DE2425233B2 - PROCESS FOR THE EXTRACTION OF GALLIUM - Google Patents
PROCESS FOR THE EXTRACTION OF GALLIUMInfo
- Publication number
- DE2425233B2 DE2425233B2 DE19742425233 DE2425233A DE2425233B2 DE 2425233 B2 DE2425233 B2 DE 2425233B2 DE 19742425233 DE19742425233 DE 19742425233 DE 2425233 A DE2425233 A DE 2425233A DE 2425233 B2 DE2425233 B2 DE 2425233B2
- Authority
- DE
- Germany
- Prior art keywords
- gallium
- extraction
- mercury
- amalgam
- sodium
- 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.)
- Granted
Links
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 title claims description 18
- 229910052733 gallium Inorganic materials 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 13
- 238000000605 extraction Methods 0.000 title claims description 9
- 229910052753 mercury Inorganic materials 0.000 claims description 10
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910000497 Amalgam Inorganic materials 0.000 claims description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 2
- MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 2
- 229910001023 sodium amalgam Inorganic materials 0.000 claims description 2
- 239000012071 phase Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/22—Electrolytic production, recovery or refining of metals by electrolysis of solutions of metals not provided for in groups C25C1/02 - C25C1/20
-
- 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
- C22B58/00—Obtaining gallium or indium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
dient,serves,
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Extraktion des Natriums in einer ersten Stufe und die des Galliums in einer zweiten Stufe vorgenommen wird.2. The method according to claim 1, characterized in that the extraction of the sodium in one first stage and that of the gallium is made in a second stage.
3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Extraktion des Natriums in einer alkalihaltigen, aber galliumfreien Lösung vorgenommen wird.3. The method according to claim 1 and 2, characterized in that the extraction of the sodium in an alkaline but gallium-free solution is made.
4. Verfahren nach Anspruch 1-3, dadurch gekennzeichnet, daß die Extraktion des Galliums in eine mit Gallium angereicherte Lösung erfolgt.4. The method according to claim 1-3, characterized in that the extraction of the gallium in a solution enriched with gallium takes place.
5. Verfahren nach Anspruch 1 —4, dadurch gekennzeichnet, daß die Abscheidung des Galliums durch Hilfselektrode (5) unterstützt wird.5. The method according to claim 1-4, characterized in that the deposition of the gallium is supported by the auxiliary electrode (5).
6. Verfahren nach Anspruch 1—5, dadurch gekennzeichnet, daß die oberhalb der Hg-haltigen Phase stehende Gallatlösung einer kontinuierlichen Filtration unterworfen wird.6. The method according to claim 1-5, characterized in that the above the Hg-containing Phase standing gallate solution is subjected to continuous filtration.
7. Verfahresn nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß die als Kathode dienende Metallelektrode aus Nickel besteht.7. Verfahresn according to claim 1 to 6, characterized in that serving as the cathode Metal electrode is made of nickel.
40 rationellerem Quecksilber-Einsatz bessere Ausbeuten 40 more rational use of mercury, better yields
''e^ert· , an wirrt dies dadurch erreicht, daß der'' e ^ ert ·, this is achieved by the
, I1"""?ivÄcke traktionsprozeß durch Anlegen, I 1 """? Iv bags traction process by berthing
e ektr° K rischenSannung unterstützt wird, wobei die eHiereektr.schenSpannu g wird wähpend e EKTR ° K rischenSannung is supported, wherein the eHiereektr.schenSpannu g wähpend
Hg-halUge Phase a^ Anode eiäche ^Hg-halUge phase a ^ anode surface ^
eine oberhalb der UuecKS.' dj Diese Kathode kannone above the U uecKS . ' dj This cathode can
Die Erfindung betrifft ein Verfahren zur Extraktion von Gallium aus Galliumamalgam, das durch Umsetzung von Natriumaluminatlaugen des Bayer-Aluminiumoxidprozesses mit Natriumamalgam gewonnen wird, wobei das im Quecksilber angereicherte Gallium mit alkalischen Medien extrahiert wird.The invention relates to a method for extracting gallium from gallium amalgam, which is produced by reaction is obtained from sodium aluminate liquors of the Bayer aluminum oxide process with sodium amalgam, whereby the mercury is enriched Gallium is extracted with alkaline media.
