DE2251442A1 - Electrolytic detoxication of cyanide using V4A anode - and adding copper salt in small amt to prevent electrolytic dissolution of anode, for economy - Google Patents
Electrolytic detoxication of cyanide using V4A anode - and adding copper salt in small amt to prevent electrolytic dissolution of anode, for economyInfo
- Publication number
- DE2251442A1 DE2251442A1 DE19722251442 DE2251442A DE2251442A1 DE 2251442 A1 DE2251442 A1 DE 2251442A1 DE 19722251442 DE19722251442 DE 19722251442 DE 2251442 A DE2251442 A DE 2251442A DE 2251442 A1 DE2251442 A1 DE 2251442A1
- Authority
- DE
- Germany
- Prior art keywords
- anode
- electrolytic
- cyanide
- detoxication
- economy
- 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
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims description 8
- 150000001879 copper Chemical class 0.000 title description 4
- 238000004090 dissolution Methods 0.000 title description 2
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000001784 detoxification Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010405 anode material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010924 continuous production Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 4
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 229910000510 noble metal Inorganic materials 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 230000005654 stationary process Effects 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical class [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/11—Electrochemical processes, e.g. electrodialysis
- A62D3/115—Electrolytic degradation or conversion
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/26—Organic substances containing nitrogen or phosphorus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/45—Inorganic substances containing nitrogen or phosphorus
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
Verfahren zur elektrochemischen Entgiftung von cyanidhaltigen Wässrigen Lösungen In Anpassung an die jeweiiigen Gegebenheiten sind chemische, elektrochemische und katalytische Verfahren für die Entgiftung von cyanidhaltigen Lösungen Lösungen bekannt und Kombinationen solcher Verfahren.Process for the electrochemical detoxification of cyanide-containing water Solutions In adaptation to the respective conditions are chemical, electrochemical and catalytic processes for the detoxification of solutions containing cyanide known and combinations of such processes.
Der Erfindung liegt die Aufgabenstellung zugrunde, das in chemischer Hinsicht hochresistente V4A-Materlal als Werkstoff für die Anoden bei der elektrochemischen Entgiftung von Cyanid zu ver-enden.The invention is based on the object that in chemical Highly resistant V4A material as material for the anodes in the electrochemical Detoxification of cyanide to end.
Gegenstand der Erfindung ist ein \Terfahrc-n zur elektrolytischen Entgiftung von Cyanid, dadurch gekennzeichnet, daß als Anodenmaterial VA-Material verwendet zirka und dem Elektrolyten Kupf ersalze in Mengen von 50 mg Cu2+ pro Liter bis 150 mg Gu2+ pro Liter zugeset'zt werden.The subject of the invention is a \ Terfahrc-n for electrolytic Detoxification of cyanide, characterized in that VA material is used as the anode material uses approximately and the electrolyte copper salts in quantities of 50 mg Cu2 + per liter up to 150 mg Gu2 + per liter can be added.
Als besonders vorteilhaft'hat sich ein Zusatz von 400 mg CuSO4.5H2O pro Liter eriesen.It is particularly advantageous to add 400 mg of CuSO4.5H2O per liter.
Es ist auBerordentlich überraschend, daß durch Zusatz so kleiner ?iengen an Kupfersalzen die elektrolytische Auflösung der V4A-Anoden unter Stromfluß vermieden werden kann, daß eine Ausgestaltung zu einem wirtschaftlichen technischen Verfahren möglich ist, bei dem geeignete Anoden im Elektrolyten selbst erhalten werden können.It is extraordinarily surprising that they are so smaller by adding them Avoided electrolytic dissolution of the V4A anodes with copper salts under current flow It can be that an embodiment becomes an economical technical process is possible in which suitable anodes can be obtained in the electrolyte itself.
Selbstverständlich können auch Salze des Silbers, des Goldes und anderer edlerer Metalle für das erfindungsgemäße Verfahren ver--endet werden, die jedoch teurer sind als die Salze des Kupfers.Of course, salts of silver, gold and others can also be used nobler metals are used for the process according to the invention, but these are more expensive than the salts of copper.
Bekannt sind die Verwendung von Magnetit als Anodenmaterial, der Zusatz von o,2 % Kupfer oder anderer edlerer Metalle zu grunde metallen für-Elektrolysen, desgleichen die Herstellung von Zementkupfer durch Ausfällung vermittels Eisen.The use of magnetite as an anode material, the additive, is known from o, 2% copper or other noble metals to basic metals for electrolysis, likewise the production of cement-copper by precipitation with iron.
Überraschenderweise wird beim erfindungsge£oäßen Verfahren eine qinreichende Haftfetigkeit des feinpulvrigen Kupfers auf dem Anodenrnaterial für die Durchführung der elektrolytischen Entgiftung nach dem erfindungsgemäßen Verfahren erzielt. Das ist um o überraschender, da bei der Elektrolyse auch noch abgeschiedenes feinpulvrie Kupfer in Lösung geht und leer abgeschieden wird und keine unlösliche nichtleitende Sperrschichten erzeugt erden.Surprisingly, the method according to the invention is sufficient Adhesion of the finely powdered copper to the anode material for the implementation the electrolytic detoxification achieved by the method according to the invention. That is all the more surprising, since fine powder also deposited during the electrolysis Copper goes into solution and is deposited empty and not insoluble non-conductive Ground barriers created.
Die V4A-Anoden zeigen bei der Durchführung der Elektrolyse gemäß Patentanspruch keinerlei Gewichtsabnahme, auch über lange Zeiträume hin eg nicht.The V4A anodes show when carrying out the electrolysis according to claim no weight loss whatsoever, even over long periods of time, eg not.
Das vorschlagsgemäße Verfahren kann mit der sei elektrolytischen Oxydationen üblicnen Stromausbeute von 65 % bis zu einem Restgehalt von o,) g/l CN im burcnlaufverfahren oder im Standverfahren durengefünrt @erden. Daran kann chemische Restentgiftung angeschlossen @erden.The proposed method can be with electrolytic oxidations Usual current yield of 65% up to a residual content of 0.1 g / l CN in the burnt-out process or in the stand procedure durengefünrt @erden. This can be used to detoxify chemical residues connected @ground.
Selbstverständlich können dem Elektrolyten aucn noch Kupfersalzmengen über 150 mg Cu2+ pro Liter zugesetzt werden.Of course, the electrolyte can also contain amounts of copper salt more than 150 mg Cu2 + per liter are added.
Beispiel: 22,5 1 einer bösung mit 10 g/l CN wurden im Standverfahren bis auf einen Restgehalt von 180 mg/l ON entgiftet. Die Gesamtmenge an oxidierter Cyanid betrug somit 221 g.Example: 22.5 l of a solution with 10 g / l CN were used in the standing process detoxified to a residual content of 180 mg / l ON. The total amount of oxidized The cyanide was thus 221 g.
flektrolysedaten: Zellenpannung 2,3 V Stromstärke 100 A Llektrolysedauer 6 Std. 40 Min.Flectrolysis data: Cell voltage 2.3 V, current 100 A, duration of electrolysis 6 hours 40 minutes
Elektrodenabstand 27 mm Hieraus ergibt sich für die Entgiftung von einem Kilogramm Cyanid ein Leistungsbedarf von 6,8 KW. Electrode spacing 27 mm This results in the detoxification of one kilogram of cyanide requires 6.8 KW of power.
Es @urden 393 mg Kupfersulfat pro Liter Lösung zugesetzt, was einer Konzentration von ca. 100 mg/1 Cu2+ entspricht.393 mg of copper sulfate per liter of solution were added, which is a Concentration of approx. 100 mg / 1 Cu2 + corresponds.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722251442 DE2251442C3 (en) | 1972-10-20 | 1972-10-20 | Process for the electrolytic detoxification of cyanide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722251442 DE2251442C3 (en) | 1972-10-20 | 1972-10-20 | Process for the electrolytic detoxification of cyanide |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2251442A1 true DE2251442A1 (en) | 1974-04-25 |
| DE2251442B2 DE2251442B2 (en) | 1979-05-17 |
| DE2251442C3 DE2251442C3 (en) | 1980-01-10 |
Family
ID=5859558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722251442 Expired DE2251442C3 (en) | 1972-10-20 | 1972-10-20 | Process for the electrolytic detoxification of cyanide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2251442C3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218916A1 (en) * | 1992-06-10 | 1993-12-16 | Heraeus Elektrochemie | Process for electrolytic detoxification or regeneration of an aqueous solution containing cyanide and device for carrying out the process |
| DE102011081805A1 (en) | 2011-08-30 | 2013-02-28 | Akretia Gmbh | Electrolytic refining of metals from solid starting material containing metal to be refined, comprises contacting starting material with cyanide-containing leaching solution, electrolytically depositing metal, and partially reacting cyanide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3429156C2 (en) * | 1984-08-08 | 1994-06-23 | Teves Gmbh Alfred | Circuit arrangement for monitoring and controlling an anti-lock brake system |
-
1972
- 1972-10-20 DE DE19722251442 patent/DE2251442C3/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218916A1 (en) * | 1992-06-10 | 1993-12-16 | Heraeus Elektrochemie | Process for electrolytic detoxification or regeneration of an aqueous solution containing cyanide and device for carrying out the process |
| DE102011081805A1 (en) | 2011-08-30 | 2013-02-28 | Akretia Gmbh | Electrolytic refining of metals from solid starting material containing metal to be refined, comprises contacting starting material with cyanide-containing leaching solution, electrolytically depositing metal, and partially reacting cyanide |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2251442C3 (en) | 1980-01-10 |
| DE2251442B2 (en) | 1979-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: KERAMCHEMIE GMBH, 5433 SIERSHAHN, DE |
|
| 8339 | Ceased/non-payment of the annual fee |