GB654655A - Electrolytic oxidation process - Google Patents
Electrolytic oxidation processInfo
- Publication number
- GB654655A GB654655A GB18887/47A GB1888747A GB654655A GB 654655 A GB654655 A GB 654655A GB 18887/47 A GB18887/47 A GB 18887/47A GB 1888747 A GB1888747 A GB 1888747A GB 654655 A GB654655 A GB 654655A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- quinoline
- anode
- sulphuric acid
- lead
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/005—Multi-cellular glass ; Porous or hollow glass or glass particles obtained by leaching after a phase separation step
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/008—Other surface treatment of glass not in the form of fibres or filaments comprising a lixiviation step
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/20—Processes
- C25B3/23—Oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
654,655. Electrolytic preparation of quinolinic. acid. MERCK & CO., Inc. July 16, 1947, No. 18887. Convention date, Nov. 6, 1941. [Class 41] A process of preparing quinolinic acid electrolytically comprises reacting quinoline with about four times its weight of 20 per cent oleum, preferably for about twenty minutes at about 180 C. diluting the resulting mixture of sulphonated quinoline and sulphuric acid to approximately twice its volume with water, and delivering it to the anode compartment of an electrolytic cell having a lead anode coated with lead dioxide, oxidizing the quinoline at a current density of 0.5 to 1.5 amperes per square decimetre, until approximately 370 ampere hours per mole. of sulphonated quinoline have been consumed, then reducing the current density to 0.5 to 0.75 amperes per square decimetre for approximately 220 ampere hours per mole., and recovering quinolinic acid from the anolyte. The cathode compartment may be packed with porous acid-resisting substance such as sand and kept filled with sulphuric acid. The cathode may be of acid-resisting metal such as copper, a highly-resistant steel, chromel alloy, or may be of graphite. The anode may be of lead coated with lead dioxide by electrolysis in sulphuric acid electrolyte, and may be a cylindrical sheet, a coil or a series of plates. It may be activated before use either by passing a current through the cell with the anode immersed in sulphuric acid containing a depolarizer such as quinoline or picoline, or by passing a current through the cell and reversing its direction for at least five intervals of ten minutes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US262275XA | 1941-11-06 | 1941-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654655A true GB654655A (en) | 1951-06-27 |
Family
ID=21830579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18887/47A Expired GB654655A (en) | 1941-11-06 | 1947-07-16 | Electrolytic oxidation process |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH262275A (en) |
| FR (1) | FR939548A (en) |
| GB (1) | GB654655A (en) |
-
1947
- 1947-01-06 FR FR939548D patent/FR939548A/en not_active Expired
- 1947-03-05 CH CH262275D patent/CH262275A/en unknown
- 1947-07-16 GB GB18887/47A patent/GB654655A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH262275A (en) | 1949-06-30 |
| FR939548A (en) | 1948-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB834122A (en) | Electric current producing cell and method of generating current with same | |
| ES8704552A1 (en) | Use of a lead alloy for the anodes in the electrolytic production of zinc. | |
| GB1070190A (en) | Electrolytic polishing of metals | |
| GB752901A (en) | Method of producing an electroplate of nickel on magnesium and the magnesium-base alloys | |
| GB654655A (en) | Electrolytic oxidation process | |
| US2813825A (en) | Method of producing perchlorates | |
| GB648764A (en) | Electrolytic preparation of quinolinic acid | |
| Netherton et al. | Electrodeposition of rhenium from aqueous solutions | |
| US2559034A (en) | Electrolytic process of producing diacetone-keto-gulonic acid | |
| ES8104440A1 (en) | Electrodeposition of Aluminium Using Molten Electrolyte | |
| US1534226A (en) | Process for bleaching sulphuric acid | |
| US1271633A (en) | Method of electrolytic production of perchloric acid. | |
| Hurlen et al. | Kinetics of the Fe (Hg)/Fe (II) electrode in aqueous acetate solution | |
| US1376207A (en) | Process i | |
| US1491944A (en) | Process of producing chromic-acid solutions | |
| US2512483A (en) | Electrolytic oxidation of quinoline to quinolinic acid | |
| GB704945A (en) | Improvements in or relating to electrolytes and to methods for electropolishing and electrodeburring | |
| GB697196A (en) | Improvements in or relating to electroplating of basis metal with zinc | |
| US2453701A (en) | Process for electrolytic oxidation of quinoline to quinolinic acid | |
| Wells et al. | The Nature of Electrode Reactions. I. Factors Affecting the Electrochemical Reduction of N-Nitrosomethylaniline1 | |
| GB307050A (en) | Voltaic cell | |
| US1789523A (en) | Method of electrolytically depositing chromium | |
| Costa et al. | The influence of superimposed ac on the anodic corrosion of lead in aqueous sulphuric acid | |
| SU112306A1 (en) | Electrolytic production method for nickel-tungsten alloys | |
| Winslow | Porous Carbon Electrodes: III. Reduction of p‐Nitraniline |