ES2167998T3 - Procedimiento para la obtencion o recuperacion de acido fluorhidrico y acido nitrico. - Google Patents

Procedimiento para la obtencion o recuperacion de acido fluorhidrico y acido nitrico.

Info

Publication number
ES2167998T3
ES2167998T3 ES99890165T ES99890165T ES2167998T3 ES 2167998 T3 ES2167998 T3 ES 2167998T3 ES 99890165 T ES99890165 T ES 99890165T ES 99890165 T ES99890165 T ES 99890165T ES 2167998 T3 ES2167998 T3 ES 2167998T3
Authority
ES
Spain
Prior art keywords
acid
metal
recovery
fluorhydic
procedure
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 - Lifetime
Application number
ES99890165T
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.)
EUROX EISENOXYDPRODUKTIONS und
Original Assignee
EUROX EISENOXYDPRODUKTIONS und
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 EUROX EISENOXYDPRODUKTIONS und filed Critical EUROX EISENOXYDPRODUKTIONS und
Application granted granted Critical
Publication of ES2167998T3 publication Critical patent/ES2167998T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • 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
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • C01B7/195—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Procedimiento para la obtención o recuperación de ácido fluorhídrico y ácido nítrico de soluciones que contienen metales, ácido fluorhídrico, ácido nítrico y/o fluoruros y, dado el caso, nitratos, que incluye los pasos concentración de la solución que contiene metales, formación y precipitación de un precipitado a partir de la solución concentrada separación del precipitado de la solución sobrenadante y lavado del precipitado alimentación del precipitado a una pirohidrólisis, teniendo lugar una reacción de fluoruros metálicos en óxidos metálicos, caracterizado porque al precipitado separado de la solución sobrenadante se le añaden óxidos metálicos antes o durante la alimentación a la pirohidrólisis.
ES99890165T 1998-09-03 1999-05-25 Procedimiento para la obtencion o recuperacion de acido fluorhidrico y acido nitrico. Expired - Lifetime ES2167998T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0149698A AT406168B (de) 1998-09-03 1998-09-03 Verfahren zur gewinnung bzw. rückgewinnung von flusssäure und salpetersäure

Publications (1)

Publication Number Publication Date
ES2167998T3 true ES2167998T3 (es) 2002-05-16

Family

ID=3515116

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99890165T Expired - Lifetime ES2167998T3 (es) 1998-09-03 1999-05-25 Procedimiento para la obtencion o recuperacion de acido fluorhidrico y acido nitrico.

Country Status (4)

Country Link
EP (1) EP0984078B1 (es)
AT (2) AT406168B (es)
DE (1) DE59900419D1 (es)
ES (1) ES2167998T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508774B1 (de) 2010-04-20 2011-04-15 Key Technologies Ind Gmbh Verfahren zur gewinnung bzw. rückgewinnung von salpetersäure und flusssäure aus lösungen von edelstahlbeizanlagen
CN107459021B (zh) * 2017-07-25 2023-11-24 四川思达能环保科技有限公司 分解硝酸盐溶液的设备和方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789082A (fr) * 1971-11-11 1973-01-15 Oesterr Alpine Montan Procede pour rendre non nocifs les sels de fer formes dans les bains dedecapage
AT335251B (de) * 1975-03-10 1977-03-10 Ruthner Industrieanlagen Ag Verfahren und vorrichtung zur wiedergewinnung von salpetersaure und flusssaure aus losungen
AT376632B (de) * 1979-06-15 1984-12-10 Ruthner Industrieanlagen Ag Verfahren und anlage zur gewinnung bzw. rueckgewinnung von flussaeure
AT374508B (de) * 1982-07-01 1984-05-10 Ruthner Industrieanlagen Ag Verfahren zur aufarbeitung verbrauchter beizoder aetzloesungen auf der basis von salpeter-flussaeure
AT395312B (de) * 1987-06-16 1992-11-25 Andritz Ag Maschf Verfahren zur gewinnung bzw. rueckgewinnung von saeure aus metallhaltigen loesungen dieser saeure
DE4315551C2 (de) * 1993-05-10 2003-01-16 Gewerk Keramchemie Verfahren zur Regenerierung von verbrauchten, Metallsalze und/oder Metalloxide enthaltenden Lösungen, insbesondere Milchsäuren
DE4402028C2 (de) * 1994-01-25 1996-11-28 Gewerk Keramchemie Verfahren zur Regenerierung einer verbrauchten, Flußsäure enthaltenden Prozeßlösung
DE4417104A1 (de) * 1994-05-16 1995-11-30 Starck H C Gmbh Co Kg Verfahren zur Herstellung von Fluorwasserstoff und/oder Metalloxiden sowie entsprechend erhaltenes Nioboxid und Tantaloxid
AT412001B (de) * 1995-03-07 2004-08-26 Edv Systemanalyse Und Systemde Verfahren zur gewinnung bzw. rückgewinnung von säuren
AT403698B (de) * 1995-11-27 1998-04-27 Andritz Patentverwaltung Verfahren zur gewinnung bzw. rückgewinnung von säuren aus metallhaltigen lösungen dieser säuren

Also Published As

Publication number Publication date
EP0984078A1 (de) 2000-03-08
DE59900419D1 (de) 2001-12-20
EP0984078B1 (de) 2001-11-14
ATE208839T1 (de) 2001-11-15
ATA149698A (de) 1999-07-15
AT406168B (de) 2000-03-27

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