Es bestand nun die Aufgabe, diese aus DBP 12 60 und DBP 11 15 031 skizzierte bekannte Arbeitsweise zu verbessern und ein Verfahren zu schaffen, das bei einer kontinuierlichen Durchführung und bei gleichzeitigThe task now was to convert these from DBP 12 60 and DBP 11 15 031 outlined known mode of operation improve and create a process that can be carried out continuously and at the same time
aus dem das Natrium w« from which the sodium is
Quecksilber das elektronegativere Natrium in Lösung gegangen ist. Nach Auswechseln der über der Hg-haltigen Phase stehenden Lauge kann dann der elektrolytische Extraktionsprozeß fortgesetzt werden, wobei das Gallium in Lösung geht und sich an der Kathode 3 niederschlägt. Um die Extraktion des Galliums aus dem Quecksilber und dessen Abscheidung an der Kathode stets im gleichem Maße vornehmen zu können, können Hilfselektroden dazugeschaltet werden. Anstelle der Zuschaltung dieser Hilfselektroden kann ein Teil der elektrolytischen Abscheidung von Gallium aus der Lauge auch in einem zweiten Behälter vorgenommen werden.Mercury the more electronegative sodium has gone into solution. After replacing the above In the Hg-containing phase, the electrolytic extraction process can then be continued. the gallium going into solution and precipitating on the cathode 3. To enable the extraction of the Gallium from the mercury and its deposition at the cathode always to the same extent auxiliary electrodes can be switched on. Instead of connecting these auxiliary electrodes part of the electrolytic deposition of gallium from the liquor also in a second container be made.
Der Extraktionsvorgang des Galliums aus Quecksilber kann auch in einem einzigen Verfahrensschritt durchgeführt werden, nur wirkt sich dann als nachteilig aus, daß sich die über dem Quecksilber stehende Lauge zu stark mit Alkali anreichert, so daß periodisch zumindest ein Teil des Elektrolyten gegen reines Wasser ausgetauscht werden muß.The gallium extraction process from mercury can also be carried out in a single process step be carried out, only then has a disadvantageous effect that the lye standing above the mercury too strongly enriched with alkali, so that periodically at least part of the electrolyte against pure Water needs to be replaced.
In der Zeichnung bedeuten im einzelnen 1 die anodisch geschaltete Hg-haltige Phase, 2 die wäßrige alkalihakige Phase, 3 die Kathode, die entweder, wie in der Figur in der Mitte, aber auch an anderer Stelle und in anderer Form in die Flüssigkeitsphase 2 ragt.In the drawing, 1 denotes in detail the anodic switched Hg-containing phase, 2 the aqueous alkali-hook phase, 3 the cathode, which either, as in the The figure protrudes into the liquid phase 2 in the middle, but also at another point and in a different shape.
Die Hilfselektrode 5 (+ ) ermöglicht ein gekoppelt gleichförmig anodisches lnlösunggehen wie auch kathodisches Abschneiden des Galliums. Mit dem Rührwerk 4 wird das Hg gerührt, um eine ständig neue mit Gallium beladene Oberfläche für die elektrolytische Auflösung an der Grenzfläche Lauge — QuecksilberThe auxiliary electrode 5 (+) enables a coupled uniform anodic dissolution as well cathodic cutting of the gallium. With the agitator 4 the Hg is stirred to a constantly new one Gallium-laden surface for electrolytic dissolution at the alkali-mercury interface
anzubieten.to offer.
Das an der Eiekirode 3 sich abscheidende flüssige Gallium wird in dem Sammelbehälter 6 aufgefangen und gegen die quecksilberhaltige Phase abgegrenzt. Durch den Auslaß 7 wird das flüssige Gallium periodisch abgelassen.The liquid gallium deposited on the Eiekirode 3 is collected in the collecting container 6 and delimited from the phase containing mercury. Through the outlet 7 the liquid gallium becomes periodic drained.
4545
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742425233 DE2425233C3 (en) | 1974-05-24 | Process for the extraction of gallium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742425233 DE2425233C3 (en) | 1974-05-24 | Process for the extraction of gallium |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2425233A1 DE2425233A1 (en) | 1975-12-11 |
| DE2425233B2 true DE2425233B2 (en) | 1977-07-07 |
| DE2425233C3 DE2425233C3 (en) | 1978-02-16 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| DE2425233A1 (en) | 1975-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |