Recovery of acids and sodium hydroxide from solutions of sodium sulfate and sodium chloride with the use of bipolar membranes

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:7247207

Bobrinskaya, G A; Pavlova, T V; Shatalov, A Ya

The authors examined the kinetic laws governing the electrodialysis recovery of hydrochloric acid and sulfuric acid, as well as sodium hydroxide, from 1M sodium chloride and 0.5 M sodium sulfate solutions and from a mixture of these salts with the use of the MB-1, MB-2, and MB-3 bipolar membranes. Kinetic plots of the current density and the concentration of the acid and the base in the chambers next to the bipolar membranes during the electrodialysis treatment of 1M sodium chloride, 0.5 M sodium sulfate, and solutions are presented. It was established that it is better to use the MB-3 membrane for the electrodialysis conversion of sodium chloride and sodium sulfate into acids and sodium hydroxide owing to the high rate and current efficiency and low expenditure of electrical energy and degree of contamination of the products obtained by the salts. It was also established that the resistance of the MB-1 and MB-2 bipolar membranes is almost an order of magnitude higher than that of the MB-3 membrane.

• OSTI ID: 7247207
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:4,PT.1; ISSN JAPUA
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
ALKALI METAL COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DIALYSIS
EFFICIENCY
ELECTROCHEMISTRY
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ENERGY EFFICIENCY
HALIDES
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HYDROCHLORIC ACID
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HYDROXIDES
INDUSTRIAL WASTES
INORGANIC ACIDS
KINETICS
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MANAGEMENT
MATERIALS RECOVERY
MEMBRANES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
PROCESSING
REACTION KINETICS
RECOVERY
SEPARATION PROCESSES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER POLLUTION ABATEMENT
WATER TREATMENT