GB1393689A - Method of electrochemically manufacturing silver particles - Google Patents
Method of electrochemically manufacturing silver particlesInfo
- Publication number
- GB1393689A GB1393689A GB3437572A GB3437572A GB1393689A GB 1393689 A GB1393689 A GB 1393689A GB 3437572 A GB3437572 A GB 3437572A GB 3437572 A GB3437572 A GB 3437572A GB 1393689 A GB1393689 A GB 1393689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- silver
- current
- silver particles
- cathodes
- 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
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052709 silver Inorganic materials 0.000 title abstract 6
- 239000004332 silver Substances 0.000 title abstract 6
- 239000002245 particle Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910018967 Pt—Rh Inorganic materials 0.000 abstract 2
- 229910002804 graphite Inorganic materials 0.000 abstract 2
- 239000010439 graphite Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052697 platinum Inorganic materials 0.000 abstract 2
- 229910052719 titanium Inorganic materials 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 1
- PZAGQUOSOTUKEC-UHFFFAOYSA-N acetic acid;sulfuric acid Chemical compound CC(O)=O.OS(O)(=O)=O PZAGQUOSOTUKEC-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000008139 complexing agent Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000010944 silver (metal) Substances 0.000 abstract 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
- C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/348—Electrochemical processes, e.g. electrochemical deposition or anodisation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C5/00—Electrolytic production, recovery or refining of metal powders or porous metal masses
- C25C5/02—Electrolytic production, recovery or refining of metal powders or porous metal masses from solutions
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Toxicology (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Catalysts (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
1393689 Electrolytic production of silver SNAMPROGETTI SPA 21 July 1972 [31 July 1971] 34375/72 Heading C7B In a method of electro-chemically manufacturing silver particles, a solution of silver salt is subjected to a succession of cycles which include a period of 3-10 seconds in which the electric current is passed through the solution and a period of 3-60 seconds in which no current is passed. Once in every 10-50 cycles the current may be reversed for 1-60 secs to laser the deposit. The solution may comprise silver, nitrate, chloride, sulphate acetate or oxalate and contain a complexing agent e.g. NH3 at 3-50 moles per gm atom of Ag. The solution may be 0.1-10.0 gm/litre Ag and pH9- 12.5, the current density may be 0.1-0.5 amp/ cm<SP>2</SP>. The cell may comprise radial electrodes in groups of five pairs of anodes 109 and cathodes 110. The anodes 109 may be graphite, Pt, Pt-Rh or Ti. The cathodes may be Ag, Stainless steel, graphite, Pt, Pt-Rh or Ti. The solution is fed in at 115 and is led off via valve 112 to a centrifuge for separating the silver particles. The solution may be recycled. The silver has a particle size of less than 1500A and may be used as a catalyst in the oxidation of ethylene or ethylene oxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2702271 | 1971-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1393689A true GB1393689A (en) | 1975-05-07 |
Family
ID=11220791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3437572A Expired GB1393689A (en) | 1971-07-31 | 1972-07-21 | Method of electrochemically manufacturing silver particles |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US3836436A (en) |
| JP (1) | JPS5639932B1 (en) |
| AT (1) | AT322514B (en) |
| AU (1) | AU470570B2 (en) |
| BE (1) | BE786623A (en) |
| BR (1) | BR7205136D0 (en) |
| CA (1) | CA1005388A (en) |
| CH (1) | CH545653A (en) |
| CS (1) | CS168601B2 (en) |
| DD (1) | DD98211A5 (en) |
| DE (1) | DE2237574C3 (en) |
