FR2732041B1 - Procede de regeneration d'electrolytes et en particulier de na2so4 provenant du decapage d'un acier inoxydable et en particulier de bandes d'acier inoxydable - Google Patents

Procede de regeneration d'electrolytes et en particulier de na2so4 provenant du decapage d'un acier inoxydable et en particulier de bandes d'acier inoxydable

Info

Publication number
FR2732041B1
FR2732041B1 FR9601854A FR9601854A FR2732041B1 FR 2732041 B1 FR2732041 B1 FR 2732041B1 FR 9601854 A FR9601854 A FR 9601854A FR 9601854 A FR9601854 A FR 9601854A FR 2732041 B1 FR2732041 B1 FR 2732041B1
Authority
FR
France
Prior art keywords
stainless steel
na2so4
stripping
regenerating electrolytes
steel strips
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
FR9601854A
Other languages
English (en)
Other versions
FR2732041A1 (fr
Inventor
Jovan Starcevic
Edgar Braun
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.)
Andritz Patentverwaltungs GmbH
Original Assignee
Andritz Patentverwaltungs GmbH
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 Andritz Patentverwaltungs GmbH filed Critical Andritz Patentverwaltungs GmbH
Publication of FR2732041A1 publication Critical patent/FR2732041A1/fr
Application granted granted Critical
Publication of FR2732041B1 publication Critical patent/FR2732041B1/fr
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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
    • C25F7/02—Regeneration of process liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
FR9601854A 1995-02-15 1996-02-15 Procede de regeneration d'electrolytes et en particulier de na2so4 provenant du decapage d'un acier inoxydable et en particulier de bandes d'acier inoxydable Expired - Lifetime FR2732041B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0026895A AT401183B (de) 1995-02-15 1995-02-15 Verfahren zur regeneration von elektrolyten, insbesondere na2so4 aus abbeizen von edelstahl, insbesondere edelstahlbändern

Publications (2)

Publication Number Publication Date
FR2732041A1 FR2732041A1 (fr) 1996-09-27
FR2732041B1 true FR2732041B1 (fr) 1998-06-05

Family

ID=3486028

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9601854A Expired - Lifetime FR2732041B1 (fr) 1995-02-15 1996-02-15 Procede de regeneration d'electrolytes et en particulier de na2so4 provenant du decapage d'un acier inoxydable et en particulier de bandes d'acier inoxydable

Country Status (10)

Country Link
US (1) US6506294B1 (fr)
KR (1) KR100209987B1 (fr)
CN (1) CN1061104C (fr)
AT (1) AT401183B (fr)
BR (1) BR9600726A (fr)
DE (1) DE19602304A1 (fr)
ES (1) ES2125795B1 (fr)
FI (1) FI960645A (fr)
FR (1) FR2732041B1 (fr)
TW (1) TW349076B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406486B (de) * 1998-12-22 2000-05-25 Andritz Patentverwaltung Verfahren zum beizen von edelstahl
IT1317896B1 (it) * 2000-08-10 2003-07-15 Ct Sviluppo Materiali Spa Metodo di decapaggio elettrolitico continuo di prodotti metallici concelle alimentate a corrente alternata.
CN103484888B (zh) * 2012-06-14 2015-11-04 兰州大学 一种不锈钢生产中含铬硫酸钠废液及硫酸酸洗废液的处理方法
AT517710B1 (de) * 2016-04-13 2017-04-15 Andritz Ag Maschf Verfahren zum elektrolytischen beizen von metallbändern
CN113215646A (zh) * 2021-05-11 2021-08-06 山西太钢工程技术有限公司 一种电解硫酸钠溶液循环利用智能控制系统
CN113637976B (zh) * 2021-08-20 2023-01-13 深圳天华机器设备有限公司 一种硫酸洗槽药水再生系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230260A (en) * 1975-09-03 1977-03-07 Hitachi Seiko Ltd Treatment process and treatment apparatus for electrolyte
AT387406B (de) * 1987-05-07 1989-01-25 Andritz Ag Maschf Verfahren zum elektrolytischen beizen von chromhaeltigem edelstahl
JPH0824910B2 (ja) * 1988-01-18 1996-03-13 川崎製鉄株式会社 金属含有廃液の処理装置
CN1043535A (zh) * 1988-12-24 1990-07-04 由正明 硫酸酸洗废液再生的工艺方法
CN1030534C (zh) * 1992-10-14 1995-12-20 烟台大学 硫酸酸洗废液循环处理方法

Also Published As

Publication number Publication date
KR100209987B1 (ko) 1999-07-15
FR2732041A1 (fr) 1996-09-27
CN1061104C (zh) 2001-01-24
BR9600726A (pt) 1997-12-23
FI960645A (fi) 1996-08-16
ES2125795A1 (es) 1999-03-01
FI960645A0 (fi) 1996-02-13
DE19602304A1 (de) 1996-08-22
US6506294B1 (en) 2003-01-14
AT401183B (de) 1996-07-25
TW349076B (en) 1999-01-01
KR960031654A (ko) 1996-09-17
ES2125795B1 (es) 1999-11-16
CN1149086A (zh) 1997-05-07
ATA26895A (de) 1995-11-15

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