Published 1988 | Version v1
Journal article Metadata-only

Ionometric determination of tantalum in loparite concentrate

Creators

  • 1. Gosudarstvennyj Nauchno-Issledovatel'skij i Proektnyj Inst. Redkometallicheskoj Promyshlennosti, Moscow (USSR)
  • 2. Moskovskij Khimiko-Tekhnologicheskij Inst., Moscow (USSR)

Description

Ionometric express determination of tantalum in loparite niobium containing concentrate with complex chemical composition is developed. Tantalum is determined in the form of hexafluorotantalate-ions using tantalum fluoride electrode. Autoclave decomposition of loparite concentrate is carried out in hydrofluoric acid at 160-180 deg C during 30 min. Ta ionometric determination is carried out using method of single standard additions. The Nb-Ti ratio in initial sample being 1:4.6, tantalum may be determined in their presence up to the molar ratio Ta:Nb:Ti=1:31:500, that corresponds to a minimum of Ta concentration 10-5M

Additional details

Additional titles

Original title (Russian)
Ионометрическое определение тантала в лопаритовом концентрате

Publishing Information

Journal Title
Zavodskaya Laboratoriya
Journal Volume
54
Journal Issue
10
Series
Zavod. Lab.
Journal Page Range
15-17
ISSN
0321-4265
CODEN
ZVDLA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
20051257
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
FLUORIDES; HYDROFLUORIC ACID; INTERFERING ELEMENTS; ION SELECTIVE ELECTRODE ANALYS; NIOBIUM; ORE CONCENTRATES; QUANTITATIVE CHEMICAL ANALYSIS; QUANTITY RATIO; SAMPLE PREPARATION; SENSITIVITY; TANTALUM; TANTALUM COMPLEXES; TITANIUM
Descriptors DEC
CHEMICAL ANALYSIS; COMPLEXES; ELEMENTS; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS