TH12759A - Methods for pre-action of activated carbon - Google Patents

Abstract

The invention involves a process for the pre-action of activated carbon. It can be used especially for the purification of concentrated saline solutions.

Claims (5)

1. The process for pre-action of activated carbon defines a unique characteristic:, prior to its use, it acts on the activated carbon with a concentrated solution of ferric chloride salts in the acidified water. With a pH less than or equal to 3 until the reducing properties of the activated carbon on ferric ions are gone. 2. Process according to claim 1, special feature is performed with a concentrated saline solution. At a concentration of 28% by weight in water 3. Process according to claim 1 or no. 2, specifying a special characteristic is that the concentration of FeCl3 is at least 3 g / l. 4. The process according to claim 3, specifies that the concentration of FeCl3 is at least 5 g / l. 5. Methods for the purification of saline solution, characterizing Special is The activated carbon is preceded by a concentrated solution of Ferric salt Chloride in water is acidified with a pH less than or equal to 3 until the reducing properties of the activated carbon on ferric ions are depleted.