CN116676492A - Method for preparing regenerated tin by arc furnace smelting - Google Patents
Method for preparing regenerated tin by arc furnace smelting Download PDFInfo
- Publication number
- CN116676492A CN116676492A CN202310386153.3A CN202310386153A CN116676492A CN 116676492 A CN116676492 A CN 116676492A CN 202310386153 A CN202310386153 A CN 202310386153A CN 116676492 A CN116676492 A CN 116676492A
- Authority
- CN
- China
- Prior art keywords
- tin
- slag
- furnace
- temperature
- arc furnace
- 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
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 229
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000003723 Smelting Methods 0.000 title claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 92
- 239000002699 waste material Substances 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000010891 electric arc Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 15
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 238000007670 refining Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 28
- 239000000779 smoke Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 239000010439 graphite Substances 0.000 claims description 18
- 229910002804 graphite Inorganic materials 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 11
- 239000001110 calcium chloride Substances 0.000 claims description 11
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910021538 borax Inorganic materials 0.000 claims description 8
- 239000004328 sodium tetraborate Substances 0.000 claims description 8
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 8
- 239000006004 Quartz sand Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002817 coal dust Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 13
- 238000001035 drying Methods 0.000 abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000011135 tin Substances 0.000 description 182
- 229910052718 tin Inorganic materials 0.000 description 179
- 238000011084 recovery Methods 0.000 description 22
- 239000011133 lead Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 239000002920 hazardous waste Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000004927 wastewater treatment sludge Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical group C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 2
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 239000001119 stannous chloride Substances 0.000 description 2
- 235000011150 stannous chloride Nutrition 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910001662 tin mineral Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002912 waste gas 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
- C22B25/00—Obtaining tin
- C22B25/02—Obtaining tin by dry processes
-
- 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
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- 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
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
-
- 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
- C22B25/00—Obtaining tin
- C22B25/06—Obtaining tin from scrap, especially tin scrap
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The application discloses a method for preparing regenerated tin by smelting in an electric arc furnace. Drying tin-containing waste, mixing the tin-containing waste with the treated tin slag, mixing the tin-containing waste with other auxiliary materials, granulating, mixing and stirring the mixture with other auxiliary materials, heating, refining by an electric arc furnace, and respectively carrying out the following treatments on gas-liquid-solid tristate after reaction: crushing tin slag formed in the furnace; cooling high-temperature flue gas formed in the furnace, and collecting the cooled high-temperature flue gas by using a dust remover; adding alkaline slag forming agent into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag and the tin slag, combining the treated tin slag and the original tin-containing waste material, mixing, granulating and recycling. The method fully utilizes the waste, and the obtained regenerated tin has pure components, reduces the consumption of natural resources, and is environment-friendly.
Description
Technical Field
The application relates to the technical field of environmental protection, in particular to a method for preparing regenerated tin by smelting in an electric arc furnace.
Background
Tin is used as one of the hardware of gold, silver, copper, iron and tin, and is widely applied in life, but tin ore is used as a limited resource, and excessive exploitation is not suitable for the current energy-saving and environment-friendly national conditions. The tin is gradually oxidized along with the temperature rise in the tin smelting process, becomes tin oxide, is intercepted by a pulse bag-type dust collector of a tail end waste gas treatment facility, is buried in a dust-removing ash and fly ash mode or is treated in other modes, so that not only is the tin resource wasted, but also the subsequent treatment is difficult.
With the rapid development of modern industries such as electronics, photovoltaics and the like, the tin consumer market is continuously vigorous, a large amount of tin-containing secondary resources such as tin-containing waste materials, electroplating sludge, wave soldering slag and the like are generated, and crude tin recovered from the tin-containing secondary resources contains a large amount of impurities such as copper, nickel, silver, bismuth, lead and the like, so that the treatment difficulty is far greater than that of crude tin produced by primary ores. The traditional crude tin refining technology has the defects of difficult impurity removal, long process flow, low tin direct yield, high operation cost and high environmental protection pressure, and severely restricts the high-quality development of the tin industry; meanwhile, the modern industrial application puts higher requirements on the quality of refined tin, the standard of tin ingots is increasingly harsh, the crude tin refining technology is required to be upgraded, various grades of refined tin are produced in a green short process, and the stable and healthy development of the modern high-technology industry in China is ensured.
