DE203149C - - Google Patents
Info
- Publication number
- DE203149C DE203149C DENDAT203149D DE203149DA DE203149C DE 203149 C DE203149 C DE 203149C DE NDAT203149 D DENDAT203149 D DE NDAT203149D DE 203149D A DE203149D A DE 203149DA DE 203149 C DE203149 C DE 203149C
- Authority
- DE
- Germany
- Prior art keywords
- sulfuric acid
- iron
- zinc
- ores
- concentrated sulfuric
- 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.)
- Expired
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910000460 iron oxide Inorganic materials 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L Iron(II) sulfate Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- LILHXQCLSOZSRO-UHFFFAOYSA-J dizinc;oxozinc;dicarbonate;tetrahydrate Chemical compound O.O.O.O.[Zn+2].[Zn+2].[Zn]=O.[Zn]=O.[Zn]=O.[O-]C([O-])=O.[O-]C([O-])=O LILHXQCLSOZSRO-UHFFFAOYSA-J 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims description 4
- 235000004416 zinc carbonate Nutrition 0.000 claims description 4
- 239000011667 zinc carbonate Substances 0.000 claims description 4
- 229910000010 zinc carbonate Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 230000001180 sulfating Effects 0.000 claims 1
- -1 zinc- and iron Chemical compound 0.000 claims 1
- 229940091251 Zinc Supplements Drugs 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000005569 Iron sulphate Substances 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical group [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 241001606065 Aoa Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 235000009529 zinc sulphate Nutrition 0.000 description 1
- 239000011686 zinc sulphate 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE AOa. GRUPPECLASS AOa. GROUP
Die Erfindung betrifft die Verarbeitung von armen Zinkcarbonaterzen und Abfällen und Rückständen von der Aufbereitung solcher Erze.The invention relates to the processing of poor zinc carbonate ores and wastes and Residues from the processing of such ores.
Eine vorteilhafte Ausnutzung von solchem Gut, welches z. B. in Oberschlesien und anderen Zinkerzdistrikten in großen Mengen vorhanden ist, konnte bekanntlich mit den bisher versuchten Verfahrensweisen nicht erzieltAn advantageous use of such a good which z. B. in Upper Silesia and others Zinc ore districts present in large quantities could, as is well known, with the hitherto attempted procedures not achieved
ίο werden. Der Erfindung gemäß sollen die genannten Stoffe mit einer dem Gesamtgehalt an sulfatisierbaren Metallen entsprechenden Menge konzentrierter Schwefelsäure im Flammofen erhitzt und die Temperatur so erhöht werden, daß das gebildete Eisensulfat zu Eisenoxyd zersetzt wird. Nach dem Erkalten des Röstgutes wird dann mit verdünnter. Schwefelsäure ausgelaugt.ίο be. According to the invention, the said Substances with an amount of concentrated sulfuric acid in the furnace that corresponds to the total content of metals that can be sulfated heated and the temperature increased so that the iron sulfate formed is decomposed to iron oxide. After cooling down the roast is then diluted with. Sulfuric acid leached.
Zink- und eisenhaltige Stoffe, insbesondere Kiesabbrände, mit konzentrierter Schwefelsäure unter Luftzutritt zu erhitzen, ist zwar bereits vorgeschlagen. Der Gehalt an Schwefelsäure entsprach aber nur dem Zinkgehalte des Gutes, man wollte Zinksulfat bilden, das durch Auslaugen von unberührt gebliebenem Eisenoxyd getrennt wird. Andererseits wurde vorgeschlagen, Zinkerze zum Sulfatisieren mit Bisulfat unter Luftabschluß zu verschmelzen und dabei die Erhitzung so hoch zu treiben, daß das gebildete Eisensulfat zu Eisenoxyd zersetzt wird, und von diesem das unzersetzt gebliebene Zinksulfat durch Auslaugen zu trennen.Zinc and iron containing substances, especially gravel burns, with concentrated sulfuric acid To heat with access to air has already been proposed. The content of sulfuric acid but only corresponded to the zinc content of the property, they wanted to form zinc sulphate, which was left untouched by leaching Iron oxide is separated. On the other hand, it has been suggested to use zinc ores for sulphation To melt bisulfate in the absence of air and to drive the heating so high, that the iron sulphate formed is decomposed to iron oxide, and from this it is undecomposed Separate remaining zinc sulfate by leaching.
Praktische Versuche haben dargetan, daß sich auf , Grundlage dieser beiden bekannten Verfahren eine befriedigende Verwertung der armen Zinkcarbonaterze und ihnen entsprechenden Abfällen oder Rückständen von Zinkcarbonaterzen erzielen läßt, wenn man in der folgenden Weise verfährt:Practical experiments have shown that based on these two known ones Process a satisfactory recovery of the poor zinc carbonate ores and their corresponding Waste or residues of zinc carbonate ores can be obtained by doing the following:
Das Gut, welches erforderlichenfalls gepulvert wird, mischt man mit Schwefelsäure von 50 bis 60 ° Be. in einer seinem Gesamtmetallgehalt entsprechenden Menge. Man erhitzt das Gemisch im Flammofen unter Luftzutritt bis auf 600 ° C. Hierdurch wird der Eisengehalt über Eisensulfat in Eisenoxyd, der Zinkgehalt und, wenn Kadmiumgehalt vorhanden ist, auch dieser in basisches Sulfat umgewandelt. Die schwefelhaltigen Röstgase können in bekannter Weise auf Schwefelsäure verarbeitet werden. Das abgekühlte Röstprodukt wird mit verdünnter Schwefelsäure ausgelaugt. Hierbei gehen die basischen Sulfate des Zinks und gegebenenfalls Kadmiums unter Umbildung zu gewöhnlichen Sulfaten in Lösung, während das Eisenoxyd als Rückstand hinterbleibt. Dieser wird fein vermählen und nach dem Trocknen als Eisenrot verwertet. Die erhaltene Sulfatlauge wird in bekannter Weise weiter verarbeitet.The material, which is powdered if necessary, is mixed with sulfuric acid 50 to 60 ° Be. in an amount corresponding to its total metal content. One heats up the mixture in the furnace with air admission up to 600 ° C. This increases the iron content via iron sulphate in iron oxide, the zinc content and, if there is cadmium content, this also in basic sulphate converted. The sulfur-containing roasting gases can be converted to sulfuric acid in a known manner are processed. The cooled roasted product is mixed with dilute sulfuric acid drained. The basic sulfates of zinc and possibly cadmium go here with conversion to common sulphates in solution, while the iron oxide as a residue remains behind. This is finely ground and after drying as iron red recovered. The sulphate liquor obtained is further processed in a known manner.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE203149C true DE203149C (en) | 1900-01-01 |
Family
ID=465584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT203149D Expired DE203149C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE203149C (en) |
-
0
- DE DENDAT203149D patent/DE203149C/de not_active Expired
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