Production of material consisting of solid hollow spheroids

Details Production of material consisting of solid hollow spheroids Production of material consisting of solid hollow spheroids

1976-09-03

1978-03-07

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252477R, 4232135, 423628, B01J 2906

Patent

active

040779084

ABSTRACT:
Production of solid, hollow and spheroidic material for use as a carrier supporting motor exhaust gas decontamination catalysts. To this end, spheroidal particles of material being oxidizable and/or low melting and/or soluble in organic solvents are placed on to a pelletizing table. Ceramic pulverulent material is distributed thereover and a aqueous cellulose ether solution is simultaneously sprayed thereonto to cause deposition of the ceramic material on the particles. The resulting pellets are dried at 20.degree. - 95.degree. C and freed from material being oxidizable and/or low melting and/or soluble in organic solvents, and finally calcined at 1000.degree. - 1500.degree. C.

REFERENCES:
patent: 2553759 (1951-05-01), Geiger
patent: 3035301 (1962-05-01), Rodis et al.
patent: 3467602 (1969-09-01), Koester
patent: 3869410 (1975-03-01), Bunda et al.

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