Process for the selective removal of arsenic in the course of th

Details Process for the selective removal of arsenic in the course of th Process for the selective removal of arsenic in the course of th

1982-07-19

1983-12-27

Kyle, Deborah L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 17, 423 87, C22B 6002, C22B 3004

Patent

active

044230109

ABSTRACT:
A process for the selective removal of arsenical materials, in the course of a continuous hot oxidizing attack process, comprising attacking a uraniferous ore containing arsenical materials as impurities in the presence of an oxidizing agent in the reaction medium by means of an aqueous liquor formed by a recycling solution containing alkali metal carbonate and bicarbonate, and uranium close to the limit of solubility thereof, under concentration, temperature and pressure conditions which causes solubilization of the uranium present in the ore, and re-precipitation thereof in the attack medium, then collecting a suspension of a solid phase in a liquid phase which, after cooling, is subjected to a separation operation, recycling the liquid phase to the attack operation, and treating the separated solid phase by means of an aqueous liquor to re-dissolve the precipitated uranium which is characterized in that the arsenic which is solubilized in the attack operation is extracted by means of a magnesium compound which is introduced in an amount which is at least equal to the stoichiometric amount required to cause precipitation of magnesium arsenate.

REFERENCES:
patent: 2199696 (1940-05-01), Fleck
patent: 2951741 (1960-09-01), Sill
patent: 4272440 (1981-06-01), Sefton et al.
patent: 4366128 (1982-12-01), Weir et al.
Bailer, J. C., et al., Editors, Comprehensive Inorganic Chemistry vol. 2, Pergamon Press, Ltd. Oxford, U.K. 1973, pp. 652-653.

Affiliated with

Also associated with

Rating

Process for the selective removal of arsenic in the course of th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the selective removal of arsenic in the course of th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the selective removal of arsenic in the course of th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-946711