Hazardous waste refers to solid waste with hazardous characteristics listed in the national hazardous waste directory or identified according to the national hazardous waste identification standards and methods. In the national hazardous waste directory, the hazardous waste containing tin includes: waste mineral oil produced by a tin plating and soldering tin recovery process, waste residue and waste water treatment sludge produced by sensitization treatment using stannous chloride, waste residue and waste water treatment sludge produced by activation treatment using palladium and tin salt, and the like. The waste has one or more dangerous characteristics such as corrosiveness, toxicity, inflammability, reactivity or infectivity, and the like, and has high treatment difficulty and high treatment cost, so that a set of process is needed to be developed for recycling and reducing the tin-containing waste aiming at the tin-containing dangerous waste.
Disclosure of Invention
The application aims to: aiming at the defects in the prior art, the application refines metal from dangerous waste to obtain regenerated tin, and the content of the regenerated tin is more than or equal to 99.5 percent.
The technical scheme is as follows: the content of the tin-containing waste treated by the method is relatively wide, the tin-containing waste can be high or low, but the advantage of high content is more obvious, and in the tin-containing waste, tin is mainly in an oxidation state and needs to be reduced and smelted. The treatment object of the present application may be a hazardous waste containing tin, comprising: waste mineral oil produced by a tin plating and soldering tin recovery process, waste residue and waste water treatment sludge produced by sensitization treatment using stannous chloride, waste residue and waste water treatment sludge produced by activation treatment using palladium and tin salt, and the like. Which may contain: copper, sodium, potassium, manganese, zinc, iron, lead, indium, bismuth, antimony, silicon, sulfur, arsenic, aluminum oxide, magnesium oxide, calcium oxide, titanium oxide.
The basic principle of the application is as follows:
under the condition of high temperature (1000-1400 ℃), a reducing agent and a reaction slagging auxiliary agent are added, and under the combined action of the reducing agent and the auxiliary agent, the tin oxide and impurity elements are separated from each other by the oxidation state of tin and the oxides of certain impurities (such As Al, sb, as and the like) in the smelting process, and the specific reaction is As follows:
2C+O 2 ＝2CO
SnO 2 +CO＝Sn+CO 2
impurity metal meo+co=me+co 2
The refractory oxide or high-melting point oxide (such as Ca, si, al, etc.) and flux (lime, borax, quartz, etc.) form slag, the crude tin and slag are not melted (including some impurity metals) and are layered with different specific gravity, thus optimizing control conditions and achieving the purpose of producing high-grade crude tin.
The method comprises the steps of firstly drying raw tin slag with higher water content, carrying out pre-enrichment including roughing, chemical enrichment and other procedures if process conditions permit, adding auxiliary materials and reducing agents, uniformly mixing, adding an electric furnace, heating and smelting, putting the molten liquid into a slag ladle after the slag discharge condition is reached, and removing scum to obtain crude tin. In order to ensure safe production, excessive materials cannot be added every time so as not to cause the overflow of the molten metal to burn out the furnace body and be unsafe, and meanwhile, the temperature of the molten metal is observed or measured for multiple times in the smelting process, the temperature monitoring is carried out according to the process, the process conditions are precisely controlled, and high-quality crude tin is produced.
Specifically, the method for preparing regenerated tin by arc furnace smelting comprises the following steps: drying tin-containing waste, mixing the tin-containing waste and the treated tin slag, granulating, mixing the tin-containing waste and other auxiliary materials in proportion, stirring after the mixing is completed, feeding the mixture into an electric arc furnace, feeding the mixture into the electric arc furnace, heating the mixture at a certain heating rate, and ensuring stable temperature in the furnace, wherein the refining time of the electric arc furnace is 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1400 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after being cooled, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃; adding alkaline slag forming agent into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag and the tin slag, combining the treated tin slag and the original tin-containing waste material, mixing, granulating and recycling.
