) * | 2013-07-15 | 2013-10-02 | 贵研资源（易门）有限公司 | Method for fusing enriched precious metal from spent automotive catalyst |
| CN105400962A (en) * | 2015-11-18 | 2016-03-16 | 金川集团股份有限公司 | Method for recycling platinum group metal from waste catalysts |
| CN110777259A (en) * | 2019-10-23 | 2020-02-11 | 金川集团股份有限公司 | Method for pre-treating platinum group metal refining tailings to enrich precious metals by fire method |
| CN111549225A (en) * | 2020-04-17 | 2020-08-18 | 金川集团股份有限公司 | Method for recovering and enriching precious metals in low-grade precious metal complex material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113621820B (en) | 2023-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhou et al. | Extraction and separation of copper and iron from copper smelting slag: A review | |
| CN110735045B (en) | Method for reducing and smelting platinum group metal in bismuth-enriched waste automobile exhaust catalyst by pyrogenic process | |
| CN110983061B (en) | Method for cooperative recycling of lead-zinc smelting slag and jarosite slag | |
| CN113355525B (en) | Method for processing gold-containing waste residues by synergistic matching of copper smelting slag | |
| CN110551897B (en) | Process for preparing pure copper powder by treating waste circuit board through mechanical and physical method | |
| CN114990347A (en) | Method for recovering platinum group metal in waste catalyst by pyrogenic process smelting | |
| CN106756027A (en) | A kind of method that Sb-Au ore and auriferous pyrite slag cooperate with melting concentration of valuable metals | |
| CN111118303A (en) | Method for preparing zinc hypoxide by oxygen pressure leaching of zinc smelting solid waste slag | |
| CN108823425A (en) | A kind of difficult-treating gold mine fused-extracting enrichment Method for extracting gold | |
| CN103882236A (en) | Method for processing high-sulfur copper dust and recovering copper by employing a wet process | |
| RU2316606C1 (en) | Method for processing sulfide concentrates containing lead, non-ferrous and noble metals | |
| CN1310241A (en) | Reduction and sulfonium making smelting process with non-ferrous sulfide ore and sulfide containing material | |
| CN107083486B (en) | The joint disposal of the waste residue containing precious metal smelting utilizes method | |
| CN110453079B (en) | Method for efficiently recovering silver in lead-silver slag by melting-fuming method | |
| CN112176202A (en) | Antimony smelting method adopting oxygen-enriched side-blown column smelting | |
| CN113621820B (en) | Smelting method of noble metal smelting slag | |
| CN111424177A (en) | Method for enriching platinum group metals from spent automobile exhaust catalyst | |
| Hu et al. | Reductive smelting of spent lead–acid battery colloid sludge in a molten Na 2 CO 3 salt | |
| CN115927876A (en) | Fire refining process for crude tin | |
| CN109609771A (en) | Application of the metal powder in noble metal recycling | |
| CN111254287B (en) | Smelting recovery method of lead-zinc-containing enriched oxide | |
| CN108823426A (en) | A kind of method of rich golden iron sulfonium melting back extraction Concentration of Gold | |
| CN114196831A (en) | Method for inducing and enriching rare and noble metals by adopting low-value metals | |
| CN110408785B (en) | Method for extracting noble metals by copper-based solid waste synergistic smelting enrichment | |
| CN111979423B (en) | Method for reinforced recovery of valuable metals in copper smelting slag by using gypsum 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240416 Address after: 737199 No. 2 Jianshe Road, Jinchuan District, Jinchang City, Gansu Province (east of Beijing Road, west of Heya Road, south of Guiyang Road) Patentee after: Jinchuan Group Copper Gui Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |