High surface area ThO.sub.2 catalyst and method of preparing it

Details High surface area ThO.sub.2 catalyst and method of preparing it High surface area ThO.sub.2 catalyst and method of preparing it

1983-06-21

1985-07-30

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502300, 423252, B01J 2312, B01J 2304

Patent

active

045322309

ABSTRACT:
A ThO.sub.2 catalyst having a high surface area of about 80-125 m.sup.2 /g is synthesized. The compound is synthesized by simultaneously mixing an aqueous solution of ThNO.sub.3 (NO.sub.3).sub.4.4H.sub.2 O with an aqueous solution of Na.sub.2 CO.sub.3.H.sub.2 O, to produce a solution and solid ThOCO.sub.3. The solid ThOCO.sub.3 is separated from the solution, and then calcined at a temperature of about 225.degree.-300.degree. C. for about 40-55 hours to produce ThO.sub.2. The ThO.sub.2 catalyst produced includes Na present as a substitutional cation in an amount equal to about 5-10 atom percent.

REFERENCES:
patent: 3214238 (1965-10-01), Rombau et al.
patent: 3370016 (1968-02-01), Briggs
patent: 3666426 (1972-05-01), Burkhardt
Pichler et al., Brennstoff-Chemie, 30, (1949), pp. 13-23.

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