DE521111C - Precipitation of copper from alkaline solutions containing copper and zinc - Google Patents
Precipitation of copper from alkaline solutions containing copper and zincInfo
- Publication number
- DE521111C DE521111C DEP60733D DEP0060733D DE521111C DE 521111 C DE521111 C DE 521111C DE P60733 D DEP60733 D DE P60733D DE P0060733 D DEP0060733 D DE P0060733D DE 521111 C DE521111 C DE 521111C
- Authority
- DE
- Germany
- Prior art keywords
- copper
- iron
- zinc
- precipitation
- precipitate
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 20
- 229910052802 copper Inorganic materials 0.000 title claims description 20
- 239000010949 copper Substances 0.000 title claims description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 6
- 229910052725 zinc Inorganic materials 0.000 title claims description 6
- 239000011701 zinc Substances 0.000 title claims description 6
- 238000001556 precipitation Methods 0.000 title claims description 5
- 239000012670 alkaline solution Substances 0.000 title description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 8
- 239000002244 precipitate Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- LYVWMIHLNQLWAC-UHFFFAOYSA-N [Cl].[Cu] Chemical compound [Cl].[Cu] LYVWMIHLNQLWAC-UHFFFAOYSA-N 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims 1
- 229940045803 cuprous chloride Drugs 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001342895 Chorus Species 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- HAORKNGNJCEJBX-UHFFFAOYSA-N cyprodinil Chemical compound N=1C(C)=CC(C2CC2)=NC=1NC1=CC=CC=C1 HAORKNGNJCEJBX-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
-
- 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
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
Ausfällung von Kupfer aus kupfer- und zinkhaltigen Laugen Bei der Gewinnung von Kupfer, Zink, Silber, Kobalt und anderen Metallen aus Erzen u. dgl. z. B. aus Kiesabbränden, wird ein Verfahren benutzt, bei dem die Metalle z. B. durch eine chlorierende Rösturig .und nachfolgendes Auslaugen in eine Lösung übergeführt werden, aus welcher sie nachher einzeln ausgefällt werden können. Für das Ausfällen gibt es min wiederum verschiedene Methoden, und zwar benutzt man entweder Säure oder Kupfer oder Eisen. Es ist auch bereits vorgeschlagen worden, außer demEisen gleichzeitig eine geringe Menge von Schwefeldioxyd (S02) zuzusetzen, und zwar mit Hilfe von besonderen Abgasen, die gleichzeitig zum Umrühren der Lauge verwendet werden. Alle diese bisher bekannten Verfahren haben aber verschiedene Übelstände, insbesondere deshalb, weil es notw=endig ist, das hinzugefügte Eisen wieder zu entfernen, was vielfach wegen des verhältnismäßig großen Eisenniederschlages sehr kostspielig ist und auch große Zinkverluste verursacht. Wenn man lediglich das Kupferchlorid mit schwefliger Säure reduziert, wird der Gehaltan freier Säure so groß; daß bei der nachfolgenden Fällung des Kupfers mit Hilfe von Eisen das Eisen angegriffen wird, so daß sich wiederum ein. sehr großer Eisenverbrauch ergibt.Precipitation of copper from alkaline solutions containing copper and zinc Extraction of copper, zinc, silver, cobalt and other metals from ores and the like. z. B. from gravel burns, a method is used in which the metals z. B. by a chlorinating roasting. and subsequent leaching converted into a solution from which they can be precipitated individually afterwards. For failing There are again different methods, either using acid or copper or iron. It has also been proposed, besides iron at the same time add a small amount of sulfur dioxide (SO2), namely with Help from special exhaust gases that are used at the same time to stir the lye will. However, all of these previously known methods have various drawbacks, especially because it is necessary to remove the iron that has been added, which is often very expensive because of the relatively large amount of iron precipitation and also causes great losses of zinc. If you only have the copper chloride reduced with sulphurous acid, the free acid content becomes so great; that at the subsequent precipitation of copper with the help of iron attacked the iron will, so turn a. very large iron consumption results.
