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. 31, 2017
Filed:
Feb. 23, 2012
Michael Benje, Bad Soden, DE;
Peter Kammerhofer, Burgkirchen, DE;
Michael Benje, Bad Soden, DE;
Peter Kammerhofer, Burgkirchen, DE;
THYSSENKRUPP UHDE GMBH, Dortmund, DE;
VINNOLIT GMBH & CO. KG, Burgkirchen, DE;
Abstract
An apparatus () and method for drying polymer powders is described. The apparatus has an inlet () and an outlet () for the polymer powder, heat registers () installed in the interior space () and lines () for a heated gas () for drying the polymer powder. The lines open into the interior space () and are connected to heat exchangers () for heating gas (). The heat exchangers () are connected to a plant for the preparation of 1,2-dichloroethane () and/or for the preparation of vinyl chloride from 1,2-dichloroethane so that thermal energy from the plant can be utilized for heating the gas (). The method comprises treatment of a polymer powder with a heated gas () in the drying apparatus ().