CN100392121C - Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation - Google Patents
Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation Download PDFInfo
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- CN100392121C CN100392121C CNB2006100108558A CN200610010855A CN100392121C CN 100392121 C CN100392121 C CN 100392121C CN B2006100108558 A CNB2006100108558 A CN B2006100108558A CN 200610010855 A CN200610010855 A CN 200610010855A CN 100392121 C CN100392121 C CN 100392121C
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- zinc
- tin
- vacuum
- vacuum oven
- temperature
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- 239000011701 zinc Substances 0.000 title claims abstract description 72
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 65
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005292 vacuum distillation Methods 0.000 title abstract 3
- 229910045601 alloy Inorganic materials 0.000 title description 3
- 239000000956 alloy Substances 0.000 title description 3
- 229910001128 Sn alloy Inorganic materials 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 15
- GZCWPZJOEIAXRU-UHFFFAOYSA-N tin zinc Chemical compound [Zn].[Sn] GZCWPZJOEIAXRU-UHFFFAOYSA-N 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 37
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 238000004821 distillation Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 13
- 239000004615 ingredient Substances 0.000 description 12
- 239000002699 waste material Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052732 germanium Inorganic materials 0.000 description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910000925 Cd alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- ZWTGPOOQQOEXRH-UHFFFAOYSA-N [Ag].[Ge].[In] Chemical compound [Ag].[Ge].[In] ZWTGPOOQQOEXRH-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a vacuum distillation recovery method for zinc and tin from zinc and tin alloy. The zinc and tin alloy is used as raw material of proportion by weight of 50% to 95%, and crude zinc and crude tin are obtained after vacuum distillation. In the control technological condition, the distillation temperature is from 800 DEG C to 1100 DEG C, the vacuum degree is from 10 Pa to 50 Pa, the treating time is from 12 hours to 15 hours, and the tin content in the obtained crude zinc meets the requirement of 0<#> zinc. Under the condition without using any chemical reagents, the present invention is used for separating zinc and tin alloy and recovering the zinc and the tin, and has the advantages of no environmental pollution, low labor intensity, low production cost and high metal recovery rate.
Description
One. technical field:
Vacuum fire metallurgy.
Two. background technology:
The consumption of zinc is only second to copper, aluminium, occupies the third-largest position in ten big non-ferrous metals.The maximum purposes of metallic zinc is zinc-plated, secondly is to be used to make the brass of the various trades mark and to make various zinc base alloys etc.Metallic zinc is widely used in industries such as space flight, automobile, boats and ships, iron and steel, machinery, building, electronics and dairy industry.In the zinc use, along with scrapping of product just produced a large amount of zinc waste materials that contain.Reduce gradually and under the ever-increasing situation of demand at zinc resource, the regeneration techniques that contains the zinc waste material for reasonable recovery waste material, economize on resources and to reduce environmental pollution significant, therefore such manipulation of regeneration that contains the zinc waste material is just merited attention.The Zinc-tin alloy industrial waste is exactly a kind of zinciferous raw material, is one of raw material of regenerated zinc, generally uses blast furnace or atmospheric distillation tower to handle to this type of alloy.This method is carried out at normal temperatures, and alloyed scrap is subjected to atmospheric oxidation easily in fusion process, will influence the quality of product like this, reduce product recovery rate, and environmental pollution is serious.Therefore for improving product quality, need to improve treatment process.
China patent CN89108164.X discloses the isolating method of a kind of Zn-Cd alloy, the Zn-Cd alloy of molten state is added in the vacuum oven, and vacuum degree control is in 10～30 holders (1 holder=133.3Pa), adopt the method for multistage distillation, make zinc and cadmium evaporate respectively, collect, separate purifying zinc and cadmium.In the patent No. is in the patent of invention of CN200410022595.7, a kind of method of zinc indium alloy vacuum distilling dezincify is disclosed, it is a method of utilizing vacuum distilling, 700～1000 ℃ of the vacuum tightness 5～10Pa of control vacuum oven and temperature, zinc impurities is evaporated, residue is the indium after the purification, reaches the purpose of the smart indium of thick indium purification preparation; China patent CN98107600.9 discloses the method that a kind of vacuum distillating hard-zinc is carried zinc and enriched germanium indium silver, adopt vacuum distilling, 900～960 ℃ of zinc temperature are steamed in control, vacuum tightness 1～2mmHg (1mmHg=133.3Pa), and condensing temperature is greater than 460 ℃, tap to tap time was less than 16 hours, the evaporation result obtains zinc ingot metal, lead bullion and germanium slag, and lead bullion reenters vacuum oven, separate to obtain lead bullion and germanium slag, the germanium slag that obtains for twice is sent back to and is received germanium indium silver.
