CN101008086A (2006) Current Assignee  East China University of Science and Technology


Embodiment 1
All percentage compositions are the quality percentage composition among the embodiment.
With dull and stereotyped plumbous as cathode and anode, wherein the lead electrode usable floor area is 15cm 2(2.5 * 6cm).Make barrier film with ion-exchange membrane.Anolyte was 15% sulphuric acid soln for 250ml concentration when electrolysis began, and catholyte is 20% sodium sulfite solution and 5.0 gram Whitfield's ointments 'benzoic acid + salicylic acid) for 220ml concentration.Stir with magnetic stirring apparatus anticathode liquid.Institute's  current intensity  is 1.5A, and current density is 1000A/m 2The catholyte liquid temp is 20 ± 2 ℃.Be 1 hour 30 minutes actual conduction time.The electrolysis result is as follows:
    Bath voltage (V)     Gained salicylic aldehyde amount (g)     Current efficiency (%)     Yield (%)
Experiment 1     ?11.8     ?1.27     ?24.87     ?28.84
Experiment 2     ?12.0     ?1.24     ?24.22     ?28