DE526796C - Manufacture of barium hydroxide - Google Patents

Manufacture of barium hydroxide

Info

Publication number
DE526796C
DE526796C DE1930526796D DE526796DD DE526796C DE 526796 C DE526796 C DE 526796C DE 1930526796 D DE1930526796 D DE 1930526796D DE 526796D D DE526796D D DE 526796DD DE 526796 C DE526796 C DE 526796C
Authority
DE
Germany
Prior art keywords
barium
barium hydroxide
manufacture
oxidation
dissolved
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
DE1930526796D
Other languages
German (de)
Inventor
Dr Oswin Nitzschke
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
Application granted granted Critical
Publication of DE526796C publication Critical patent/DE526796C/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Durch das Patent 519 891 ist ein Verfahren geschützt, nach dem Bariumhydroxyd aus Bariumsulfid in der Weise hergestellt wird, daß Bariumsulfidlösungen bei Temperaturen von E mehr als 500C mit Luft behandelt werden. Es ist auch angegeben, daß bei Anwesenheit von Polysulfidschwefel in der Lauge die Oxydation rascher und bei tieferen Temperaturen stattfindet, z. B. bei 50 bis 60°, als bei polysulfidfreien Laugen, die vorteilhafter bei höherer Temperatur oxydiert werden.By the Patent 519,891 a method is protected, is prepared by the barium from barium sulfide in such a manner that Bariumsulfidlösungen are treated at temperatures of more than E 50 0 C with air. It is also stated that when polysulphide sulfur is present in the liquor, the oxidation takes place more rapidly and at lower temperatures, e.g. B. at 50 to 60 °, than with polysulfide-free alkalis, which are advantageously oxidized at a higher temperature.

Es wurde nun weiter gefunden, daß bei Gegenwart von Polysulfiden in der Lauge die Oxydation auch noch bei Temperaturen unter 50 ° ausgeführt werden kann. Dieses Ergebnis ist überraschend, da beim Behandeln polysulfidfreier Laugen mit Luft bei niedrigen Temperaturen vorwiegend Bariumthiosulfat entsteht. Bei Anwesenheit von Polysulfid oder gelöstemIt has now been found that the presence of polysulphides in the lye leads to oxidation can also be carried out at temperatures below 50 °. This result is Surprising because when treating polysulphide-free alkalis with air at low temperatures mainly barium thiosulphate is produced. In the presence of polysulphide or dissolved

ao Schwefel bildet sich dagegen kein Thiosulfat. Das Bariumsulfid wird zu weit mehr als 50% in Bariumhydroxyd übergeführt. Die Oxydationsdauer erhöht sich naturgemäß unter sonst gleichen Bedingungen mit sinkender Temperatur, doch gelingt es, sie durch Verwendung sauerstoffreicher Gase an Stelle von Luft oder durch Anwendung von erhöhtem Druck zu verkürzen.In contrast to sulfur, no thiosulfate is formed. The barium sulfide is far more than 50% in Barium hydroxide transferred. The duration of oxidation naturally increases with other factors same conditions with falling temperature, but it is possible to use them more oxygen-rich To shorten gases instead of air or by applying increased pressure.

Beispiel 1example 1

Eine Lauge, die außer 100 g BaS/Ltr. noch 123 g BaS3/Ltr. enthält, wird bei 35 bis 40 * 3x/2 Stunde mit Luft behandelt. Nach dieser Zeit enthält sie 69 g Ba(OH) 2/Ltr. Es sind also 68,5% des Bariumsulfids zu Bariumhydroxyd oxydiert worden.A lye that, in addition to 100 g BaS / ltr. 123 g BaS 3 / ltr. is treated with air at 35 to 40 * 3 x / 2 hours. After this time it contains 69 g Ba (OH) 2 / liter. So 68.5% of the barium sulfide has been oxidized to barium hydroxide.

Beispiel 2Example 2

Von dem nach dem Abscheiden des Bariumhydroxyds zufolge Beispiel 1 erhaltenen Filtrat wird ι Liter mit 1Z2 Liter frischer Schwefelbariumlauge von 300 g BaS/Ltr. versetzt. In diese Mischung wird bei 20 bis 25 ° Sauerstoff eingeleitet. Nach 20 Minuten sind 72% des zugesetzten Bariumsulfids in Bariumhydroxyd übergeführt.From the filtrate obtained after the barium hydroxide has been deposited according to Example 1, 1 liter is mixed with 1 Z 2 liters of fresh barium sulphide solution of 300 g BaS / ltr. offset. Oxygen is passed into this mixture at 20 to 25 °. After 20 minutes, 72% of the barium sulfide added has been converted into barium hydroxide.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von Bariumhydroxyd unter gleichzeitiger Gewinnung von Bariumpolysulfiden durch partielle Oxydation von Bariumsulfid, dadurch gekennzeichnet, daß gelöstes Bariumsulfid in Gegenwart von Polysulfid oder gelöstem Schwefel bei Temperaturen unter 50° der Oxydation unterworfen wird.Process for the production of barium hydroxide with simultaneous recovery of barium polysulphides by partial oxidation of barium sulphide, characterized in that dissolved barium sulfide in the presence of polysulfide or dissolved sulfur at temperatures below 50 ° of oxidation is subjected. *; Von dem Patentsucher ist als der Erfinder angegeben worden: *; The patent seeker stated as the inventor: Dr. Osjpin Nit^schke in Leverkusen.Dr. Osjpin Nit ^ schke in Leverkusen.
DE1930526796D 1929-10-21 1930-02-09 Manufacture of barium hydroxide Expired DE526796C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE365198X 1929-10-21

Publications (1)

Publication Number Publication Date
DE526796C true DE526796C (en) 1931-06-10

Family

ID=6317557

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930526796D Expired DE526796C (en) 1929-10-21 1930-02-09 Manufacture of barium hydroxide

Country Status (3)

Country Link
DE (1) DE526796C (en)
FR (1) FR704151A (en)
GB (2) GB365198A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS149670B2 (en) * 1968-09-11 1973-07-25 Kemeny Giulio Method of barium hydroxide flow production and device for application of this method
US3652217A (en) * 1968-09-11 1972-03-28 Kali Chemical Ag Method for the production of barium hydroxide
CN110817920B (en) * 2019-12-27 2022-05-13 深州嘉信化工有限责任公司 Method for producing barium hydroxide and co-producing barium sulfate and sodium thiosulfate from barium sulfide

Also Published As

Publication number Publication date
GB365198A (en) 1932-01-21
FR704151A (en) 1931-05-15
GB365651A (en) 1932-01-25

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