ES2077152T3 - Procedimiento para el tratamiento de disoluciones de decapado usadas que contienen sales metalicas y acidos. - Google Patents

Procedimiento para el tratamiento de disoluciones de decapado usadas que contienen sales metalicas y acidos.

Info

Publication number
ES2077152T3
ES2077152T3 ES91201480T ES91201480T ES2077152T3 ES 2077152 T3 ES2077152 T3 ES 2077152T3 ES 91201480 T ES91201480 T ES 91201480T ES 91201480 T ES91201480 T ES 91201480T ES 2077152 T3 ES2077152 T3 ES 2077152T3
Authority
ES
Spain
Prior art keywords
spent liquor
acids
procedure
treatment
metal salts
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
ES91201480T
Other languages
English (en)
Inventor
Volker Brucken
Albert Dr Kaune
Manfred Dr Potzschke
Ernst Dr Wallis
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Application granted granted Critical
Publication of ES2077152T3 publication Critical patent/ES2077152T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

LOS DECAPANTES USADOS, CON CONTENIDOS DE SALES MINERALES Y DE ACIDOS, PRODUCIDOS EN EL TRATAMIENTO DE SUPERFICIE DE LOS PRODUCTOS LAMINADOS DE ACERO, Y QUE CONTIENEN ACIDO NITRICO Y ACIDO FLUORHIDRICO, ASI COMO SALES DE NIQUEL, DE CROMO Y DE HIERRO, SE SOMETEN A UNA DIALISIS ACIDA Y A UNA ELECTROLISIS DE MEMBRANA. PARA CONSEGUIR UNA ELEVADA TASA DE REGENERACION DE LOS ACIDOS LIBRES Y LA RECUPERACION DE LOS METALES BAJO UNA FORMA QUE PERMITA SU UTILIZACION DIRECTA EN EL PROCESO DE FUNDICION, DESPUES DE LA RECUPERACION DEL ACIDO NITRICO Y FLUORHIDRICO LIBRES EN LA DIALISIS ACIDA, EL LIQUIDO EMPOBRECIDO DE ACIDOS LIBRES, PROCEDENTE DE LA DIALISIS ACIDA, SE SOMETE A UNA ELECTROLISIS DE MEMBRANA PARA LA RECUPERACION DE LOS METALES, Y EL LIQUIDO QUE REBOSA DE LA DIALISIS ACIDA, ENRIQUECIDO EN ACIDOS LIBRES, Y EL QUE DESAGUA DE LA ELECTROLISIS DE MEMBRANA, EMPOBRECIDO DE METALES, SE SOMETEN A UNA EVAPORACION.
ES91201480T 1990-06-28 1991-06-14 Procedimiento para el tratamiento de disoluciones de decapado usadas que contienen sales metalicas y acidos. Expired - Lifetime ES2077152T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4020560A DE4020560A1 (de) 1990-06-28 1990-06-28 Verfahren zur aufbereitung von metallsalze und saeuren enthaltender altbeize

Publications (1)

Publication Number Publication Date
ES2077152T3 true ES2077152T3 (es) 1995-11-16

Family

ID=6409238

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91201480T Expired - Lifetime ES2077152T3 (es) 1990-06-28 1991-06-14 Procedimiento para el tratamiento de disoluciones de decapado usadas que contienen sales metalicas y acidos.

Country Status (7)

Country Link
EP (1) EP0463671B1 (es)
JP (1) JPH04231487A (es)
AT (1) ATE126278T1 (es)
DE (2) DE4020560A1 (es)
DK (1) DK0463671T3 (es)
ES (1) ES2077152T3 (es)
GR (1) GR3017097T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0843025A1 (de) * 1996-11-15 1998-05-20 Keramchemie GmbH Verfahren zur Regenerierung einer verbrauchten Beizlösung
KR100395114B1 (ko) * 1999-12-23 2003-08-21 주식회사 포스코 산세액 및 황산제일철 무기응집제로의 황산폐액의재사용방법
DE10231308C5 (de) * 2002-07-10 2009-10-15 Cmi Uvk Gmbh Verfahren und Vorrichtung zum Recyceln von Edelstahl-Beizbädern
DE10241733B4 (de) * 2002-09-09 2006-03-30 Chmiel, Horst, Prof. Dr.-Ing. Verfahren zur Rückgewinnung von Wertstoffen aus dem nachgeschalteten Spülbad eines Phosphatierprozesses
DE102012111105A1 (de) * 2012-11-19 2014-05-22 Uwe Gräßel Verfahren zur Rückgewinnung von säurehaltigen Beizlösungen
DE102013105177A1 (de) 2013-05-21 2014-11-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Gewinnung metallischer Anteile sowie von metallabgereichertem Material aus metallhaltigen Materialien
CN108726777A (zh) * 2018-06-12 2018-11-02 苏州诚华工程管理咨询有限公司 含铬废液处理工艺

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677279A5 (es) * 1988-11-29 1991-04-30 Mettler Toledo Ag

Also Published As

Publication number Publication date
DE59106198D1 (de) 1995-09-14
DK0463671T3 (da) 1995-09-18
EP0463671A1 (de) 1992-01-02
DE4020560A1 (de) 1992-01-02
GR3017097T3 (en) 1995-11-30
EP0463671B1 (de) 1995-08-09
ATE126278T1 (de) 1995-08-15
JPH04231487A (ja) 1992-08-20

Similar Documents

Publication Publication Date Title
US3975246A (en) Method of disinfecting water
US5154774A (en) Process for acid pickling of stainless steel products
ES466797A1 (es) Procedimiento para la produccion de hipoclorito de sodio
ES2077152T3 (es) Procedimiento para el tratamiento de disoluciones de decapado usadas que contienen sales metalicas y acidos.
JP2002525429A (ja) 無硝酸溶液を用いる電解酸洗い方法
US3933605A (en) Non-polluting pickling method
IT1282979B1 (it) Procedimento per il decapaggio dell'acciaio nel quale la ossidazione dello ione ferroso formatosi viene effettuata per via elettrochimica
JPS57177980A (en) Brine supply of membrane type electrolytic cell
FR2431554A1 (fr) Procede pour le decapage electrolytique de bandes laf d'acier inoxydable
US2565189A (en) Electropolishing steel
GB1196395A (en) Process for Electrochemically Cleaning and Brightening Copper, Alloy and Brass Strip
GB1082409A (en) An electrolytic descaling solution
EP0396984A1 (en) Regeneration of spent ferric chloride etchants
US4830717A (en) Process for electroreduction of aliphatic nitro derivatives
ATE50004T1 (de) Verfahren zur herstellung eines kalt gewalzten stahlbandes, das hochempfindlich ist fuer eine umwandlungsbehandlung.
JP2966180B2 (ja) ステンレス焼鈍鋼帯の電解デスケーリング方法
GB1337457A (en) Process for the preparation of saligenol by electrochemical reduction
KR950014377A (ko) 마르텐사이트계 스테인레스강대의 스케일 제거방법
JPS56156799A (en) Descaling method for titanium sheet
ES2002301A6 (es) Procedimiento para la oxidacion electroquimica de una alquilpiridina
JPS5521519A (en) Glaubersigma salt electrolyzer
GB1521966A (en) Etching plating and enamelling metals
DE671218C (de) Verfahren zum elektrolytischen Beizen
DE3870754D1 (de) Verfahren zur reinigung eines dipeptid-esters.
Sakurai et al. Development of New Pickling Process for Hot-Rolled Stainless Steel Strip. I. A Study of New Pickling Acids

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 463671

Country of ref document: ES