International Harvester Company

Kerr-mcgee Chemical, LLC

Kerr-mcgee Corporation

Vernon D Gebben

Walter D Bruce

A method and apparatus for producing TiO.sub.2 by reacting O.sub.2 and TiCl.sub.4 in a reactor tube wherein pressure fluctuations in the flow of fluids through the reactor tube are sensed and output signals are generated proportional to the sensed pressure fluctuations. The flow of at least one of the TiCl.sub.4 or O.sub.2 is then varied through the reactor tube in response to predetermined pressure fluctuations so as to increase the efficiency of the reaction between TiCl.sub.4 and the O.sub.2. The efficiency of the reaction between O.sub.2 and TiCl.sub.4 in the reactor tube is achieved by a control apparatus operably connected to the reactor assembly which is capable of monitoring pressure fluctuations in TCl.sub.4 and O.sub.2 through the reactor assembly so that the flow of at least one of the TiCl.sub.4 or O.sub.2 can be varied in response to predetermined pressure fluctuations. The control apparatus includes a sensor assembly, a signal conditioning unit and a signal processing unit.

Method for enhancing production of titanium dioxide

A method and apparatus for producing TiO.sub.2 by reacting O.sub.2 and TICl.sub.4 in a reactor tube wherein pressure fluctuations in the flow of fluids through the reactor tube are sensed and output signals are generated proportional to the sensed pressure fluctuations. The flow of at least one of the TiCl.sub.4 or O.sub.2 is then varied through the reactor tube in response to predetermined pressure fluctuations so as to increase the efficiency of the reaction between TiCl.sub.4 and the O.sub.2. The efficiency of the reaction between O.sub.2 and TiCl.sub.4 in the reactor tube is achieved by a control apparatus operably connected to the reactor assembly which is capable of monitoring pressure fluctuations in TCl.sub.4 and O.sub.2 through the reactor assembly so that the flow of at least one of the TiCl.sub.4 or O.sub.2 can be varied in response to predetermined pressure fluctuations. The control apparatus includes a sensor assembly, a signal conditioning unit and a signal processing unit.

Method and apparatus for enhancing production of TiO.sub.2

A shaft torque measuring system comprising a transducer mounted on a slowly rotating shaft that produces an output voltage signal proportional to its torque; a voltage-to-current converter circuit for converting the output voltage signal from the sensor into a current signal; a brush and slip ring assembly for providing a means to transmit the current signal to a monitor station, and a voltage-to-current converter circuit for converting the current signal to a voltage signal which is proportional to the torque of the slowly rotating shaft.

Shaft torque measuring system

A non-contacting torque sensor is provided for measuring the torque of stationary and slowly rotating shafts. The torque sensor employs an oscillating thin-wall cylinder to produce a signal whose frequency is directly proportional to the torque applied to a shaft. Electromagnetic coils drive the cylinder at its natural frequency and sense its motion to produce a signal that is proportional to torque. Temperature and shaft bending effects are minimized by accordion folds integrally formed at the end portions of the oscillating cylinder.

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Oklahoma City, OK, United States of America

Vernon D Gebben