CN101768650A - Method for processing high-iron and low-tin material - Google Patents
Method for processing high-iron and low-tin material Download PDFInfo
- Publication number
- CN101768650A CN101768650A CN201010039161A CN201010039161A CN101768650A CN 101768650 A CN101768650 A CN 101768650A CN 201010039161 A CN201010039161 A CN 201010039161A CN 201010039161 A CN201010039161 A CN 201010039161A CN 101768650 A CN101768650 A CN 101768650A
- Authority
- CN
- China
- Prior art keywords
- tin
- iron
- low
- ore
- 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
- 239000000463 material Substances 0.000 title claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 19
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003723 Smelting Methods 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000007670 refining Methods 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000002829 reductive effect Effects 0.000 claims description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 229910000805 Pig iron Inorganic materials 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims description 2
- 239000000571 coke Substances 0.000 claims description 2
- NNIPDXPTJYIMKW-UHFFFAOYSA-N iron tin Chemical compound [Fe].[Sn] NNIPDXPTJYIMKW-UHFFFAOYSA-N 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 229910001018 Cast iron Inorganic materials 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000011135 tin Substances 0.000 description 33
- 229910052718 tin Inorganic materials 0.000 description 30
- 230000008018 melting Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- VKFHLZKFEVJKCC-UHFFFAOYSA-N [Bi].[Pb].[Sn].[Cu] Chemical compound [Bi].[Pb].[Sn].[Cu] VKFHLZKFEVJKCC-UHFFFAOYSA-N 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
- 238000011284 combination treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for processing a high-iron and low-tin material, in particular to a method adopting an ore-smelting electric furnace and a vacuum induction furnace to jointly process high-melting and low-tin materials (mixed materials). The method of the invention comprises the following steps: 1) drying the high-iron and low-tin material, adding ingredients in proportions according to the specific content of the material, evenly mixing, adding in the ore-smelting electric furnace, heating for 2-6h, and retailoring at the temperature of 1350-1600 DEG C to enable tin and iron in the material to enter an alloy liquid layer; 2) volatilizing the tin by placing the alloy liquid in the vacuum induction furnace, preserving the furnace temperature to be 1600-1900 DEG C and the vacuum degree to be less than or equal to 10Pa to separate the tin from the iron so as to obtain crude tin and high grade cast iron; and 3) refining the crude tin to obtain refined tin. The invention is simple in process, easy in operation, small in investment, is environment-friendly, and is especially suitable for processing high-melting materials.
Description
Technical field:
The present invention relates to a kind of treatment process of high-iron and low-tin material, particularly adopt the method for ore-smelting furnace, vacuum induction furnace combination treatment high-melting-point, low stanniferous material (assorted material).
Background technology:
Treatment process at high-iron and low-tin material mainly is a fuming furnace sulfiding volatilization treatment process now.This method mainly is to have the higher vapour pressure and the characteristics of high volatility according to SnS, and the tin in the material is volatilized with the SnS form, and in the furnace gas process of cooling, SnS is oxidized to SnO
2Be suspended in the furnace gas, at last by sedimentation with gather dust and obtain SnO
2Flue dust is to reach the purpose of enrichment, recovery tin.
Electrosmelting in the non-ferrous metal metallurgy be with electric energy by electric arc that electrode and furnace charge produced or directly make the high temperature that resistance produces and come melting materials capable by molten slag, and any temperature of may command melt temperature in 1350～1600 ℃ of scopes.Electric melting furnace is mainly used in the material that melting contains a large amount of infusibility gangue contents, in the competent area of electric power resource, also is used for the general ore of melting.
Vacuum induction furnace is a kind of melting stove that induction heating and vacuum melting technology merge mutually, and it can obtain the temperature of melt temperature in 1600～1900 ℃ of scopes, is particularly suitable for handling the high-melting-point material, and operating environment is relatively good.
But how that the technology of ore-smelting furnace and vacuum induction furnace is fine integrated, be used for high-iron and low-tin material, particularly the processing of high-melting-point material (〉=1300 ℃) provides an effective way, is the important topic that exploration and exploitation are badly in need of in this area.
