ES411212A1 - Un metodo para separar bario de una sal de estroncio solu- ble en agua contaminada con una pequena proporcion de bario. - Google Patents

Un metodo para separar bario de una sal de estroncio solu- ble en agua contaminada con una pequena proporcion de bario.

Info

Publication number
ES411212A1
ES411212A1 ES411212A ES411212A ES411212A1 ES 411212 A1 ES411212 A1 ES 411212A1 ES 411212 A ES411212 A ES 411212A ES 411212 A ES411212 A ES 411212A ES 411212 A1 ES411212 A1 ES 411212A1
Authority
ES
Spain
Prior art keywords
chromate
pref
pptn
strontium salts
removing barium
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
ES411212A
Other languages
English (en)
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.)
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson Ltd
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 Albright and Wilson Ltd filed Critical Albright and Wilson Ltd
Publication of ES411212A1 publication Critical patent/ES411212A1/es
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
    • C01F11/36—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/14—Chromates; Bichromates

Abstract

Un método para separar bario de una sal de estroncio soluble en agua contaminada con una pequeña proporción de bario por precipitación con cromato, caracterizado porque se forma una solución acuosa de la sal de estroncio que contiene al menos 7% en peso de ión estroncio, por ejemplo en forma de cloruro de estroncio o nitrato de estroncio, preferiblemente 25 a 47% en peso de nitrato de estroncio a un pH menor de 4 y a una temperatura entre 250ºC y 120ºC, un cromato soluble en agua tal como un cromato de metal alcalino de amonio es añadido a la solución en una cantidad mayor que la estequiométrica basada en el bario, pero menor que la estequiométrica basada en el estroncio, por ejemplo en un exceso sobre la cantidad estquiométrica de desde 10% hasta 400% basado en el bario, el pH es ajustado a un valor entre 5 y 8 , por ejemplo de 6,5 a 7,5 preferiblemente por adición de amoníaco acuoso y se separa desde la solución cromato de bario precipitado.
ES411212A 1972-02-15 1973-02-02 Un metodo para separar bario de una sal de estroncio solu- ble en agua contaminada con una pequena proporcion de bario. Expired ES411212A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB697972 1972-02-15

Publications (1)

Publication Number Publication Date
ES411212A1 true ES411212A1 (es) 1975-12-01

Family

ID=9824348

Family Applications (1)

Application Number Title Priority Date Filing Date
ES411212A Expired ES411212A1 (es) 1972-02-15 1973-02-02 Un metodo para separar bario de una sal de estroncio solu- ble en agua contaminada con una pequena proporcion de bario.

Country Status (2)

Country Link
DE (1) DE2307253A1 (es)
ES (1) ES411212A1 (es)

Also Published As

Publication number Publication date
DE2307253A1 (de) 1973-08-23

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