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:
Jul. 03, 2018
Filed:
Mar. 17, 2015
Matheson Tri-gas, Inc., Basking Ridge, NJ (US);
Mark W. Raynor, Longmont, CO (US);
Daniel J. Tempel, Erie, CO (US);
Junpin Yao, Longmony, CO (US);
Larry Wagg, Longmont, CO (US);
Adam Seymour, Longmont, CO (US);
Matheson Tri-Gas, Inc., Basking Ridge, NJ (US);
Abstract
The present invention relates, in general, to the purification of boron trichloride (BCl). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl) formation in BClproduction and/or the removal of SiClin BClproduct stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiClpresent to SiHwhich is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiClfrom BClthat has been partially purified to remove light boilers.