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Application filed by Yurii Borysovych Danylov, Oleh Hryhorovych NevshupafiledCriticalYurii Borysovych Danylov
Priority to UA20031211006ApriorityCriticalpatent/UA69783C2/en
Publication of UA69783ApublicationCriticalpatent/UA69783A/en
Publication of UA69783C2publicationCriticalpatent/UA69783C2/en
Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor
(AREA)
Abstract
A method for the preparation of solid caustic soda solution involves the solution concentrating and crystallization up to obtaining the finished product. The caustic soda solution is concentrated to 51-92 %, and crystallization of concentrated product is carried out at 0 - 300 DEGREE c. An apparatus for the preparation of caustic soda solution contains plant for caustic soda concentrating and crystallizing plant for crystallization of concentrated caustic soda solution. Between the caustic soda concentrating plant and crystallizing plant there is disposed an apparatus for cooling and keeping caustic soda solution, at that the crystallizing plant is joined with the said apparatus for cooling and keeping of solution by clarified solution of caustic soda.
UA20031211006A2003-12-042003-12-04A method for producing solid caustic soda and an apparatus for realizing the same
UA69783C2
(en)
A media having crystals of ammonium oxotrifluorotitanate, a method for preparing the same, and a method for preparing madias having crystals of titanium dioxide
Production process of group 13 metal nitride crystal, production method of semiconductor device, and solution and melt for use in these production process and method