Process for the selective separation of uranium, zirconium and/o

Details Process for the selective separation of uranium, zirconium and/o Process for the selective separation of uranium, zirconium and/o

1984-10-15

1987-06-23

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 15, 423 71, C01G 4300

Patent

active

046751661

ABSTRACT:
Process for the selective separation of uranium in carbonated aqueous solution from soluble impurities including in particular at least one of the elements zirconium and/or hafnium and/or molybdenum, thereby making it possible to produce a uraniferous liquor in a greatly improved state of purity, comprising precipitation of the zirconium and/or hafnium by introducing an alkali metal hydroxide, then separation of the zirconiferous precipitate which possibly contains hafnium and/or molybdenum from the resulting uraniferous solution with its reduced impurities content, which still possibly contains molybdenum, which is characterized in that in order to increase the removal of zirconium and/or hafnium and/or molybdenum, the uraniferous carbonated aqueous solution is treated by means of a dilute alkaline aqueous solution containing at most 17 g/l of at least one alkali metal hydroxide expressed in respect of OH.sup.-, in an amount such that the resulting pH-value is imperatively higher than 11 but is generally between 11.8 and 12.5.

REFERENCES:
patent: 3034856 (1962-05-01), Reusser
patent: 3288570 (1966-11-01), Henrickson
patent: 4155982 (1979-05-01), Hunkin et al.
patent: 4304757 (1981-12-01), Kuehl et al.
patent: 4393028 (1983-07-01), Crossley
patent: 4423010 (1983-12-01), Maurel, I
patent: 4432947 (1984-02-01), Maurel II
patent: 4485075 (1984-11-01), Maurel III
patent: 4524001 (1985-06-01), Joubert
patent: 4587109 (1986-05-01), Lyaudet et al.

Affiliated with

Also associated with

Rating

Process for the selective separation of uranium, zirconium and/o 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 separation of uranium, zirconium and/o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the selective separation of uranium, zirconium and/o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-720150