Ion exchange method for separation of scandium and thorium
This patent describes a method for separating scandium and thorium comprising the following steps: Step 1--adjusting a solution comprising scandium and thorium to an acid pH to form an acid solution having a pH of about 1.95; Step 2--contacting the acid solution from step 1 with a cation exchange resin, the cation exchange resin having a sulfonic acid functionally; Step 3--retaining the scandium and thorium on the cation exchange resin; Step 4--eluting the scandium from the cation exchange resin with a first elution solution comprising about 0.1M diglycolic acid and 1.2M hydrochloric acid; and Step 5--eluting the thorium from the cation exchange resin with a second elution solution comprising about 6N hydrochloric acid.
- Assignee:
- GTE Laboratories Inc., Waltham, MA
- Patent Number(s):
- US 4765909
- OSTI ID:
- 6626019
- Resource Relation:
- Patent File Date: Filed date 23 Apr 1987
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recovery of scandium and uranium
SEPARATION OF THORIUM FROM RARE EARTHS, ZIRCONIUM, AND OTHER ELEMENTS BY CATION EXCHANGE CHROMATOGRAPHY
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
SCANDIUM
SEPARATION PROCESSES
THORIUM
ACIDIFICATION
ELUTRIATION
HYDROCHLORIC ACID
ION EXCHANGE
ION EXCHANGE MATERIALS
PH VALUE
RESINS
SULFONIC ACIDS
ACTINIDES
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
400202 - Isotope Effects
Isotope Exchange
& Isotope Separation