ES2125795A1 - Procedimiento para la regeneracion de electrolitos - Google Patents
Procedimiento para la regeneracion de electrolitosInfo
- Publication number
- ES2125795A1 ES2125795A1 ES09600224A ES9600224A ES2125795A1 ES 2125795 A1 ES2125795 A1 ES 2125795A1 ES 09600224 A ES09600224 A ES 09600224A ES 9600224 A ES9600224 A ES 9600224A ES 2125795 A1 ES2125795 A1 ES 2125795A1
- Authority
- ES
- Spain
- Prior art keywords
- pickle liquor
- electrolytes
- stainless steel
- regeneration
- na2s04
- 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.)
- Granted
Links
- 239000003792 electrolyte Substances 0.000 title abstract 3
- 235000021110 pickles Nutrition 0.000 title abstract 3
- 229910001220 stainless steel Inorganic materials 0.000 title abstract 3
- 239000010935 stainless steel Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 230000008929 regeneration Effects 0.000 title abstract 2
- 238000011069 regeneration method Methods 0.000 title abstract 2
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
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)
Abstract
Procedimiento para la regeneración de electrólitos. Se aplica en particular a la regeneración de Na{sub,2 SO{sub,4 , procedente de decapantes residuales para acero inoxidable, en particular bandas de acero inoxidable. Está caracterizado principalmente por el hecho de que se añade Na{sub,x H{sub,y S{sub,z O{sub,v , en una disolución ácida y se reduce así Cr{sup,6+ a Cr{sup,3+ , siendo los sufijos: x = 0 a 2, y = 0 a 2, z = 1 a 6, v = 2 a 6. Aplicable para reducir los costes de explotación y el impacto ambiental del decapado.
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 |
---|---|
ES2125795A1 true ES2125795A1 (es) | 1999-03-01 |
ES2125795B1 ES2125795B1 (es) | 1999-11-16 |
Family
ID=3486028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES009600224A Expired - Fee Related ES2125795B1 (es) | 1995-02-15 | 1996-02-01 | Procedimiento para la regeneracion de electrolitos. |
Country Status (10)
Country | Link |
---|---|
US (1) | US6506294B1 (es) |
KR (1) | KR100209987B1 (es) |
CN (1) | CN1061104C (es) |
AT (1) | AT401183B (es) |
BR (1) | BR9600726A (es) |
DE (1) | DE19602304A1 (es) |
ES (1) | ES2125795B1 (es) |
FI (1) | FI960645A (es) |
FR (1) | FR2732041B1 (es) |
TW (1) | TW349076B (es) |
Families Citing this family (6)
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 |
Citations (2)
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 |
EP0291493A1 (de) * | 1987-05-07 | 1988-11-17 | Maschinenfabrik Andritz Actiengesellschaft | Verfahren zum elektrolytischen Beizen von chromhältigem Edelstahl |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1995
- 1995-02-15 AT AT0026895A patent/AT401183B/de not_active IP Right Cessation
-
1996
- 1996-01-23 DE DE19602304A patent/DE19602304A1/de not_active Ceased
- 1996-02-01 ES ES009600224A patent/ES2125795B1/es not_active Expired - Fee Related
- 1996-02-09 KR KR1019960003205A patent/KR100209987B1/ko not_active IP Right Cessation
- 1996-02-13 FI FI960645A patent/FI960645A/fi unknown
- 1996-02-14 BR BR9600726A patent/BR9600726A/pt not_active Application Discontinuation
- 1996-02-14 CN CN96105924A patent/CN1061104C/zh not_active Expired - Lifetime
- 1996-02-15 US US08/601,675 patent/US6506294B1/en not_active Expired - Lifetime
- 1996-02-15 FR FR9601854A patent/FR2732041B1/fr not_active Expired - Lifetime
- 1996-03-05 TW TW085102676A patent/TW349076B/zh not_active IP Right Cessation
Patent Citations (2)
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 |
EP0291493A1 (de) * | 1987-05-07 | 1988-11-17 | Maschinenfabrik Andritz Actiengesellschaft | Verfahren zum elektrolytischen Beizen von chromhältigem Edelstahl |
Non-Patent Citations (1)
Title |
---|
BASE DE DATOS CHEMICAL ABSTRACT en STN. AN 87:13475. OKUDAIRA, H y col. "Removal of hexavalent chromium from electrolyte solution for electromachining" & JP 52030260 A (HITACHI SEIKO KK) 07.03.1977 * |
Also Published As
Publication number | Publication date |
---|---|
US6506294B1 (en) | 2003-01-14 |
FI960645A (fi) | 1996-08-16 |
DE19602304A1 (de) | 1996-08-22 |
TW349076B (en) | 1999-01-01 |
ATA26895A (de) | 1995-11-15 |
ES2125795B1 (es) | 1999-11-16 |
CN1149086A (zh) | 1997-05-07 |
AT401183B (de) | 1996-07-25 |
FR2732041B1 (fr) | 1998-06-05 |
FI960645A0 (fi) | 1996-02-13 |
FR2732041A1 (fr) | 1996-09-27 |
BR9600726A (pt) | 1997-12-23 |
KR960031654A (ko) | 1996-09-17 |
KR100209987B1 (ko) | 1999-07-15 |
CN1061104C (zh) | 2001-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19990301 Kind code of ref document: A1 Effective date: 19990301 |
|
FD2A | Announcement of lapse in spain |
Effective date: 20160526 |