DE3303585C1 - Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen - Google Patents

Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen

Info

Publication number
DE3303585C1
DE3303585C1 DE3303585A DE3303585A DE3303585C1 DE 3303585 C1 DE3303585 C1 DE 3303585C1 DE 3303585 A DE3303585 A DE 3303585A DE 3303585 A DE3303585 A DE 3303585A DE 3303585 C1 DE3303585 C1 DE 3303585C1
Authority
DE
Germany
Prior art keywords
electrolyte
reactor
ozone
oxidizing agent
nitrite
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
Application number
DE3303585A
Other languages
German (de)
English (en)
Inventor
Klaus Dipl.-Ing. Heck
Horst Dipl.-Ing. Lindner
Gerhard Dipl.-Chem. Dr. 8070 Ingolstadt Schmöger
Peter Ing.(Grad.) Ufer
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.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi 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 Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Priority to DE3303585A priority Critical patent/DE3303585C1/de
Priority to ES528212A priority patent/ES8501812A1/es
Priority to JP59004224A priority patent/JPS59143100A/ja
Priority to DE8484100355T priority patent/DE3460435D1/de
Priority to EP84100355A priority patent/EP0115793B1/de
Priority to CA000446621A priority patent/CA1230845A/en
Priority to US06/576,900 priority patent/US4504370A/en
Application granted granted Critical
Publication of DE3303585C1 publication Critical patent/DE3303585C1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/10—Supply or regeneration of working media
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/13—Purification and treatment of electroplating baths and plating wastes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Treatment Of Sludge (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
DE3303585A 1983-02-02 1983-02-03 Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen Expired DE3303585C1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE3303585A DE3303585C1 (de) 1983-02-03 1983-02-03 Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen
ES528212A ES8501812A1 (es) 1983-02-03 1983-12-20 Procedimiento y dispositivo para el tratamiento de electrolitos conteniendo nitrato sodico en la nivelacion electroquimica
JP59004224A JPS59143100A (ja) 1983-02-03 1984-01-12 硝酸ナトリウム系電解液を用いた電気化学的研摩方法及び装置
DE8484100355T DE3460435D1 (en) 1983-02-03 1984-01-14 Process and device for treating sodium-nitrate containing electrolytes during electrochemical removal
EP84100355A EP0115793B1 (de) 1983-02-03 1984-01-14 Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen
CA000446621A CA1230845A (en) 1983-02-03 1984-02-02 Process and apparatus for treating sodium-nitrate- containing electrolytes in electrochemical cleaning
US06/576,900 US4504370A (en) 1983-02-02 1984-02-03 Method and apparatus for electrochemical machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3303585A DE3303585C1 (de) 1983-02-03 1983-02-03 Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen

Publications (1)

Publication Number Publication Date
DE3303585C1 true DE3303585C1 (de) 1984-02-09

Family

ID=6189903

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3303585A Expired DE3303585C1 (de) 1983-02-02 1983-02-03 Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen
DE8484100355T Expired DE3460435D1 (en) 1983-02-03 1984-01-14 Process and device for treating sodium-nitrate containing electrolytes during electrochemical removal

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8484100355T Expired DE3460435D1 (en) 1983-02-03 1984-01-14 Process and device for treating sodium-nitrate containing electrolytes during electrochemical removal

Country Status (6)

Country Link
US (1) US4504370A (OSRAM)
EP (1) EP0115793B1 (OSRAM)
JP (1) JPS59143100A (OSRAM)
CA (1) CA1230845A (OSRAM)
DE (2) DE3303585C1 (OSRAM)
ES (1) ES8501812A1 (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542820A1 (de) * 1985-12-04 1987-06-11 Aeg Elotherm Gmbh Verfahren zur regeneration und entgiftung von elektrolyten der elektrochemischen metallbearbeitung
DE3806378C1 (en) * 1988-02-29 1989-07-20 Audi Ag, 8070 Ingolstadt, De Process and appliance for treating ozone-containing, turbid liquids
EP3686317A2 (de) 2019-01-24 2020-07-29 MTU Aero Engines GmbH Verfahren zum entfernen von cr(vi)-ionen aus einer wässrigen elektrolytlösung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128010A (en) * 1990-08-28 1992-07-07 Liangcai Ye Apparatus for electrical machining
JPH05506207A (ja) * 1991-02-04 1993-09-16 イーストマン コダック カンパニー 硝酸銀溶液からの亜硝酸塩の除去方法
US5320505A (en) * 1993-03-04 1994-06-14 Tecumseh Products Company Electrochemical machining of scroll wraps
US6110351A (en) * 1998-10-15 2000-08-29 University Of Hawaii Method of electrochemical machining (ECM) of particulate metal-matrix composites (MMcs)
GB2352993B (en) * 1999-08-10 2003-12-24 Clive Alan Francis Blade sharpener
AU2000238151A1 (en) * 2000-03-28 2001-10-08 Sck.Cen Method and apparatus for reducing an electrolyte containing nitric acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU458413A1 (ru) * 1973-04-06 1975-01-30 Предприятие П/Я А-7119 Электролит дл электрохимической обработки металлов
US3994790A (en) * 1974-02-15 1976-11-30 Inoue-Japan Research Inc. Method of treating a waste gas
JPS5112342A (OSRAM) * 1974-07-22 1976-01-30 Hitachi Ltd
JPS5116244A (en) * 1974-07-31 1976-02-09 Hitachi Ltd Kinzokuno yokaishorihoho oyobi sonosochi
JPS51136362A (en) * 1975-05-21 1976-11-25 Mitsubishi Electric Corp Method of treating discharge sludge from electrolytic working into non polluting substance
FR2381595A1 (fr) * 1977-02-24 1978-09-22 Centre Techn Ind Mecanique Procede d'usinage electrochimique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542820A1 (de) * 1985-12-04 1987-06-11 Aeg Elotherm Gmbh Verfahren zur regeneration und entgiftung von elektrolyten der elektrochemischen metallbearbeitung
DE3806378C1 (en) * 1988-02-29 1989-07-20 Audi Ag, 8070 Ingolstadt, De Process and appliance for treating ozone-containing, turbid liquids
EP3686317A2 (de) 2019-01-24 2020-07-29 MTU Aero Engines GmbH Verfahren zum entfernen von cr(vi)-ionen aus einer wässrigen elektrolytlösung
DE102019200832A1 (de) 2019-01-24 2020-07-30 MTU Aero Engines AG VERFAHREN ZUM ENTFERNEN VON Cr(VI)-IONEN AUS EINER WÄSSRIGEN ELEKTROLYTLÖSUNG
US11389887B2 (en) 2019-01-24 2022-07-19 MTU Aero Engines AG Method of removing Cr(VI) ions from an aqueous electrolyte solution

Also Published As

Publication number Publication date
CA1230845A (en) 1987-12-29
EP0115793A1 (de) 1984-08-15
JPS6229520B2 (OSRAM) 1987-06-26
DE3460435D1 (en) 1986-09-18
US4504370A (en) 1985-03-12
EP0115793B1 (de) 1986-08-13
JPS59143100A (ja) 1984-08-16
ES528212A0 (es) 1984-12-16
ES8501812A1 (es) 1984-12-16

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AUDI AG, 8070 INGOLSTADT, DE

8339 Ceased/non-payment of the annual fee