EVALUATION OF THE YORK-SCHEIBEL LIQUID-LIQUID CONTACTOR FOR THE PREPARATION OF A YTTRIUM CONCENTRATE FOR ION EXCHANGE COLUMN FEED. Report No. 195. Period covered: February 26, 1958 to April16, 1958
Technical Report
·
OSTI ID:4113640
A maximum separation factor of 40 between yttrium and dysprosium was obtained in a york-Scheibel liquid-liquid contactor containing eleven physical stages using the following solutions and conditions of operation. The organic extractant composition was 2: 2: 1 kerosene: Lorol-22(Ndecanol) : 25 to 30% monododecyl phosphoric acid in kerosene. The aqueous scrub solution contained 20 g/liter of hydroxyethylethylenediaminetriacetic acid, 24 g/liter of acetic acid, and the pH was adjusted to 4.0 with 28% ammonia. The feed solution contained 50 g/liter of rare-earth oxides dissolved in acetic acid. The feed solution pH was 4.0. The ilow rates of the organic extractant, aqueous scrub, and feed solutions were 14.8 ml/min 8.8 ml/min, and 1.5 ml/min, respectively. The total throughput was 25.1 ml/min. An agitator speed of 700 rpm was used. This separation factor of 40 does not compare favorably with the separation factors (178 to 346) obtained in the 9-stage discontinuous mixer-settler liquid-liquid contactor or the separation factors (70 to 155) that were obtained in the 13stage continuous mixer-settler liquid-liquid contactor. (auth)
- Research Organization:
- Michigan Chemical Corp., St. Louis, Mich.
- NSA Number:
- NSA-15-004059
- OSTI ID:
- 4113640
- Report Number(s):
- TID-11088
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ACETIC ACID
ALCOHOLS
ALKYL RADICALS
AMMONIA
CHEMISTRY
CHROMATOGRAPHY
DECANOL
DYSPROSIUM
EXTRACTION COLUMNS
FLOW RATE
HEDTA
ION EXCHANGE
ION EXCHANGE MATERIALS
ISOTOPE SEPARATION
KEROSENE
LABORATORY EQUIPMENT
LIQUIDS
MDPA
MECHANICAL STRUCTURES
MIXER-SETTLERS
MIXING
ORGANIC COMPOUNDS
OXIDES
PHOSPHORIC ACID
PREPARATION
RARE EARTHS
SEPARATION FACTOR
SEPARATION PROCESSES
SOLUTIONS
SOLVENTS
USES
WATER
YTTRIUM
ALCOHOLS
ALKYL RADICALS
AMMONIA
CHEMISTRY
CHROMATOGRAPHY
DECANOL
DYSPROSIUM
EXTRACTION COLUMNS
FLOW RATE
HEDTA
ION EXCHANGE
ION EXCHANGE MATERIALS
ISOTOPE SEPARATION
KEROSENE
LABORATORY EQUIPMENT
LIQUIDS
MDPA
MECHANICAL STRUCTURES
MIXER-SETTLERS
MIXING
ORGANIC COMPOUNDS
OXIDES
PHOSPHORIC ACID
PREPARATION
RARE EARTHS
SEPARATION FACTOR
SEPARATION PROCESSES
SOLUTIONS
SOLVENTS
USES
WATER
YTTRIUM