Hydrous composite cerium-phosphorus oxide for immobilization of

Details Hydrous composite cerium-phosphorus oxide for immobilization of Hydrous composite cerium-phosphorus oxide for immobilization of

1995-03-14

1996-11-12

Langel, Wayne

Liquid purification or separation

Processes

Ion exchange or selective sorption

423263, C01F 1700, C02F 142

Patent

active

055736734

ABSTRACT:
Disclosed is a novel hydrous composite oxide of cerium (IV) and phosphorus characterized by the specified chemical composition and the unique X-ray diffractometric pattern, which is useful as an adsorbent or immobilizing agent of strontium ions in an aqueous solution such as radioactive wastes from atomic power plants. The composite oxide prepared by the precipitation reaction of a Ce (IV) salt in an aqueous solution and phosphoric acid can be imparted with an increased adsorption capacity for strontium ions when the precipitates are heat-treated under hydrothermal conditions at up to 300.degree. C. Immobilization of strontium ions adsorbed on the adsorbent can be more complete when the adsorbent bearing strontium ions is dried and subjected to a heat treatment at a temperature of 200.degree. C. or higher.

REFERENCES:
patent: 2449050 (1948-09-01), Bond et al.
patent: 2943059 (1960-06-01), Beck et al.
patent: 3615807 (1971-10-01), Yates
patent: 5085845 (1992-02-01), Ueda et al.
Chemical Abstracts citation 91:142687g (1979).

Affiliated with

Also associated with

Rating

Hydrous composite cerium-phosphorus oxide for immobilization of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrous composite cerium-phosphorus oxide for immobilization of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrous composite cerium-phosphorus oxide for immobilization of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-560012