公开(公告)号：US12049406B2

公开(公告)日：2024-07-30

申请号：US17054548

申请日：2019-06-04

Applicant: SHOWA DENKO K.K.

Inventor： Jun Dou ,  Saki Mouri ,  Hideyuki Kurihara

IPC: C01B35/06

CPC classification number: C01B35/061 ,  C01P2004/61

Abstract: There is provided a method of producing boron trichloride, in which damage to a reaction container is inhibited. The method of producing boron trichloride includes performing reaction between chlorine gas in a gas containing the chlorine gas and particulate boron carbide (4) in a state in which the boron carbide (4) flows in the gas containing the chlorine gas.

公开(公告)号：US11878912B2

公开(公告)日：2024-01-23

申请号：US17052844

申请日：2019-06-04

Applicant: SHOWA DENKO K.K.

Inventor： Saki Mouri ,  Hideyuki Kurihara

IPC: C01B35/06

CPC classification number: C01B35/061 ,  C01P2004/61 ,  C01P2006/82

Abstract: A method of producing boron trichloride, which includes: a metal chlorination step of bringing a gas containing chlorine gas into contact with raw boron carbide as boron carbide including, as an impurity, a metal other than boron, and allowing the metal to react with the chlorine gas in the gas containing the chlorine gas, to form a metal chloride and to obtain boron carbide containing the metal chloride; a removal step of removing the metal chloride from the boron carbide containing the metal chloride, obtained in the metal chlorination step; and a generation step of bringing a gas containing chlorine gas into contact with the boron carbide from which the metal chloride has been removed in the removal step, and allowing the boron carbide and the chlorine gas in the gas containing the chlorine gas to react with each other to generate boron trichloride.