DE162762C - - Google Patents
Info
- Publication number
- DE162762C DE162762C DENDAT162762D DE162762DA DE162762C DE 162762 C DE162762 C DE 162762C DE NDAT162762 D DENDAT162762 D DE NDAT162762D DE 162762D A DE162762D A DE 162762DA DE 162762 C DE162762 C DE 162762C
- Authority
- DE
- Germany
- Prior art keywords
- zinc
- ores
- oxide
- sulfur
- evaporation
- 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.)
- Active
Links
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 239000011701 zinc Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 238000001704 evaporation Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000015450 Tilia cordata Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- 229940100888 zinc compounds Drugs 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N Calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 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 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N iron-sulfur Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- -1 with oxides Chemical class 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 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
-
- 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
- C22B19/04—Obtaining zinc by distilling
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/04—Heavy metals
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)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Das bisher allgemein angewandte Verfahren, um Zink aus seinen Erzen zu gewinnen, besteht bekanntlich darin, daß die Zinkoxyd oder Zinkkarbonat enthaltenden Erze mit Kohle gemischt erhitzt werden. Die Mangelhaftigkeit dieses Verfahrens, das umständlich und mit großen Verlusten verknüpft ist, außerdem die Verarbeitung armer und gemischter Erze nicht gestattet, hat zu Versuchen geführt,The process generally used to date to extract zinc from its ores consists It is known that the ores containing zinc oxide or zinc carbonate are mixed with coal mixed heated. The inadequacy of this procedure, which is cumbersome and is associated with large losses, as well as the processing of poor and mixed ores not permitted, has led to attempts
ίο diesen Reduktionsvorgang im elektrischen Ofen durchzuführen. Diese Versuche haben bisher zu keinem technisch brauchbaren Verfahren' geführt, weil die entstehenden Zinkdämpfe durch die bei der Reduktion entstehenden Gase so fein verteilt werden, daß ein Zusammenschmelzen des Zinkstaubes nur mit sehr großen Verlusten erzielt werden kann. Arme und gemischte Zinkerze sind auch dem Reduktionsverfahren im elektrischen Ofen nicht zugänglich.ίο this reduction process in the electrical Oven carry out. So far, these attempts have not led to any technically useful process' out because the zinc vapors produced by the reduction Gases are so finely distributed that a melting together of the zinc dust only with very large losses can be achieved. Poor and mixed zinc ores are also subject to the reduction process not accessible in the electric oven.
Der Erfinder hat Versuche darüber angestellt, wie weit es möglich ist, durch Erhitzen von Zinkerzen und zinkhaltigen Hüttenerzeugnissen im elektrischen Ofen ohne Zusatz von reduzierenden Substanzen das Zink in Form von Zinkoxyd zu gewinnen. Solche Versuche wurden angestellt mit gerösteten Sulfiden, mit Oxyden, Karbonaten, Kieselzinkerzen und anderen Zinkverbindungen. Die Verdampfungstemperatur des Zinkoxyds (bezw. die Zersetzungstemperatur der anderen Zinkverbindungen) liegt bekanntlich nicht so hoch, als daß sie nicht im Kohlenfeuerungs- oder Generatorgasofen erreicht werden könnte. Versuche nach dieser Richtung mit zinkischen Kiesabbränden haben aber zu einem wenig befriedigenden Ergebnis geführt. Das Schmelzen der Beschickung mußte unter allen Umständen vermieden werden, hauptsächlich deshalb, weil aus dem schmelzflüssigen Material die Verdampfung nicht zu erzielen war.The inventor has made experiments as to how far it is possible by heating of zinc ores and zinc-containing metallurgical products in an electric furnace without additives to obtain zinc in the form of zinc oxide from reducing substances. Such attempts were employed with roasted sulphides, with oxides, carbonates, and fumed silica candles and other zinc compounds. The evaporation temperature of the zinc oxide (resp. the decomposition temperature of the other zinc compounds is known to be not so high, than that it could not be reached in the coal-fired or generator gas furnace. try in this direction with zinc gravel burns, however, have become less than satisfactory Result led. Melting of the charge had to be avoided at all costs, mainly because evaporation could not be achieved from the molten material.
