ES2054203T3 - Procedimiento para la regeneracion electroquimica de acido cromosulfurico. - Google Patents

Procedimiento para la regeneracion electroquimica de acido cromosulfurico.

Info

Publication number
ES2054203T3
ES2054203T3 ES90123633T ES90123633T ES2054203T3 ES 2054203 T3 ES2054203 T3 ES 2054203T3 ES 90123633 T ES90123633 T ES 90123633T ES 90123633 T ES90123633 T ES 90123633T ES 2054203 T3 ES2054203 T3 ES 2054203T3
Authority
ES
Spain
Prior art keywords
procedure
chromosulfuric acid
electrochemical regeneration
chromosulfuric
acid
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
ES90123633T
Other languages
English (en)
Inventor
Hans Dr Herbst
Jurgen Dr Stenzel
Siegfried Dr Benninger
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2054203T3 publication Critical patent/ES2054203T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/16—Regeneration of process solutions
    • C25D21/18—Regeneration of process solutions of electrolytes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

EL ACIDO CROMOSULFURICO, QUE SE UTILIZA COMO PRODUCTO DE OXIDACION EN MUCHAS REACCIONES ORGANICAS, PUEDE RECUPERARSE ELECTROQUIMICAMENTE SI SE UTILIZA UNA CELULA DE ELECTROLISIS, CONSTITUIDA POR DOS SEMIPARTES (1) (2) EN FORMA DE BAÑERA, CON UN TABIQUE DIVISOR (7), HIDRAULICAMENTE ESTANCO PERO QUE PUEDE SER ATRAVESADO POR LA CORRIENTE ELECTRICA. DE ESTE MODO PUEDE AISLARSE TAMBIEN EL HIDROGENO QUE SE ORIGINA EN EL CATODO PARA SER APROVECHADO.
ES90123633T 1989-12-12 1990-12-08 Procedimiento para la regeneracion electroquimica de acido cromosulfurico. Expired - Lifetime ES2054203T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3940978A DE3940978A1 (de) 1989-12-12 1989-12-12 Verfahren zur elektrochemischen regenerierung von chromschwefelsaeure

Publications (1)

Publication Number Publication Date
ES2054203T3 true ES2054203T3 (es) 1994-08-01

Family

ID=6395298

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90123633T Expired - Lifetime ES2054203T3 (es) 1989-12-12 1990-12-08 Procedimiento para la regeneracion electroquimica de acido cromosulfurico.

Country Status (8)

Country Link
US (1) US5045162A (es)
EP (1) EP0436146B1 (es)
JP (1) JPH05238736A (es)
DE (2) DE3940978A1 (es)
DK (1) DK0436146T3 (es)
ES (1) ES2054203T3 (es)
IE (1) IE65467B1 (es)
PT (1) PT96157A (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315411C2 (de) * 1993-05-10 1995-04-27 Lpw Anlagen Gmbh Verfahren zur Regenerierung von verbrauchten Chromsäurelösungen
DE4419683C2 (de) * 1994-06-06 2000-05-04 Eilenburger Elektrolyse & Umwelttechnik Gmbh Bipolare Filterpressenzelle für anodische Oxidationen an Platin
DE19519177C2 (de) * 1995-05-24 1999-05-12 Warnecke Hans Joachim Prof Dr Verfahren und Vorrichtung zur Abfall-CSB-Wert-Verminderung
AT409764B (de) * 1998-03-06 2002-11-25 Treibacher Ind Ag Verfahren zur oxidation von vanadium
NZ331053A (en) * 1998-07-21 2002-12-20 Osmose New Zealand Process for electrochemical generation of higher oxidate state values from lower oxidation state values above zero of transition metal(s) [eg;
FR2791662B1 (fr) * 1999-04-01 2001-06-22 Conservatoire Nat Arts Procede de traitement electrochimique d'effluents, notamment d'effluents de tannerie, comprenant des sels de chrome
US6468414B1 (en) 2001-02-16 2002-10-22 Hydro-Quebec Method of purification of a redox mediator before electrolytic regeneration thereof
GB2399349A (en) * 2003-03-13 2004-09-15 Kurion Technologies Ltd Regeneration of chromic acid etching and pickling baths
JP3836833B2 (ja) * 2003-11-11 2006-10-25 山口 嘉春 水素と酸素の混合ガス発生装置およびその電解槽
DE102004023161A1 (de) * 2004-05-07 2005-11-24 Eilenburger Elektrolyse- Und Umwelttechnik Gmbh Elektrolysezelle mit Mehrlagen-Streckmetall-Kathoden
CN108103521B (zh) * 2017-12-22 2019-10-15 四川省银河化学股份有限公司 一种提高电解法制备铬酸酐品质的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761369A (en) * 1971-10-18 1973-09-25 Electrodies Inc Process for the electrolytic reclamation of spent etching fluids
DE2310622A1 (de) * 1973-03-02 1974-09-12 Basf Ag Diaphragmenzelle fuer die herstellung von schwefelsauren chromsaeureloesungen
US4006067A (en) * 1973-03-05 1977-02-01 Gussack Mark C Oxidation-reduction process
FR2354399A1 (fr) * 1976-06-11 1978-01-06 Sarel Compartiment cathodique pour la regeneration electrolytique de solutions sulfo-chromiques et/ou phospho-chromiques
DE3501261A1 (de) * 1985-01-16 1986-07-17 Uhde Gmbh, 4600 Dortmund Elektrolyseapparat
AT382894B (de) * 1985-02-27 1987-04-27 Elin Union Ag Verfahren zur elektrochemischen oxidation von schwefelsauren chrom-iii-loesungen zu chrom-vil¯sungen

Also Published As

Publication number Publication date
EP0436146B1 (de) 1994-04-20
IE904464A1 (en) 1991-06-19
IE65467B1 (en) 1995-11-01
DE3940978A1 (de) 1991-06-13
PT96157A (pt) 1991-09-30
US5045162A (en) 1991-09-03
DK0436146T3 (da) 1994-08-08
EP0436146A1 (de) 1991-07-10
DE59005450D1 (de) 1994-05-26
JPH05238736A (ja) 1993-09-17

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