DE133321C - - Google Patents
Info
- Publication number
- DE133321C DE133321C DENDAT133321D DE133321DA DE133321C DE 133321 C DE133321 C DE 133321C DE NDAT133321 D DENDAT133321 D DE NDAT133321D DE 133321D A DE133321D A DE 133321DA DE 133321 C DE133321 C DE 133321C
- Authority
- DE
- Germany
- Prior art keywords
- ores
- furnace
- mixed
- zinc
- known manner
- 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
- 238000000034 method Methods 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 3
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- 235000002639 sodium chloride Nutrition 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- -1 chlorine-zinc Chemical compound 0.000 claims 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 235000005074 zinc chloride Nutrition 0.000 description 5
- 239000011592 zinc chloride Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001603 reducing Effects 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 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 Effects 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical class [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 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
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/001—Preliminary treatment with modification of the copper constituent
- C22B15/0013—Preliminary treatment with modification of the copper constituent by roasting
- C22B15/0019—Chloridizing roasting
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/08—Chloridising roasting
-
- 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
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
- C22B15/0006—Preliminary treatment without modification of the copper constituent by dry processes
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
M 133321 KLASSE 40 a. M 133321 CLASS 40 a.
GUIDO de BECHI in LONDON.GUIDO de BECHI in LONDON.
ununterbrochenen Arbeitsgange.uninterrupted work.
Patentirt im Deutschen Reiche vom 24. Juni 1900 ab.Patented in the German Empire on June 24, 1900.
Es ist bekannt, dafs gemischte sulfidische Erze verhältnifsmäfsig schwierig zu verarbeiten sind, und dafs eine Anzahl der für diesen Zweck angegebenen Verfahren darauf hinausläuft, diese Erze zunächst der chlorirenden Röstung zu unterwerfen und alsdann ihre Bestandtheile durch zweckmäfsig geleitete Lauge verfahren mehr oder weniger vollständig zu trennen. Derartige Verfahren versagen aber oder führen nur unvollkommen zum Ziel bei solchen Erzen, deren Gehalt an Zink ziemlich bedeutend ist, weil in diesem Falle das sich bildende Zinkchlorid schmilzt und noch unzersetzte Sulfide an der Oxydation verhindert, indem es dieselben umhüllt.It is known that mixed sulphidic ores are comparatively difficult to process and that a number of the procedures given for this purpose boil down to to subject these ores first to chlorinating roasting, and then their constituents to be more or less completely separated by appropriately conducted caustic process. However, such procedures fail or lead only imperfectly to the goal with those ores whose zinc content is fairly high is important because in this case the zinc chloride that is formed melts and is still undecomposed Prevents sulphides from oxidation by enveloping them.
Diese Schwierigkeiten sollen durch das vorliegende Verfahren überwunden werden, welches zwar auch von der chlorirenden Röstung Gebrauch macht, gleichzeitig aber bei so hohen Temperaturen arbeitet, dafs das Zinkchlorid in dem Mafse, in welchem es entsteht, verdampft und von dem das Röstgut durchstreichenden Gasstrom fortgeführt wird.These difficulties are intended to be overcome by the present method, which makes use of the chlorinating roast, but at the same time at such a high level Temperatures works so that the zinc chloride evaporates to the extent to which it is formed and is continued by the gas stream sweeping through the roast.
Die Flüchtigkeit des Zinkchlorids bei hoher Temperatur ist wohl bekannt, und es ist z. B. in der Patentschrift 8116 vorgeschlagen worden, diese auszunutzen, um Zink von Galmeirückständen und zinkischen Abfällen in Form seines flüchtigen Chlorides zu trennen. Aber dieses Verfahren hat nur mit oxydischen Erzen oder Rückständen zu thun im Gegensatz zu vorliegender Erfindung, welche sich ausschliefslich auf gemischte, sulfidische Erze bezieht.The volatility of zinc chloride at high temperature is well known and it is e.g. B. has been proposed in patent specification 8116, exploit these to form zinc from calamine residues and zinc waste to separate its volatile chloride. But this process only works with oxide ores or residues to do contrary to the present invention, which is exclusively refers to mixed, sulphidic ores.
Die Schwierigkeiten bei der chlorirenden Röstung dieser Erze lassen sich nur durch Anwendung des unten beschriebenen Verfahrens überwinden. The difficulties in the chlorinating roasting of these ores can only be solved by application the procedure described below.
Zur Durchführung des Verfahrens wird ein Schachtofen, nicht etwa ein Retortenofen, verwendet, welchem Luft in verschiedenen Höhen nach Belieben zugeführt wird.A shaft furnace, not a retort furnace, is used to carry out the process. which air is supplied at different heights at will.
