DE576018C - Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal - Google Patents

Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal

Info

Publication number
DE576018C
DE576018C DEC47055D DEC0047055D DE576018C DE 576018 C DE576018 C DE 576018C DE C47055 D DEC47055 D DE C47055D DE C0047055 D DEC0047055 D DE C0047055D DE 576018 C DE576018 C DE 576018C
Authority
DE
Germany
Prior art keywords
fluoride
beryllium
alkali metal
double
fluorosilicate
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
DEC47055D
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.)
FROGES ET CAMARGUE
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
Original Assignee
FROGES ET CAMARGUE
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
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
Priority claimed from DEC45803D external-priority patent/DE566030C/en
Priority claimed from DEC46769D external-priority patent/DE583684C/en
Priority to FR43052D priority Critical patent/FR43052E/en
Application filed by FROGES ET CAMARGUE, Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue filed Critical FROGES ET CAMARGUE
Priority to DEC47055D priority patent/DE576018C/en
Priority to CH166490D priority patent/CH166490A/en
Priority to GB35156/32A priority patent/GB389053A/en
Application granted granted Critical
Publication of DE576018C publication Critical patent/DE576018C/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
    • C01F3/00—Compounds of beryllium
    • C01F3/005—Fluorides or double fluorides of beryllium with alkali metals or ammonium; Preparation of beryllium compounds therefrom

Landscapes

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

Description

Herstellung von Berylliumfluorid aus einem Doppelfluorid des Berylliums und eines Alkalimetalls In der Patentschrift 566 o3o wird angegeben, daß man Berylliumfluorid aus einem Doppelfluorid des Berylliums und eines Alkalimetälls erhalten kann, wenn man dieses Salz in Lösung oder wä.ßriger Aufschwemmung mit Kieselflußsäure behandelt, z. B. nach der Gleichung 2 (BeF, . NaF) H, Si F,; = 2 BeF, --f- 2,HF + Na, SiF,;, (z) oder mit einem Gemisch von Kieselflußsäure und Kieselsäure, nach der Gleichung 6 (BAR, . NaF) + 2 H, SWF,; + SAO, = 6 BEF, -E- 3 Na, SW, -f- 2H,0. (2) Das in dem Doppelfluorid des Berylliums und eines Alkalimetalls enthaltene Alkalifluorid wird praktisch vollständig in Form von Alkalifluorosilicat entfernt.Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal. Patent 566303 states that beryllium fluoride can be obtained from a double fluoride of beryllium and an alkali metal, if this salt is treated in solution or aqueous suspension with silicofluoric acid, z. B. according to equation 2 (BeF,. NaF) H, Si F ,; = 2 BeF, --f- 2, HF + Na, SiF,;, (z) or with a mixture of hydrofluoric acid and silicic acid, according to the equation 6 (BAR,. NaF) + 2 H, SWF ,; + SAO, = 6 BEF, -E- 3 Na, SW, -f- 2H, 0. (2) That in the Double fluoride of beryllium and an alkali metal containing alkali fluoride is practically completely removed in the form of alkali fluorosilicate.

Es ist nun festgestellt worden, daß die Kieselflußsäure oder das Gemisch von Kieselflußsäure und Kieselsäure ersetzt werden kann entweder durch Berylliumfluorosilicat oder durch ein Salz der Kieselflußsäure, dessen Metall .ein. unlösliches Fluorid oder Doppelfluorid gibt. Die Entfernung des Alkalifluorids und die Gewinnung des Berylliumfluorids erfolgt durch eine Reaktion zwischen dem Doppelfluorid des Berylliums und eines Alkalimetalls mit dem Salz der Kieselflußsäure in wäßrigem Mittel. Bei Anwendung von Berylliumfluorosilicät ergibt sich folgende Reaktion: 2 (BeF, . NaF) --f- BeSiF, = 3BeF, -f- Na, SiF,; löslich löslich schwach löslich. Oder man kann z. B. Calciumfluorosilicat in Lösung oder in festem Zustand in eine Lösung oder wäßrige Aufschwemmung von Be F. # Na F einführen und erhält die Reaktion (BeF= - NaF) + CaSiF" -- 2 BeF" + Na" Si.F,, -f- CaF, liislich schwach unlöslich. löslich Das ganze Calcium scheidet sich als unlösliches Fluorid ab, und der größte Teil des Natriums schlägt sich als schwach lösliches Fluorosilicat nieder. Das in Lösung gebliebene Natriumfluorosilicat wird durch Einengen der Lösung von Berylliumfluorid entfernt, wie es in demHauptpatentbeschrieben ist: An Stelle von Calciumfluörosilicat kann man auch Magnesiumfluorosilicat oder irgendein anderes Fluorosilicat anwenden; dessen Metall ein unlösliches Fluorid gibt.It has now been found that hydrofluoric acid or the mixture of hydrofluoric acid and silicic acid can be replaced either by beryllium fluorosilicate or by a salt of hydrofluoric acid, the metal of which is. there are insoluble fluoride or double fluoride. The removal of the alkali fluoride and the recovery of the beryllium fluoride are carried out by a reaction between the double fluoride of beryllium and an alkali metal with the salt of hydrofluoric acid in an aqueous medium. Using beryllium fluorosilicate results in the following reaction: 2 (BeF,. NaF) --f- BeSiF, = 3BeF, -f- Na, SiF ,; soluble soluble weakly soluble. Or you can z. B. Introduce calcium fluorosilicate in solution or in the solid state in a solution or aqueous suspension of Be F. # Na F and get the reaction (BeF = - NaF) + CaSiF "- 2 BeF" + Na "Si.F ,, -f- CaF, soluble slightly insoluble. soluble All of the calcium precipitates as insoluble fluoride, and most of the sodium precipitates as slightly soluble fluorosilicate. The sodium fluorosilicate remaining in solution is removed by concentrating the solution of beryllium fluoride, as described in the main patent: Magnesium fluorosilicate or any other fluorosilicate can be used instead of calcium fluorosilicate; whose metal gives an insoluble fluoride.

