论文部分内容阅读
一、引言电解法生产H_O_2一般采用铂为阳极,铅为阴极,以硫酸铵、硫酸溶液为电解液,阳极产物过硫酸铵水解即得。在简化考虑时,整个电解反应的理论槽电压为2.3伏。由于阳极、阴极反应的过电位、溶液和隔膜等的欧姆电位降的存在,在一般工业条件下〔电解液为每升300gH_SO_4+200g(NH_4)_2SO_4,阳极电流密度0.4～0.5A/M~2,阴极电流密度0.02～0.03A/M~2〕,电解槽的实际槽压达到5～5.8伏。由此看出电解过程的能量有一大半浪费了。由于阳
I. Introduction Electrolytic production of H_O_2 generally use platinum as the anode, lead as the cathode, with ammonium sulfate, sulfuric acid solution as the electrolyte, the anodic hydrolyzate obtained ammonium sulfate. When simplified, the theoretical cell voltage for the entire electrolysis reaction is 2.3 volts. Due to the existence of anodic and cathodic reaction overpotential, solution and membrane ohmic potential drop under the general industrial conditions [electrolyte is 300gH_SO_4 + 200g (NH_4) _2SO_4 per liter, the anode current density is 0.4 ~ 0.5A / M ~ 2 , The cathode current density of 0.02 ~ 0.03A / M ~ 2〕, the actual tank pressure reached 5 ~ 5.8 volts. This shows that the energy of the electrolysis process has more than half of the waste. Because of the sun