Specifically, the auxiliary materials and the proportion thereof are, based on the total amount of raw materials of 1, 2-5% of quartz sand, 0.1-0.1% of borax, 3-8% of sodium carbonate and 10-20% of coal dust.
Specifically, after the ingredients are finished, stirring is carried out for 10-20 minutes by using a rotary stirrer, and a mobile screw conveyor and a discharge valve of the stirrer are opened for feeding.
Specifically, the temperature is raised by adopting a programmed gradient, the temperature is raised from room temperature to 200 ℃ within 2 hours, the temperature is kept constant for 1 hour, the temperature is raised from 200 to 500 ℃ within 2 hours, the temperature is kept constant for 1 hour, and the temperature is raised from 500 ℃ to 1000 ℃ within 2 hours. When the temperature reaches 1000 ℃, the volatilization rates of lead and tin reach the highest. When the roasting temperature exceeds 1100 ℃, the particle size of the obtained reductive chlorination clinker pellets is obviously reduced, the pellets are mutually adhered, and the reductive chlorination clinker pellets are compact and hard and are difficult to crush. After the temperature exceeds 1400 ℃, clinker pellets are molten, so that gaps in the pellets are blocked, reducing gas is prevented from entering the pellets, iron cannot be reduced, and volatilization of metal chlorides such as lead, zinc, tin and the like is prevented. In addition, when the roasting temperature is lower, the volatilization rate of lead is higher than that of zinc and tin, and a gradient heating method can be adopted in the production process to obtain a product containing more lead at a lower temperature; then the roasting temperature is increased, and a product with higher zinc and tin content is obtained at high temperature. In summary, the feasible temperature range is 1000-1400 ℃, and the optimal temperature range is 1000-1100 ℃.
The improved technical scheme is as follows: drying tin-containing waste, adding graphite when mixing with treated tin slag, grinding by a rod mill, selecting particles with the particle size smaller than 120mm, adding calcium chloride and water, granulating, and then continuing the subsequent steps. And the chloridized volatile matters of the tin can be collected from the smoke dust, and the dust is removed and then returned to the initial stage for recycling treatment, so that the recovery efficiency of the tin is further improved. So that the recovery rate of tin can reach more than 99.95 percent.
The specific scheme is as follows: drying tin-containing waste, mixing with treated tin slag, adding graphite, grinding by a rod mill, selecting particles with the particle size smaller than 120mm, adding calcium chloride and water, granulating, controlling the particle size to be more than 10mm, proportioning with other auxiliary materials in proportion, stirring after proportioning is finished, feeding into an electric arc furnace, delivering electricity, heating according to a certain heating rate, ensuring stable temperature in the furnace, and refining in the electric arc furnace for 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1400 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, after being cooled, the high-temperature smoke gas is 200-300 ℃, and is collected by a dust remover, and after organic matters are removed, the smoke gas is combined with tin slag; adding alkaline slag forming agent into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag and the tin slag, combining the treated tin slag and the original tin-containing waste material, mixing, granulating and recycling.
Specifically, the graphite dosage is 15-25% of the total mass of the raw materials, and the graphite dosage directly influences the strength of the reducing atmosphere in the process. The volatilization rate of lead is less affected by the amount of graphite used. When the graphite amount is small, the lead shows higher volatilization rate, and as the graphite amount increases, the fluctuation is small, and if the graphite amount is small, the requirement in the reaction process cannot be met. With the increase of the graphite dosage, the volatilization rates of lead, zinc and tin are gradually increased. When the graphite content exceeds 20%, the graphite tends to change smoothly, and even if the graphite content is increased, the metal volatility or magnetic susceptibility cannot be effectively improved. Therefore, the graphite is used in an amount of 20% of the total mass of the raw material as the optimum amount.
Specifically, the consumption of the calcium chloride is 5-15% of the total mass of the raw materials, and when the consumption of the calcium chloride is small, the chlorination atmosphere is weak and insufficient to completely generate corresponding chlorides to volatilize, so that the volatilization rate of lead, zinc and tin is low. If the amount of calcium chloride is increased, the chloridizing atmosphere is strong, and the volatilization rates of lead, zinc and tin are increased, however, excessive chlorine gas has strong corrosion to equipment. Therefore, the optimal calcium chloride dosage is 10 percent of the tin slag mass.
The beneficial effects are that: tin is a rare and expensive heavy metal, and the regenerated tin is prepared from the tin-containing waste (especially dangerous waste), so that the environment can be protected from pollution, and secondary resources recovered from silver-containing tin can be fully utilized to supplement the shortages of world primary tin mineral resources. The production cost of the regenerated tin is generally lower than that of the original tin, and the tin-containing waste materials used for producing the regenerated tin.
The regenerated tin obtained by the method has purer components, and the raw ore tin contains a large amount of impurities. The method of the application can effectively reduce damage to mines, reduce consumption of natural resources, and lead crude tin to pollute the environment and greatly damage natural resources.
After the tin slag and the dust are repeatedly mixed, the tin content of the glass tin slag is less than or equal to 1 percent. After the high-temperature melting refined tin is recycled, the harmless treatment effect can be achieved.
The single pass recovery rate of the regenerated tin obtained by the application is more than 96%, the multi-pass recovery rate is more than 99%, and the multi-pass recovery rate is more than 99.9% by adopting the improved method.
Drawings
FIG. 1 is a schematic flow chart of the method of the application
Detailed Description
The technical scheme of the present application is described in detail by examples below, but the scope of the present application is not limited to the examples.
Drying tin-containing waste (tin content (weight) about 20%, and the rest is Fe, pb, sb, bi, al, as, si, ag (trace)), controlling water content to be less than or equal to 3%, mixing with treated tin slag, mixing, granulating, and controlling granularity above 10 mm. And then mixing the raw materials with other auxiliary materials according to a proportion, wherein the auxiliary materials and the proportion thereof are, based on the total amount of the raw materials, 2-5% of quartz sand, 0.1-0.1% of borax, 3-8% of sodium carbonate and 10-20% of coal dust. After the ingredients are finished, stirring is carried out for 10-20 minutes by using a rotary stirrer, a mobile screw conveyor and a stirrer discharging valve are opened for feeding, the materials are fed into an electric arc furnace, the materials are fed for heating, the temperature is raised according to a certain heating rate, the temperature is raised by adopting a program gradient, the temperature is raised from room temperature to 200 ℃ within 2 hours, the temperature is kept constant for 1 hour, the temperature is raised from 200 to 500 ℃ within 2 hours, the temperature is kept constant for 1 hour, and the temperature is raised from 500 ℃ to 1000 ℃ within 2 hours. Ensuring stable temperature in the furnace, and refining the electric arc furnace for 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1100 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after being cooled, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃; adding alkaline slag former (calcium bicarbonate) into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag with the tin slag, combining the treated tin slag with the initial tin-containing waste material, mixing, granulating, and recycling.
Example 1
(1) Drying and granulating tin-containing waste, controlling the granularity to be more than 10mm, and proportioning with other auxiliary materials according to a proportion: calculated by the total amount of the raw materials, the quartz sand accounts for 3 percent, the borax accounts for 0.2 percent, the sodium carbonate accounts for 5 percent and the pulverized coal accounts for 15 percent;
(2) After the batching is finished, stirring for 15 minutes by using a rotary stirrer, and opening a mobile screw conveyor and a discharge valve of the stirrer to feed;
(3) Feeding materials into a hearth, preparing to start power transmission and heating, and heating according to a certain heating rate (heating from room temperature to 200 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 200 to 500 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 500 ℃ to 1000 ℃ in 2 hours, ensuring the temperature stability in the hearth, ensuring the tin recovery rate, and refining tin ingots in a normal electric arc furnace for 2-3 hours;
(4) When the temperature in the single furnace is stable to 1100 ℃, the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after cooling, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃;
(5) After the tin slag is crushed, the tin slag is circulated to an initial working section and repeatedly refined, so that the recovery rate of tin is ensured;
(6) Adding alkaline slag former (NaHCO) into tin water 3 ) Stirring for 5 minutes later to ensure that the tin content is more than or equal to 99.5 percent; and (3) obtaining regenerated tin and tin slag, combining the tin slag with the previous tin slag, and recycling the treated tin slag to the initial working section for repeated extraction.
The purity of the prepared regenerated tin is more than or equal to 99.5%, and the unit cell parameters are as follows: a=0.5832 nm, c= 0.3181nm, 4 Sn atoms in the unit cell, density 7.49g/cm 3 Hardness was 2.1. The tin recovery rate of one pass is more than or equal to 95 percent, and the tin recovery rate of multiple passes is more than or equal to 99 percent.
Example 2
(1) Drying and granulating tin-containing waste, controlling the granularity to be more than 10mm, and proportioning with other auxiliary materials according to a proportion: calculated by the total amount of the raw materials, the quartz sand accounts for 2 percent, the borax accounts for 0.1 percent, the sodium carbonate accounts for 3 percent and the coal dust accounts for 10 percent;
(2) After the batching is finished, stirring for 10 minutes by using a rotary stirrer, and opening a mobile screw conveyor and a discharge valve of the stirrer to feed;
(3) Feeding materials into a hearth, preparing to start power transmission and heating, and heating according to a certain heating rate (heating from room temperature to 200 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 200 to 500 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 500 ℃ to 1000 ℃ in 2 hours, ensuring the temperature stability in the hearth, ensuring the tin recovery rate, and refining tin ingots in a normal electric arc furnace for 2-3 hours;
(4) When the temperature in the single furnace is stabilized to 1000 ℃, the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after cooling, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃;
(5) After the tin slag is crushed, the tin slag is circulated to an initial working section and repeatedly refined, so that the recovery rate of tin is ensured;
(6) Adding alkaline slag former (NaHCO) into tin water 3 ) Stirring for 3 minutes later to ensure that the tin content is more than or equal to 99.5 percent; and (3) obtaining regenerated tin and tin slag, combining the tin slag with the previous tin slag, and recycling the treated tin slag to the initial working section for repeated extraction.
Example 3
(1) Drying and granulating tin-containing waste, controlling the granularity to be more than 10mm, and proportioning with other auxiliary materials according to a proportion: calculated by the total amount of the raw materials being 1, quartz sand accounts for 5 percent, borax 0.1 percent, sodium carbonate 8 percent and coal dust 20 percent;
(2) After the batching is finished, stirring for 20 minutes by using a rotary stirrer, and opening a mobile screw conveyor and a discharge valve of the stirrer to feed;
(3) Feeding materials into a hearth, preparing to start power transmission and heating, and heating according to a certain heating rate (heating from room temperature to 200 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 200 to 500 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 500 ℃ to 1000 ℃ in 2 hours, ensuring the temperature stability in the hearth, ensuring the tin recovery rate, and refining tin ingots in a normal electric arc furnace for 3 hours;
(4) When the temperature in the single furnace reaches 1400 ℃, the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after cooling, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃;
(5) After the tin slag is crushed, the tin slag is circulated to an initial working section and repeatedly refined, so that the recovery rate of tin is ensured;
(6) Adding alkaline slag former (NaHCO) into tin water 3 ) Stirring for 5 minutes later to ensure that the tin content is more than or equal to 99.5 percent; and (3) obtaining regenerated tin and tin slag, combining the tin slag with the previous tin slag, and recycling the treated tin slag to the initial working section for repeated extraction.
The improved concrete technical scheme is as follows: drying tin-containing waste (tin-containing waste, the tin content (trace) is 20%, the balance is Fe, pb, sb, bi, al, as, si, ag), controlling the water content to be less than or equal to 3%, mixing with treated tin slag, adding graphite (the graphite consumption is 20% of the total mass of the raw materials), grinding by a rod mill, selecting particles with the particle size of less than 120mm, adding calcium chloride (the calcium chloride consumption is 10% of the total mass of the raw materials) and water, granulating, controlling the particle size to be more than 10mm, proportioning with other auxiliary materials in proportion, stirring, feeding into an electric arc furnace, transmitting electricity, heating according to a certain heating rate, (heating from room temperature to 200 ℃ in 2 hours, keeping the temperature for 1 hour in 2 hours from 200 to 500 ℃, keeping the temperature for 1 hour in 2 hours from 500 ℃ to 1000 ℃), and ensuring the temperature stability in the electric arc furnace, and refining time to 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1400 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, after being cooled, the high-temperature smoke gas is 200-300 ℃, and is collected by a dust remover, and after organic matters are removed, the smoke gas is combined with tin slag; adding alkaline slag former (calcium bicarbonate) into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag with the tin slag, combining the treated tin slag with the initial tin-containing waste material, mixing, granulating, and recycling.