Das Erz wird zur Erzielung gröfster Gleichmäfsigkeit zunächst gepulvert oder gemahlen und mit der nöthigen Menge von Kochsalz oder anderen Alkali- oder Erdkalichloriden vermengt und alsdann zu Steinen von passender Gröfse geprefst. Mit diesen Steinen wird der. Schachtofen beschickt; der zur Erzielung der nöthigen Hitze erforderliche Brennstoff wird dem Ofen entweder in halber Höhe in fester Form oder von unten gasförmig" zugeführt. Die Luftzufuhr wird in solcher Weise geregelt, dafs im unteren Theile des Ofens reducirende, im oberen Theile aber oxydirende Verbrennung stattfindet. Die Vorgänge, welche sich unter solchen Umständen in einem derartig geleiteten Schachtofen abspielen, sind folgende:The ore is first powdered or ground to achieve the greatest possible uniformity and mixed with the necessary amount of table salt or other alkali or earth potassium chlorides and then pressed into stones of the appropriate size. With these stones the. Shaft furnace loaded; the fuel required to obtain the necessary heat the furnace either halfway up in solid form or in gaseous form from below. The air supply is regulated in such a way that reducing, but oxidizing combustion takes place in the upper part. The processes that are under Such circumstances take place in a shaft furnace managed in this way, are the following:
Im oberen Theile des Ofens findet unter dem Einflufs der heifsen, aus dem unteren Theile des Ofens aufsteigenden Gase und der aufserdem überschüssig zugeführten Luft eine chlorirende Röstung der Erzbeschickung statt; die Temperatur ist so hoch, dafs das gebildete Chlorzink mit einein Theüe der Chloride der übrigen Metalle verdampft und von dem Gasstrom fortgeführt wird. .In the upper part of the furnace takes place under the influence of the hot, from the lower Part of the furnace and the excess air supplied chlorinating roasting of the ore charge takes place; the temperature is so high that what is formed Zinc chloride with one part of the chlorides of the remaining metals evaporated and from the gas stream is continued. .
Durch Waschen mit Wasser wird aus diesen Gasen das Chlorzink sowie die ebenfalls darin enthaltene Säure herausgelöst und eine Flüssigkeit gewonnen, aus welcher sich das mitgerissene Blei als schwerlösliches Bleichlorid, theilweise auch als Sulfat abscheidet und durch absichtlichen Zusatz von Schwefelsäure völlig ausgefällt werden kann, während die bleifreie Lösung in bekannter Weise auf Zink weiter verarbeitet wird.By washing with water, these gases become the zinc chloride and also those in it The acid contained in it is dissolved out and a liquid obtained from which the entrained Lead is deposited and penetrated as sparingly soluble lead chloride, partly also as sulphate Deliberate addition of sulfuric acid can be completely precipitated while the lead-free Solution is further processed in a known manner on zinc.
Das bis zur Mitte des Ofens niedergesunkene, von Zink gröfstentheils befreite Röstgut fällt nunmehr den im unteren Theile des Ofens vorherrschenden reducirenden Wirkungen des überschüssigen Brennstoffes anheim.The roasted material, which has sunk to the middle of the oven and has largely been freed from zinc, falls now the reducing effects of the prevailing in the lower part of the furnace excess fuel.
Die im Erz enthaltene Kieselsäure bildet mit dem Eisen, dem Alkali oder den Erdkalien
eine leichtflüssige Schlacke, während das Blei regulinisch oder als Stein ausgeschieden wird
und Kupfer sowie die vorhandenen Edelmetalle mit sich niederreifst. Das zeitweilig abgestochene
Rohblei wird dann durch bekannte Raffinationsverfahren von den
mengungen getrennt.The silicic acid contained in the ore forms a light slag with the iron, the alkali or the alkaline earth, while the lead is excreted regularly or as stone and copper and the existing precious metals rip down with it. The temporarily tapped raw lead is then by known refining processes from the
Mixtures separately.
genannten Bei-mentioned case
Claims (1)
Verfahren zur Entzinkung und weiteren Verarbeitung sulfidischer Mischerze in einem ununterbrochenen Arbeitsgange, dadurch gekennzeichnet, dafs die in bekannter Weise mit Kochsalz oder anderen Chloriden gemischten Erze in dem oberen Theile eines Schachtofens einer chlorirenden Röstung bei solcher Wärme unterworfen werden, dafs das gebildete Chlorzink verdampft, während die entzinkten Erze in dem unteren Theile des Ofens durch den hier zugesetzten Brennstoff in bekannter Weise reducirt werden.Patent claim:
Process for dezincification and further processing of sulphidic mixed ores in one uninterrupted operation, characterized in that the ores mixed in a known manner with table salt or other chlorides are subjected to chlorinating roasting in the upper part of a shaft furnace at such a heat that the chlorine-zinc formed evaporates while the dezincified ores in the lower part of the furnace are reduced in a known manner by the fuel added here.
Publications (1)
Publication Number | Publication Date |
---|---|
DE133321C true DE133321C (en) | 1900-01-01 |
Family
ID=401530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT133321D Expired DE133321C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE133321C (en) |
-
0
- DE DENDAT133321D patent/DE133321C/de not_active Expired
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