RECOVERY OF PHOSPHORUS OXYCHLORID AND FERRIC CHLORIDE FROM MATERIALS CONTAINING FERRIC PHOSPHATE

Abstract

The invention relates to a process for obtaining phosphorus and iron compounds from materials containing iron phosphate, characterized in that: i) an iron phosphate-containing material reacts with gaseous chlorine in the presence of a carbon source at a temperature of 300 to 900 °C; and ii) the chlorophosphorus compounds formed, in particular phosphorus oxychloride and possibly… phosphorus trichloride and iron chloride, are extracted from the exhaust gas stream, and iii) the iron chloride and iv) the chlorophosphorus compounds are separated from the exhaust gas stream.