DE468213C - Production of alkali iodine data - Google Patents

Production of alkali iodine data

Info

Publication number
DE468213C
DE468213C DEI32520D DEI0032520D DE468213C DE 468213 C DE468213 C DE 468213C DE I32520 D DEI32520 D DE I32520D DE I0032520 D DEI0032520 D DE I0032520D DE 468213 C DE468213 C DE 468213C
Authority
DE
Germany
Prior art keywords
alkali
production
iodate
iodide
oxygen
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
DEI32520D
Other languages
German (de)
Inventor
Dr Heinrich Heimann
Dr Hans-Bernhard Seebohm
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI32520D priority Critical patent/DE468213C/en
Application granted granted Critical
Publication of DE468213C publication Critical patent/DE468213C/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
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/22—Oxygen compounds of iodine

Description

Herstellung von Alkalijodaten In den Patentschriften 451 656 und 453 127 ist ein Verfahren zur Herstellung von Alkalijodaten durch Einwirkenlassen von Sauerstoff oder sauerstoffabgebenden Stoffen auf eine Schmelze von Alkalihydroxyd und Jodid beschrieben. Diese Reaktion verläuft jedoch bei gewöhnlichem Druck ziemlich langsam, weshalb vorzugsweise unter erhöhtem Druck gearbeitet wird.Production of alkali iodates Patents 451 656 and 453 127 describe a process for the production of alkali iodates by allowing oxygen or oxygen-releasing substances to act on a melt of alkali hydroxide and iodide. However, this reaction proceeds rather slowly at ordinary pressure, which is why it is preferred to operate under increased pressure.

Wie gefunden wurde, kann auch bei gewöhnlichem Druck die Reaktion erheblich beschleunigt werden, wenn man dem Alkalijodid als Katalysatoren außer Alkalihydroxyd noch Metalloxyde, z. B. Oxyde der Erdmetalle oder der Schwermetalle, gegebenenfalls Gemische verschiedener Metalloxyde, zusetzt.As has been found, the reaction can take place even at ordinary pressure can be accelerated considerably if one except the alkali iodide as catalysts Alkali hydroxide or metal oxides, e.g. B. Oxides of earth metals or heavy metals, optionally mixtures of different metal oxides added.

Indem man das gebildete Alkalijodat in bekannter Weise durch Erhitzen bis zum Schmelzen in Alkalijodid und Sauerstoff spaltet, kann man auf die glatte Herstellungsweise des Alkalijodats eine technisch brauchbare Gewinnung von Sauerstoff gründen. Das durch eine geringe Temperatursteigerung des Jodats regenerierte Jodid kehrt dann immer wieder in den Prozeß zurück.By the alkali iodate formed in a known manner by heating until it melts into alkali iodide and oxygen, one can use the smooth Production method of the alkali iodate a technically useful production of oxygen establish. The iodide regenerated by a slight increase in the temperature of the iodate then always returns to the process.

Beispiel i Über eine Schmelze von 3 Teilen Kaliumhydroxyd und i Teil Kaliumjodid, der i 0'o Wismutoxyd zugesetzt ist, wird bei 525° Luft geleitet. In einer Stunde haben sich So o,ö der theoretisch möglichen Menge Jodat gebildet. Steigert man darauf die Temperatur auf 6oo°, so gibt die Schmelze Sauerstoff ab und enthält nur noch 5 0;ö Jodat.Example i About a melt of 3 parts of potassium hydroxide and i part Potassium iodide, to which 100 bismuth oxide has been added, is passed through air at 525 °. In One hour, so o, o the theoretically possible amount of iodate has formed. Increases if the temperature is then raised to 600 °, the melt gives off oxygen and contains it only 50; ö iodate.

Beispiel 2 Über eine Schmelze von 3 Teilen Kaliumhydroxyd und i Teil Kaliumjodid, der 40/'o Aluminiumoxyd zugesetzt sind, wird bei 450° Luft geleitet. In einer Stunde haben sich 50 0'o der theoretisch möglichen Menge Jodat gebildet. Steigert man darauf die Temperatur auf 575°, so gibt die Schmelze Sauerstoff ab und enthält nur noch 15 0fo Jodat.EXAMPLE 2 Air is passed at 450 ° over a melt of 3 parts of potassium hydroxide and 1 part of potassium iodide to which 40% aluminum oxide has been added. In one hour, 50% of the theoretically possible amount of iodate was formed. Is raised to the temperature to 575 ° so the melt oxygen are, and contains only 1 5 0fo iodate.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Alkalijodaten aus Alkalijodiden nach Patent .15I 656, dadurch gekennzeichnet, daß man als Katalysatoren neben Alkalihydroxyden noch Metalloxyde anwendet. PATENT CLAIMS: i. Process for the preparation of alkali iodine data Alkali iodides according to patent .15I 656, characterized in that the catalysts uses metal oxides in addition to alkali hydroxides. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß man es als Teil eines Kreisprozesses ausführt, bei welchem Bildung des Jodats aus Jodid und Spaltung des Jodats in Jodid und Sauerstoff abwechselnd aufeinanderfolgen.2. The method according to claim i, characterized in that it is carried out as part of a cycle in which Alternating formation of iodate from iodide and splitting of iodate into iodide and oxygen successive.
DEI32520D 1927-10-29 1927-10-29 Production of alkali iodine data Expired DE468213C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI32520D DE468213C (en) 1927-10-29 1927-10-29 Production of alkali iodine data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI32520D DE468213C (en) 1927-10-29 1927-10-29 Production of alkali iodine data

Publications (1)

Publication Number Publication Date
DE468213C true DE468213C (en) 1928-11-08

Family

ID=7188161

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI32520D Expired DE468213C (en) 1927-10-29 1927-10-29 Production of alkali iodine data

Country Status (1)

Country Link
DE (1) DE468213C (en)

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