DE391594C - Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts - Google Patents

Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts

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Publication number
DE391594C
DE391594C DEG53873D DEG0053873D DE391594C DE 391594 C DE391594 C DE 391594C DE G53873 D DEG53873 D DE G53873D DE G0053873 D DEG0053873 D DE G0053873D DE 391594 C DE391594 C DE 391594C
Authority
DE
Germany
Prior art keywords
manganese
electrolysis
metallic
aqueous solutions
production
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
Application number
DEG53873D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
Original Assignee
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GRIESHEIM ELEKTRON CHEM FAB, Chemische Fabrik Griesheim Elektron filed Critical GRIESHEIM ELEKTRON CHEM FAB
Priority to DEG53873D priority Critical patent/DE391594C/en
Application granted granted Critical
Publication of DE391594C publication Critical patent/DE391594C/en
Expired legal-status Critical Current

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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
    • C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • C25C1/10—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of chromium or manganese

Description

Verfahren zur Gewinnung metallischen Mangans durch Elektrolyse der wässerigen Lösungen von Mangansalzen. Es ist seit den Arbeiten Bunsens bekannt, daß aus den wässerigen Lösungen der Mangansalze bei der Elektrolyse an der Kathode Niederschläge erhalten werden, die, sofern die Versuchsbedingungen richtig gewählt sind, metallisches Mangan enthalten. Man hat jedoch auf diese Weise bisher nicht technisch Mangan gewinnen können, weil die Niederschläge immer oxydhaltig sind und infolgedessen in schlecht haftender pulveriger Form sich abscheiden. Die einzige bisher bekannte Methode, ein reines Mangan aus wässeriger Lösung zu gewinnen, besteht darin, daß man eine Quecksilberkathode verwendet und das bei der Elektrolyse erhaltene Manganamalgan durch Destillation unter Luftausschluß von Quecksilber befreit. Bei diesem Verfahren erhält man ein feinkristallisiertes Pulver aus metallischem Mangan.Process for the extraction of metallic manganese by electrolysis of the aqueous solutions of manganese salts. It has been known since the work of Bunsen that from the aqueous solutions of the manganese salts during electrolysis at the cathode Precipitation can be obtained, provided the experimental conditions are chosen correctly contain metallic manganese. However, one has not yet done this technically able to extract manganese because the precipitates are always oxide-containing and as a result, in poorly adhering powdery form are deposited. The only hitherto known method of obtaining a pure manganese from aqueous solution consists in that one uses a mercury cathode and that obtained by electrolysis Manganese amalgan freed from mercury by distillation with exclusion of air. at This process gives a finely crystallized powder of metallic manganese.

Versuche, die zwecks Gewinnung von kompakten Blechen aus reinem Mangan durch Elektrolyse wässeriger Mangansalzlösungen durchgeführt wurden, ergaben folgendes z. Unterwarf man neutrale wässerige Lösungen von Mangansalzen der Elektrolyse, so gelang es nicht, reines Mangan zu erhalten, vielmehr bestanden die Niederschläge, z. B. bei der Elektrolyse einer Lösung, die q. Mol. Manganchlorür im Liter enthielt, bei der Stromdichte von o,2 Amp./qcm aus etwa 5o Prozent metallischem Mangan und etwa 50 Prozent Manganoxyd.Experiments that were carried out for the purpose of obtaining compact sheets from pure manganese by electrolysis of aqueous manganese salt solutions gave the following, for. If neutral aqueous solutions of manganese salts were subjected to electrolysis, it was not possible to obtain pure manganese. B. in the electrolysis of a solution that q. Mol. Manganese chlorine contained per liter, with a current density of 0.2 Amp./qcm of about 50 percent metallic manganese and about 50 percent manganese oxide.

2. Setzte man der zu elektrolysierenden Lösung Säure zu, so stieg der Gehalt des Niederschlages an metallischem Mangan; doch gelang es auch auf diese Weise nicht, Abscheidungen zu erhalten, die vollkommen frei von Oxyd sind und in Form von kompakten Blechen gewonnen werden.2. If acid was added to the solution to be electrolyzed, it rose the metallic manganese content of the precipitate; but it also succeeded in this Do not know how to obtain deposits that are completely free of oxide and in Form of compact sheets can be obtained.

Es wurde nun gefunden, daß oxydfreie Niederschläge von reinem metallischen Mangan in Form von kompakten Blechen- gewonnen werden können, wenn der zu elektrolysierenden Lösung Ammoniumsalze zugesetzt werden. Hierdurch kann erreicht werden, daß an der Kathode die Abscheidung von Manganoxyd bzw. Manganohydroxyd vermieden wird und, sofern reine Lösungen der Elektrolyse unterworfen werden, an der Kathode chemisch reines Metall in kompakter Form erhalten wird.It has now been found that oxide-free precipitates of pure metallic Manganese can be obtained in the form of compact sheet metal if the to be electrolyzed Solution ammonium salts are added. This can be achieved that at the Cathode the deposition of manganese oxide or manganese hydroxide is avoided and, if pure solutions are subjected to electrolysis, chemically at the cathode pure metal is obtained in compact form.

Beispiel: Aus einer Lösung, die 3 bis 3,5 Mol. Manganchlorür, r bis 2 Mol. Chlorammonium und 0,05 bis o,z5 Mol. Salzsäure im Liter enthielt, wurde bei Zimmertemperatur kompaktes und oxydfreies metallisches Mangan gewonnen. Der Zusatz von Säure ist jedoch nicht unbedingt erforderlich.. So wurde z. B. aus einer Manganazetatlösung, der Ammoniumazetat zugesetzt war, ebenfalls oxydfreies metallisches Mangan erhalten.Example: From a solution containing 3 to 3.5 moles of manganese chloride, r to 2 mol. Chlorammonium and 0.05 to 0.05 mol. Hydrochloric acid contained in the liter, was at Compact and oxide-free metallic manganese obtained at room temperature. The addition acid is not absolutely necessary. B. from a manganese acetate solution, to which ammonium acetate was added, oxide-free metallic manganese was also obtained.

Claims (1)

PATENT-ANspRUcH: Verfahren zur Gewinnung metallischen Mangans durch Elektrolyse der wässerigen Lösungen von Mangansalzen, dadurch gekennzeichnet, daß die Elektrolyse bei Gegenwart eines Ammoniumsalzes vorgenommen wird.PATENT CLAIM: Process for the extraction of metallic manganese by Electrolysis of aqueous solutions of manganese salts, characterized in that the electrolysis is carried out in the presence of an ammonium salt.
DEG53873D 1921-05-18 1921-05-18 Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts Expired DE391594C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG53873D DE391594C (en) 1921-05-18 1921-05-18 Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG53873D DE391594C (en) 1921-05-18 1921-05-18 Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts

Publications (1)

Publication Number Publication Date
DE391594C true DE391594C (en) 1924-03-08

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Family Applications (1)

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DEG53873D Expired DE391594C (en) 1921-05-18 1921-05-18 Process for the production of metallic manganese by electrolysis of the aqueous solutions of manganese salts

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DE (1) DE391594C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747249C (en) * 1939-10-20 1945-01-10 Process for the production of manganese
DE902314C (en) * 1938-08-25 1954-01-21 Du Pont Process for the production of alkali metals
DE1002132B (en) * 1952-06-03 1957-02-07 Electric Furnace Prod Co Process for the electrolytic production of metallic manganese

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902314C (en) * 1938-08-25 1954-01-21 Du Pont Process for the production of alkali metals
DE747249C (en) * 1939-10-20 1945-01-10 Process for the production of manganese
DE1002132B (en) * 1952-06-03 1957-02-07 Electric Furnace Prod Co Process for the electrolytic production of metallic manganese

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