Summary of the invention:
The object of the present invention is to provide a kind of the employing to exchange or the method for DC-ore-heating electric furnace and vacuum induction furnace combination treatment high-iron and low-tin material, its technology is simple, and processing ease invest lessly, and ecology close friend is particularly suitable for handling the high-melting-point material.
Solving the processing step that technical problem of the present invention takes is:
The first step after the high-iron and low-tin material drying, is looked concrete the content of material, adds the batching mixing by proportioning, adds in the ore-smelting furnace, heats 2 hours～6 hours, 1350 ℃～1600 ℃ retailoring, makes tin, iron in the material enter the alloy liquid layer;
Second step, alloy liquid is put into the volatilization that vacuum induction furnace carries out tin, keep furnace temperature at 1600 ℃～1900 ℃, vacuum tightness≤10Pa separates tin iron, obtains the thick tin and the high-grade pig iron;
In the 3rd step, thick tin obtains refined tin through after the refining.
Technical scheme of the present invention also comprises:
High-iron and low-tin material is ore deposit or the assorted material of stanniferous 1.5wt%～15wt%, iron content 30wt%～45wt%, select for use reductive agent be coal, coke or carbon black solid one or more, and the reductive agent consumption is 5%～10% of a weight of material.
In above-mentioned step 1, the quality proportioning of ore-smelting furnace retailoring is mineral 100: quartz sand 1～7: lime 1～10: reductive agent 5～10, and quartz sand and lime are looked concrete material content and are selected whole or wherein a kind of.
When containing the composition of influential subsequent disposal for product requirement in the higher or material, the alloy liquid after ore-smelting furnace is handled need take off in advance earlier and live together reason before entering next step.
The finished product scheme of the present invention can be the 1. thick tin and the high-grade pig iron; 2. the refined tin and the high-grade pig iron.
When adopting the DC-ore-heating electric furnace to handle high-iron and low-tin material, available single or many electrode direct current furnaces, the hearth electrode of electric furnace is the electrode of air-cooled vane-type.
The invention has the beneficial effects as follows:
1, made full use of the advantage of ore-smelting furnace melting, bath temperature is regulated easily and can be reached comparatively high temps; Exhaust gas volumn is lower; The thermo-efficiency height can reach 60%～80%; The quantity of slag is few, and the smelting metal total yield is high.China is in the smelting of copper, nickel, zinc, tin etc., and ore-smelting furnace is all used in aspects such as the insulation of molten slag and dilution.
2, made full use of the advantage of induction heating and vacuum melting technology, technology is fairly simple, and " three wastes " problem is few, good work environment.
3, solved the problem that traditional fuming furnace technical finesse ore energy consumption height, temperature are difficult to satisfy the melting requirement.
Description of drawings:
Fig. 1 process flow sheet of the present invention.
Embodiment 1:
The first step: with the 50kg mineral, main component is: Sn:11.24%, Fe:30.38%, Pb:1.02%, Cu:0.272%, Bi:0.178%, SiO
2: 7.84%,, Al
2O
3: TiO 6.85%,
2: WO 2.97%,
3: 0.283%, the same quartz sand in dry back, reductive agent are by following quality proportioning, mineral 100: quartz sand 4.5: lime 3: reductive agent 8, mix, join then in the 100KVA DC-ore-heating electric furnace, be heated to 1350～1500 ℃, the tin in the material, iron enter the alloy liquid layer under the reductive agent effect, and tin recovery rate is 89.05%.
Second step: alloy liquid is put into the volatilization that vacuum induction furnace carries out tin, keep furnace at 1500 ℃～1800 ℃, vacuum tightness 9Pa, allow fully volatilization such as tin copper-lead bismuth, realization separates with iron, obtain enrichment simultaneously, tin evaporation rate 97.89% obtains the pig iron (S＜0.018%, P＜0.04%).
