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. 08, 2013
Filed:
Feb. 17, 2012
Kerstin Schierle-arndt, Zwingenberg, DE;
Günther Huber, Ludwigshafen, DE;
Stephen Nicholas Heavens, Ludlow, GB;
John Stuart Blackburn, Widnes, GB;
Ivor Wynn Jones, Chester, GB;
Kerstin Schierle-Arndt, Zwingenberg, DE;
Günther Huber, Ludwigshafen, DE;
Stephen Nicholas Heavens, Ludlow, GB;
John Stuart Blackburn, Widnes, GB;
Ivor Wynn Jones, Chester, GB;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A method is provide for preparing potassium metal which comprises embedding a polycrystalline alkali metal β″-AlOmolding in an oxidic powder containing potassium and aluminum of a molar KO:AlOratio within the range of 1:(x−1) to 1:(x+1), the weight of oxidic powder amounting to at least two times the weight of the molding; heating the embedded molding at a rate of at least 100° C. per hour to at least 1100° C.; and further heating to at least 1300° C., this temperature being maintained for at least one hour prior to cooling.