Example 4 (improvement)
(1) Drying tin-containing waste, mixing with treated tin slag, adding graphite, grinding by a rod mill, selecting particles with the particle size smaller than 120mm, adding calcium chloride and water, granulating, controlling the particle size to be more than 10mm, and proportioning with other auxiliary materials according to a proportion: calculated by the total amount of the raw materials, the quartz sand accounts for 3 percent, the borax accounts for 0.2 percent, the sodium carbonate accounts for 5 percent and the pulverized coal accounts for 15 percent;
(2) After the batching is finished, stirring for 15 minutes by using a rotary stirrer, and opening a mobile screw conveyor and a discharge valve of the stirrer to feed;
(3) Feeding materials into a hearth, preparing to start power transmission and heating, and heating according to a certain heating rate (heating from room temperature to 200 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 200 to 500 ℃ in 2 hours, keeping the temperature for 1 hour, heating from 500 ℃ to 1000 ℃ in 2 hours, ensuring the temperature stability in the hearth, ensuring the tin recovery rate, and refining tin ingots in a normal electric arc furnace for 2-3 hours;
(4) When the temperature in the single furnace is stable to 1100 ℃, the high-temperature flue gas formed in the furnace is usually about 900-1000 ℃, after cooling, the high-temperature flue gas is 200-300 ℃, the high-temperature flue gas is collected by a dust remover, and after organic matters are removed, the high-temperature flue gas is combined with tin slag;
(5) After the tin slag is crushed, the tin slag is circulated to an initial working section and repeatedly refined, so that the recovery rate of tin is ensured;
(6) Adding alkaline slag former (NaHCO) into tin water 3 ) Stirring for 5 minutes later to ensure that the tin content is more than or equal to 99.5 percent; and (3) obtaining regenerated tin and tin slag, combining the tin slag with the previous tin slag, and recycling the treated tin slag to the initial working section for repeated extraction.
The purity of the prepared regenerated tin is more than or equal to 99.6%, and the unit cell parameters are as follows: a=0.5832 nm, c= 0.3181nm, 4 Sn atoms in the unit cell, density 7.49g/cm 3 Hardness was 2.1. The tin recovery rate of one pass is more than or equal to 96 percent, and the tin recovery rate of multiple passes is more than or equal to 99.5 percent.
The foregoing description is only of the preferred embodiments of the application and is not intended to limit the application. The embodiment of the application can be seen that the application has incomparable advantages in environmental protection, energy saving, consumption reduction, improvement of recovery (direct) yield, accurate comprehensive recovery and process flexibility. And, it can be seen that the improved scheme is more advantageous in terms of multi-pass recovery of regenerated tin.
Claims (10)
1. A method for preparing regenerated tin by smelting in an electric arc furnace is characterized in that tin-containing waste is dried, the water content is controlled to be less than 3%, the tin-containing waste and treated tin slag are mixed, mixed and granulated, then the mixture is mixed with other auxiliary materials in proportion, stirred, fed into the electric arc furnace, fed into power transmission and heated, and heated according to a certain heating rate, so that the temperature in the furnace is stable, and the refining time of the electric arc furnace is 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1400 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, and after being cooled, the high-temperature smoke gas is collected by a dust remover at 200-300 ℃; adding alkaline slag forming agent into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag and the tin slag, combining the treated tin slag and the original tin-containing waste material, mixing, granulating and recycling.
2. The method for preparing regenerated tin by arc furnace smelting according to claim 1, wherein the granularity of the pelletization is controlled to be more than 10 mm.
3. The method for preparing regenerated tin by arc furnace smelting according to claim 1, wherein the auxiliary materials and the proportion thereof are, based on 1 total raw material, 2-5% of quartz sand, 0.1-0.5% of borax, 3-8% of sodium carbonate and 10-20% of coal dust.
4. The method for preparing regenerated tin by arc furnace smelting according to claim 1, wherein after the proportioning is completed, stirring is performed for 10-20 minutes by using a rotary stirrer, and a mobile screw conveyor and a stirrer discharge valve are opened for feeding.
5. The method for preparing regenerated tin by arc furnace smelting according to claim 1, wherein the temperature is raised by a programmed gradient from room temperature to 200 ℃ within 2 hours, the temperature is kept constant for 1 hour from 200 to 500 ℃ within 2 hours, and the temperature is kept constant for 1 hour, and the temperature is kept constant for 500 to 1000 ℃ within 2 hours.
6. According to the weightsThe method for preparing regenerated tin by arc furnace smelting according to claim 1, wherein the alkaline precipitant is CO 2 、NaHCO 3 、Ca(OH) 2 、H 2 SO 4 。
7. The method for preparing regenerated tin by smelting in an electric arc furnace according to claim 1, which is characterized in that tin-containing waste is dried, the tin-containing waste is mixed with treated tin slag, graphite is added, a rod mill is adopted for grinding, particles with the particle size smaller than 120mm are selected, calcium chloride and water are added for granulating, the granularity is controlled to be more than 10mm, and then the mixture is proportioned with other auxiliary materials, stirred, fed into the electric arc furnace, fed into power transmission and heated, and heated according to a certain heating rate, so that the temperature in the furnace is ensured to be stable, and the refining time of the electric arc furnace is 2-3 hours; the temperature in the furnace is stably controlled between 1000 ℃ and 1400 ℃, and the reacted gas, liquid and solid states are respectively treated as follows: crushing tin slag formed in the furnace; the high-temperature smoke gas formed in the furnace is usually about 900-1000 ℃, after being cooled, the high-temperature smoke gas is 200-300 ℃, and is collected by a dust remover, and after organic matters are removed, the smoke gas is combined with tin slag; adding alkaline slag forming agent into molten tin formed in the furnace, stirring to obtain tin slag and regenerated tin, combining the tin slag and the tin slag, combining the treated tin slag and the original tin-containing waste material, mixing, granulating and recycling.
8. The method for producing regenerated tin by arc furnace smelting according to claim 7, wherein the temperature in the furnace is stably controlled between 1000 ℃ and 1100 ℃.
9. The method for producing regenerated tin by electric arc furnace smelting according to claim 7, wherein the amount of graphite is 10-25% of the total mass of the raw material.
10. The method for preparing regenerated tin by arc furnace smelting according to claim 7, wherein the amount of calcium chloride is 5-15% of the total mass of the raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310386153.3A CN116676492A (en) | 2023-04-12 | 2023-04-12 | Method for preparing regenerated tin by arc furnace smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310386153.3A CN116676492A (en) | 2023-04-12 | 2023-04-12 | Method for preparing regenerated tin by arc furnace smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116676492A true CN116676492A (en) | 2023-09-01 |
Family
ID=87784256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310386153.3A Pending CN116676492A (en) | 2023-04-12 | 2023-04-12 | Method for preparing regenerated tin by arc furnace smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116676492A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734270A (en) * | 2016-03-14 | 2016-07-06 | 中南大学 | Additive for reinforcing reduction roasting of tin-containing materials to recover tin and method for separating and recovering tin from tin-containing materials |
| CN109338111A (en) * | 2018-11-27 | 2019-02-15 | 贵州省兴安环保科技有限公司 | A method of from recycling valuable metal in material containing zinc-tin |
| CN111172409A (en) * | 2020-01-19 | 2020-05-19 | 河南豫光金铅股份有限公司 | Recovery smelting process of tin-containing material |
| CN114196828A (en) * | 2021-10-29 | 2022-03-18 | 昆明理工大学 | FeO-SiO based on high FeO content2Vulcanization volatilization method of tin-containing material of-CaO ternary system slag |
-
2023
- 2023-04-12 CN CN202310386153.3A patent/CN116676492A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734270A (en) * | 2016-03-14 | 2016-07-06 | 中南大学 | Additive for reinforcing reduction roasting of tin-containing materials to recover tin and method for separating and recovering tin from tin-containing materials |
| CN109338111A (en) * | 2018-11-27 | 2019-02-15 | 贵州省兴安环保科技有限公司 | A method of from recycling valuable metal in material containing zinc-tin |
| CN111172409A (en) * | 2020-01-19 | 2020-05-19 | 河南豫光金铅股份有限公司 | Recovery smelting process of tin-containing material |
| CN114196828A (en) * | 2021-10-29 | 2022-03-18 | 昆明理工大学 | FeO-SiO based on high FeO content2Vulcanization volatilization method of tin-containing material of-CaO ternary system slag |
Non-Patent Citations (3)
| Title |
|---|
| 《云南省志•冶金工业志》编纂委员会编: "《云南省志 卷26冶金工业志》", 31 May 1995, 昆明：云南人民出版社, pages: 182 * |
| 中国有色金属工业协会主编: "《中国锡业》", 31 August 2012, 北京：冶金工业出版社, pages: 66 - 67 * |
| 翟忠标等: "锡渣还原氯化焙烧—磁选回收有价金属试验", 《矿冶》, vol. 29, no. 4, 31 August 2020 (2020-08-31), pages 40 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104911356B (en) | A kind of solid waste gas ash, the comprehensive recycling process of vanadium slag containing zinc-iron | |
| CN101886174B (en) | Process for refining high-purity bismuth from bismuth-containing material generated from anode mud recovery | |
| CN102286665A (en) | Comprehensive recovery method for complicated materials containing arsenic and valuable metal slag dust | |
| CN1800423B (en) | Process for producing antimony white using slag from lead anode mud processing | |
| CN102586600A (en) | Process for recycling valuable metal from lead copper matte | |
| CN110004298A (en) | A kind of industry dangerous waste Resource comprehensive utilization method | |
| CN106676269A (en) | Method for treating cyanide tailings | |
| CN103266225A (en) | Side-blown furnace reduction smelting technology for lead anode mud | |
| CN106011497A (en) | Method for recycling lead bullion from lead copper matte | |
| CN108754170A (en) | A kind of full constituent method of comprehensive utilization of copper ashes | |
| EP3768869A1 (en) | Method for the selective recovery of tin and a reactor for use in said method | |
| CN101812598B (en) | Method for simultaneously smelting zinc dipping slag and zinc kiln slag by using blast furnace | |
| CN105349793A (en) | Combined treatment method for goethite slag and lead reducing slag | |
| CN108220624A (en) | A kind of refining of lead bullion alkaline residue processing method | |
| CN111074076B (en) | Comprehensive utilization system and method for metallurgical solid waste | |
| CN111575500A (en) | Method for treating zinc-containing dangerous solid waste and zinc ore by combining chlorination roasting with ammonia process electrodeposition | |
| CN116676492A (en) | Method for preparing regenerated tin by arc furnace smelting | |
| CN112143908B (en) | Smelting process for treating complex gold ore | |
| CN101338373B (en) | Method for producing smelting copper-cobalt oxidation ore by blast furnace | |
| CN109306410B (en) | Method for separating antimony and lead from lead-containing antimony slag by pyrogenic process | |
| CN112080644B (en) | Method for cooperatively treating zinc-containing dust and polycrystalline silicon cutting waste material in main channel of blast furnace | |
| CN114959293A (en) | Smelting method of low-lead silver concentrate | |
| CN111979423B (en) | Method for reinforced recovery of valuable metals in copper smelting slag by using gypsum slag | |
| CN114231743A (en) | Method for preparing indium tin alloy by reducing ITO waste target at high temperature | |
| CN1566379A (en) | Copper-zinc separation method during smelting in a blast furnace |
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 |