Published August 23, 1988 | Version v1
Patent Metadata-only

Ion exchange method for separation of scandium and thorium

Creators

Description

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

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Publishing Information

Imprint Pagination
vp.
IPC:
Int. Cl. B01D 15/04.
IPC
Int. Cl. B01D 15/04.
Patent number
US patent document 4,765,909/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20025281
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ACIDIFICATION; ELUTRIATION; HYDROCHLORIC ACID; ION EXCHANGE; ION EXCHANGE MATERIALS; PH VALUE; RESINS; SCANDIUM; SEPARATION PROCESSES; SULFONIC ACIDS; THORIUM
Descriptors DEC
ACTINIDES; CHLORINE COMPOUNDS; ELEMENTS; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; METALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; ORGANIC SULFUR COMPOUNDS; POLYMERS; TRANSITION ELEMENTS