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DE525687C - Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide - Google Patents

Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide

Info

Publication number
DE525687C
DE525687C DEK95289D DEK0095289D DE525687C DE 525687 C DE525687 C DE 525687C DE K95289 D DEK95289 D DE K95289D DE K0095289 D DEK0095289 D DE K0095289D DE 525687 C DE525687 C DE 525687C
Authority
DE
Germany
Prior art keywords
tin
sulfide
formation
batch
extraction
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
Application number
DEK95289D
Other languages
German (de)
Inventor
Dr-Ing Friedrich Johannsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp Grusonwerk AG
Original Assignee
Fried Krupp Grusonwerk AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fried Krupp Grusonwerk AG filed Critical Fried Krupp Grusonwerk AG
Priority to DEK95289D priority Critical patent/DE525687C/en
Application granted granted Critical
Publication of DE525687C publication Critical patent/DE525687C/en
Expired legal-status Critical Current

Links

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
    • C22B25/00—Obtaining tin
    • C22B25/02—Obtaining tin 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
    • C22B25/00—Obtaining tin
    • 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
    • C22B25/00—Obtaining tin
    • C22B25/06—Obtaining tin from scrap, especially tin scrap
    • 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

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  • 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

Gewinnung eines zinnhaltigen Flugstaubes aus zinnhaltigen Erzen und Hüttenprodukten unter Bildung von Zinnsulfid Die Erfindung betrifft ein Verfahren zur Gewinnung eines zinnhaltigen Flugstaubes aus zinnhaltigen Erzen und Hüttenprodukten unter Bildung von Zinnsulfid. Auf diesem Gebiete sind bereits verschiedene Vorschläge gemacht worden. «Neuerdings hat man vorgeschlagen, das Zinnsulfid dadurch zu bilden, daß über das metallhaltige Gut bei erhöhter Temperatur ein reduzierendes schwefelhaltiges Gasgemisch geleitet und die dabei verflüchtigte Metallschwefelverbindung verdichtet wird.Extraction of tin-containing fly ash from tin-containing ores and Metallurgical products with the formation of tin sulfide The invention relates to a method for the extraction of tin-containing fly ash from tin-containing ores and metallurgical products with the formation of tin sulfide. Various proposals have already been made in this area been made. «It has recently been suggested that tin sulfide be formed by that over the metal-containing material at elevated temperature a reducing sulfur-containing Gas mixture passed and the volatilized metal-sulfur compound is compressed will.

Gegenüber den bekannten Verfahren besteht die Erfindung darin, daß das Zinnsulfid, das entweder in der Charge enthalten ist oder infolge Vorhandenseins oder durch Zuschlag schwefelhaltiger Stoffe während des Prozesses innerhalb der Schicht gebildet wird, aus der Charge heraus als solches verflüchtigt wird, wobei innerhalb der Charge und, soweit möglich, auch an der Oberfläche der Schicht reduzierende Bedingungen eingehalten werden.Compared to the known method, the invention consists in that the tin sulfide, either in the batch or as a result of its presence or by adding sulfur-containing substances during the process within the Layer is formed, is volatilized out of the batch as such, wherein within the batch and, as far as possible, also on the surface of the layer Conditions are met.

Das Verfahren kann im kontinuierlichen Betrieb in einem direkt beheizten Drehofen ausgeführt werden. Falls eine Zugabe von Schwefel erforderlich ist, kann dieser in Form von Metallsulfid, z. 1i. Pyrit, Schwefelkies o. dgl., zugeschlagen «-erden. Durch Einhalten von reduzierenden Bedingungen innerhalb der Charge wird in dieser und auch unmittelbar an der Oberfläche derselben eine Oxvdation des Sulfides und damit eine Röstung des Stannosulfides vermieden. Die übrige Atmosphäre des Ofens kann hierbei eine oxydierende sein, denn es ist nicht erforderlich, daß auch in der Atmosphäre des Ofens reduzierende Bedingungen herrschen. Ist die Atmosphäre eine oxydierende, so kann das Zinnsulfid sofort bei dem Austritt aus der Charge verbrannt werden. Die Konzentration des Zinnsulfiddampfes in und über der Charge ist dann nur sehr gering, so daß die Umsetzung schnell und vollständig erfolgt. Die Vorteile des Verfahrens sollen an folgendem Ausführungsbeispiel gezeigt werden.The process can run continuously in a directly heated Rotary kiln are run. If an addition of sulfur is required, can this in the form of metal sulfide, e.g. 1i. Pyrite, pebbles or the like, slammed "-earth. By observing reducing conditions within the batch in this, and also immediately on the surface, an oxidation of the sulphide and thus avoids roasting of the stannous sulfide. The rest of the atmosphere in the oven can be an oxidizing one, because it is not necessary that in the atmosphere of the furnace is reduced. Is the atmosphere an oxidizing one, the tin sulphide can be released immediately upon leaving the batch to be burned. The concentration of tin sulfide vapor in and above the batch is then only very low, so that the implementation takes place quickly and completely. The advantages of the method are to be shown in the following exemplary embodiment.

