DE879169C - Process for removing zinc from indium - Google Patents
Process for removing zinc from indiumInfo
- Publication number
- DE879169C DE879169C DEU286D DEU0000286D DE879169C DE 879169 C DE879169 C DE 879169C DE U286 D DEU286 D DE U286D DE U0000286 D DEU0000286 D DE U0000286D DE 879169 C DE879169 C DE 879169C
- Authority
- DE
- Germany
- Prior art keywords
- indium
- zinc
- removing zinc
- blown
- water vapor
- 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
- 239000011701 zinc Substances 0.000 title claims description 22
- 229910052738 indium Inorganic materials 0.000 title claims description 19
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 title claims description 19
- 229910052725 zinc Inorganic materials 0.000 title claims description 19
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 239000011787 zinc oxide Substances 0.000 claims description 5
- UVLYPUPIDJLUCM-UHFFFAOYSA-N indium;hydrate Chemical compound O.[In] UVLYPUPIDJLUCM-UHFFFAOYSA-N 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- BYHQTRFJOGIQAO-GOSISDBHSA-N 3-(4-bromophenyl)-8-[(2R)-2-hydroxypropyl]-1-[(3-methoxyphenyl)methyl]-1,3,8-triazaspiro[4.5]decan-2-one Chemical compound C[C@H](CN1CCC2(CC1)CN(C(=O)N2CC3=CC(=CC=C3)OC)C4=CC=C(C=C4)Br)O BYHQTRFJOGIQAO-GOSISDBHSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910007541 Zn O Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 150000003751 zinc 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
- C22B58/00—Obtaining gallium or indium
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
Verfahren zur Entfernung von Zink aus Indium Das bei der technischen Herstellung von Indium aus den Laugen ausgefällte und umgeschmolzene Rohindium enthält je nach der Herstellungsweise wechselnde eiengen Zink. Bei der Raffination auf elektrolytischem Wege läßt sich das Zink vom Indium ebenfalls nicht trennen, da durch den elektrischen Strom beide Elemente gleichzeitig an der Kathode niedergeschlagen werden.Process for removing zinc from indium The technical Production of indium from the alkalis contains precipitated and remelted raw indium different zinc depending on the production method. When refining on electrolytic The zinc cannot be separated from the indium by means of the electrical path either Current both elements are deposited at the same time at the cathode.
Es ist bekannt, durch partielle Oxydation gewisse Trennungen von zwei Metallen durchzuführen. Beispielsweise können Blei und Silber durch die Oxydation des Bleis bei erhöhten Temperaturen durch Überleiten eines Luftstromes getrennt werden. Auf ähnliche Art kann Blei von Zink durch Polen mit Luft und Wasser befreit «erden.It is known that partial oxidation causes certain separations of two Metals carry out. For example, lead and silver can be oxidized of the lead separated at elevated temperatures by passing a stream of air over it will. In a similar way, lead can be freed from zinc by poling with air and water "earth.
Obwohl Indium und Zink nun in der elektrolytischen Spannungsreihe so nahe beieinander stehen, daß die elektrolytische Abscheidung gleichzeitig erfolgt, ja daß sogar zu Beginn der Elektrolyse mehr Zink als Indium abgeschieden wird, wurde nun festgestellt, daß durch eine milde Oxydation durch Wasserdampf von beispielsweise 140' das Zink aus dem Indium restlos entfernt werden kann, ohne daß nennenswerte Verluste an Indium entstehen.Although indium and zinc are now in the electrolytic series are so close together that the electrodeposition takes place at the same time, yes, that even at the beginning of the electrolysis, more zinc than indium is deposited now found that by a mild oxidation by water vapor of for example 140 'the zinc can be completely removed from the indium without any significant Indium losses occur.
Gemäß der Erfindung wird das metallische zinkhaltige Indium in einem zylindrischen Gefäß, welches .zum .Schutz gegen Verluste durch Verspritzen nur zu ein Drittel gefüllt und mit einem lose sitzenden Deckel versehen ist, welcher das Ent%veichen des Wasserstoffs und des überschüssigen Wasserdampfs gestattet, eingeschmolzen und auf 3oo bis 700° erhitzt. Durch ein am Boden des Gefäßes endendes Rohr wird nunmehr Wasserdampf von i4o° in das Metallbad eingeblasen, wodurch sich- das in dem Indium enthaltene Zink nach der Umsetzung Zn -f- H2 O = Zn O -f- H2 oxydiert. Nach Beendigung des Einblasens von Wasserdampf sammelt sich das Zinkoxyd auf dem geschmolzenen Metall in Form einer zinkhaltigen Krätze, die abgenommen werden kann. Sie enthält nur i bis 2 % Indium und geht zur Aufarbeitung durch Laugung zurück. Das metallische Indium hat nach der Oxydation noch einen Gehalt von weniger als o,oi % Zink.According to the invention, the metallic zinc-containing indium is in one cylindrical vessel, which .for .protection against losses through splashing is only a third full and provided with a loosely fitting lid, which allows hydrogen and excess water vapor to escape, melted and heated to 3oo to 700 °. Through one that ends at the bottom of the vessel Pipe is now blown water vapor of 14o ° into the metal bath, whereby- the zinc contained in the indium oxidizes after the conversion Zn -f- H2 O = Zn O -f- H2. After the steam has been blown in, the zinc oxide collects on the molten metal in the form of a zinc-containing dross that can be removed. It contains only 1 to 2% indium and goes back for working up by leaching. The metallic indium still has a content of less than after oxidation o, oi% zinc.
Beispiel i io kg Indiummetall mit q.0/9 Zn werden auf 6oo° erhitzt, in das Metallbad wird Wasserdampf von i4ö°' eingeblasen. Einwirkungsdauer 25 Minuten. Das erhaltene Indium hat o,oi % Zn, `nährend in dem Zinkoxyd i,?, 11/o In festgestellt werden konnten. Beispiel 2 io kg Indium mit o,6% Zn werden auf q.50° erhitzt, in das Metallbad wird i5 Minuten Wasserdampf eingeblasen. Hierbei wird ein Metall mit o,oo8%Zn und ein Zinkoxyd mit i,oo/oIn erhalten.Example 10 kg of indium metal with q.0 / 9 Zn are heated to 600 °, Water vapor at 14 ° C is blown into the metal bath. Duration of action 25 minutes. The indium obtained has found 0.1% of Zn, nourishing in the zinc oxide, 1.5% of In could become. Example 2 10 kg of indium with 0.6% Zn are heated to 50 °, in steam is blown into the metal bath for 15 minutes. Here is a metal with o, oo8% Zn and a zinc oxide with i, oo / oIn obtained.
Das Verfahren eignet sich für die Gewinnung zinkarmen Indiums aus zinkhaltigem Indiummetall bis zu Gehalten von etwa i 5 % Zn. Je niedriger die Temperatur gehalten wird, desto länger ist die Reaktionsdauer mit Wasserdampf und desto ärmer ist das abgeschiedene Zinkoxyd an Indium.The process is suitable for the extraction of low-zinc indium zinc-containing indium metal up to a content of about i 5% Zn. The lower the temperature is held, the longer the reaction time with steam and the poorer is the deposited zinc oxide on indium.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU286D DE879169C (en) | 1942-04-02 | 1942-04-02 | Process for removing zinc from indium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU286D DE879169C (en) | 1942-04-02 | 1942-04-02 | Process for removing zinc from indium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE879169C true DE879169C (en) | 1953-06-11 |
Family
ID=7564801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEU286D Expired DE879169C (en) | 1942-04-02 | 1942-04-02 | Process for removing zinc from indium |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE879169C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1229304B (en) * | 1963-03-22 | 1966-11-24 | Siemens Ag | Process for producing high purity indium |
-
1942
- 1942-04-02 DE DEU286D patent/DE879169C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1229304B (en) * | 1963-03-22 | 1966-11-24 | Siemens Ag | Process for producing high purity indium |
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