DE415897C - Process for the production of barium hydroxide from raw sulfur barium - Google Patents

Process for the production of barium hydroxide from raw sulfur barium

Info

Publication number
DE415897C
DE415897C DEC33729D DEC0033729D DE415897C DE 415897 C DE415897 C DE 415897C DE C33729 D DEC33729 D DE C33729D DE C0033729 D DEC0033729 D DE C0033729D DE 415897 C DE415897 C DE 415897C
Authority
DE
Germany
Prior art keywords
barium
raw sulfur
production
hydroxide
barium hydroxide
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
DEC33729D
Other languages
German (de)
Inventor
Dr Eduard Carl Marburg
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.)
CHEM FAB GRIESHEIM ELEKTRON FA
Original Assignee
CHEM FAB GRIESHEIM ELEKTRON FA
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 CHEM FAB GRIESHEIM ELEKTRON FA filed Critical CHEM FAB GRIESHEIM ELEKTRON FA
Priority to DEC33729D priority Critical patent/DE415897C/en
Application granted granted Critical
Publication of DE415897C publication Critical patent/DE415897C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/02—Oxides or hydroxides
    • C01F11/10—Oxides or hydroxides from sulfides

Description

Verfahren zur Gewinnung von Bariumhydroxyd aus Rohschwefelbarium. Es ist bekannt, daß man Rohschwefelbarium, wie es durch Reduktion von Bariumsulfat mit Kohle gewonnen wird, durch Befeuchten mit Wasser hydratisieren und hierdurch in ein kristallinisches Gemisch von Ba (OH), +Ba (SH), überführen kann.Process for the production of barium hydroxide from raw sulfur barium. It is known that raw sulfur barium can be obtained by reducing barium sulfate is obtained with coal, hydrate by wetting it with water and thereby can convert into a crystalline mixture of Ba (OH), + Ba (SH).

Im Gegensatz zu bekannten Verfahren verfolgt das Verfahren gemäß vorliegender Erfindung den Weg, dieses Gemisch dadurch zu trennen, daß der Ba (SH)2-Anteil des Gemisches in Oxydationsprodukte übergeführt wird, wie Bariumthiosulfat und Bariumpolysulfid (BaS.), die sich beim Behandeln des hydratisierten Ba S mit Luft unter Selbsterwärmung mit großer Leichtigkeit bilden. Zweckmäßig wird der für die Oxydation benötigte Luftstrom zunächst durch eine Lösung oder Aufschwemmung eines kleinen Anteils des Schwefelbariums in Wasser geführt, um ihn von Kohlensäure zu befreien und die Bildung von Bariumkarbonat im Reaktionsprodukt zu vermeiden. Als wesentlich ist erkannt worden, diese Oxydation so lange durchzuführen, bis eine Durchschnittsprobe der ständig in Durchmischung gehaltenen Reaktionsmasse keine Zunahme der Alkalität mehr erkennen l.äßt. In der Reaktionsmasse finden sich dann Bariumthiosulfat, welches unlöslich ist, und Ba S , welches im Gegensatz zu Ba (SH)2 nicht mehr imstande ist, mit dem Ätzbaryt zusammen zu kristallisieren. Durch Aufnahme des Reaktionsgemisches mit heißem Wasser oder Mutterlaugen, Filtrieren und Kaltrühren des Filtrates scheidet sich der Ätzbaryt in Form von Ba (OH)".8H.,0 kristallinisch aus, welcher durch Auswaschen frei von Schwefelverbindungen erhalten wird.In contrast to known methods, the method according to the present invention follows Invention the way to separate this mixture in that the Ba (SH) 2 portion of the Mixture is converted into oxidation products, such as barium thiosulphate and barium polysulphide (BaS.), Which result when the hydrated Ba S is treated with air with self-heating form with great ease. The one required for the oxidation is useful Air flow initially through a solution or suspension of a small portion of the Sulphurous bariums passed into water in order to de-carbonate and the formation to avoid barium carbonate in the reaction product. It is recognized as essential been to carry out this oxidation until an average sample of the Constantly kept in mixing reaction mass no more increase in alkalinity can be recognized. Barium thiosulfate, which is then found in the reaction mass is insoluble, and Ba S, which in contrast to Ba (SH) 2 is no longer able to to crystallize with the Ätzbaryt together. By absorbing the reaction mixture with hot water or mother liquors, filtering and cold stirring of the filtrate the etching baryta is crystalline in the form of Ba (OH) ". 8H., 0, which by washing out is obtained free of sulfur compounds.

Claims (1)

PATRNT-ANsPRUcH: Verfahren zur Gewinnung von Bariumhydroxyd aus Rohschwefelbarium, dadurch gekennzeichnet, daß man Rohschwefelbarium in hydratischer Form der Oxydation durch Luft so lange aussetzt, bis eine Probe der Reaktionsmasse keine Zunahme der Alkalität mehr erkennen läßt, worauf dann durch Behandeln mit heißem Wasser oder Mutterlaugen die Trennung in unlösliches Bariumthiosulfat und -Lösungen erfolgt, welche beim Erkalten Bariumhydroxyd ausscheiden.PATRNT CLAIM: Process for the extraction of barium hydroxide from raw sulfur barium, characterized in that raw sulfur barium is used in the hydrated form of oxidation exposed to air until a sample of the reaction mass does not increase Alkalinity can be recognized more, what then by treatment with hot water or Mother liquors are separated into insoluble barium thiosulphate and solutions, which excrete barium hydroxide when it cools.
DEC33729D 1923-07-07 1923-07-07 Process for the production of barium hydroxide from raw sulfur barium Expired DE415897C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC33729D DE415897C (en) 1923-07-07 1923-07-07 Process for the production of barium hydroxide from raw sulfur barium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC33729D DE415897C (en) 1923-07-07 1923-07-07 Process for the production of barium hydroxide from raw sulfur barium

Publications (1)

Publication Number Publication Date
DE415897C true DE415897C (en) 1925-07-03

Family

ID=7020981

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC33729D Expired DE415897C (en) 1923-07-07 1923-07-07 Process for the production of barium hydroxide from raw sulfur barium

Country Status (1)

Country Link
DE (1) DE415897C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060585A (en) * 1975-03-24 1977-11-29 Metallgesellschaft Aktiengesellschaft Process for producing barium hydroxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060585A (en) * 1975-03-24 1977-11-29 Metallgesellschaft Aktiengesellschaft Process for producing barium hydroxide

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