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. 22, 2005
Karsten Korth, Grenzach-Wyhlen, DE;
Jürgen Heidlas, Trostberg, DE;
Kurt Stork, Abensberg, DE;
Rudolf Zobel, Willanzheim, DE;
Karsten Korth, Grenzach-Wyhlen, DE;
Jürgen Heidlas, Trostberg, DE;
Kurt Stork, Abensberg, DE;
Rudolf Zobel, Willanzheim, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
Process for the extraction of substances from at least one silane-modified oxidic or silicatic filler, wherein at least one gas compressed by means of pressure and/or temperature is employed as the extraction agent and the compressed gas is led in the radial direction through the filler in the pressure container and/or the substances extracted from the silane-modified filler are removed from the compressed gas with a suitable sorbent. A device for carrying out the process is furthermore described, wherein this comprises at least one pressure container having at least one internal container, sieve or insert for accommodation of the fillers which is permeable to gas and at least one gas feed and gas removal in the bulk bed of filler, and has a radially designed gas feed or gas removal from the bulk bed of filler.