Process for recovery of iron oxide and chlorine from dust produced in chlorination of titaniferous ores

A multistage process for recovering gaseous chlorine and solid ferric oxide from chlorinator dust, said dust produced in the chlorination of titaniferous ores and comprising particulate ferrous chloride plus contaminates, said process comprising the steps of:

• (a) reacting said chlorinator dust at temperatures of from 500.degree. to 800.degree. C. with oxygen in an amount sufficient only to form solid materials consisting essentially of particulate ferric oxide and gases consisting essentially of varporous ferric chloride;
• (b) separating the solid materials including the particulate ferric oxide from the gases produced in step a while maintaining the temperature in the range from 500.degree. to 800.degree. C.;
• (c) reacting the vaporous ferric chloride produced in step a with additional oxygen to form particulate ferric oxide and gases consisting essentially of gaseous chloride, the reaction in stage c being initiated at temperature from 600 .degree. to 800.degree. C. followed by gradual lowering of the temperature to below 600.degree. C.;
• and then (d) separating the particulate ferric oxide from the gases produced in stage c.