AT64400B - Process for the oxidation and deposition of iron in liquids. - Google Patents
Process for the oxidation and deposition of iron in liquids.Info
- Publication number
- AT64400B AT64400B AT64400DA AT64400B AT 64400 B AT64400 B AT 64400B AT 64400D A AT64400D A AT 64400DA AT 64400 B AT64400 B AT 64400B
- Authority
- AT
- Austria
- Prior art keywords
- iron
- oxidation
- liquids
- copper
- deposition
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 18
- 229910052742 iron Inorganic materials 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 7
- 239000007788 liquid Substances 0.000 title claims description 5
- 230000003647 oxidation Effects 0.000 title claims description 5
- 238000007254 oxidation reaction Methods 0.000 title claims description 5
- 230000008021 deposition Effects 0.000 title description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 239000005749 Copper compound Substances 0.000 claims 1
- 239000000969 carrier Substances 0.000 claims 1
- 150000001880 copper compounds Chemical class 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000002585 base Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical class [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 150000001879 copper Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000005324 oxide salts Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Description
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Verfahren zur Oxydation und Abscheidung von Eisen in Flüssigkeiten.
Die bisher in der Technik angewandten Verfahren zur Abscheidung des Eisens, das als Oxydulsalz in Lösungen vorhanden ist, bedingen zuerst eine Oxydation des Eisens durch verschiedene Oxydationsmittel, wie Chlor, Salpetersäure, unterchlorigsaure Salze, chlorsaure Salze, Superoxyde, übersaure Salze usw., oder durch den Sauerstoff der Luft, welch letzterer zur Erreichung einer schnelleren Wirkung zuweilen ozonisiert wird.
Mit Ausnahme des Sauerstoffes der Luft, der absorbiert wird, werden bei dem Oxydationsvorgang die oxydierenden Substanzen reduziert, also zerstört, ohne einer Regenerierung fähig zu sein.
Bei der Oxydation mit Luft ist es nötig, sehr grosse Menge von Luft durch die Flüssigkeiten durchzuleiten, meist unter Anwendung von Wärme, und trotzdem verläuft - auch bei Zusatz von Basen-die Reaktion so träge, dass technisch nur selten Gebrauch davon gemacht werden kann.
Dagegen oxydieren sich Cuproverbindungen, z. B. eine Lösung von Kupferchlorür in Ch) ornatrium oder anderen Chloriden, besonders bei Gegenwart einer Base, im Gegensatz zu den Ferrovùrbindungen durch den Sauerstoff der Luft schon in der Kälte sehr rasch zu basischen ('upriverbindungen, die sich aus der Flüssigkeit abscheiden.
Es wurde gefunden, dass Ferrosalzlösungen durch Cupriverbindungen, besonders bei
EMI1.1
Durch den Sauerstoff der Luft wird das beispielsweise augeführte Kupferchlorür leicht oxydiert, indem sich basisches Cuprisalz bildet, welches wieder zur Oxydation einer neuen Menge Eisen dient.
Dieses Verfahren ist besttttunt, auf die Laugen angewendet zu werden, die als lastige Eadlaugen bei den Kupferhütten erhalten werden.
Die Zink und Kupfer enthaltende Lauge, dte nach chlorierender Rüstung der kupfer- haltigen Kiesabbrände erhalten wird, wird gegenwärtig zur Gewinnung des Kupfers fast ausschliesslich mit Eisen zementiert, das an Stelle des Kupfers in Lösung geht. Die hiebei
EMI1.2
nicht ökonomisch weiterverarbeitet, werden, weil das in Oxydulform vorhandene Eisen einen zu grossen Aufwand an Oxydationsmitteln beansprucht hätte.
Nach dem vorliegenden Verfahren kann nun z. B. ein Teil der rohen, ursprünglichen kupferhaltigen Lauge als Sauerstoffuberträger verwendet worden, wobei zunächst 80 viel einer Base zugesetzt wird, als zur Fällung des Eisens notwendig ist. Die abfliessende, jetzt cupro- haltige, aber eisenfreie Zinklauge wird mit Luft behandelt, vorteilhaft unter gleichzeitigem weiteren Zusatz einer Base, bis alles Kupfer als basische Cupriverbindung abgeschieden ist.
Diese basische Cupriverbindung kann weiter auf Kupfersalze verarbeitet werden oder an Stelle der kupferhaltigen Rohlauge zur Abscheidung einer neuen Menge Eben aus der zementierten Lauge verwendet werden. Verwendet man als Base Zinkverl) indungen, so findet gleichzeitig eine Anreicherung der Lauge an Zink statt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the oxidation and deposition of iron in liquids.
The processes previously used in technology for the deposition of iron, which is present as the oxide salt in solutions, first of all require the iron to be oxidized by various oxidizing agents such as chlorine, nitric acid, hypochlorous salts, chloric salts, super oxides, acid salts, etc., or by the oxygen in the air, which the latter is sometimes ozonated to achieve a faster effect.
With the exception of the oxygen in the air, which is absorbed, the oxidizing substances are reduced in the process of oxidation, i.e. destroyed without being able to regenerate.
In the case of oxidation with air, it is necessary to pass a large amount of air through the liquids, usually with the use of heat, and yet - even with the addition of bases - the reaction is so slow that it can only rarely be used technically.
In contrast, cupro compounds are oxidized, e.g. B. a solution of copper chloride in sodium chloride or other chlorides, especially in the presence of a base, in contrast to the ferro-ferrous compounds, in the cold, the oxygen in the air very quickly becomes basic ('upri compounds which are separated from the liquid.
It has been found that ferrous salt solutions through cupriver connections, especially in
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The oxygen in the air slightly oxidizes the copper chloride, for example, in that basic cupric salt is formed, which again serves to oxidize a new amount of iron.
This method is besttttunt to be applied to the alkalis, which are obtained as cumbersome Eadlaugen at the copper works.
The lye containing zinc and copper, which is obtained after chlorinating the copper-containing gravel burns, is currently cemented almost exclusively with iron, which dissolves in place of the copper. The here
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are not economically processed, because the iron present in oxide form would have required too great a expenditure of oxidizing agents.
According to the present method, for. B. a part of the raw, original copper-containing liquor has been used as an oxygen carrier, initially 80 much of a base is added than is necessary for the precipitation of iron. The outflowing zinc hydroxide solution, which now contains cupric but is iron-free, is treated with air, advantageously with the simultaneous addition of a base, until all the copper has deposited as a basic cupric compound.
This basic cupric compound can be processed further on copper salts or used instead of the copper-containing raw liquor to separate a new amount of Eben from the cemented liquor. If zinc compounds are used as the base, the alkali is enriched in zinc at the same time.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE64400X | 1912-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT64400B true AT64400B (en) | 1914-04-10 |
Family
ID=5632429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT64400D AT64400B (en) | 1912-06-25 | 1913-01-10 | Process for the oxidation and deposition of iron in liquids. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT64400B (en) |
-
1913
- 1913-01-10 AT AT64400D patent/AT64400B/en active
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