Method for recovery and conversion of strontium sulfate to stron

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423163, 423170, 423431, 4236585, C01F 1118, C01F 1128, C01F 1146, B01D 1100

Patent

active

046666885

ABSTRACT:
Essentially pure strontium carbonate is recovered from low to medium grade strontium sulfate containing ores by first treating the ore with a hydrochloric acid solution to remove extraneous materials including calcium, magnesium, barium, and iron. The remaining strontium sulfate containing residue is treated with ammonium carbonate to produce insoluble strontium carbonate and soluble ammonium sulfate. The strontium carbonate then is converted to soluble strontium chloride through treatment with a second, stronger hydrochloric acid solution. Any remaining extraneous barium or iron is removed from the second acid solution before the strontium chloride is reconverted to insoluble strontium carbonate and precipitated out of solution for recovery.

REFERENCES:
patent: 278283 (1883-05-01), Sidersky et al.
patent: 280172 (1883-06-01), Grouven
patent: 301383 (1884-07-01), Mebus et al.
patent: 1067595 (1913-07-01), Ekstrom
patent: 1782830 (1930-11-01), Pierce, Jr.
patent: 1936806 (1933-11-01), Thomas
patent: 1968737 (1934-07-01), Borrodalie
patent: 2035366 (1936-03-01), Elledge et al.
patent: 2509585 (1950-05-01), Brown
patent: 3029133 (1962-04-01), Goodenough
patent: 3333919 (1967-08-01), Buckingham
patent: 3343914 (1967-09-01), Bray
patent: 3743691 (1973-07-01), Trew
patent: 4337233 (1982-06-01), Chiang et al.
patent: 4421729 (1983-12-01), Chiang et al.
patent: 4495160 (1985-01-01), Moote et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for recovery and conversion of strontium sulfate to stron does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for recovery and conversion of strontium sulfate to stron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovery and conversion of strontium sulfate to stron will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1563407

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.