TITANIUM OXIDE PARTICLES AND METHOD FOR PRODUCING SAME

• Main Authors: FURUMOTO, Yoshiyasu, KAYAMA, Susumu, KOGOI, Hisao
• Format: Patent
• Language: English
• Published: 18.07.2024
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

Titanium oxide particles, a method for their production, and a slurry, dispersion, composition and dielectric starting material that include the titanium oxide particles. The D90 (LD)/D50 (LD) ratio of the titanium oxide particles is greater than 1.0 and 2.0 or lower, and the particle concentration of coarse particles having a size exceeding 16 times the D50 (SEM)(16× the D50 (SEM)), for primary particles, is 20 ppm or lower. For their production, a source gas and oxidizing gas are introduced into a reaction tube and reacted, with a purge medium blowing outlet being provided on the inner wall of the reaction tube, and the blowout angle and the blowout flow velocity (B) of the purge medium from the inner wall of the reaction tube being such that the purge medium is introduced in a swirling manner along the inner wall of the reaction tube.