GB1411371A - Electrolytic reduction of oxalic acid to glyxylic acid - Google Patents
Electrolytic reduction of oxalic acid to glyxylic acidInfo
- Publication number
- GB1411371A GB1411371A GB3384971A GB3384971A GB1411371A GB 1411371 A GB1411371 A GB 1411371A GB 3384971 A GB3384971 A GB 3384971A GB 3384971 A GB3384971 A GB 3384971A GB 1411371 A GB1411371 A GB 1411371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxalic acid
- acid
- cathode
- catholyte
- glyoxylic
- 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
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 title abstract 42
- 235000006408 oxalic acid Nutrition 0.000 title abstract 14
- 239000002253 acid Substances 0.000 title 1
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 abstract 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 229910002804 graphite Inorganic materials 0.000 abstract 3
- 239000010439 graphite Substances 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052745 lead Inorganic materials 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910000497 Amalgam Inorganic materials 0.000 abstract 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract 1
- 229910000792 Monel Inorganic materials 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000005341 cation exchange Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000003115 supporting electrolyte Substances 0.000 abstract 1
- 229910052716 thallium Inorganic materials 0.000 abstract 1
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
- C25B3/25—Reduction
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1411371 Electrolytically preparing glyoxylic acid and electrolytically removing oxalic acid therefrom NATIONAL RESEARCH DEVELOPMENT CORP 13 Oct 1972 [19 July 1971] 33849/71 Heading C7B [Also in Division C2] Glyoxylic acid is electrolytically prepared by cathodic reduction of oxalic acid at a solid cathode with a catholyte which is substantially free from supporting electrolyte, the process being such that over-reduction of the oxalic acid to glycollic acid is substantially avoided (e.g. by cooling the catholyte or cathode). Specified conditions are:- a catholyte comprising a saturated or supersaturated solution of oxalic acid in water or aqueous ethanol; an anolyte comprising an aqueous solution of H 2 SO 4 , HClO 4 or H 3 PO 4 ; the anolyte and catholyte separated by a permeable or semi-permeable membrane, e.g. a cation exchange membrane; a cathode of Pb, Cd, Tl or of various Hg amalgams; an anode of Pb, graphite, Pt, or platinized Ti; a temperature of not greater than 20 C (e.g. obtained by circulating water within the cathode); and a cathode potential not more negative than - 1.50v with reference to a saturated calomel electrode. When the process is stopped, any remaining oxalic acid can be removed from the resultant solution containing oxalic acid and glyoxylic acid by selective precipitation as the Ca salt or by anodic oxidation. For this removal of oxalic acid, specified conditions are:- a catholyte of H 2 SO 4 , HClO 4 or H 3 PO 4 ; a cathode of C, Cu, Pb, Monel (Trade Mark) metal, Ni or Pt; and an anode of graphite such as a fluidized bed or packed, e.g. bipolar, bed. The anodic oxidation converts the oxalic acid to CO 2 but the bipolar bed also converts a proportion of the oxalic acid to glyoxylic acid. In one alternative, the two stages for the production of pure glyoxylic acid are combined. A cell is used having a Pb cathode, a graphite anode, as catholyte an aqueous solution of oxalic acid, and as anolyte an aqueous solution of glyoxylic acid containing traces of oxalic acid which has been produced in the electro-reduction of oxalic acid. After operation, the anolyte is removed to be worked up for glyoxylic acid, the catholyte transferred to the anode compartment and the cathode compartment is charged with fresh oxalic acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3384971A GB1411371A (en) | 1971-07-19 | 1971-07-19 | Electrolytic reduction of oxalic acid to glyxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3384971A GB1411371A (en) | 1971-07-19 | 1971-07-19 | Electrolytic reduction of oxalic acid to glyxylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1411371A true GB1411371A (en) | 1975-10-22 |
Family
ID=10358252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3384971A Expired GB1411371A (en) | 1971-07-19 | 1971-07-19 | Electrolytic reduction of oxalic acid to glyxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1411371A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5474658A (en) * | 1992-02-22 | 1995-12-12 | Hoechst Ag | Electrochemical process for preparing glyoxylic acid |
| CN113789529A (en) * | 2021-09-03 | 2021-12-14 | 浙江工业大学 | Synthesis method for photoelectrocatalytic oxidation of glyoxal into glyoxylic acid |
-
1971
- 1971-07-19 GB GB3384971A patent/GB1411371A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5474658A (en) * | 1992-02-22 | 1995-12-12 | Hoechst Ag | Electrochemical process for preparing glyoxylic acid |
| CN113789529A (en) * | 2021-09-03 | 2021-12-14 | 浙江工业大学 | Synthesis method for photoelectrocatalytic oxidation of glyoxal into glyoxylic acid |
| CN113789529B (en) * | 2021-09-03 | 2022-11-25 | 浙江工业大学 | A kind of synthesis method that glyoxal is photocatalytically oxidized to glyoxylic acid |
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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 |