Es wurde aus einer zinnhaltigen Schlacke etwa 1o °,!o Sn im Großbetrieb bei Zusatz von 8 "/o Pyrit und zo °/o feinem Abfallbrennstoff und bei einem Verbrauch von ; 0,/. Kohlenstaub in der Flammenbeheizung eine Zinnverflüchtigung von 96 bis 97 ° , im Durchschnitt der längeren Betriebsperiode erreicht.It was made from a tin-containing slag about 1o °, o Sn in large company with the addition of 8 "/ o pyrite and zo ° / o fine waste fuel and with a consumption of;!. 0, / pulverized coal in the burner heating a Zinnverflüchtigung 96-97 °, achieved on average over the longer operating period.

Wie schon oben gesagt, wird das Verfahren zweckmäßig in einem direkt beheizten Drehofen im kontinuierlichen Betrieb ausgeübt. Die-Brennstoffausnutzung bei der direkten Beheizung ist wesentlich vorteilhafter als bei der indirekten Wärmezufuhr, die früher bei bekannten Verfahren vorgeschlagen war. .As said above, the procedure is expedient in a direct way heated rotary kiln exercised in continuous operation. Die-fuel economy with direct heating is much more advantageous than with indirect heat supply, previously suggested in known methods. .

Claims (2)

PAT9NTANSPRÜCI-IE: i. Verfahren zur Gewinnung eines zinnhaltigen Flugstaubes aus zinnhaltigen Erzen und Hüttenprodukten unter Bildung von Zinnsulfid, dadurch gekennzeichnet, daß das in der Charge enthaltene oder durch vorhandene oder zugesetzte schwefelhaltige Stoffe gebildete Zinnsulfid aus der Charge heraus verflüchtigt wird, wobei innerhalb der Charge und, soweit möglich, auch an deren unmittelbaren Oberfläche reduzierende Bedingungen eingehalten werden. PATENT APPLICATION IE: i. Process for obtaining fly dust containing tin from tin-containing ores and metallurgical products with the formation of tin sulfide, thereby characterized that the contained in the batch or by existing or added tin sulphide formed from sulphurous substances is volatilized out of the batch, within the batch and, as far as possible, also on its immediate surface reducing conditions are observed. 2. Verfahren nach Anspruch =, dadurch gekennzeichnet, daß das Verfahren im kontinuierlichen Betriebe in einem direkt beheizten Drehofen ausgeführt wird.2. The method according to claim =, thereby characterized in that the process in continuous operations in a directly heated Rotary kiln is running.
DEK95289D 1925-08-08 1925-08-08 Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide Expired DE525687C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK95289D DE525687C (en) 1925-08-08 1925-08-08 Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK95289D DE525687C (en) 1925-08-08 1925-08-08 Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide

Publications (1)

Publication Number Publication Date
DE525687C true DE525687C (en) 1931-05-28

Family

ID=7238096

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK95289D Expired DE525687C (en) 1925-08-08 1925-08-08 Extraction of tin-containing fly dust from tin-containing ores and hut products with the formation of tin sulfide

Country Status (1)

Country Link
DE (1) DE525687C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501721A1 (en) * 1981-03-13 1982-09-17 Samim Soc Azionaria Minero Met METHOD AND APPARATUS FOR CONCENTRATING NON-FERROUS METALS SUCH AS ANTIMONY AND TIN BY VOLATILIZATION FROM RESPECTIVE ORES OR BYPRODUCTS, AND PROCESS FOR OBTAINING ANTIMONY AND TIN IN THE METAL STATE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501721A1 (en) * 1981-03-13 1982-09-17 Samim Soc Azionaria Minero Met METHOD AND APPARATUS FOR CONCENTRATING NON-FERROUS METALS SUCH AS ANTIMONY AND TIN BY VOLATILIZATION FROM RESPECTIVE ORES OR BYPRODUCTS, AND PROCESS FOR OBTAINING ANTIMONY AND TIN IN THE METAL STATE

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