GB856436A - Electro chemical process for the manufacture of p-aminophenol - Google Patents

Electro chemical process for the manufacture of p-aminophenol

Info

Publication number
GB856436A
GB856436A GB31466/57A GB3146657A GB856436A GB 856436 A GB856436 A GB 856436A GB 31466/57 A GB31466/57 A GB 31466/57A GB 3146657 A GB3146657 A GB 3146657A GB 856436 A GB856436 A GB 856436A
Authority
GB
United Kingdom
Prior art keywords
stannous
aminophenol
catholyte
stannous ions
cathode
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
Application number
GB31466/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Corp
Original Assignee
Miles Laboratories Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miles Laboratories Inc filed Critical Miles Laboratories Inc
Publication of GB856436A publication Critical patent/GB856436A/en
Expired legal-status Critical Current

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
    • C25B3/25—Reduction
    • 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
    • C25B3/01—Products
    • C25B3/07—Oxygen containing compounds
    • 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
    • C25B3/01—Products
    • C25B3/09—Nitrogen containing compounds

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

856,436. Electrolytic preparation of p-aminophenol. MILES LABORATORIES Inc. Oct. 8, 1957 [Oct. 31, 1956], No. 31466/57. Class 41 In a process for the preparation of p-aminophenol by the electrochemical re-arrangement of nitrobenzene by the use of electrolysis and in the presence of sulphuric acid, the electrochemical reaction is effected in the presence of stannous ions. The stannous ions may be added either in the form of a stannous salt, or reducible stannic salt or a tin coating on the cathode which dissolves in the catholyte and is subsequently reduced to stannous ions. The stannous ions catalyze the reaction so as to result in greatly improved yields of p-amino-phenol. As shown an electrolytic cell comprises a lead anode 3, surrounded by a porous cup 2, a cathode 5 consisting of a copper mesh screen, anolyte 4 and catholyte 6. Specified anolytes are sulphuric acid solution, hydrochloric acid solution, phosphoric acid solution and sodium sulphate solution. The catholyte consists of a mixture of nitrobenzene, sulphuric acid and water. Specified tin salts and other sources of stannous ions which may be used are stannous chloride, bromide, nitrate, and sulphate and stannic chloride, bromide, sulphate and phosphate, stannous oxide and stannic oxide. Examples describe the carrying out of the process using stannous chloride of a tin-plated cathode.
GB31466/57A 1956-10-31 1957-10-08 Electro chemical process for the manufacture of p-aminophenol Expired GB856436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61948756A 1956-10-31 1956-10-31

Publications (1)

Publication Number Publication Date
GB856436A true GB856436A (en) 1960-12-14

Family

ID=24482121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31466/57A Expired GB856436A (en) 1956-10-31 1957-10-08 Electro chemical process for the manufacture of p-aminophenol

Country Status (4)

Country Link
CH (1) CH368192A (en)
DE (1) DE1066589B (en)
FR (1) FR1185024A (en)
GB (1) GB856436A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614044B1 (en) * 1987-04-16 1991-05-10 Air Liquide PROCESS FOR ELECTRO-REDUCTION OF ALIPHATIC NITERIUM DERIVATIVES

Also Published As

Publication number Publication date
CH368192A (en) 1963-03-31
FR1185024A (en) 1959-07-29
DE1066589B (en) 1959-10-08

Similar Documents

Publication Publication Date Title
ES268960A1 (en) Electrolytic process for production of chlorine and caustic
ES466797A1 (en) Process for producing sodium hypochlorite
GB1364939A (en) Process for the electrolytic preparation of glycolxylic acid
Raijola et al. Low valent aluminum as a product of anodic oxidation in aqueous solution
GB752901A (en) Method of producing an electroplate of nickel on magnesium and the magnesium-base alloys
GB856436A (en) Electro chemical process for the manufacture of p-aminophenol
GB845511A (en) Improvements relating to the production of metal hydroxides
JPS52131528A (en) Production of glutathione of reduced type
GB1337457A (en) Process for the preparation of saligenol by electrochemical reduction
JPS55148778A (en) Manufacture of caustic alkali used ion exchange membrane
GB697196A (en) Improvements in or relating to electroplating of basis metal with zinc
GB938206A (en) Process for the production of purest indium
US2561656A (en) Electrolytic production of polyhydric alcohols
GB1274304A (en) Process for the electrolytic manufacture of sulphoxides
GB774709A (en) Process for removing arsenic compounds from phosphoric acid
JPS5261200A (en) Process for electrolysis of ion exchange membrane type
GB747772A (en) Process for production of manganese metal and chlorine
GB834910A (en) Improvements in the electrolytic manufacture of cysteine hydrochloride
GB1349043A (en) Process for the preparation of 6-demethyl-6-deoxy-6-methylene tetracyclines
GB841456A (en) Electrolytic process for making periodic acid solutions
GB648764A (en) Electrolytic preparation of quinolinic acid
ES280122A1 (en) Procedure for the direct and simultaneous production of inorganic salts of alkaline metals, chlorine gas and cathodic products (Machine-translation by Google Translate, not legally binding)
ES251537A1 (en) Procedure to produce dihydrodesoxistreptomycines (Machine-translation by Google Translate, not legally binding)
GB764068A (en) Improvements in electrolytic processes
GB1206797A (en) Electrochemical oxidation of phenol