US 12,221,352 B2
Chlorosilane producing method
Katsuya Ogihara, Yamaguchi (JP); Shoji Iiyama, Yamaguchi (JP); and Kunihiko Matsumura, Yamaguchi (JP)
Assigned to Tokuyama Corporation, Yamaguchi (JP)
Appl. No. 17/435,056
Filed by Tokuyama Corporation, Yamaguchi (JP)
PCT Filed Feb. 26, 2020, PCT No. PCT/JP2020/007622
§ 371(c)(1), (2) Date Aug. 31, 2021,
PCT Pub. No. WO2020/179561, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-039320 (JP), filed on Mar. 5, 2019.
Prior Publication US 2022/0162079 A1, May 26, 2022
Int. Cl. C01B 33/107 (2006.01)
CPC C01B 33/10742 (2013.01) [C01P 2004/60 (2013.01)] 5 Claims
 
1. A method for producing chlorosilanes, comprising:
reacting a) a chlorine source gas and b) metallic silicon having a sodium content of 1 ppm or more and 90 ppm or less in terms of element, and an aluminum content of 1600 ppm or more and 2100 ppm or less in terms of element; and
producing a chlorosilane.