Published 1983
| Version v1
Journal article
Preparation of double salt of hafnium and potassium from sulfate solutions
- 1. Moskovskij Inst. Stali i Splavov (USSR)
Description
The base double hafnium- and potassium sulfate K2SO4xHf(OH)2SO4xH2O has been systhesized from disulfatohafnium acid at 90 deg C. To eliminate impurities from the salt it was washed with a mixture of acetone and sulphuric acid taken in the 10:1 ratio. To prepare a standard product as regards iron- and titanium impurities, the following regime was chosen: HfO2 concentration=200-250 g/l; Lsub(s)=2.3-2.5; KCl:HFO2 molar ratio =2.5-3. Pyrolysis of the salt at 660-1100 deg C resulted in production K2SO4 and HFO2
Additional details
Additional titles
- Original title (Russian)
- Получение двойнойсоли гафния и калия из сульфатных растворов
Publishing Information
- Journal Title
- Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol.
- Journal Volume
- 26
- Journal Issue
- 1
- Series
- Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol.
- Journal Page Range
- 3-6
- ISSN
- 0579-2991
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 15012403
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL PREPARATION; HAFNIUM SULFATES; HYDRATES; MEDIUM TEMPERATURE; POTASSIUM SULFATES; PURIFICATION; PYROLYSIS; SALTS
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; HAFNIUM COMPOUNDS; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; SULFATES; SULFUR COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS