CA1230845A - Process and apparatus for treating sodium-nitrate- containing electrolytes in electrochemical cleaning - Google Patents
Process and apparatus for treating sodium-nitrate- containing electrolytes in electrochemical cleaningInfo
- Publication number
- CA1230845A CA1230845A CA000446621A CA446621A CA1230845A CA 1230845 A CA1230845 A CA 1230845A CA 000446621 A CA000446621 A CA 000446621A CA 446621 A CA446621 A CA 446621A CA 1230845 A CA1230845 A CA 1230845A
- Authority
- CA
- Canada
- Prior art keywords
- electrolyte
- treatment station
- ozone
- reactor
- oxidizing agent
- 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
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 239000010802 sludge Substances 0.000 claims abstract description 27
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 23
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims abstract description 22
- 239000007800 oxidant agent Substances 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002161 passivation Methods 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 230000002028 premature Effects 0.000 abstract description 2
- 229940001516 sodium nitrate Drugs 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 238000010626 work up procedure Methods 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 235000014413 iron hydroxide Nutrition 0.000 description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001673526 Lydia Species 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Applications Claiming Priority (2)
| 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 |
| DEP3303585.7-45 | 1983-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230845A true CA1230845A (en) | 1987-12-29 |
Family
ID=6189903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000446621A Expired CA1230845A (en) | 1983-02-03 | 1984-02-02 | Process and apparatus for treating sodium-nitrate- containing electrolytes in electrochemical cleaning |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4504370A (enExample) |
| EP (1) | EP0115793B1 (enExample) |
| JP (1) | JPS59143100A (enExample) |
| CA (1) | CA1230845A (enExample) |
| DE (2) | DE3303585C1 (enExample) |
| ES (1) | ES528212A0 (enExample) |
Families Citing this family (9)
| 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 |
| US5128010A (en) * | 1990-08-28 | 1992-07-07 | Liangcai Ye | Apparatus for electrical machining |
| BR9204117A (pt) * | 1991-02-04 | 1993-06-08 | Eastman Kodak Co | Processo para tratar uma solucao aquosa de alimentacao de nitrato de prata que contem nitrito e/ou acido nitrico,para diminuir a concentracao de nitrito |
| 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 |
| DE102019200832A1 (de) | 2019-01-24 | 2020-07-30 | MTU Aero Engines AG | VERFAHREN ZUM ENTFERNEN VON Cr(VI)-IONEN AUS EINER WÄSSRIGEN ELEKTROLYTLÖSUNG |
Family Cites Families (6)
| 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 (enExample) * | 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 |
-
1983
- 1983-02-03 DE DE3303585A patent/DE3303585C1/de not_active Expired
- 1983-12-20 ES ES528212A patent/ES528212A0/es active Granted
-
1984
- 1984-01-12 JP JP59004224A patent/JPS59143100A/ja active Granted
- 1984-01-14 DE DE8484100355T patent/DE3460435D1/de not_active Expired
- 1984-01-14 EP EP84100355A patent/EP0115793B1/de not_active Expired
- 1984-02-02 CA CA000446621A patent/CA1230845A/en not_active Expired
- 1984-02-03 US US06/576,900 patent/US4504370A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4504370A (en) | 1985-03-12 |
| DE3460435D1 (en) | 1986-09-18 |
| JPS6229520B2 (enExample) | 1987-06-26 |
| EP0115793A1 (de) | 1984-08-15 |
| DE3303585C1 (de) | 1984-02-09 |
| ES8501812A1 (es) | 1984-12-16 |
| ES528212A0 (es) | 1984-12-16 |
| JPS59143100A (ja) | 1984-08-16 |
| EP0115793B1 (de) | 1986-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |