DE135181C - - Google Patents
Info
- Publication number
- DE135181C DE135181C DENDAT135181D DE135181DA DE135181C DE 135181 C DE135181 C DE 135181C DE NDAT135181 D DENDAT135181 D DE NDAT135181D DE 135181D A DE135181D A DE 135181DA DE 135181 C DE135181 C DE 135181C
- Authority
- DE
- Germany
- Prior art keywords
- lead
- sulphate
- sulfate
- furnace
- zinc
- 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
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 claims description 7
- PIJPYDMVFNTHIP-UHFFFAOYSA-L Lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229910000464 lead oxide Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- 238000004904 shortening Methods 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 229940091251 Zinc Supplements Drugs 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000003009 desulfurizing Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000004763 sulfides Chemical class 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Das Verfahren ist dadurch gekennzeichnet, dafs den zu verarbeitenden sulfidischen Mischerzen Bleisulfat in wechselnden Mengen zugesetzt wird, welches im Verlauf des Verfahrens wiedergewonnen und wieder zugesetzt wird, so dafs ein Kreislaufverfahren entsteht.The process is characterized in that the sulfidic mixed ores to be processed are used Lead sulfate is added in varying amounts, which in the course of the process is recovered and added again, so that a cycle process is created.
In der Patentschrift 133805 ist gezeigt, dafs man beim Behandeln sulfidischer Mischerze im Röstofen durch Zusatz von Bleisulfat günstigere Ergebnisse erzielt. Es hat sich nun herausgestellt, dafs der Zusatz von Bleisulfat ebenso von Vortheil ist bei der Behandlung von solchen Erzen im Kupol- oder Gebläseofen. 'The patent specification 133805 shows that when treating sulphidic mixed ores Better results achieved in the roasting oven by adding lead sulphate. It has now it has been found that the addition of lead sulphate is also of advantage in the treatment of such ores in the cupola or fan furnace. '
Das sulfidische Erz, das entweder unmittelbar von der Grube kommt, oder aufbereitet oder, was meistens der Fall ist, in zerkleinertem oder gepulvertem Zustande vorliegt, wird zusammen mit Bleisulfat in verschiedenen Mengenverhältnissen, meist jedoch in solchen Mengen, dafs eine chemische Reaction in molekularen Verhältnissen stattfinden kann, in einen Ofen, zweckmäfsig einen Muffelofen von ähnlicher Bauart, wie sie als Retorten bei der Gaserzeugung verwendet werden, gebracht.The sulphidic ore that either comes directly from the mine or is processed or, which is mostly the case, in a comminuted or powdered state, comes together with lead sulphate in various proportions, but mostly in such amounts, that a chemical reaction can take place in molecular proportions, in an oven, expediently a muffle furnace of a similar type to that used as a retort for gas generation used, brought.
Es wird heifse Luft, zweckmäfsig mittelst Düsen, unter solchem Druck eingeblasen, dafs der zur Herbeiführung einer schnellen Reaction zwischen dem Sulfat und Sulfid erforderliche Sauerstoff vorhanden ist.Hot air is blown in, expediently by means of nozzles, under such pressure that that required to bring about a rapid reaction between the sulphate and sulphide Oxygen is present.
Ein Druck von 140 g pro qcm hat sich hierfür als geeignet erwiesen.A pressure of 140 g per square cm has proven to be suitable for this.
Der Ofen wird auf eine solche Temperatur erhitzt, dafs alles oder fast alles Blei und alles Zink verdampft.The furnace is heated to such a temperature that all or almost all of it is lead and all Zinc evaporates.
Während dieser Röstung findet eine Reaction zwischen dem Bleisulfat und dem Sulfid statt unter Entwicklung von Schwefeldioxyd und Umwandlung der Sulfide in Oxyde und des Bleisulfats in Bleioxyd, während alle oder fast alle flüchtigen Metalloxyde abdestilliren. Nach Beendigung der Schwefeldioxydentwicklung ist der erste Theil der Behandlung im Ofen beendet. During this roasting a reaction takes place between the lead sulphate and the sulphide with development of sulfur dioxide and conversion of the sulfides into oxides and des Lead sulphate in lead oxide, while all or almost all of the volatile metal oxides are distilling off. To When the evolution of sulfur dioxide has ended, the first part of the treatment in the furnace is over.
Man kann die beschriebene Behandlung auch in einem Schmelzofen vornehmen. In diesem Falle genügt es, nur einen solchen Theil des Bleies und Zinks abzudestilliren, dafs eine genügende Menge Bleisulfat wiedergewonnen werden kann, um einer folgenden Ofenbeschickung zugegeben werden zu können.The treatment described can also be carried out in a melting furnace. In this In this case it is sufficient to distill off only such a part of the lead and zinc that a sufficient one Amount of lead sulfate can be recovered to be added to a subsequent furnace charge.
Die abdestillirenden Gase und das Schwefeldioxyd gelangen in eine Kammer, die den bei der Schwefelsäurefabrikation verwendeten ähnlich ist.The distilling gases and the sulfur dioxide get into a chamber, which the with the sulfuric acid production used is similar.
Hier wird das Schwefeldioxyd in Schwefelsäure verwandelt, die, sowie sie gebildet ist, auf das Destillat unter Bildung von Bleisulfat und Zinksulfat bezw. Sulfaten der vorhandenen Oxyde einwirkt.Here the sulfur dioxide is converted into sulfuric acid, which, as soon as it is formed, BEZW on the distillate with the formation of lead sulfate and zinc sulfate. Sulfates of the existing Oxyde acts.
Das in Lösung befindliche Zinksulfat wird aus der Kammer abgelassen und nach einem der üblichen Verfahren zur Abscheidung des Zinks als Oxyd oder zur Wiedergewinnung der Schwefelsäure behandelt.The zinc sulfate in solution is drained from the chamber and after a the usual methods of depositing the zinc as oxide or recovering it treated with sulfuric acid.
Das unlösliche Bleisulfat wird gesammelt, getrocknet und geschmolzen und kann zur Entschwefelung einer weiteren Erzmenge verwendet werden.The insoluble lead sulfate is collected, dried and melted and can be used for Desulfurization of a further quantity of ore can be used.
Die anderen löslichen Sulfate werden auf -bekannte Weise gewonnen.The other soluble sulfates are obtained in a known manner.
Bei Verwendung eines Gebläseofens zum unmittelbaren Schmelzen des sulfidischen Erzes kann man mit Vortheil eine gröfsere Bleisulfatmenge zusetzen, weil hier der Luftsauerstoff weniger wirksam ist.When using a fan furnace for the immediate melting of the sulphidic ore a larger amount of lead sulphate can be added with advantage, because here the oxygen in the air is less effective.
Ein Mehrzusatz von ungefähr io pCt. Bleisulfat hat sich als genügend hierfür erwiesen.An additional addition of about 10 pct. Lead sulfate has proven to be sufficient for this.
In manchen Fällen ist es zweckmäfsig, das Verfahren so zu leiten, dafs zwar alles Zink, aber nur ein Theil des Bleies abdestillirt.In some cases it is expedient to conduct the process in such a way that all zinc, but only part of the lead is distilled off.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE135181C true DE135181C (en) |
Family
ID=403242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT135181D Active DE135181C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE135181C (en) |
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0
- DE DENDAT135181D patent/DE135181C/de active Active
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