| DK (1) | DK141277B (en) |
| ES (1) | ES405711A1 (en) |
| FR (1) | FR2148028B1 (en) |
| GB (1) | GB1393689A (en) |
| LU (1) | LU65795A1 (en) |
| NL (1) | NL161509C (en) |
| NO (1) | NO131776C (en) |
| PL (1) | PL82002B1 (en) |
| RO (1) | RO61157A (en) |
| SE (1) | SE371938B (en) |
| SU (1) | SU444351A3 (en) |
| TR (1) | TR18002A (en) |
| YU (1) | YU34574B (en) |
| ZA (1) | ZA725196B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2255150C1 (en) * | 2003-12-04 | 2005-06-27 | Федеральное государственное унитарное предприятие "Научное конструкторско-технологическое бюро "Феррит" | Silver powder production method |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2520219C3 (en) * | 1975-05-07 | 1983-02-24 | Basf Ag, 6700 Ludwigshafen | Process for the production of formaldehyde |
| SE8504290L (en) * | 1985-09-16 | 1987-03-17 | Boliden Ab | PROCEDURE FOR SELECTIVE EXTRACTION OF LEAD FROM COMPLEX SULFIDE ORE |
| US5413987A (en) * | 1994-01-24 | 1995-05-09 | Midwest Research Institute | Preparation of superconductor precursor powders |
| ES2133166T3 (en) * | 1994-03-14 | 1999-09-01 | Studiengesellschaft Kohle Mbh | ELECTROCHEMICAL REDUCTION OF METAL SALTS AS A METHOD OF PREPARING METALLIC COLLOIDS HIGHLY AND GROUPS OF METALS FIXED TO SUBSTRATES BY ELECTROCHEMICAL REDUCTION OF METAL SALTS. |
| US5462647A (en) * | 1994-09-09 | 1995-10-31 | Midwest Research Institute | Preparation of lead-zirconium-titanium film and powder by electrodeposition |
| WO1996028249A1 (en) * | 1995-03-15 | 1996-09-19 | Basf Aktiengesellschaft | Process for preparing phosphorus-doped silver catalysts |
| US5785837A (en) * | 1996-01-02 | 1998-07-28 | Midwest Research Institute | Preparation of transparent conductors ferroelectric memory materials and ferrites |
| DE19835481A1 (en) | 1998-08-07 | 2000-02-17 | Bayer Ag | Process for the oxidation of hydrocarbons |
| DE19912896A1 (en) * | 1999-03-23 | 2000-09-28 | Daimler Chrysler Ag | Process for producing a catalyst |
| PL377451A1 (en) * | 2005-10-05 | 2007-04-16 | Instytut Wysokich Ciśnień PAN | Methods of reaction leading, chemical reactor |
| DE102014204372A1 (en) | 2014-03-11 | 2015-09-17 | Bayer Materialscience Ag | Process for the preparation of catalytically active powders of metallic silver or of mixtures of metallic silver with silver oxide for the production of gas diffusion electrodes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2216167A (en) * | 1936-08-24 | 1940-10-01 | Gen Metals Powder Company | Method of producing metal powders |
| SU129447A1 (en) * | 1959-09-15 | 1959-11-30 | В.И. Семерюк | The method of electrolytically obtaining silver powder from insoluble compounds |
| DE1188822B (en) * | 1964-04-24 | 1965-03-11 | Agfa Ag | Method and device for the electrolytic recovery of silver from used photographic processing fluids |
-
0
- BE BE786623D patent/BE786623A/en unknown
-
1972
- 1972-07-12 AU AU44472/72A patent/AU470570B2/en not_active Expired
- 1972-07-21 YU YU1912/72A patent/YU34574B/en unknown
- 1972-07-21 GB GB3437572A patent/GB1393689A/en not_active Expired
- 1972-07-25 CA CA147,929A patent/CA1005388A/en not_active Expired
- 1972-07-25 TR TR18002A patent/TR18002A/en unknown
- 1972-07-26 FR FR7226812A patent/FR2148028B1/fr not_active Expired
- 1972-07-26 LU LU65795D patent/LU65795A1/xx unknown
- 1972-07-27 ZA ZA725196A patent/ZA725196B/en unknown
- 1972-07-28 DK DK374872AA patent/DK141277B/en unknown
- 1972-07-28 US US00275937A patent/US3836436A/en not_active Expired - Lifetime
- 1972-07-28 DD DD164747A patent/DD98211A5/xx unknown
- 1972-07-29 ES ES405711A patent/ES405711A1/en not_active Expired
- 1972-07-29 PL PL1972157010A patent/PL82002B1/pl unknown
- 1972-07-30 SU SU1814635A patent/SU444351A3/en active
- 1972-07-31 CS CS5351A patent/CS168601B2/cs unknown
- 1972-07-31 JP JP7605672A patent/JPS5639932B1/ja active Pending
- 1972-07-31 CH CH1138172A patent/CH545653A/xx not_active IP Right Cessation
- 1972-07-31 SE SE7209975A patent/SE371938B/xx unknown
