PDF Publication Title:
Text from PDF Page: 074
62 THE MANUFACTURE OF CHEMICALS BY ELECTEOLYSIS employed as anode, and in this was a porous pot which contained a perforated cylindrical copper cathode and a suitable stirrer. Into the cathode chamber one or more rods of lead extended. The anode liquid was 30 per cent, sulphuric acid and the cathode mixture was composed of 25 litres sulphuric acid (15° B.) and 6 kgs. of nitro-benzene. The working temperature was 80-95°C. and a current 2 density of 3 amps, per dm. was employed at a pressure of 3'5 volts. The aniline formed simultaneously can be removed by adding lime, and steam-distilling the mixture. After filtering calcium sulphate from the residue, crystals of aminophenol can be obtained by evaporation. The average yield is reported to be 50 per cent, of the nitrobenzene used. In conclusion, the following reductions should be noticed: Primary and secondary hydrazines can be formed satis- 1 factorily by reduction of nitroamines. Boehringer and Sohne employ cathodes of tin, or copper coated with tin, for reducing nitro-guanidine to amino- 2 guanidine. The reduction of nitro-derivatives of naphthalene, an- thracene, and phenanthrene has been investigated by J. 3 Moller. Oximes can be reduced to amines iji 50 per cent. 1 2 3 10, 199,222. 4 D.B.P. 141346(1903). 4 N. J. Baoker,Bee.Trav.Chim.,1912,31,1,142; 1913,32,89. D.E.P. 167637(1912). Zeitsch. EleJstrochem., 1901, 7, 741, 797; EUUrochem. Zeitsch., 1904,PDF Image | MANUFACTURE OF CHEMICALS BY ELECTROLYSIS
PDF Search Title:
MANUFACTURE OF CHEMICALS BY ELECTROLYSISOriginal File Name Searched:
the_manufacture_of_chemicals_by_electrolysis.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Power up your energy storage game with Salgenx Salt Water Battery. With its advanced technology, the flow battery provides reliable, scalable, and sustainable energy storage for utility-scale projects. Upgrade to a Salgenx flow battery today and take control of your energy future.
| CONTACT TEL: 608-238-6001 Email: greg@salgenx.com | RSS | AMP |