GB1188064A - Process for the Electrolytic Reduction of Aromatic Nitro Compounds - Google Patents
Process for the Electrolytic Reduction of Aromatic Nitro CompoundsInfo
- Publication number
- GB1188064A GB1188064A GB7807/68A GB780768A GB1188064A GB 1188064 A GB1188064 A GB 1188064A GB 7807/68 A GB7807/68 A GB 7807/68A GB 780768 A GB780768 A GB 780768A GB 1188064 A GB1188064 A GB 1188064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- catholyte
- electrolytic reduction
- electrolyte
- nitrotoluene
- 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
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/10—Moulds; Masks; Masterforms
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/08—Perforated or foraminous objects, e.g. sieves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
Abstract
1,188,064. Electrolytic reduction of nitro compounds. MILES LABORATORIES Inc. 16 Feb., 1968 [6 April, 1967], No. 7807/68. Heading C2C. [Also in Division C7] In a process for the electrolytic reduction of a reducible aromatic nitro compound comprising passing an electric current through a cell having an anode, a cathode, anolyte and catholyte baths separated by a semi-permeable membrane, and the compound to be reduced being present in the catholyte, hydrogen sulphide is passed through the catholyte bath. The reduction may be carried out either as a batch or as a continuous process. The anode may be of lead, platinum or carbon; and the cathode may be of silver, lead, titanium, molybdenum, " Hastelloy C " (Registered Trade Mark), which contains nickel, molybdenum, chromium, iron &c. or " Ni-O-Nel " (Registered Trade Mark). The electrodes may be in bar, rod or mesh form. Substances which may be reduced include nitrobenzene, i.e. to p-amino phenol, o-chloronitrobenzene, m - nitrotoluene, 2 - chloro - 2- nitrotoluene, o - ethylnitrobenzene, m - nitrodiphenyl amine, 5 - nitroisoquinoline, 2 - nitroparacymene and 2,5-dichloronitrobenzene. An organic acid may form the electrolyte and a surfactant, e.g. a quaternary tetra-alkyl ammonium chloride may be present in the bath. The electrolyte compartments may be provided with a reflux condenser, thermometer and mechanical stirring means. The membrane used may be of anionic or cationic exchange resin of porous ceramic material which may be impregnated with resin. Examples of membranes which may be used appear in the Specification. The cell may be of batch-type or of continuous flow type in which pumps may be provided to force electrolyte past planar electrode surfaces. The nitrobenzene, for instance, may be added to the cell only after the temperature thereof and electric current have been established at the working condition of the cell.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62883167A | 1967-04-06 | 1967-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1188064A true GB1188064A (en) | 1970-04-15 |
Family
ID=24520487
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27542/45A Expired GB600873A (en) | 1967-04-06 | 1945-10-19 | Improvements in or relating to the manufacture of thin copper articles |
| GB7807/68A Expired GB1188064A (en) | 1967-04-06 | 1968-02-16 | Process for the Electrolytic Reduction of Aromatic Nitro Compounds |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27542/45A Expired GB600873A (en) | 1967-04-06 | 1945-10-19 | Improvements in or relating to the manufacture of thin copper articles |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3475299A (en) |
| BE (1) | BE712713A (en) |
| FR (2) | FR948632A (en) |
| GB (2) | GB600873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172899A (en) * | 1985-03-29 | 1986-10-01 | Ppg Industries Inc | Production of para-aminophenol |
| US11439950B2 (en) | 2018-07-02 | 2022-09-13 | Universiity of Kentucky Research Foundation | Electrochemical cell, method and apparatus for capturing carbon dioxide from flue gas and decomposing nitrosamine compounds |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125445A (en) * | 1977-05-20 | 1978-11-14 | Hercules Incorporated | Electroreduction of nitrate esters |
| JPS59222592A (en) * | 1983-05-31 | 1984-12-14 | Takeda Chem Ind Ltd | Production of p-aminobenzoyl glutamic acid |
| US4609439A (en) * | 1985-10-07 | 1986-09-02 | Texaco Inc. | Means and method for the electrochemical reduction of a nitroaromatic to provide a dye |
| US4764263A (en) * | 1987-05-18 | 1988-08-16 | The Dow Chemical Company | Electrochemical synthesis of substituted aromatic amines in basic media |
| AU627597B2 (en) * | 1990-07-06 | 1992-08-27 | Tube Technology Pty Ltd | Contouring of copper sheet |
| CN105073692B (en) * | 2012-10-17 | 2017-09-12 | 3M创新有限公司 | Prepare α, the method for ω diiodo perfluo alkane |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103473A (en) * | 1963-09-10 | Method for the electrochemical reduction of compounds | ||
| US1239822A (en) * | 1916-10-27 | 1917-09-11 | Chem Ind Basel | Process for the manufacture of aromatic amino-oxy-compounds. |
| US3338806A (en) * | 1961-08-21 | 1967-08-29 | Continental Oil Co | Process of preparing p-aminophenol by electrolytically reducing nitrobenzene |
-
1945
- 1945-10-19 GB GB27542/45A patent/GB600873A/en not_active Expired
-
1947
- 1947-06-28 FR FR948632D patent/FR948632A/en not_active Expired
-
1967
- 1967-04-06 US US628831A patent/US3475299A/en not_active Expired - Lifetime
-
1968
- 1968-02-16 GB GB7807/68A patent/GB1188064A/en not_active Expired
- 1968-03-22 FR FR1559987D patent/FR1559987A/fr not_active Expired
- 1968-03-25 BE BE712713D patent/BE712713A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172899A (en) * | 1985-03-29 | 1986-10-01 | Ppg Industries Inc | Production of para-aminophenol |
| GB2172899B (en) * | 1985-03-29 | 1989-06-28 | Ppg Industries Inc | Production of para-aminophenol |
| US11439950B2 (en) | 2018-07-02 | 2022-09-13 | Universiity of Kentucky Research Foundation | Electrochemical cell, method and apparatus for capturing carbon dioxide from flue gas and decomposing nitrosamine compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1559987A (en) | 1969-03-14 |
| GB600873A (en) | 1948-04-21 |
| FR948632A (en) | 1949-08-05 |
| BE712713A (en) | 1968-07-31 |
| US3475299A (en) | 1969-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |