Chemistry: electrical and wave energy – Processes and products
Patent
1989-09-12
1990-12-11
Tung, T.
Chemistry: electrical and wave energy
Processes and products
204129, C25B 102, C25B 114
Patent
active
049768352
ABSTRACT:
An aqueous sulfuric acid anolyte solution is circulated through the anode compartment of an electrolytic cell, and an aqueous NaHSO.sub.3 catholyte solution is circulated through its cathode compartment, while maintaining an anolyte and catholyte temperature range of 20.degree.-25.degree. C., a catholyte pH range of 4.6 to 5.8, and a reduction potential of -1.25 to -1.50 V versus Ag.degree./AgCl, to produce an aqueous solution of Na.sub.2 S.sub.2 O.sub.4. Optimum pH is maintained by small additions of an alkali to the catholyte solution for electrolysis and solution stability.
REFERENCES:
patent: 3748238 (1973-07-01), Heit et al.
patent: 3905879 (1975-09-01), Eng et al.
patent: 3920551 (1975-11-01), Cook et al.
patent: 4144146 (1979-03-01), Leutner et al.
patent: 4743350 (1988-05-01), Cawlfield et al.
Diaddario, Jr. Leonard L.
Schroeder Mark A.
Hoechst Celanese Corporation
Ryser David G.
Tung T.
LandOfFree
Electrosynthesis of sodium dithionite does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrosynthesis of sodium dithionite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrosynthesis of sodium dithionite will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-388114