GB1206797A - Electrochemical oxidation of phenol - Google Patents
Electrochemical oxidation of phenolInfo
- Publication number
- GB1206797A GB1206797A GB51120/67A GB5112067A GB1206797A GB 1206797 A GB1206797 A GB 1206797A GB 51120/67 A GB51120/67 A GB 51120/67A GB 5112067 A GB5112067 A GB 5112067A GB 1206797 A GB1206797 A GB 1206797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- benzoquinone
- hydroquinone
- cell
- anode
- 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
- 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)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
1,206,797. Electrolytic production of hydroquinone and p-benzoquinone. UNION CARBIDE CORP. Nov.9, 1967 [Nov.10, 1966; Feb.16, 1967], No.51120/67. Heading C7B. Phenol is electro-chemically oxidized to form p-benzoquinone in a divided cell or hydroquinone in an undivided cell by electrolysing an aqueous solution containing 0À5-4 wt % phenol and 1-5 wt % of an electrolyte at a temperature of 25-60 C., a plt of less than 4, and anode potential of at least +0À9 volts and a cathode potential more negative than +0À4 volts with reference to a saturated calomel electrode and an anode current density of at least 4 amps per sq. dm. until up to 80% of the phenol has been electrolyzed, and thereafter recovering the p-benzoquinone or hydroquinone from the aqueous solution. The anode used may be of lead, platinum, gold, graphite, manganese, chromium, iron or nickel; the cathode may be of lead; and the electrolyte may contain sulphate ions, e.g. as sulphuric acid or sodium sulphate. If used, the membrane may be of regenerated cellulose film. The cell may be operated continuously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59330966A | 1966-11-10 | 1966-11-10 | |
| US61645367A | 1967-02-16 | 1967-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1206797A true GB1206797A (en) | 1970-09-30 |
Family
ID=27081672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51120/67A Expired GB1206797A (en) | 1966-11-10 | 1967-11-09 | Electrochemical oxidation of phenol |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4839928B1 (en) |
| BE (1) | BE706285A (en) |
| CH (1) | CH479517A (en) |
| DE (1) | DE1643558C3 (en) |
| GB (1) | GB1206797A (en) |
| NL (1) | NL6715286A (en) |
| NO (1) | NO122189B (en) |
| SE (1) | SE355015B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD3967C2 (en) * | 2009-04-02 | 2010-05-31 | Институт Химии Академии Наук Молдовы | Electrochemical process for obtaining 7b,11-diacetoxy-drim-8-ene |
-
1967
- 1967-11-07 DE DE1643558A patent/DE1643558C3/en not_active Expired
- 1967-11-08 NO NO170448A patent/NO122189B/no unknown
- 1967-11-09 BE BE706285D patent/BE706285A/xx unknown
- 1967-11-09 GB GB51120/67A patent/GB1206797A/en not_active Expired
- 1967-11-10 NL NL6715286A patent/NL6715286A/xx unknown
- 1967-11-10 CH CH1569667A patent/CH479517A/en not_active IP Right Cessation
- 1967-11-10 JP JP42072025A patent/JPS4839928B1/ja active Pending
- 1967-12-09 SE SE15388/67A patent/SE355015B/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD3967C2 (en) * | 2009-04-02 | 2010-05-31 | Институт Химии Академии Наук Молдовы | Electrochemical process for obtaining 7b,11-diacetoxy-drim-8-ene |
Also Published As
| Publication number | Publication date |
|---|---|
| SE355015B (en) | 1973-04-02 |
| BE706285A (en) | 1968-05-09 |
| NO122189B (en) | 1971-06-01 |
| DE1643558C3 (en) | 1978-03-23 |
| DE1643558A1 (en) | 1971-07-01 |
| DE1643558B2 (en) | 1977-07-28 |
| CH479517A (en) | 1969-10-15 |
| NL6715286A (en) | 1968-05-13 |
| JPS4839928B1 (en) | 1973-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |