Published December 18, 1987 | Version v1
Patent Metadata-only

Process for rare earth separation

Creators

Description

Separation process of neodymium and eventually praseodymium from rare earths contained in fluocarbonated ores and especially bastnaesite by calcination, leaching with nitric acid and liquid-liquid extraction

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

On decrit un procede pour separer le neodyme, eventuellement en association avec le praseodyme, des autres terres rares contenus dans la bastnaesite par calcination, lixiviation menagee a l'aide d'une solution d'acide nitrique et separation par extraction liquide-liquide

Additional details

Additional titles

Original title (French)
Procede de separation de terres rares

Publishing Information

Imprint Pagination
25 p.
IPC:
Int. Cl. C22b59/00; C22b3/00; B01d11/04.
IPC
Int. Cl. C22b59/00; C22b3/00; B01d11/04.
Patent number
FR patent document 2600081/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
19065885
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BASTNAESITE; LEACHING; NEODYMIUM; PRASEODYMIUM; SOLVENT EXTRACTION
Descriptors DEC
DISSOLUTION; ELEMENTS; MATERIALS; METALS; MINERALS; OXIDE MINERALS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RARE EARTHS; SEPARATION PROCESSES; THORIUM MINERALS

Optional Information

Secondary number(s)
FR patent application 8603889.