Embodiment 2:
The first step: with the 50kg mineral, main component is: Sn:6.24%, Fe:32.16%, Pb:1.28%, Cu:0.375%, Bi:0.207%, SiO
2: 7.97%,, Al
2O
3: TiO 6.09%,
2: WO 7.34%,
3: 0.228%, dry back is by following quality proportioning, mineral 100: lime 7.5: reductive agent 9, mix, join then and add in the 100KVA DC-ore-heating electric furnace, be heated to 1450～1550 ℃, the tin in the material, iron enter the alloy liquid layer under the reductive agent effect, and tin recovery rate is 86.55%.
Second step: alloy liquid is put into the volatilization that vacuum induction furnace carries out tin, keep furnace at 1550 ℃～1800 ℃, vacuum tightness 9Pa, allow fully volatilization such as tin copper-lead bismuth, realization separates with iron, obtain enrichment simultaneously, tin evaporation rate 96.57% obtains the pig iron (S＜0.025%, P＜0.045%).
Embodiment 3:
The first step: with the 30kg mineral, main component is: Sn:2.24%, Fe:40.17%, Pb:2.36%, Cu:0.871%, Bi:0.268%, SiO
2: 8.53%,, Al
2O
3: TiO 3.65%,
2: 11.64%, dry back is by following mass ratio, mineral 100: quartz sand 7.5: lime 6: reductive agent 10, join after mixing in the 50KVA DC-ore-heating electric furnace, be heated to 1450～1600 ℃, tin in the material, iron enter the alloy liquid layer under the reductive agent effect, tin recovery rate is 78.17%.
Second step: alloy liquid is put into the volatilization that vacuum induction furnace carries out tin, keep furnace at 1600 ℃～1800 ℃, vacuum tightness 9Pa, allow fully volatilization such as tin copper-lead bismuth, realization separates with iron, obtain enrichment simultaneously, tin evaporation rate 95.26% obtains the pig iron (S＜0.022%, P＜0.049%).
Claims (4)
1. the treatment process of a high-iron and low-tin material, its feature comprises following processing step:
The first step after the high-iron and low-tin material drying, is looked concrete the content of material, adds the batching mixing by proportioning, adds in the ore-smelting furnace, heats 2 hours～6 hours, 1350 ℃～1600 ℃ retailoring, makes tin, iron in the material enter the alloy liquid layer;
Second step, alloy liquid is put into the volatilization that vacuum induction furnace carries out tin, keep furnace temperature at 1600 ℃～1900 ℃, vacuum tightness≤10Pa separates tin iron, obtains the thick tin and the high-grade pig iron;
In the 3rd step, thick tin obtains refined tin through after the refining.
2. the treatment process of high-iron and low-tin material according to claim 1, it is characterized in that: high-iron and low-tin material is ore deposit or the assorted material of stanniferous 1.5wt%～15wt%, iron content 30wt%～45wt%, the reductive agent of selecting for use be coal, coke or carbon black solid one or more, and the reductive agent consumption is 5%～10% of a weight of material.
3. the treatment process of high-iron and low-tin material according to claim 1, it is characterized in that: the quality proportioning of ore-smelting furnace retailoring in the step 1 is, mineral 100: quartz sand 1～7: lime 1～10: reductive agent 5～10, and quartz sand and lime are looked concrete material content and are selected whole or wherein a kind of.
