CS199276B2 - Method for removal of chromate ions from electrolytic solution in electrolytic etching process - Google Patents
Method for removal of chromate ions from electrolytic solution in electrolytic etching process Download PDFInfo
- Publication number
- CS199276B2 CS199276B2 CS763414A CS341476A CS199276B2 CS 199276 B2 CS199276 B2 CS 199276B2 CS 763414 A CS763414 A CS 763414A CS 341476 A CS341476 A CS 341476A CS 199276 B2 CS199276 B2 CS 199276B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- solution
- electrolytic
- nitrate
- ferrous
- chromium
- Prior art date
Links
- 239000008151 electrolyte solution Substances 0.000 title claims abstract description 42
- 238000000866 electrolytic etching Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 16
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 17
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 17
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229960002089 ferrous chloride Drugs 0.000 claims abstract description 7
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims abstract description 7
- 150000001845 chromium compounds Chemical group 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 20
- 239000010802 sludge Substances 0.000 abstract description 20
- -1 chromium (VI) compound Chemical class 0.000 abstract description 9
- 239000011651 chromium Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 20
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 10
- 239000004317 sodium nitrate Substances 0.000 description 10
- 235000010344 sodium nitrate Nutrition 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010828 elution Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 description 5
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910001448 ferrous ion Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910000753 refractory alloy Inorganic materials 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229940077449 dichromate ion Drugs 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- ing And Chemical Polishing (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50059669A JPS51136362A (en) | 1975-05-21 | 1975-05-21 | Method of treating discharge sludge from electrolytic working into non polluting substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS199276B2 true CS199276B2 (en) | 1980-07-31 |
Family
ID=13119817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS763414A CS199276B2 (en) | 1975-05-21 | 1976-05-21 | Method for removal of chromate ions from electrolytic solution in electrolytic etching process |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4040920A (pl) |
| JP (1) | JPS51136362A (pl) |
| CS (1) | CS199276B2 (pl) |
| DE (1) | DE2622928C3 (pl) |
| PL (1) | PL110331B1 (pl) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3303585C1 (de) * | 1983-02-03 | 1984-02-09 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Verfahren und Vorrichtung zum Behandeln von Natrium-Nitrat haltigen Elektrolyten beim elektrochemischen Abtragen |
| DE3542819A1 (de) * | 1985-12-04 | 1987-06-11 | Aeg Elotherm Gmbh | Verfahren zur regeneration von elektrolyten |
| KR910008243B1 (ko) * | 1987-06-23 | 1991-10-12 | 시즈오카 세이키 가부시키가이샤 | 전해가공장치 |
| FI903132A0 (fi) * | 1988-10-21 | 1990-06-20 | Bruss Polt I | Foerfarande foer elektrokemisk behandling av alster av elledande material. |
| IT1277845B1 (it) * | 1994-10-11 | 1997-11-12 | Mario Marti | Riduzione diretta dei cromati, da crvi a criii, con solfato ferroso, in ambiente a ph superiore a 5, e sue applicazionim in campo |
| US5783061A (en) * | 1996-03-27 | 1998-07-21 | U.S. Philips Corporation | Method of removing iron compounds and chromium compounds from an aqueous electrolytic solution as well as the use of this method in electrochemical machining |
| RU2195052C1 (ru) * | 2001-09-11 | 2002-12-20 | Государственное унитарное предприятие "Всероссийский научно-исследовательский институт химической технологии" | Способ регенерации отработанного раствора щелочного аккумулятора |
| DE102007049495A1 (de) * | 2007-09-14 | 2009-03-19 | Extrude Hone Gmbh | Vorrichtung und Verfahren zur elektrochemischen Bearbeitung |
| ES2639025T3 (es) * | 2010-05-12 | 2017-10-25 | Industria De Turbo Propulsores S.A. | Método de obtención de electrolito reutilizable proveniente de maquinado electroquímico de partes hechas de níquel, hierro y cromo |
| DE102016004819A1 (de) | 2016-04-21 | 2017-10-26 | EMAG GmbH & Co. KG | Verfahren zum Entfernen von Chromverbindungen aus Elektrolytlösungen |
| DE102019200832A1 (de) * | 2019-01-24 | 2020-07-30 | MTU Aero Engines AG | VERFAHREN ZUM ENTFERNEN VON Cr(VI)-IONEN AUS EINER WÄSSRIGEN ELEKTROLYTLÖSUNG |
| DE102022106313A1 (de) * | 2022-03-17 | 2023-09-21 | MTU Aero Engines AG | Verfahren zum bearbeiten eines werkstücks durch elektrochemisches abtragen |
| CN115385507B (zh) * | 2022-09-01 | 2024-03-15 | 大连东泰产业废弃物处理有限公司 | 一种硫酸体系废蚀刻液和水处理含铬污泥协同处置的预处理方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3255097A (en) * | 1962-06-12 | 1966-06-07 | Anocut Eng Co | Method and apparatus for clarifying electrolyte |
| US3761381A (en) * | 1966-10-18 | 1973-09-25 | A Yagishita | Plating waste recovery unit |
| US3658470A (en) * | 1969-06-16 | 1972-04-25 | Industrial Filter Pump Mfg Co | Metal ion recovery system |
| JPS4872965A (pl) * | 1971-12-29 | 1973-10-02 | ||
| JPS5035061A (pl) * | 1973-07-28 | 1975-04-03 |
-
1975
- 1975-05-21 JP JP50059669A patent/JPS51136362A/ja active Pending
-
1976
- 1976-04-30 US US05/682,119 patent/US4040920A/en not_active Expired - Lifetime
- 1976-05-20 PL PL1976189734A patent/PL110331B1/pl unknown
- 1976-05-21 DE DE2622928A patent/DE2622928C3/de not_active Expired
- 1976-05-21 CS CS763414A patent/CS199276B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2622928A1 (de) | 1976-11-25 |
| US4040920A (en) | 1977-08-09 |
| JPS51136362A (en) | 1976-11-25 |
| DE2622928B2 (de) | 1979-01-25 |
| DE2622928C3 (de) | 1985-06-20 |
| PL110331B1 (en) | 1980-07-31 |
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