The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2019
Filed:
Jan. 19, 2015
Korea Research Institute of Chemical Technology, Daejeon, KR;
Hanwha Chemical Corporation, Seoul, KR;
Won Choon Choi, Daejeon, KR;
Yong Ki Park, Seoul, KR;
Woo Hyung Lee, Chungcheongbuk-do, KR;
Hwi Min Seo, Daejeon, KR;
Na Young Kang, Daejeon, KR;
Joo Hee Han, Daejeon, KR;
Dong Ho Lee, Daejeon, KR;
Gui Ryong Ahn, Daejeon, KR;
Gil Ho Kim, Daejeon, KR;
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Yuseong-Gu, Daejeon, KR;
Abstract
A method for preparing trichlorosilane according to an embodiment of the present invention comprises the steps of: supplying surface-modified metal silicide and metal grade silicon to a reaction unit; supplying silicon tetrachloride and hydrogen to the reaction unit; and supplying a product, which is generated by a reaction of metal grade silicon, silicon tetrachloride, and hydrogen in the presence of metal silicide in the reaction unit, to a separation unit, and separating a trichlorosilane component. In cases where a silicon tetrachloride hydrochlorination reaction is performed using the method for preparing trichlorosilane according to the embodiment of the present invention, the yield of trichlorosilane can be raised.