4. according to the treatment process of claim 2 or 3 described high-iron and low-tin materials, it is characterized in that: the alloy liquid after handling for ore-smelting furnace, according to material component and the finished product requirement, take off in advance and live together reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010039161A CN101768650A (en) | 2010-01-13 | 2010-01-13 | Method for processing high-iron and low-tin material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010039161A CN101768650A (en) | 2010-01-13 | 2010-01-13 | Method for processing high-iron and low-tin material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101768650A true CN101768650A (en) | 2010-07-07 |
Family
ID=42501750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010039161A Pending CN101768650A (en) | 2010-01-13 | 2010-01-13 | Method for processing high-iron and low-tin material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101768650A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363840A (en) * | 2011-10-14 | 2012-02-29 | 昆明理工大学 | Method for recovering iron and enriched copper-indium slag from electric furnace zinc metallurgical bottom slag |
| CN102409163A (en) * | 2011-12-02 | 2012-04-11 | 戴元宁 | Double-reduction-separation comprehensive treatment method of high-iron poor-tin ore |
| CN103255297A (en) * | 2013-05-22 | 2013-08-21 | 中南大学 | Treatment method of tin anode slurry |
| CN103695640A (en) * | 2013-12-16 | 2014-04-02 | 裴寿益 | Method for processing high-iron low-tin ore |
-
2010
- 2010-01-13 CN CN201010039161A patent/CN101768650A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363840A (en) * | 2011-10-14 | 2012-02-29 | 昆明理工大学 | Method for recovering iron and enriched copper-indium slag from electric furnace zinc metallurgical bottom slag |
| CN102409163A (en) * | 2011-12-02 | 2012-04-11 | 戴元宁 | Double-reduction-separation comprehensive treatment method of high-iron poor-tin ore |
| CN102409163B (en) * | 2011-12-02 | 2013-05-22 | 戴元宁 | Double-reduction-separation comprehensive treatment method of high-iron poor-tin ore |
| CN103255297A (en) * | 2013-05-22 | 2013-08-21 | 中南大学 | Treatment method of tin anode slurry |
| CN103695640A (en) * | 2013-12-16 | 2014-04-02 | 裴寿益 | Method for processing high-iron low-tin ore |
| CN103695640B (en) * | 2013-12-16 | 2015-09-23 | 裴寿益 | A kind of method processing high-iron and low-tin ore deposit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102352423B (en) | Method for selecting and smelting titanium from vanadium titanomagnetite at low temperature | |
| Doronin et al. | Commercial methods of recycling dust from steelmaking | |
| CN105648228B (en) | For handling the rotary hearth furnace containing lead and zinc smelting dreg | |
| CN105907984B (en) | The method for comprehensively utilizing vanadium slag | |
| CN101935766A (en) | Method and device for smelting jamesonite by bottom-blowing pool | |
| CN108456789B (en) | Extraction method of antimony metal | |
| Li et al. | Research and industrial application of a process for direct reduction of molten high-lead smelting slag | |
| CN106756027A (en) | A kind of method that Sb-Au ore and auriferous pyrite slag cooperate with melting concentration of valuable metals | |
| CN101768650A (en) | Method for processing high-iron and low-tin material | |
| CN107385237A (en) | The method of smelting of antimony concentrate | |
| CN104342560A (en) | Process for one-step reduction of metallurgical composite slag to obtain molten iron and matte phase | |
| CN106191503B (en) | A kind of method of bi content in reduction brass | |
| CN106319232A (en) | Method and system for processing zinc volatilization kiln slag | |
| CN107312935A (en) | A kind of processing method of reducing slag after lead anode slurry melting | |
| CN105803231B (en) | A kind of preparation method of rudimentary niobium ferro-titanium | |
| CN105618777A (en) | Method for preparing metal lead powder through vacuum carbothermal reduction | |
| CN106319209B (en) | A kind of rotary hearth furnace processing lead cadmia iron-extracting process | |
| CN210438803U (en) | Zinc crude recovery system for zinc-containing dust mud electric furnace method in steel plant | |
| CN108149007A (en) | The system and method for handling copper ashes | |
| CN106011496A (en) | Double-area molten pool smelting furnace and lead and tin co-smelting smelting method thereof | |
| CN101818261B (en) | Method for removing tin from lead bullion by adopting ferrous powder | |
| CN109321702A (en) | The production method of chromium-containing molten iron | |
| CN1039594C (en) | Method for smelting lead by reverberatory furnace composite method | |
| CN101792858B (en) | Method for processing tin-iron-titanium material by using DC electric furnace | |
| CN113862414B (en) | Blast furnace molten iron decarburization method based on electric furnace dust removal ash |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100707 |