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DE464836C - Extraction of metal from alkali and alkaline earth metal residues - Google Patents

Extraction of metal from alkali and alkaline earth metal residues

Info

Publication number
DE464836C
DE464836C DEM94612D DEM0094612D DE464836C DE 464836 C DE464836 C DE 464836C DE M94612 D DEM94612 D DE M94612D DE M0094612 D DEM0094612 D DE M0094612D DE 464836 C DE464836 C DE 464836C
Authority
DE
Germany
Prior art keywords
metal
alkaline earth
alkali
residues
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
DEM94612D
Other languages
German (de)
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.)
Metallhuettenwerke Schaefer &
OTTO NAESER DIPL ING
Original Assignee
Metallhuettenwerke Schaefer &
OTTO NAESER DIPL ING
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 Metallhuettenwerke Schaefer &, OTTO NAESER DIPL ING filed Critical Metallhuettenwerke Schaefer &
Priority to DEM94612D priority Critical patent/DE464836C/en
Application granted granted Critical
Publication of DE464836C publication Critical patent/DE464836C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B13/00Obtaining lead

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

Gewinnung von Netall aus alkali- und erdalkalihaltigen Retallrückständen Die Verhüttung von oxydierten metallischen Abfällen, Rückständen, Aschen, die von alkali- und erdallcalihaltigen Metallegierungen (Lagermetallen) herrühren, erfolgte bisher in der Weise, daß die Alkalien und Erdalkalien irgendwie verschlackt werden mußten, sei es im Schachtofen oder Flammofen.Extraction of netall from alkali and alkaline earth containing retall residues The smelting of oxidized metallic waste, residues, ashes produced by metal alloys (bearing metals) containing alkali and alkaline earth, took place so far in such a way that the alkalis and alkaline earths are somehow slagged had to, be it in the shaft furnace or flame furnace.

Dieses Verfahren hatte den Nachteil, daß infolge der dabei erforderlichen Schlackenzusätze und anderer Zuschläge das sonst sehr reine Metall erhebliche Verunreinigungen aus der Beschickung des Schachtofens aufnahm; die erst durch einen weiteren Raffinierprozeß wieder entfernt werden mußten. BeimFlammofenprozeß zeigte sich der großeNachteil, daß die Alkalien und Erdalkalien im oxydierten Zustande die Innenmauerung sehr bald zerstörten, indem sie den Schamottestein verschlackten, wogegen man sich nur durch teure Magnesitsteine schützen konnte.This method had the disadvantage that as a result of the necessary Additions of slag and other aggregates make the otherwise very pure metal significant impurities received from the loading of the shaft furnace; only through a further refining process had to be removed again. The flame furnace process showed the major disadvantage that the alkalis and alkaline earths, in the oxidized state, very quickly form the inner wall destroyed by slagging the firebrick, whereas one can only go through could protect expensive magnesite bricks.

Nach dem neuen Verfahren erfolgt so7usagen eine chemische Bindung, indem die Alkalien und Erdalkalien von Säuren oder sauren Salzen aufgenommen werden und saure bzw. neutrale Salze bilden unter Freilegung des Metalls, wobei die Salzschicht gleichzeitig die Oxvdation des Metalls verhindert und selbst kein Metall aufnimmt. Das Ausbringen ,in Metall ist 98 bis roo°/" und bedarf keiner weiteren Raffination.According to the new process, there is a chemical bond, in that the alkalis and alkaline earths are absorbed by acids or acidic salts and form acidic or neutral salts with exposure of the metal, the salt layer at the same time prevents the oxidation of the metal and does not absorb any metal itself. The yield, in metal, is 98 to roo ° / "and does not require any further refining.

Dieses Verfahren ist erheblich wirtschaftlicher als die bis dato bekannten Arbeitsmethoden und kann ohne Schwierigkeit selbst im Schmelzkessel durchgeführt werden. Beschreibung. Die zu verhüttenden Metallabfälle und Rückstände der Alkali- und Erdalkali-Lagermetalle und .erbsengroßer Koks (oder Kohle) und Säure oder saure Salze werden gut durchmischt in ein heißes vorhandenes Metallbad eingetragen mit der Ma:ßb be, daß die Mischung am zweckmäßigsten an einerInnenseite des Ofens oder Kessels aufgeschichtet wird und gleichzeitig noch Koksstaub und Säure oder Kohle und saures Salz darübergestreut werden, um Oxydationen zu verhindern. Nach einer gewissen Zeit wird die ganze Mischung allmählich ins Metallbad eingetränkt. Metall wird vom Bade aufgenommen, das durch entstandene Salzschlacke völlig überschichtet wird. Beispiel. Vorlaufen: 1985 kg Raffinadbl.ei als Bad, i 143 - stark oxydierte weiße Bahnmetall- späne, 35 - K=ohle, gestampft, i 5 - Koks, erbsengroß, So - N a-Bisulfat. A u s b r i n g e n an Blei abzüglich des Bades war r 116 kg. Das Metallausbringen, bezogen auf Metallinhalt des Vorlaufens, beträbgt je nach Beschaffenheit des Einsatzes 98 bis 1001/1'.This process is considerably more economical than the previously known working methods and can even be carried out in the melting kettle without difficulty. Description. The metal waste to be smelted and residues of the alkali and alkaline earth metal bearing metals and .pea-sized coke (or coal) and acid or acidic salts are well mixed and introduced into a hot metal bath with the measure that the mixture is best placed on the inside of the Oven or kettle is piled up and at the same time coke dust and acid or coal and acid salt are sprinkled over it to prevent oxidation. After a while, the whole mixture is gradually soaked into the metal bath. Metal is absorbed by the bath, which is completely covered by the resulting salt slag. Example. Forward: 1985 kg Raffinadbl.ei as bath, i 143 - heavily oxidized white track metal chips, 35 - K = ohle, stamped, i 5 - coke, the size of a pea, So - Na-bisulfate. The lead, minus the bath, was r 116 kg. The metal output, based on the metal content of the advance, amounts to 98 to 1001/1 'depending on the nature of the insert.

Claims (1)

PATENTANSPRUCI3: Verfahren zum Einschmelzen von alkali-und erdalkalihaltigen Bleiabfällen und Rückständen, dadurch gekennzeichnet, daß diese mit erbsengroßem Koks und Schwefelsäure oder sauren Alkalisalzen, vorztigsweiseNa-Bisulfat, gemischt und in ein hocherhitztes Bleibad eingetragen werden.PATENT CLAIM3: Process for melting down alkaline and alkaline earth containing Lead waste and residues, characterized in that these with pea-sized Coke and sulfuric acid or acidic alkali salts, preferably Na-bisulfate, mixed and entered into a highly heated lead bath.
DEM94612D 1926-05-19 1926-05-19 Extraction of metal from alkali and alkaline earth metal residues Expired DE464836C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM94612D DE464836C (en) 1926-05-19 1926-05-19 Extraction of metal from alkali and alkaline earth metal residues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM94612D DE464836C (en) 1926-05-19 1926-05-19 Extraction of metal from alkali and alkaline earth metal residues

Publications (1)

Publication Number Publication Date
DE464836C true DE464836C (en) 1928-08-29

Family

ID=7322752

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM94612D Expired DE464836C (en) 1926-05-19 1926-05-19 Extraction of metal from alkali and alkaline earth metal residues

Country Status (1)

Country Link
DE (1) DE464836C (en)

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