NO911011L - PROCEDURE FOR THE TREATMENT OF SULFUR, IRON AND ZINCINOUS METAL SURGICAL BY-PRODUCTS AND / OR WASTE PRODUCTS. - Google Patents
PROCEDURE FOR THE TREATMENT OF SULFUR, IRON AND ZINCINOUS METAL SURGICAL BY-PRODUCTS AND / OR WASTE PRODUCTS.Info
- Publication number
- NO911011L NO911011L NO91911011A NO911011A NO911011L NO 911011 L NO911011 L NO 911011L NO 91911011 A NO91911011 A NO 91911011A NO 911011 A NO911011 A NO 911011A NO 911011 L NO911011 L NO 911011L
- Authority
- NO
- Norway
- Prior art keywords
- zinc
- products
- metallic
- iron
- melting furnace
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 8
- 239000006227 byproduct Substances 0.000 title abstract 4
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- 239000002699 waste material Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 239000000047 product Substances 0.000 title abstract 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 229910052717 sulfur Inorganic materials 0.000 title abstract 2
- 239000011593 sulfur Substances 0.000 title abstract 2
- 239000011701 zinc Substances 0.000 abstract 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 7
- 229910052725 zinc Inorganic materials 0.000 abstract 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 5
- 238000002844 melting Methods 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 3
- 239000011787 zinc oxide Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000005083 Zinc sulfide Substances 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000012265 solid product Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Søknaden vedrører en fremgangsmåte for å behandle svovel-, sink- og jernholdige metallurgiske biprodukter og/eller avfallsprodukter, spesielt utlutningsresiduer som oppstar ved hydrometallurgisk fremstilling av sink, og fremgangsmåten omfatter følgende trinn: a) biproduktene og/eller avfallsmaterialene underkastes oksiderende røsting ved en temperatur mellom 850 og 1150°C id-t biproduktene og/eller avfallsproduktene før rstingen blandes med en tilstrekkelig mengde sinksulfidkonsentrat til at rstingen kan foregå autogent, at det fra røstetrinnet uttas en S0-inneholdende avgass som opparbeides til svovelsyre eller andre svovelprodukter, samt et oksidisk fast produkt inneholdende jem-, sink- og andre metallverdier i utgangsmaterialene, b) en del av det røstede oksidiske materialet fra trinn a) tilsettes et karbonholdig reduksjonsmiddel og underkastes direkte reduksjon ved slike betingelser at sinkoksid og jernoksid reduseres til metallisk form, hvorved den metalliske sink vil fordampe mens det metalliske jem vil forbli i fast form, c) det metalliserte materialet fra trinn b) blandes med resten av det røstede oksidiske materialet fra trinn a) i en mengde tilstrekkelig til at det metalliske jem i materialet fra trinn b) vil redusere ZnO i materialet fra trinn a) til metallisk sink, d) blandingen fra trinn c) chargeres til en gasstett lukket elektrotermisk smelteovn, hvor blandingen smeltes ved en temperatur mellom 1200 og 2000°C hvorved ZnO reduseres til Zn som fordampes, og hvorved det dannes en FeO-basert slagg, e) fjerning av en sinkrik gassfase fra smelteovnen og kondensasjon av sink i en kondensator, f) tapping av en inert FeO basert slagg fra smelteovnen.The application relates to a process for treating sulfur, zinc and ferrous metallurgical by-products and / or waste products, in particular leaching residues arising from the hydrometallurgical production of zinc, and the process comprises the following steps: a) the by-products and / or waste materials are subjected to oxidative roasting at a temperature between 850 and 1150 ° C in the by-products and / or waste products before the roasting is mixed with a sufficient amount of zinc sulphide concentrate for the roasting to take place autogenously, so that an SO solid product containing iron, zinc and other metal values in the starting materials, b) a part of the roasted oxidic material from step a) is added to a carbonaceous reducing agent and subjected to direct reduction under such conditions that zinc oxide and iron oxide are reduced to metallic form, whereby the metallic zinc will evaporate but s the metallic iron will remain in solid form, c) the metallized material from step b) is mixed with the remainder of the roasted oxidic material from step a) in an amount sufficient that the metallic iron in the material from step b) will reduce ZnO in the material from step a) to metallic zinc, d) the mixture from step c) is charged to a gas-tight closed electrothermal melting furnace, where the mixture is melted at a temperature between 1200 and 2000 ° C whereby ZnO is reduced to Zn which evaporates and whereby an FeO -based slag, e) removal of a zinc-rich gas phase from the melting furnace and condensation of zinc in a condenser, f) tapping of an inert FeO based slag from the melting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO91911011A NO911011L (en) | 1991-03-14 | 1991-03-14 | PROCEDURE FOR THE TREATMENT OF SULFUR, IRON AND ZINCINOUS METAL SURGICAL BY-PRODUCTS AND / OR WASTE PRODUCTS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO91911011A NO911011L (en) | 1991-03-14 | 1991-03-14 | PROCEDURE FOR THE TREATMENT OF SULFUR, IRON AND ZINCINOUS METAL SURGICAL BY-PRODUCTS AND / OR WASTE PRODUCTS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO911011D0 NO911011D0 (en) | 1991-03-14 |
| NO911011L true NO911011L (en) | 1992-09-15 |
Family
ID=19893958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO91911011A NO911011L (en) | 1991-03-14 | 1991-03-14 | PROCEDURE FOR THE TREATMENT OF SULFUR, IRON AND ZINCINOUS METAL SURGICAL BY-PRODUCTS AND / OR WASTE PRODUCTS. |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO911011L (en) |
-
1991
- 1991-03-14 NO NO91911011A patent/NO911011L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO911011D0 (en) | 1991-03-14 |
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