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Model 90 asphalt oxidizing reactor is designed expressly for the study of oxidation of asphalt at elevated temperatures for the manufacture of roofing materials.
Model 90 is an all stainless steel, approximately 4 inch internal diameter by approximately 18 inch tall, electrically heated reactor with a mixer, an efficient air sparger for maximum gas dispersion, and a bottom drain.
The reactor cover has provisions for venting the off-gases and for reactor loading. The sparger, thermocouple and mixer are removable from the reactor cover to facilitate cleaning. The bottom drain has a special ball valve trapping a minimum volume of reactants, allowing the full reactor charge to be efficiently mixed. The reactants are agitated by twin turbine mixers operated by a controllable variable speed motor. The electrically heated and insulated stainless reactor may be lifted from the stand for easier cleaning.
The reactants' temperature is controlled by a digital indicating, PID temperature controller. The operating temperature is up to 300°C. A temperature limit control is provided, preventing over heating. The airflow is controlled by a precision needle valve and measured by a rotary flowmeter capable of from 0 to 10 liters per minute of air. An air pressure regulator is also provided.
Specifications subject to change without notice.
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