National Science Center
Kharkov Institute of Physics and Technology

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Thermal vacuum method of Zirconium Dioxide production
 
 Thermal vacuum method of Zirconium Dioxide production is developed according to the agreement with the State Scientific-Production Enterprise (SSPE) "Zirkonij".
 
 Technological process of rapid continuous thermal drying (Fig.1-4).
 rapid moisture removal leads to the material granulation: from ~1 mm to
~10 m;
 decrease of specific energy consumption by a factor of 2,53;
 unnecessary technological operation of dried product grinding is excluded.
Zirconium Dioxide, moisture of 85%
Fig. 1 - Zirconium Dioxide, moisture of 85%
Zirconium Dioxide
Fig. 2 - Zirconium Dioxide. Initial drying stage (×100).

Fig. 3 - Powder (Ø10÷15 µm) of Zirconium Dioxide after drying (×5000).
Zirconium Dioxide, moisture of 1,1%
Fig. 4 - Zirconium Dioxide, moisture of 1,1%
Initial moisture, % Heating temperature, °C Drying time, s Moisture after drying, %
1 85 320 32 3,2
2 85 320 16 1,1
  2008-2017 SPE RESST
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Design : A.N. Odeychuk      thank to : u com