Published August 1997 | Version v1
Journal article Metadata-only

Production and purification of scandium trifluoride

Creators

  • 1. RAN, Inst. Obshchej i Neorganicheskoj Khimii im. N.S. Kurnakova, Moscow (Russian Federation)
  • 2. Rossijskij Khimiko-Tekhnologicheskij Univ. im. D.I. Mendeleeva, Moscow (Russian Federation)
  • 3. Vserossijskij Nauchno-Issledovatel'skij Inst. Khimicheskoj Tekhnologii, Moscow (Russian Federation)

Description

Two methods of production of pure scandium trifluoride from scandium oxide are developed and tested. The first of these methods used ammonium hydrodifluoride. The second method used hydrofluoric acid. It is shown that the first methods doesn't allow to obtained scandium purification from metal dopants and is hardly realized in a large scale. Usage of treatment in fluorine stream at the finishing technological stage allowed to get scandium trifluoride with low oxygen content (0.1 - 0.5 mass %)

Abstract (Russian)

Разработаны и проверены два метода получения чистого трифторида скандия из оксида скандия - с использованием гидрофторида аммония и с применением фтористоводородной кислоты. Первый метод использовал применение гидрофторида аммония. Найдено, что первый метод трудно реализовать в больших масштабах. Применение обработки в токе фтора позволяет получать трифторид скандия с низким содержанием кислорода (0.1 - 0.5 масс. %)

Additional details

Additional titles

Original title (Russian)
Получение и очистка трифторида скандия

Publishing Information

Journal Title
Tsvetnye Metally
Journal Issue
no.8
Journal Page Range
p. 53-56
ISSN
0372-2929
CODEN
TVMTAX

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31035673
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AMMONIUM COMPOUNDS; EFFICIENCY; HYDRATES; HYDROFLUORIC ACID; IMPURITIES; PRODUCTION; PURIFICATION; SCANDIUM; SCANDIUM FLUORIDES; SCANDIUM OXIDES
Descriptors DEC
CHALCOGENIDES; ELEMENTS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; OXIDES; OXYGEN COMPOUNDS; SCANDIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
5 refs., 1tab.