Method for preparation of aluminium and zirconium oxide mixtures
Creators
Description
Preparation of mixtures of aluminium and zirconium oxides of excellent quality at the expense of producing granules of spheric shape 0.1-1 μm in size and dispersion index dw/dn not exceeding 2, where dw-medium weight diameter, dn-medium numeric diameter, is described. The method consists in the mixing of aluminium and zirconium salts and their treatment by precipitator in the presence of soluble cationic quaternary polyelectrolytes, having mean molecular mass of 3 mln. Precipitation is realized in the presence of sulfuric acid at pH < 3 at aluminium salt solution concentration up to 0.3 mol/l. Precipitation takes place at 90-100 deg using urea or formamide as a precipitant. The precipitate prepared is filtrated, washed and dried at 120 deg C for several hours
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23000138.pdf
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Additional details
Additional titles
- Original title (Russian)
- Способ получения смеси оксидов алюминия и циркония
Publishing Information
- Imprint Pagination
- 6 p.
- IPC:
- Int. Cl. C01F 7/02.
- IPC
- Int. Cl. C01F 7/02.
- Patent number
- SU patent document 1609442/A3/
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 23000138
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALUMINIUM OXIDES; AMORPHOUS STATE; BINARY MIXTURES; CHEMICAL PREPARATION; ELECTROLYTES; GRANULAR MATERIALS; MEDIUM TEMPERATURE; ORGANIC POLYMERS; PARTICLE SIZE; PRECIPITATION; QUANTITY RATIO; QUATERNARY COMPOUNDS; SULFURIC ACID; UREA; ZIRCONIUM OXIDES
- Descriptors DEC
- ALUMINIUM COMPOUNDS; AMINES; CARBONIC ACID DERIVATIVES; CHALCOGENIDES; DISPERSIONS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLYMERS; SEPARATION PROCESSES; SIZE; SULFUR COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS
Optional Information
- Secondary number(s)
- SU patent application 4027646/27-02.