Published September 2003 | Version v1
Journal article Metadata-only

Extraction and distribution of tantalum and niobium from acid fluoric solutions

Creators

  • 1. KNTs RAN, Inst. Khimii i Tekhnologii Redkikh Ehlementov i Mineral'nogo Syr'ya im. I.V. Tananaeva, Apatity (Russian Federation)

Description

The influence of titanium and silicon macroconcentrations on distribution of tantalum and niobium fluorides on extraction with tributyl phosphate and octanol is investigated. A considerable growth of tantalum and niobium extraction is observed with an increase of the impurity contents. The process of production of high purity tantalum and niobium compounds is schematically proposed with the use of extraction from fluoride-titanium solutions, containing titanium up to 6 mol l-'1 without introduction of H2SO4 or other strong mineral acids into the extraction system

Abstract (Russian)

Исследовано влияние макроконцентраций титана и кремния на распределение фторидов тантала и ниобия при экстракции трибутилфосфатом и октанолом. С увеличением содержания этих примесей наблюдается значительный рост извлечения тантала и ниобия. Предложена схема получения чистых соединений тантала и ниобия экстракцией из фторидно-титановых растворов, содержащих титан до 6 моль л-1 без введения в экстракционную систему H2SO4 или других сильных минеральных кислот

Additional details

Additional titles

Original title (Russian)
Ehkstraktsionnoe izvlechenie i razdelenie tantala i niobiya iz kislykh ftoridnykh rastvorov

Publishing Information

Journal Title
Metally (Moscow)
Journal Issue
no.5
Journal Page Range
p. 17-21
ISSN
0869-5733
CODEN
MEALET

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
35092190
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AQUEOUS SOLUTIONS; CHEMICAL REACTION YIELD; CONCENTRATION RATIO; FLUORIDES; IMPURITIES; NIOBIUM; REFINING; SOLVENT EXTRACTION; TANTALUM
Descriptors DEC
DISPERSIONS; ELEMENTS; EXTRACTION; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; METALS; MIXTURES; PROCESSING; REFRACTORY METALS; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENTS; YIELDS

Optional Information

Notes
6 refs., 5 figs., 1 tab.