DE464836C - Extraction of metal from alkali and alkaline earth metal residues - Google Patents
Extraction of metal from alkali and alkaline earth metal residuesInfo
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title description 14
- 239000002184 metal Substances 0.000 title description 14
- 239000003513 alkali Substances 0.000 title description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 title description 3
- 150000001342 alkaline earth metals Chemical group 0.000 title description 2
- 238000000605 extraction Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims description 7
- 239000000571 coke Substances 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- 150000001447 alkali salts Chemical class 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 150000008043 acidic salts Chemical class 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000010814 metallic waste Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- -1 residues Substances 0.000 description 1
- 239000000126 substance Substances 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
- C22B13/00—Obtaining 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.
Claims (1)
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) |
-
1926
- 1926-05-19 DE DEM94612D patent/DE464836C/en not_active Expired
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