| abstract |
(57) [Summary] [Purpose] To provide iron sulfide that exhibits excellent handleability and hydrogenation catalytic activity in a coal liquefaction and hydrocracking reaction of heavy oil, and an efficient production method thereof. [Composition] X-ray diffraction component is FeS 2 8 on a weight basis. 5 to 100%, Fe 1-X S (X: 0 to 0.2) 5 to 0 %, Fe 3 O 4 5-0% and FeSO 4 10-0%, 50% of the volume-based cumulative distribution of secondary particles formed mainly from primary particles having a particle size of 10-400 nm (hereinafter d 50 and referred to) is iron sulfide is 20 to 300 microns. |