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Recovery and Separation of Rare-Earths Elements, Barium, and Strontium from Bastnasite with Sulfuric Acid.

PB240096

Publication Date	1974
Personal Author	Eisele, J. A.; Bauer, D. J.
Page Count	16
Abstract	The Bureau of Mines conducted a bench-scale investigation of a concentrated H2SO4 reaction for the recovery and separation of rare earths, barium, and strontium from a bastnasite ore and byproduct. Barium and strontium were dissolved in the concentrated acid and precipitated as a mixed product by water dilution. Separation of strontium from barium was effected by reaction with Na2CO3 solution followed by a dilute acid leach of the SrCO3 formed. After the removal of the barium and strontium from bastnasite ore, the rare earths were roasted to water-soluble sulfates. The rare-earth sulfate solution was subsequently processed by solvent extraction to produce rare-earth oxides low in lead and magnesium.
Keywords	Rare earth elements Barium Strontium Separation Inorganic sulfates Sulfuric acid Leaching Recovery Metalliferous minerals Extraction Bastnasite
Source Agency	Bureau of Mines
NTIS Subject Category	99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Bureau of Mines, Reno, Nev. Reno Metallurgy Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations 1974.
NTIS Issue Number	197511

Recovery and Separation of Rare-Earths Elements, Barium, and Strontium from Bastnasite with Sulfuric Acid.

Recovery and Separation of Rare-Earths Elements, Barium, and Strontium from Bastnasite with Sulfuric Acid.
PB240096

Publication Date	1974
Personal Author	Eisele, J. A.; Bauer, D. J.
Page Count	16
Abstract	The Bureau of Mines conducted a bench-scale investigation of a concentrated H2SO4 reaction for the recovery and separation of rare earths, barium, and strontium from a bastnasite ore and byproduct. Barium and strontium were dissolved in the concentrated acid and precipitated as a mixed product by water dilution. Separation of strontium from barium was effected by reaction with Na2CO3 solution followed by a dilute acid leach of the SrCO3 formed. After the removal of the barium and strontium from bastnasite ore, the rare earths were roasted to water-soluble sulfates. The rare-earth sulfate solution was subsequently processed by solvent extraction to produce rare-earth oxides low in lead and magnesium.
Keywords	Rare earth elements Barium Strontium Separation Inorganic sulfates Sulfuric acid Leaching Recovery Metalliferous minerals Extraction Bastnasite
Source Agency	Bureau of Mines
NTIS Subject Category	99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Bureau of Mines, Reno, Nev. Reno Metallurgy Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations 1974.
NTIS Issue Number	197511