Electrodialysis Production of Hypophosphorous Acid with Ti-PbO2 Anode

Ai Hong Guo; Xue Jiao Tang; Bao Gui Zhang

doi:10.4028/www.scientific.net/AMR.178.133

Paper Titles

Effects of Heat Treatment on Crystal Structure and Reactivity of Sericite
p.113

Nonstoichiometric Lithium Iron Phosphate Synthesized by Hydrothermal Route
p.118

Effects of Wet Grinding Process on the Properties of the Ground Diatomite Particles
p.124

Electric Dipole Characteristics of Mineral Tourmaline Superfine Powders and its Properties of Far Infrared Emission
p.129

Electrodialysis Production of Hypophosphorous Acid with Ti-PbO₂ Anode
p.133

Enhanced Coagulation on Micro-Polluted Raw Water by Attapulgite Clay and PAC Combination Process
p.137

Enhancement of Electrochemical Performance of Li₄Ti₅O₁₂/C Composite Prepared by Sol-Gel Method
p.143

Environmental-Friendly Soy Protein Isolate/Poly(Vinyl Alcohol) Blend Films: Biodegradation Behaviors
p.151

Hydrophobic Ceramic Surface by Sol-Gel Method
p.156

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 178Electrodialysis Production of Hypophosphorous Acid...

Electrodialysis Production of Hypophosphorous Acid with Ti-PbO₂ Anode

Abstract:

It is a method of preparing hypophosphorous acid with electrodialysis. It comprises Ti-PbO2 anode, an insoluble cathode and an aqueous solution of hypophosphite anions in six-compartment electrolytic cell. The direct current, through the insoluble anode to cathode in electrical contact with the aqueous solution to generate H+, forms hypophosphorous acid solution. In this paper, the best term of different factors about the experiment was studied. The best condition was to keep the NaH2PO2 concentration between 300 and 500g/L, current value 3.0A, reaction time 12-18 h. The process is simple, low cost and highly efficient, which is a cleaner production without waste residue and waste water.