DE352783C - Process for separating metals from their solutions - Google Patents
Process for separating metals from their solutionsInfo
- Publication number
- DE352783C DE352783C DE1920352783D DE352783DD DE352783C DE 352783 C DE352783 C DE 352783C DE 1920352783 D DE1920352783 D DE 1920352783D DE 352783D D DE352783D D DE 352783DD DE 352783 C DE352783 C DE 352783C
- Authority
- DE
- Germany
- Prior art keywords
- solutions
- copper
- metal
- metals
- separating metals
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G7/00—Compounds of gold
- C01G7/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G5/00—Compounds of silver
- C01G5/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Description
Verfahren zur Abscheidung von metallen aus ihren Lösungen. Deen Gegenstand vorli3gender Erfindung bildet ein Verfahren zur Abscheidung von Metallen in reiner Form aus ihren Salzlösungen unt.-r gleichzeitiger Rückgewinnung der gebunden gewesenen Säure.Process for the separation of metals from their solutions. Deen subject The present invention provides a method for the deposition of metals in pure Form from their salt solutions unt.-r simultaneous recovery of the bound Acid.
Zur Abscheidung von Metallen aus ihren Salzlösungen waren bisher drei Wege gegeben, und zwar einmal die elektrolytische Abscheidung mittels unlöslicher Anoden, dann die Fällung durch andere Metalle, welche ein höheres Elektrodenpotential als das aus seiner Salzlösung abzuscheidende Metall besitzen und schließlich die teilweise Fällung mit schwefliger Säure, speziell von Kupfer unter Druck.So far, three were used to separate metals from their salt solutions Ways given, namely once the electrolytic deposition by means of insoluble Anodes, then precipitation by other metals, which have a higher electrode potential than possess the metal to be deposited from its salt solution and finally the partial precipitation with sulphurous acid, especially copper under pressure.
Die Metallabscheidung auf elektrolytischem Wege mittels unlöslicher Anoden ermöglicht zwar die Rückgewinnung der dem abgeschiedenen Metall äquivalenten Mengen freier Säure oder Halogene, setzt aber hohe Kosten für elektrischen Energieaufwand, wie- auch komplizierte elektrolytische Anlagen, welche außerordentlich sorgfältiger Wartung bedürfen, voraus.The metal deposition by electrolytic means by means of insoluble Although anodes enables the recovery of the metal equivalent to the deposited metal Quantities of free acids or halogens, but entails high costs for electrical energy consumption, as well as complicated electrolytic systems, which are extremely meticulous Need maintenance ahead.
Ferner wirken höhere Gehalte an Fremdmetallsalzen, wie beispielsweise solche von Eisen und Arsen sowohl auf die Beschaffenheit des abzuscheidenden Metalles, wie auch auf den Stromnutzeffekt äußerst ungünstig und müssen, soweit sie einen gewissen Gehalt übersteigen, mit hohen Kosten und komplizierter. Arb ütsweise beseitigt werden.Furthermore, higher contents of foreign metal salts, such as, for example, have an effect those of iron and arsenic both on the nature of the metal to be deposited, as well as extremely unfavorable on the power efficiency and must, as far as they have one exceed certain salary, with high cost and more complicated. Eliminated by work will.
Die. Fällung von Metallen aus ihren Salzlösungen mittels elektropositiverer Metalle als die zu fällenden, wie beispielsweise die Abscheidung von Kupfer aus Salzlösungen mittels Eisen oder Zink als Zementkupfer, öder Silber mittels Kupfer oder Zink usw. setzen, abgesehen davon, daß das abgeschiedene Metall in diesem Falle nie in reiner Form zu erhalten, sondern vielmehr stets mit den Resten des Füllungsmetalls verunreinigt ist, immer den Verlust der äquivalenten Säuremengen und Wertverminderung des Fällungsmittels voraus.The. Precipitation of metals from their salt solutions by means of electropositive Metals than those to be precipitated, such as the deposition of copper Salt solutions using iron or zinc as cement copper, or silver using copper or zinc, etc., apart from the fact that the deposited metal in this case never to be obtained in pure form, but rather always with the remnants of the filling metal is contaminated, always the loss of the equivalent amounts of acid and depreciation of the precipitant.
Die Fällung mittels schwefliger Säure unter Druck, welche speziell für Kupfer vorgeschlagen worden ist, wobei neben metallischem Kupfer stets entsprechende Mengen Kupfersulfit gebildet werden, fand bisher keine industrielle Verwendung wegen der Schwierigkeit, die erforderlichen großen Mengen Schwefeldioxyd in genügender Konzentration und unter Druck in das Reaktionsgefäß einzuleiten.Precipitation by means of sulphurous acid under pressure, which special has been proposed for copper, with metallic copper always corresponding Amounts of copper sulfite are formed, has not found any industrial use because of the difficulty of obtaining the required large amounts of sulfur dioxide in sufficient quantities Concentration and to be introduced under pressure into the reaction vessel.
Wie Versuche ergaben, gelingt es, Metalle, beispielsweise Kupfer, Silber, Quecksilber, Gold usw. aus ihren Salzlösungen in vollkommen reiner Form abzuscheiden, wenn die Lösungen mit polysaccharidhaltigen, organischen Stoffen, wie Holzmehl, Stroh oder anderen pflanzlichen Stoffen, beispielsweise Laugen von Zelluloseaufschlüssen, sogenannten Zellstoffablaugen, Zucker, Melasse u. dgl. bei einem höheren als Atmosphärendruck in der Wärme behandelt werden.Tests have shown that metals such as copper Silver, mercury, gold, etc. from their salt solutions in a perfectly pure form to be separated if the solutions contain organic substances containing polysaccharides, such as wood flour, straw or other vegetable substances, for example lye from Cellulose digestions, so-called pulp waste liquors, sugar, molasses and the like a higher than atmospheric pressure in the heat.
Das betreffende Metall scheidet sich hierbei als feines Pulver am
Boden des Reaktionsgefäßes ab und kann mit dem noch unzeisetzt gebliebenen Fällungsmittel,
z. B. Zellulose, von der überstehenden Flüssigkeit abfiltriert und in einem Ofen
zusammengeschmolzen werden, wobei die noch anhaftende Zellulose gleichzeitig eine
Oxydation des Metalles verhindert. Die überstehende Lösung kann zur Auflösung neuer
Metallmengen wiederverwendet werden.
Kupferlösungen, die mit Holz
in Berührung sind, sollen unter gewissen Umständen eine Ab-
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE352783T | 1920-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE352783C true DE352783C (en) | 1922-05-04 |
Family
ID=6277565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1920352783D Expired DE352783C (en) | 1920-01-22 | 1920-01-22 | Process for separating metals from their solutions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE352783C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0908525A1 (en) * | 1997-09-22 | 1999-04-14 | Ces B.V. | Process for the recovery of metals. |
-
1920
- 1920-01-22 DE DE1920352783D patent/DE352783C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0908525A1 (en) * | 1997-09-22 | 1999-04-14 | Ces B.V. | Process for the recovery of metals. |
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