Man kann auch Aluminiumfluorosilicat verwenden nach der Gleichung (6 rt n) BeF= # NaF + AL= (SiF,;) --_ (6 + n) BeF., -;- 3 Na, SiF" -j- A1^ Fs # nNaF löslich schwach unlöslich. löslich Das Berylliumfluorid bleibt mit etwas Natriumfluorosilicat in Lösung, und ein Gemisch von Natriumfluorosilicat und Kryolith schlägt sich nieder.Aluminum fluorosilicate can also be used according to the equation (6 rt n) BeF = # NaF + AL = (SiF ,;) --_ (6 + n) BeF., -; - 3 Na, SiF "-j- A1 ^ Fs # nNaF soluble slightly insoluble. soluble The beryllium fluoride remains in solution with some sodium fluorosilicate and a mixture of sodium fluorosilicate and cryolite precipitates.

Claims (1)

PATENTANSPRUCH: Verfahren zur Gewinnung von Beryllium* fluorid aus einem Doppelfluorid des Berylliums und eines Alkalimetalls nach Patent 566 03o, dadurch gekennzeichnet, daß die Kieselflußsäure oder das Gemisch von Kieselflußsäure und Kieselsäure durch Berylliumfluorosilicat oder ein Salz der Kieselflußsäure ersetzt werden, dessen Metall entweder ,ein unlösliches Fluorid oder mit Alkalifluorid 'ein unlösliches Doppelfluorid ergibt.PATENT CLAIM: Process for the extraction of beryllium * fluoride from a double fluoride of beryllium and an alkali metal according to patent 566 03o, characterized in that the hydrofluoric acid or the mixture of hydrofluoric acid and replaced silica with beryllium fluorosilicate or a salt of hydrofluoric acid whose metal is either 'an insoluble fluoride or with alkali fluoride' insoluble double fluoride results.
DEC47055D 1931-12-19 1932-10-21 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal Expired DE576018C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR43052D FR43052E (en) 1931-12-19 1932-10-18 Process for preparing glucinium fluoride from a double glucinium fluoride and an alkali metal
DEC47055D DE576018C (en) 1931-12-19 1932-10-21 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal
CH166490D CH166490A (en) 1931-12-19 1932-11-24 A process for preparing glucinium fluoride from a double glucinium fluoride and an alkali metal.
GB35156/32A GB389053A (en) 1931-12-19 1932-12-12 Process of preparation of beryllium fluoride from a double fluoride of beryllium and an alkali metal

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR742619T 1931-12-19
DEC45803D DE566030C (en) 1931-12-19 1931-12-22 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal
FR42883T 1932-08-02
DEC46769D DE583684C (en) 1931-12-19 1932-08-07 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal
FR43052T 1932-10-18
DEC47055D DE576018C (en) 1931-12-19 1932-10-21 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal

Publications (1)

Publication Number Publication Date
DE576018C true DE576018C (en) 1933-05-06

Family

ID=40823086

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC47055D Expired DE576018C (en) 1931-12-19 1932-10-21 Production of beryllium fluoride from a double fluoride of beryllium and an alkali metal

Country Status (4)

Country Link
CH (1) CH166490A (en)
DE (1) DE576018C (en)
FR (1) FR43052E (en)
GB (1) GB389053A (en)

Also Published As

Publication number Publication date
GB389053A (en) 1933-03-09
CH166490A (en) 1934-03-16
FR43052E (en) 1934-02-08

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