Process for producing an aqueous solution comprising ferric chlo

Details Process for producing an aqueous solution comprising ferric chlo Process for producing an aqueous solution comprising ferric chlo

1997-07-11

1999-08-10

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

4231503, 423 79, C01G 902

Patent

active

059355450

ABSTRACT:
The present invention provides a process for preparing an aqueous solution of FeCl.sub.3. The process involves the steps of: (a) reacting an ore material comprising titanium and iron with chlorine and coke to form a metal chloride vapor stream comprising titanium tetrachloride, ferrous chloride, ferric chloride and unreacted coke and ore solids; (b) cooling the metal chloride vapor stream to a temperature in the range of 350 to 500.degree. C. to condense at least some of the ferrous chloride; (c) separating the condensed ferrous chloride and the unreacted coke and ore solids from the metal chloride vapor stream; (d) cooling the metal chloride vapor stream to a temperature in the range of 180 to 240.degree. C. to form a precipitate comprising ferric chloride; and (e) adding the precipitate to water to form an aqueous solution comprising ferric chloride. The resulting aqueous solution has a high FeCl.sub.3 content, and can be used in wastewater treatment applications.

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