The present invention does not add any reagent, adopts vacuum smelting furnace vacuum distilling to handle Zinc-tin alloy, makes the zinc volatilization and tin is non-volatile by vacuum distilling, obtains metal liquid zinc in condenser, obtains metal liquid tin putting the tin end simultaneously.Different with the foregoing disclose patent, the vacuum tightness height, temperature range is big, the industrialization operation of being more convenient for.The present invention can obtain two kinds of metal products simultaneously, can reclaim zinc and tin effectively.
Three. summary of the invention:
1, the purpose of this invention is to provide a kind of method that from Zinc-tin alloy, reclaims zinc and tin, adopt vacuum smelting furnace vacuum distilling to handle Zinc-tin alloy, control furnace pressure and temperature, make zinc volatilization and tin is non-volatile, in condenser, obtain metal liquid zinc, simultaneously obtain metal liquid tin putting the tin end.
2, Fa Ming technical scheme:
1) operational path of the present invention:
The technological line that the present invention adopts: Zinc-tin alloy (solid) → go into vacuum oven → bleed → heat up → distill → cool off → metallic zinc, tin (liquid).
It is different with the composition of residual liquid phase to realize that the isolating ultimate principle of Zinc-tin alloy is the gas phase that distills.By the isolating β criterion of vacuum distilling as can be known
Through calculating as can be known β
Zn1.During vacuum distilling, zinc content in gas phase is higher than the content in the liquid phase like this, zinc volatilization back enrichment in gas phase, and the non-volatile enrichment in liquid phase of tin, thus zinc is separated with tin.Because whole process is in vacuum systems, does not have oxidizing atmosphere, therefore nonvolatile tin and evaporable zinc are simple substance, can obtain metallic zinc and tin after condensation.
2) the present invention is achieved through the following technical solutions.To contain zinc and contain 50%～95% for the quality percentage, surplus is that the Zinc-tin alloy raw material of tin adds in the burner hearth of vacuum oven, bleed after the sealed vacuum stove and make the pressure in the vacuum oven reach 10～50Pa, through heating up, make the temperature of vacuum oven reach 800～1100 ℃, keep temperature-resistant then, make the zinc volatilization, the time of vacuum distilling is 12～15 hours, the cooling cooling makes the temperature of vacuum oven reduce to 500 ± 30 ℃, charge into rare gas element in vacuum oven, open crude zinc and thick tin that vacuum oven obtains liquid, the tin content in the zinc reaches the requirement of 0# zinc.
The present invention compares the advantage that has with known technology: be raw material with the Zinc-tin alloy, under the situation of not using any chemical reagent, obtain crude zinc and thick tin simultaneously through vacuum distilling, the tin content in the zinc reaches the requirement of 0# zinc; Raw material can use the Zinc-tin alloy waste material, and cost is low; Have that technology is reasonable, flow process is simple, the characteristics of non-environmental-pollution.
Four. embodiment:
Embodiment 1:
Get 1000Kg Zinc-tin alloy waste material, the chemical ingredients of raw material is: 55 ± 5%Zn, 45 ± 5%Sn (the chemical ingredients consistence of waste material is poor), the burner hearth that adds vacuum oven, bleed after the sealed vacuum stove, make the pressure of vacuum oven reach 20 ± 5Pa, vacuum oven makes the temperature of vacuum oven reach 850 ± 20 ℃ through 3～4 hours intensification, keeps temperature-resistant then, make the zinc volatilization in the raw material, the volatilization time is 10 hours, and the temperature that the cooling of lowering the temperature then makes vacuum oven charges into nitrogen less than 500 ± 30 ℃ in vacuum oven, open vacuum oven, obtain the thick tin of 530Kg crude zinc and 465Kg.The chemical ingredients of zinc is: 98.88%Zn, 0.012%Sn; The chemical ingredients of tin is: 87.7%Sn 10.53%Zn.
Embodiment 2:
Get 1500Kg Zinc-tin alloy raw material, the chemical ingredients of raw material is: 60 ± 5%Zn, 40 ± 5%Sn (the chemical ingredients consistence of waste material is poor), add vacuum oven, bleed after the sealed vacuum stove, make the pressure of vacuum oven reach 40 ± 10Pa, vacuum oven makes the temperature of vacuum oven reach 1000 ℃ through 8～12 hours intensification, keeps temperature-resistant then, make the zinc volatilization in the raw material, the volatilization time is 12 hours, and the temperature that the cooling of lowering the temperature then makes vacuum oven charges into nitrogen less than 500 ± 50 ℃ in vacuum oven, open vacuum oven, obtain the thick tin of 846Kg crude zinc and 650Kg.The chemical ingredients of zinc is: 99.8%Zn, 0.0013%Sn; The chemical ingredients of tin is: 89.0%Sn 10%Zn.
Embodiment 3:
Get 2500Kg Zinc-tin alloy raw material, the chemical ingredients of raw material is: 70% ± 5Zn, 30% ± 5Sn (the chemical ingredients consistence of waste material is poor), add vacuum oven, bleed after the sealed vacuum stove, make the pressure of vacuum oven reach 30 ± 5Pa, vacuum oven makes the temperature of vacuum oven reach 1100 ℃ through 5～6 hours intensification, keeps temperature-resistant then, make the zinc volatilization in the raw material, the volatilization time is 10 hours, and the temperature that the cooling of lowering the temperature then makes vacuum oven charges into nitrogen less than 500 ± 50 ℃ in vacuum oven, open vacuum oven, obtain the thick tin of 1747Kg crude zinc and 748Kg.The chemical ingredients of zinc is: 99.95%Zn, 0.0005%Sn; The chemical ingredients of tin is: 90.0%Sn 9.96%Zn.
Claims (1)
1. the method for zinc and tin is reclaimed in a Zinc-tin alloy vacuum distilling, it is characterized in that: it is realized according to the following steps, to contain zinc is 50～5%, surplus is that the Zinc-tin alloy raw material of tin adds vacuum oven, bleed after the sealed vacuum stove, make the pressure in the vacuum oven reach 10～50Pa, through heating up, make the temperature of vacuum oven reach 800～1100 ℃, keep temperature-resistant then, make the zinc volatilization, the time of vacuum distilling is 12～15 hours, the cooling cooling makes the temperature of vacuum oven reduce to 500 ± 30 ℃, charges into rare gas element in vacuum oven, opens crude zinc and thick tin that vacuum oven obtains liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100108558A CN100392121C (en) | 2006-04-27 | 2006-04-27 | Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100108558A CN100392121C (en) | 2006-04-27 | 2006-04-27 | Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1837383A CN1837383A (en) | 2006-09-27 |
| CN100392121C true CN100392121C (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100108558A Expired - Fee Related CN100392121C (en) | 2006-04-27 | 2006-04-27 | Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100392121C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805832A (en) * | 2010-03-25 | 2010-08-18 | 昆明理工大学 | Method for detinning tin-iron alloy through vacuum distillation |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818384B (en) * | 2015-05-06 | 2017-03-01 | 昆明鼎邦科技股份有限公司 | A kind of Zinc-tin alloy powder vacuum reduction separation of Zinc and the method for stannum |
| CN105296766B (en) * | 2015-11-06 | 2017-07-18 | 赵湘生 | A kind of separation method of Zinc-tin alloy vacuum distillation |
| CN114058878A (en) * | 2021-11-01 | 2022-02-18 | 郴州飞驰环保科技发展有限责任公司 | Method for effectively reducing tin content in copper slag in smelting process of tin-containing material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323909A (en) * | 2000-05-11 | 2001-11-28 | 中南工业大学 | Method of extracting zinc from zine slag |
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2006
- 2006-04-27 CN CNB2006100108558A patent/CN100392121C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323909A (en) * | 2000-05-11 | 2001-11-28 | 中南工业大学 | Method of extracting zinc from zine slag |
Non-Patent Citations (2)
| Title |
|---|
| 真空蒸馏在锌回收中的应用. 刘永成，戴永年.昆明理工大学，第21卷第6期. 1996 |
| 真空蒸馏在锌回收中的应用. 刘永成，戴永年.昆明理工大学，第21卷第6期. 1996 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805832A (en) * | 2010-03-25 | 2010-08-18 | 昆明理工大学 | Method for detinning tin-iron alloy through vacuum distillation |
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| Publication number | Publication date |
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| CN1837383A (en) | 2006-09-27 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080604 Termination date: 20120427 |