Es zeigte sich bei den Verdampfungsversuchen im elektrischen Ofen, daß die Verdampfung bezw. Zersetzung und Verdampfung überraschend leicht gelingt, und zwar auch dann, wenn die Beschickung leicht schmilzt, wie das z. B. bei Kiesabbränden der Fall ist.It was found in the evaporation tests in the electric furnace that the evaporation respectively Decomposition and evaporation succeed surprisingly easily, even if the charge melts easily, like that z. B. is the case with gravel burns.
Es handelt sich hier offenbar nicht nur um eine thermische Wirkung, da bei schmelzflüssig' Obviously, this is not just a matter of a thermal effect, since in the case of molten '
gewordenem Material die Wirkungbecome material the effect
dann am deutlichsten wird, wenn der Strom so geleitet wird, daß er von den Anoden in Form eines Lichtbogens in die Schmelze springt und aus dieser wieder als Lichtbogen zur Kathode. Sorgt man für eine gute Abführung 'des in Strömen entweichenden Zinkoxyddampfes, so ist das Ausbringen ein sehr vollständiges.' Die Weiterverarbeitung des Zinkoxydes kann auf hüttenmännischem Wege oder nach Auflösung durch Elektrolyse geschellen. is most evident when the current is conducted so that it flows from the anodes in Form of an arc jumps into the melt and out of this again as an arc to the cathode. Provided that the zinc oxide vapor escaping in streams is well discharged, so the deployment is a very complete one. ' The further processing of the Zinc oxide can ring in a metallurgical way or after dissolution by electrolysis.
In der deutschen Patentschrift 132205 ist für rohe sulfidische Erze ein Verfahren beschrieben, das darin besteht, daß die Erze mit Zuschlägen, wie Kalk oder Eisenoxyd, versehen, im elektrischen Ofen erhitzt werden. Dabei soll der Schwefel des Zinksulfides an den Kalk bezw. das Eisen so gebunden werden,In the German patent 132205 a process is described for crude sulfidic ores, that consists in adding additives such as lime or iron oxide to the ores, be heated in an electric oven. The sulfur of the zinc sulfide should be added the lime respectively. the iron be so bound
daß eine schmelzflüssige Schlacke von Schwefelcalcium bezw. Schwefeleisen entsteht, während das Zink als solches oder als Oxyd entweicht. Enthalten die sulfidischen Erze solche Substanzen an sich in genügender Menge, um den Schwefel aufzunehmen und zu binden, so können die Zuschläge entbehrt werden.that a molten slag of calcium sulfur BEZW. Sulfur iron is produced while the zinc escapes as such or as an oxide. Contain sulphidic ores Such substances in themselves in sufficient quantity to absorb and bind the sulfur, so the additives can be dispensed with will.
Obgleich dieses Verfahren mit dem des Erfinders keineswegs identisch ist, da ein Binden des Schwefels an Kalk oder Eisen gar nicht der Zweck der vorliegenden Erfindung ist, schließt der Erfinder dennoch solche sulfidische Erze von seinem Verfahren aus, die an sich solche Substanzen in genügender Menge enthalten, die im elektrischen Ofen den Schwefel des Zinksulfids aufzunehmen und in der Schlacke zurückzuhalten vermögen.Although this method is by no means identical to that of the inventor, as a binding of sulfur on lime or iron is not the purpose of the present invention at all, However, the inventor excludes such sulfidic ores from his process that per se contain such substances in sufficient quantity that sulfur in the electric furnace absorb the zinc sulfide and retain it in the slag.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE162762C true DE162762C (en) |
Family
ID=428523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT162762D Active DE162762C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE162762C (en) |
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- DE DENDAT162762D patent/DE162762C/de active Active
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