DE381421C - Cathode for the electrolytic preparation of sodium perborate - Google Patents

Cathode for the electrolytic preparation of sodium perborate

Info

Publication number
DE381421C
DE381421C DED32297D DED0032297D DE381421C DE 381421 C DE381421 C DE 381421C DE D32297 D DED32297 D DE D32297D DE D0032297 D DED0032297 D DE D0032297D DE 381421 C DE381421 C DE 381421C
Authority
DE
Germany
Prior art keywords
cathode
sodium perborate
electrolytic preparation
nickel
electrolytic
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
DED32297D
Other languages
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to DED32297D priority Critical patent/DE381421C/en
Application granted granted Critical
Publication of DE381421C publication Critical patent/DE381421C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/28—Per-compounds
    • C25B1/32—Perborates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Description

Kathode für die elektrolytische Natriumperboratdarstellung. Zusatz zum Patent 378891. Das Patent 378891 schützt ein Verfahren zur elektrolytischen Natriumperboratdarstelhing, bei welchem Kathoden aus solchen Metallen, die für sich oder in ihren Verbindungen auf Perborat katalytisch zersetzend wirken, verwendet werden.Cathode for the electrolytic preparation of sodium perborate. additive to the patent 378891. The patent 378891 protects a method for electrolytic Sodium Perboratdarstelhing, in which cathodes made of such metals, for themselves or have a catalytically decomposing effect on perborate in their compounds will.

Wie bereits in dem Hauptpatent zum Ausdruck gebracht worden ist, empfiehlt es sich, derartige Kathoden, soweit sie bzw. ihre Stromzuführungen aus der Elektrolytflüssigkeit herausragen, zu schützen, weil dieselben an den Stellen, an welchen sie der gleichzeitigen Einwirkung von Flüssigkeit und Luft ausgesetzt sind, angegriffen werden. Als geeigneter Schutzüberzug ist z. B. Platin genannt.As has already been expressed in the main patent, recommends it is, such cathodes, as far as they or their power supply from the electrolyte liquid protrude to protect, because the same in the places where they of the simultaneous Exposed to the action of liquid and air. As more suitable Protective coating is z. B. called platinum.

Es wurde nun die überraschende Beobachtung gemacht, daß unter allen als Kathodenmaterial in Betracht kommenden Stoffen Nickel insofern eine Ausnahmestellung einnimmt, als dieses auch an der Berührungszone von Elektrolytflüssigkeit und Luft nicht anlegriften wird. Auf Grund dieser Erkenntnis ist man in der Lage, die aus anderen Stoffen als Nickel bestehenden Elektroden an der Gefahrzone durch Nickel zu schützen. Man kann z. B. Eisen-oder Kupferelektroden an den bedrohten Stellen aus Nickel ausbilden oder durch Nickelüberzüge schützen.The surprising observation has now been made that among all As a cathode material, nickel is an exception occupies than this also at the contact zone of electrolyte liquid and air will not attack. On the basis of this knowledge one is able to find out substances other than nickel existing electrodes on the danger zone due to nickel to protect. You can z. B. Iron or copper electrodes in the threatened areas Form from nickel or protect with nickel coatings.

Die Verwendbarkeit des Nickels zu diesem Zweck war um so weniger vorauszusehen, als, wie bereits gesagt worden ist, alle übrigen in Betracht kommenden unedlen Metalle bei gleichzeitiger Einwirkung von Elektrolytflüssigkeit und Luft angegriffen werden.The usefulness of nickel for this purpose was all the less predictable, than, as has already been said, all the other base metals under consideration be attacked by simultaneous exposure to electrolyte fluid and air.

Claims (1)

PATENT-ANsPRUCH: Kathode für die elektrolytische Natriumperboratdarstellung nach y Patent 378894 dadurch gekennzeichnet, daß sie nur an ihrer Eintauchstelle aus Nickel besteht oder durch Nickel geschützt ist.PATENT CLAIM: Cathode for the electrolytic preparation of sodium perborate according to y patent 378894 characterized in that it is only at its immersion point consists of nickel or is protected by nickel.
DED32297D 1916-01-22 1916-01-22 Cathode for the electrolytic preparation of sodium perborate Expired DE381421C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED32297D DE381421C (en) 1916-01-22 1916-01-22 Cathode for the electrolytic preparation of sodium perborate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED32297D DE381421C (en) 1916-01-22 1916-01-22 Cathode for the electrolytic preparation of sodium perborate

Publications (1)

Publication Number Publication Date
DE381421C true DE381421C (en) 1923-09-20

Family

ID=7041250

Family Applications (1)

Application Number Title Priority Date Filing Date
DED32297D Expired DE381421C (en) 1916-01-22 1916-01-22 Cathode for the electrolytic preparation of sodium perborate

Country Status (1)

Country Link
DE (1) DE381421C (en)

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