Mit der Erfindung wird nun ein Verfahren vorgeschlagen, dessen Merkmal darin besteht, daß zunächst so viel schweflige Säure in die Lauge eingeleitet wird, bis sie eine Azidität von etwa 5 bis zo g/l Salzsäure erhält und dann die Endreduktion .zu Kupferchlorür mit metallischem Kupfer erfolgt, worauf schließlich entweder die so .erhaltene Lauge mit dem Kupferchlorürniederschlag mit Eisen behandelt oder der Kupferchlorürniederschlag von der Lauge getrennt und Niederschlag und Lauge .getrennt für sich mit Eisen behandelt werden. Die Vorteile dieses Verfahrens bestehen in der Hauptsache darin, @daß auf diesem Wege das gesamte Kupfer als Chorür unter Abwesenheit von Eisen niedergeschlagen wird. Erst bei der folgenden Weiterbehandlung des Niederschlags und der Lauge, entweder getrennt oder zusammen, wird Eisen benutzt und daraus ergibt sich ein wesentlich geringerer Eisenverbrauch als bei allen bisher bekannten Verfahren.With the invention, a method is now proposed whose feature consists in the fact that so much sulphurous acid is first introduced into the lye, until it has an acidity of about 5 to 10 g / l hydrochloric acid and then the final reduction .zu copper chloride with metallic copper, whereupon either the The lye obtained in this way is treated with the copper chlorine precipitate with iron or the Copper chlorine precipitate separated from the alkali and precipitate and alkali .separated be treated with iron by themselves. The advantages of this method are the main thing is that @ in this way the entire copper as a chorus in absence is knocked down by iron. Only with the subsequent further treatment of the precipitate and the liquor, either separately or together, is used to produce iron significantly lower iron consumption than with all previously known processes.
Das Verfahren nach der Erfindung erfolgt also in .der Weise, daß die kupfer- und zinkhaltigen Laugen zuerst mit schwefliger Säure in solcher Menge behandelt werden, daß eine schwachsaure Lösung unter gleichzeitiger Bildung von Kupferchlorür entsteht. Falls die vorhandenen Laugen keine Chloride enthalten, wird eine zu ihrer Erzeugung erforderliche Menge von Choriden zugesetzt. Nachher wird in die zum Teil reduzierte Lösung feinverteiltes Kupfer :eingeführt, und zwar zweckmäßig als Zementkupfer, wobei alles Kupfer in Chlorür ohne Erhöhung des Gehaltes der Lösung an Säure übergeführt wird. Ist nun ein überschuß an Zementkupfer vorhanden, fällt praktisch das gesamte in der Lösung vorhandene Silber und Gold aus. Das Kupferchlorür, das schwerlöslich ist, wird zum größten Teil ausgefällt und enthält dann das gesamte niedergeschlagene Silber. Zur Überführung des Kupfers in metallische Form wird entweder die Lösung mit dein ausgefällten Kupferchlorür seit Eisen behandelt oder das Kupferchlorür aus (der Lösung abgetrennt und an sich mit Eisen behandelt, wobei ein Zementkupfer mit hohem Silbergehalt erhalten wird. Das in der Lösung in gelöster Form zurückgebliebene Kupferchlorür kann in üblicher Weise (z. B. mit Eisen) ausgefällt werden:The method according to the invention is carried out in .der way that the Bases containing copper and zinc are first treated with sulphurous acid in such quantities be that a weakly acidic solution with simultaneous formation of copper chloride arises. If the alkaline solutions present do not contain chlorides, one becomes theirs Production required amount of chorides added. Afterwards in the part reduced solution of finely divided copper: introduced, specifically as cement copper, all copper being converted into chlorine without increasing the acid content of the solution will. If there is now an excess of cement copper, practically all of it falls silver and gold present in the solution. The copper chloride, that is sparingly soluble, is for the most part precipitated and then contains the whole downcast silver. To convert the copper into metallic form, either the solution treated with the precipitated copper chloride since iron or the copper chloride from (separated from the solution and treated per se with iron, being a cement copper with high silver content is obtained. That which remained in the solution in dissolved form Copper chloride can be precipitated in the usual way (e.g. with iron):
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP60733D DE521111C (en) | 1929-07-10 | 1929-07-10 | Precipitation of copper from alkaline solutions containing copper and zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP60733D DE521111C (en) | 1929-07-10 | 1929-07-10 | Precipitation of copper from alkaline solutions containing copper and zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE521111C true DE521111C (en) | 1931-03-18 |
Family
ID=7389514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP60733D Expired DE521111C (en) | 1929-07-10 | 1929-07-10 | Precipitation of copper from alkaline solutions containing copper and zinc |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE521111C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184594B (en) * | 1959-06-19 | 1964-12-31 | Gen Motors Corp | Process for the detoxification of solutions containing chromium and cyanide |
-
1929
- 1929-07-10 DE DEP60733D patent/DE521111C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184594B (en) * | 1959-06-19 | 1964-12-31 | Gen Motors Corp | Process for the detoxification of solutions containing chromium and cyanide |
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