Thermocatalytic reactor and process for producing same

Details Thermocatalytic reactor and process for producing same Thermocatalytic reactor and process for producing same

1982-02-05

1983-05-03

Chin, Peter

Paper making and fiber liberation

Processes and products

Mineral fiber

1621814, 1621816, 162183, 162228, 252477R, D21H 518, D21J 700

Patent

active

043819702

ABSTRACT:
The present invention contemplates a process for producing a reactor cylinder for use in a radiant heater and the reactor cylinder produced by that process. A liquid vehicle is initially prepared including an alumina dispersion, magnesium sulfate, colloidal silica and powdered talc. An antifoam agent may be added. The alumina dispersion includes dispersable alumina in an amount between about 1% and about 5% by weight, an acid in an amount up to about 0.2% by weight and water in an amount between about 10% and about 30% by weight, all calculated as weight precent based on the weight of the liquid vehicle. The alumina dispersion is then further diluted by the addition of water in an amount between about 40% and about 80% by weight. To the diluted alumina dispersion is added magnesium sulfate in an amount up to about 4% by weight, colloidal silica in an amount up to about 10% by weight and powdered talc in an amount between about 0.0001% and about 0.1% by weight. A solid alumina and silica fiber composition is then added to the vehicle in a ratio of about 10 grams of solid fiber per gallon of vehicle. The mixture or slurry is then chopped, blended and vacuum molded about a mandrel to form the reactor cylinder.

REFERENCES:
patent: 3275497 (1966-09-01), Weiss et al.
patent: 3383159 (1968-05-01), Smith
patent: 3697447 (1972-10-01), Bettinardi
patent: 4041199 (1977-08-01), Cartwright

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