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:
Oct. 30, 2007
Filed:
Jan. 20, 2004
Applicants:
Dieter Hauk, Friedberg, DE;
Ulrich Wietelmann, Friedrichsdorf, DE;
Inventors:
Dieter Hauk, Friedberg, DE;
Ulrich Wietelmann, Friedrichsdorf, DE;
Assignee:
Chemetall GmbH, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of lithium borohydride by reaction of lithium hydride with boron trifluoride is described, in which lithium hydride is reacted with boron trifluoride in a molar ratio LiH:BFof >4.1:1, the reaction being carried out in an ethereal solvent whose boiling point at normal pressure is at least 50° C., and at temperatures of at least 10° C.