Production of concentrated aqueous solutions of ferric chloride

Details Production of concentrated aqueous solutions of ferric chloride Production of concentrated aqueous solutions of ferric chloride

1993-03-15

1995-10-03

Straub, Gary P.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

C01G 4910

Patent

active

054550173

ABSTRACT:
35% to 45% by weight concentrated aqueous solutions of ferric chloride, directly useful as flocculating agents in a variety of water treatments, are prepared by (a) reacting chlorine with an aqueous solution of ferrous chloride, in the presence of a recycled aqueous solution of ferric chloride; (b) decompressing the step (a) reaction product solution to vaporize water therefrom, thereby concentrating same; and (c) recycling a fraction of the decompressed liquid phase to step (a) and recovering remaining fraction as final product aqueous solution of ferric chloride.

REFERENCES:
patent: 1054400 (1913-02-01), Dow et al.
patent: 1969793 (1934-08-01), Hechenbleikner
patent: 2096855 (1937-10-01), Ladd
Translation of JP 49-113798, (1974) No Month Available.
Perry, Chemical Engineers Handbook, 3d, p. 510 (1950). No Available Mo.

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