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:
Dec. 09, 2008
Filed:
Jun. 24, 2004
Jan-otto Hoel, Trondheim, NO;
Harry Morten Rong, Heimdal, NO;
Torbjorn Roe, Trondheim, NO;
Harald Arnljot Oye, Steinhaugen, NO;
Jan-Otto Hoel, Trondheim, NO;
Harry Morten Rong, Heimdal, NO;
Torbjorn Roe, Trondheim, NO;
Harald Arnljot Oye, Steinhaugen, NO;
Elkem AS, Oslo, NO;
Abstract
The present invention relates to a method for the production of trichlorosilane by reaction of silicon with HCl gas at a temperature between 250 and 1100° C., and an absolute pressure of 0.5-30 atm in a fluidized bed reactor, in a stirred bed reactor or a solid bed reactor, where the silicon supplied to the reactor contains between 30 and 10.000 ppm chromium. The invention further relates to silicon for use in the production of trichlorosilane by reaction of silicon with HCl gas, containing between 30 and 10.000 ppm 10 chromium, the remaining except for normal impurities being silicon.