Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Slobodan Milonjić, Branislav RadonjićfiledCriticalSlobodan Milonjić
Priority to YUP-590/03ApriorityCriticalpatent/RS50190B/sr
Publication of YU59003ApublicationCriticalpatent/YU59003A/sh
Publication of RS50190BpublicationCriticalpatent/RS50190B/sr
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Colloid Chemistry
(AREA)
Abstract
Postupak sinteze stabilne vodene koloidne disperzije (sola) aluminijumoksida se sastoji u peptizaciji aluminijumhidroksida, dobijenog taloženjem rastvora aluminijumovih soli (aluminijumhlorida ili aluminijumnitrata ili aluminijumsulfata) sa rastvorom amonijaka, pomoću azotne kiseline pri temperaturama od 100В° do 180В°C. Stabilna vodena koloidna disperzija (sol) aluminijumoksida dobijena opisanim pronalaskom nalazi primenu u proizvodnji adsorbenata, katalizatora, mikroelektronike, keramičkih i vatrostalnih proizvoda, kalupa za livenje, specijalnih stakala i filmova, prevlaka, itd.[Procedure for synthesis of stable aqueous colloidal dispersion (sol) of aluminum oxide comprises from peptization of aluminum hydroxide, obtained by precipitation of solution of salts of aluminum (aluminum chlorides, or aluminum nitrates or aluminum sulfates) by means of ammonia solution, by means of nitrites at the temperatures from 100В° up to 180В°C. Stable aqueous colloidal dispersion (sol) of aluminum oxide obtained by described invention finds application in the production of adsorbents, catalysts, microelectronics, ceramic and apyrous products, moulds for casting, special glasses and films, coatings, etc.