REACTOR Russian patent published in 2005 - IPC

FIELD: processes of fluoride technology in reworking titanium-containing raw material, for example, ilmenite concentrates in production of titanium dioxide.

SUBSTANCE: proposed reactor has housing made in form of body of revolution, reaction component mixing unit, heating unit located outside the reactor, solid reaction component loading unit, reaction product unloading unit, reagent supply unit and gas discharge branch pipe. Reaction component mixing unit is made in form of drive for rotation of reactor housing; it is made in form of truncated cone at inclination of generatrix to longitudinal axis of housing up to 10° which is mounted for rotation about longitudinal axis which forms lesser angle of inclination of generatrix to longitudinal axis of housing towards reaction product unloading unit; solid reaction component loading unit is made in end part of reactor housing with lesser transversal sizes and reaction product unloading unit is made in opposite end part of reactor housing. Reactor cavity is divided into two reaction zones which are heat-insulated relative to each other. Reaction zone adjoining solid reaction component loading unit is provided with coat made from material resistant to action of fluoride-containing materials which retains strength at temperature of not below 400°C, for example magnesium; reaction zone adjoining the reaction product unloading unit is provided with coat made from material retaining strength at temperature not below 900°C, preferably from silicon oxide; besides that, reactor is hermetic and is connected with vapor source. External envelope of reactor consists of two parts whose length is equal to length of respective reaction zones; they are made from heat-resistant structural materials which are resistant to action of fluoride-containing materials and are heat-conducting, for example metal alloys. Parts of reactor external envelope are rigidly and hermetically interconnected and are heat-insulated relative to each other. Proposed reactor has increased serviceability at pyrohydrolysis of ammonium oxofluorotitaniums at simultaneous obtaining titanium dioxide of high degree of whiteness.

EFFECT: enhanced reliability and serviceability of reactor.

5 cl, 1 dwg