US 11,679,990 B2
Method for producing dispersion of iron-containing rutile titanium oxide fine particles, iron-containing rutile titanium oxide fine particles, and use thereof
Jun Yamaguchi, Kitakyushu (JP); Takumi Miyazaki, Kitakyushu (JP); Ryo Muraguchi, Kitakyushu (JP); and Tatsuya Uehara, Kitakyushu (JP)
Assigned to JGC Catalysts and Chemicals Ltd., Kawasaki (JP)
Appl. No. 16/494,355
Filed by JGC Catalysts and Chemicals Ltd., Kawasaki (JP)
PCT Filed Mar. 27, 2018, PCT No. PCT/JP2018/012287
§ 371(c)(1), (2) Date Sep. 16, 2019,
PCT Pub. No. WO2018/181241, PCT Pub. Date Oct. 4, 2018.
Claims priority of application No. JP2017-072658 (JP), filed on Mar. 31, 2017.
Prior Publication US 2020/0087162 A1, Mar. 19, 2020
Int. Cl. C01G 23/053 (2006.01); C09D 7/62 (2018.01); C09C 1/36 (2006.01)
CPC C01G 23/053 (2013.01) [C09C 1/3653 (2013.01); C09D 7/62 (2018.01); C01P 2002/70 (2013.01); C01P 2004/03 (2013.01); C01P 2004/64 (2013.01); C01P 2006/60 (2013.01)] 5 Claims
OG exemplary drawing
 
1. Iron-containing rutile titanium oxide fine particles satisfying requirements (a) to (f) below:
(a) the fine particles contain not less than 70 mass % of Ti in terms of TiO2, contain Fe and contain Sn, Si and at least one metal element (M) selected from the group consisting of Al, Zr, Sb, Zn, Ni, Ba, Mg and V;
(b) the mass contents of Fe and Ti in terms of oxide satisfy mass of Fe2O3/(total mass of TiO2 and Fe2O3)=0.001 to 0.010;
(c) the mass contents of Ti and Sn in terms of oxide satisfy mass of TiO2/mass of SnO2=6 to 18;
(d) the mass contents of Si and M in terms of oxide satisfy mass of SiO2/mass of MOx/2 (x is the valence of M)=99.9/0.1 to 80/20;
(e) the mass contents of Si and the metal elements in terms of oxide satisfy mass of SiO2/(total mass of TiO2, SnO2, Fe2O3, SiO2 and MOx/2 (x is the valence of M))=0.08 to 0.22; and
(f) the average particle size is 4 to 25 nm.