Published February 2009 | Version v1
Journal article Metadata-only

Purification of baddeleyite concentrate by melting with sulfuric acid and its salts

Creators

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

Description

Black baddeleyite concentrate of the composition %: 87.4 ZrO2, 1.5 SiO2, 2.5 TiO2, 0.51 Fe2O3, 1.6 CaO, 3.4 Nb2O5, 0.59 Ta2O5 has been used for the experiments. Sulfatization was conducted by 93% sulfuric acid with the ammonium, sodium and potassium salts additions. Sulfate mass was leaching at 60 Deg C by water during 1 h. Specific radioactivity of precipitates has been analyzed by radiometric and gamma spectrometric methods. Additions of ammonium, potassium and sodium sulfates increase the degree of decontamination, reduce the consumption of sulfuric acid to 20 %, and the temperature of sulfatization. Degree of decontamination increases with increasing additives in the system Na2SO4>(NH4)SO4>K2SO4

Abstract (Russian)

@@@ @@@@@@ @@@@@@@@@ @@@@@@@@ @@@@@@@@@@@@@ @@@@@@@@@@ @@@@@@@ %: 87.4 ZrO2, 1.5 SiO2, 2.5 TiO2, 0.51 Fe2O3, 1.6 CaO, 3.4 Nb2O5, 0.59 Ta2O5. @@@@@@@@@@@@@ @@@@@@@@@ 93%-@@@ @@@@@@ @@@@@@@@ @ @@@@@@@@@ @@@@@@@@@@@ @@@@@ @@@@@@@, @@@@@@ @ @@@@@. @@@@@@@@@@ @@@@@ @@@@@@@@@@@@ @@@ 60 @@@@ @ @@@@@ @ @@@@@@@ 1 @. @@@@@@@@ @@@@@@@@@@@@@@@ @@@@@@@ @@@@@@@@@@ @@@@@@@@@@@@@@@@ @ @@@@@-@@@@@@@@@@@@@@@@@@ @@@@@@@@. @@@@@@@ @@@@@@@@@ @@@@@@@, @@@@@ @ @@@@@@ @@@@@@@@ @@@@@@@ @@@@@@@ @@ @@@@@@@@@@@@@, @@@@@@@ @@ 20 % @@@@@@ @@@@@@ @@@@@@@ @ @@@@@@@@@@@ @@@@@@@@@@@@@. @@@@@@@ @@@@@@@ @@@@@@@@@@ @@@ @@@@@@@@@@ @@@@@@@ @ @@@@ Na2SO4>(NH4)SO4>K2SO4

Additional details

Additional titles

Original title (Russian)
Очистка бадделеитового концентрата сплавлением с серной кислотой и ее солями

Publishing Information

Journal Title
Zhurnal Prikladnoj Khimii
Journal Volume
82
Journal Issue
2
Journal Page Range
p. 196-198
ISSN
0044-4618
CODEN
ZPKHAB

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
41121497
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AMMONIUM SULFATES; BADDELEYITE; GAMMA SPECTROSCOPY; LEACHING; MELTING; NIOBIUM OXIDES; ORE CONCENTRATES; ORE PROCESSING; POTASSIUM SULFATES; RADIOMETRIC ANALYSIS; SODIUM SULFATES; SULFURIC ACID; TEMPERATURE RANGE 0273-0400 K; ZIRCONIUM OXIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; AMMONIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL ANALYSIS; DISSOLUTION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; MINERALS; NIOBIUM COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; POTASSIUM COMPOUNDS; PROCESSING; QUANTITATIVE CHEMICAL ANALYSIS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; REFRACTORY METAL COMPOUNDS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SPECTROSCOPY; SULFATES; SULFUR COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Notes
7 refs., 2 figs., 1 tab.