ES472721A1 - Procedimiento para obtener a escala industrial oxidos meta- licos a partir de sustancias de partida impurificadas - Google Patents

Procedimiento para obtener a escala industrial oxidos meta- licos a partir de sustancias de partida impurificadas

Info

Publication number
ES472721A1
ES472721A1 ES472721A ES472721A ES472721A1 ES 472721 A1 ES472721 A1 ES 472721A1 ES 472721 A ES472721 A ES 472721A ES 472721 A ES472721 A ES 472721A ES 472721 A1 ES472721 A1 ES 472721A1
Authority
ES
Spain
Prior art keywords
brine
waste gas
recovery
metal oxides
resprayed
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
ES472721A
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.)
Veitscher Magnesitwerke AG
Original Assignee
Veitscher Magnesitwerke 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 Veitscher Magnesitwerke AG filed Critical Veitscher Magnesitwerke AG
Publication of ES472721A1 publication Critical patent/ES472721A1/es
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
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/18—Methods for preparing oxides or hydroxides in general by thermal decomposition of compounds, e.g. of salts or hydroxides
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/02—Magnesia
    • C01F5/06—Magnesia by thermal decomposition of magnesium compounds
    • C01F5/10—Magnesia by thermal decomposition of magnesium compounds by thermal decomposition of magnesium chloride with water vapour

Landscapes

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

Abstract

Procedimiento para obtener a escala industrial óxidos metálicos a partir de sustancias de partida impurificadas, especialmente de óxido de magnesio, en el que estas sustancias de partida son disueltas primeramente en ácido clorhídrico y a partir de la salmuera de cloruro metálico obtenida de esta manera después de un tratamiento previo de la misma, en el curso del cual se efectúa una concentración de la salmuera, mediante descomposición térmica en un horno se forma óxido metálico puro y cloruro de hidrógeno, llevándose los gases de escape del horno de descomposición, que contienen el cloruro de hidrógeno a contacto íntimo con la salmuera que ha de concentrarse para la concentración de la salmuera, que se caracteriza porque la salmuera que ha de concentrarse se rocía en el gas de escape circulante, recogiéndose las gotitas de salmuera, después de haber pasado por la corriente de gas de escape, y por lo menos una parte de la salmuera recogida de esta manera se rocía nuevamente una o varias veces en el gas de escape circulante, se recoge después de pasar por la corriente de gas de escape y se introduce en la salida común de la salmuera concentrada, manteniéndose el valor de pH de la salmuera concentrada que sale en un margen elegido previamente mediante regulación de la cantidad de la salmuera sometida al rociado repetido en la corriente de gas de escape.
ES472721A 1977-08-22 1978-08-21 Procedimiento para obtener a escala industrial oxidos meta- licos a partir de sustancias de partida impurificadas Expired ES472721A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT605877A AT352081B (de) 1977-08-22 1977-08-22 Verfahren zur grosstechnischen gewinnung von metalloxiden, insbesondere von magnesiumoxid, und vorrichtung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
ES472721A1 true ES472721A1 (es) 1979-10-16

Family

ID=3582443

Family Applications (1)

Application Number Title Priority Date Filing Date
ES472721A Expired ES472721A1 (es) 1977-08-22 1978-08-21 Procedimiento para obtener a escala industrial oxidos meta- licos a partir de sustancias de partida impurificadas

Country Status (10)

Country Link
AT (1) AT352081B (es)
BR (1) BR7805368A (es)
CA (1) CA1115028A (es)
DE (1) DE2834560A1 (es)
ES (1) ES472721A1 (es)
FR (1) FR2401098A1 (es)
GB (1) GB2006175B (es)
GR (1) GR65340B (es)
IL (1) IL55334A (es)
IT (1) IT1115567B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392464B (de) * 1988-08-10 1991-04-10 Veitscher Magnesitwerke Ag Magnesiumoxid in form eines feinen pulvers und seine verwendung
EP2821368A1 (en) * 2013-07-03 2015-01-07 PURAC Biochem BV Method for processing magnesium chloride solutions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE721358C (de) * 1935-08-14 1942-06-02 Metallgesellschaft Ag Gewinnung von Magnesiumoxyd aus wasserhaltigen Magnesiumchloridloesungen oder -schmelzen
FR1299386A (fr) * 1961-09-05 1962-07-20 Zentrale Forschungsstelle Fuer Procédé de production d'oxyde de magnésium à partir de solutions ou de sels contenant du chlorure de magnésium
DE2608567A1 (de) * 1975-03-19 1976-09-30 Oesterr Amerikan Magnesit Verfahren zum konzentrieren von waesserigen loesungen mit einem gehalt an magnesiumchlorid
AT347403B (de) * 1975-11-20 1978-12-27 Veitscher Magnesitwerke Ag Verfahren zur grosstechnischen gewinnung von magnesiumoxid hoher reinheit

Also Published As

Publication number Publication date
GR65340B (en) 1980-08-18
IT7868947A0 (it) 1978-08-21
ATA605877A (de) 1979-02-15
FR2401098A1 (fr) 1979-03-23
FR2401098B1 (es) 1983-01-28
CA1115028A (en) 1981-12-29
DE2834560A1 (de) 1979-03-01
GB2006175A (en) 1979-05-02
AT352081B (de) 1979-08-27
GB2006175B (en) 1982-04-21
IL55334A (en) 1981-10-30
IT1115567B (it) 1986-02-03
IL55334A0 (en) 1978-10-31
BR7805368A (pt) 1979-05-02

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000601