- 1972-07-31 DE DE2237574A patent/DE2237574C3/en not_active Expired
- 1972-07-31 AT AT661472A patent/AT322514B/en not_active IP Right Cessation
- 1972-07-31 RO RO71807A patent/RO61157A/ro unknown
- 1972-07-31 NO NO2731/72A patent/NO131776C/no unknown
- 1972-07-31 NL NL7210498.A patent/NL161509C/en not_active IP Right Cessation
- 1972-08-01 BR BR5136/72A patent/BR7205136D0/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2255150C1 (en) * | 2003-12-04 | 2005-06-27 | Федеральное государственное унитарное предприятие "Научное конструкторско-технологическое бюро "Феррит" | Silver powder production method |
Also Published As
| Publication number | Publication date |
|---|---|
| BE786623A (en) | 1973-01-24 |
| CH545653A (en) | 1974-02-15 |
| RO61157A (en) | 1977-01-15 |
| LU65795A1 (en) | 1972-11-28 |
| BR7205136D0 (en) | 1973-06-14 |
| DE2237574A1 (en) | 1973-02-22 |
| CS168601B2 (en) | 1976-06-29 |
| FR2148028A1 (en) | 1973-03-11 |
| ZA725196B (en) | 1973-04-25 |
| SE371938B (en) | 1974-12-09 |
| AU4447272A (en) | 1974-01-17 |
| ES405711A1 (en) | 1975-09-01 |
| NL7210498A (en) | 1973-02-02 |
| TR18002A (en) | 1976-08-20 |
| US3836436A (en) | 1974-09-17 |
| NO131776C (en) | 1975-07-30 |
| YU34574B (en) | 1979-10-31 |
| DE2237574C3 (en) | 1975-02-27 |
| YU191272A (en) | 1979-04-30 |
| NO131776B (en) | 1975-04-21 |
| DE2237574B2 (en) | 1974-07-04 |
| DD98211A5 (en) | 1973-06-12 |
| FR2148028B1 (en) | 1976-01-16 |
| DK141277B (en) | 1980-02-18 |
| AU470570B2 (en) | 1976-03-18 |
| DK141277C (en) | 1980-08-11 |
| CA1005388A (en) | 1977-02-15 |
| SU444351A3 (en) | 1974-09-25 |
| AT322514B (en) | 1975-05-26 |
| JPS5639932B1 (en) | 1981-09-17 |
| NL161509B (en) | 1979-09-17 |
| PL82002B1 (en) | 1975-10-31 |
| NL161509C (en) | 1980-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1393689A (en) | Method of electrochemically manufacturing silver particles | |
| GB1052569A (en) | ||
| RU95110667A (en) | Process for preparing manganese gamma-dioxide, hybrid material containing manganese gamma dioxide, and electrolytic cell | |
| GB850379A (en) | Improvements in lead dioxide electrodes | |
| US3650925A (en) | Recovery of metals from solution | |
| GB1209991A (en) | Process for electrolytic oxidation | |
| SU444351A1 (en) | A method of producing a silver catalyst for the oxidation of ethylene | |
| Vuković | Rotating ring–disc electrode study of the enhanced oxygen evolution on an activated ruthenium electrode | |
| CA1152937A (en) | Anode-assisted cation reduction | |
| GB1472028A (en) | Process for the manufacture of electrodes for electrolytic purposes and electrodes so manufactured | |
| AU2011341844A2 (en) | Electro-recovery of gold and silver from leaching solutions by means of simultaneous cathodic and anodic deposition | |
| GB1312681A (en) | Electrolytic recovery of metals from solution | |
| GB1507018A (en) | Electrolytic trapping of iodine from process gas streams | |
| GB1406568A (en) | Electrolytic surface preparation process for recoating of used coated metallic electrodes | |
| Lačnjevac et al. | Synergetic electrocatalytic effect of d metals for the hydrogen evolution reaction on gold substrates | |
| JPH02310382A (en) | Method for regenerating ferric chloride etching composition | |
| US4626326A (en) | Electrolytic process for manufacturing pure potassium peroxydiphosphate | |
| US3294667A (en) | Magnetite-stabilized lead anode | |
| GB2103245A (en) | Process for the electrolytic production of ozone | |
| JPH07100875B2 (en) | Ammonium sulphate-containing etching solution and method of regenerating the same | |
| JPS63118084A (en) | Electrochemical removal method of hypochlorite from chlorate electrolyzer | |
| US3041253A (en) | Electrolytic preparation of iron powder | |
| SU763484A1 (en) | Method of electrochemical dissolving of titanium | |
| GB1148865A (en) | A method of producing active electrodes with a low over-voltage for electrolysis | |
| US2253871A (en) | Method of activating catalysts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |