METHOD OF PROCESSING TITANIUM-SILICON CONTAINING CONCENTRATES WITH PRODUCTION OF ARTIFICIAL RUTILE Russian patent published in 2008 - IPC C22B34/12 C01G23/47 C22B3/12 

FIELD: metallurgy.

SUBSTANCE: method can be implemented in rare metals industry at processing of titanium-silicon containing concentrates for production of artificial rutile. The method includes mixing of concentrate with a leaching reagent, thermo treatment and leaching with creating of titanium dioxide sediment. At that mixing of the source concentrate is carried out with the use of concentrated solution of sodium hydroxide as a leaching reagent. Produced pulp is thermo treated by heating it at a rate of 5-8°C/min to a temperature of 480-520°C and successive conditioning at that temperature within 2.0-2.5 hrs. An immediate product of thermo treatment is subject to leaching.

EFFECT: reduction of power consumption and simplification of the process and process equipment at treatment of titanium-silicon containing concentrates.

4 cl, 1 ex