Electrolysis products in a system formed by Na/sub 2/SO/sub 4/ solution with Al (OH)/sub 3/ hydrogel

Journal Article · Fri Nov 01 04:00:00 EST 1985 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6860529

Epifanov, Y V; Kul'skii, L A; Matskevich, E S

This paper examines the dissolution of aluminum hydroxide gel on the electrolysis of aqueous electrolyte solutions and determine the compositions of the resulting compounds and the current yields. The authors used sodium sulfate to provide equivalent production of acid or alkali in the anode and cathode chambers. There is close correspondence between the anolyte and catholyte potentiometric and conductometric titration curves, which means that the methods can be used to analyze the electrolysis products in electrochemical coagulant regeneration. Data presented for determining the contents of the soluble aluminum compounds in the anolyte and catholyte in relation to the amount of electricity passed. It is shown that electrolysis in the system Na/sub 2/SO/sub 4/ solution + Al (OH)/sub 3/ hydrogel in a diaphragmed electrolyzer provides water-soluble aluminum compounds: aluminum sulfate as intermediate and basic salts in the anolyte and an alkaline solution of sodium aluminate in the catholyte.

• Research Organization: A.V. Dumanskii Institute of Colloid and Water Chemistry
• OSTI ID: 6860529
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:6,PT.1; ISSN JAPUA
• Country of Publication: United States
• Language: English

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520200* -- Environment
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54 ENVIRONMENTAL SCIENCES
ADSORBENTS
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM HYDROXIDES
ALUMINIUM SULFATES
AQUEOUS SOLUTIONS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CURRENT DENSITY
DISPERSIONS
ELECTRICAL PROPERTIES
ELECTROLYSIS
ELECTROLYTES
HYDROGEN COMPOUNDS
HYDROXIDES
KINETICS
LIQUID WASTES
LYSIS
MIXTURES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTITY RATIO
REACTION KINETICS
SODIUM COMPOUNDS
SODIUM SULFATES
SOLUTIONS
SULFATES
SULFUR COMPOUNDS
WASTE WATER
WASTES
WATER
WATER TREATMENT
YIELDS