RUTILE NANOPARTICLES AND PROCESS OF SYNTHESIS FOR OBTAINING RUTILE NANOPARTICLES

The subject of the invention are rutile nanoparticles and a process of synthesis for obtaining rutile nanoparticles from metatitanium acid which is a semifinished product in the production of TiO2 pigments. The synthesis of rutile nanoparticles from metatitanium acid is based on the so called gel-sol process. Rutile nanoparticles according to the invention are very fine particles in the form of an acid/neutral suspension, where rutile nanoparticles are polycrystalline and the crystallites exhibit anisothropic morphology and are about 5 nm wide and several 10 nm long, while rutile nanoparticles themselves have a size between 60 and 100 nm in length and 15 to 50 mm in width and a specific surface between 90 and 160 m2/g. Predmet izuma so nanodelci rutila in postopek sinteze za pridobivanje nanodelcev rutila iz metatitanove kisline, ki je polprodukt v proizvodnji pigmenta TiO2. Sinteza nanodelcev rutila iz metatitanove kisline temelji na t.i. gel-sol postopku. Nanodelci rutila po izumu so zelo fini delci v obliki kisle/nevtralne suspenzije, pri čemer so nanodelci rutila polikristalinični in kristaliti izkazujejo anizotropno morfologijo in so široki približno 5 nm in dolgi več 10 nm, sami nanodelci rutila pa so velikosti med 60 in 100 nm v dolžino in 15 do 50 nm v širino ter je njihova specifična površina med 90 do 160 m2/g.