Process for purifying phosphogypsum

Details Process for purifying phosphogypsum Process for purifying phosphogypsum

1982-09-29

1983-12-20

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

106109, 423 11, 423 18, 423166, 423170, 423321R, C01F 1146, C01G 5600, C01B 2516

Patent

active

044217315

ABSTRACT:
A process for reducing radioactive contamination of phosphogypsum. Phosphogypsum containing radioactive material is calcined to form hemihydrate crystals carrying the radioactive contaminants, and a portion of the crystals is converted to substantially radiation-free gypsum crystals which are readily separated from the hemihydrate crystal relics containing substantially all of the radioactive contamination.

REFERENCES:
patent: 2531977 (1950-11-01), Hammaren et al.
patent: 3847766 (1974-11-01), Klaus
patent: 3906083 (1975-09-01), George
patent: 3949047 (1976-04-01), Cherdron et al.
patent: 3951675 (1976-04-01), Krempff
patent: 4146568 (1979-03-01), Lange, Jr.
patent: 4282192 (1981-08-01), Larson
patent: 4311677 (1982-01-01), Gerunda et al.
patent: 4328193 (1982-05-01), Larson

Affiliated with

Also associated with

Rating

Process for purifying phosphogypsum 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 purifying phosphogypsum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purifying phosphogypsum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-107188