Method for increasing the molar ratio of aluminum to chlorine in

Chemistry: electrical and wave energy – Processes and products

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C25B 126

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active

052542246

ABSTRACT:
Disclosed is a method for increasing the molar ratio of aluminum to chlorine in a polyaluminum chloride solution by the electrochemical dissolving of aluminum, including contacting a polyaluminum chloride solution having a molar ratio of aluminum to chlorine of equal to or greater than 0.5 with a galvanic element. The galvanic element includes metallic aluminum and an electrochemically more noble metal. Contact is maintained until the aluminum to chlorine ratio is increased to the desired level.

REFERENCES:
patent: 3240687 (1966-03-01), Konig
patent: 3767549 (1973-10-01), Sasaki
patent: 3953584 (1976-04-01), Danner
patent: 4053570 (1977-10-01), Merkl
patent: 4203812 (1980-05-01), Bergner

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