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. 24, 2013
Filed:
Nov. 20, 2009
Rainer Gadow, Aschau am Inn, DE;
Frank Kern, Tiefenbronn, DE;
Winfried Boenigk, Lüdinghausen, DE;
Matthias Levering, Essen, DE;
Claudia Boltersdorf, Gevelsberg, DE;
Rainer Gadow, Aschau am Inn, DE;
Frank Kern, Tiefenbronn, DE;
Winfried Boenigk, Lüdinghausen, DE;
Matthias Levering, Essen, DE;
Claudia Boltersdorf, Gevelsberg, DE;
Rheinkalk GmbH, Wulfrath, DE;
Abstract
In a continuous method for production of a semicoke powder with high bulk density and flowability, a sinterable carbon powder (semicoke) is dispersed in water with addition of at least one binder and at least one liquefier, wherein the proportion of carbon in the dispersion is adjusted to at least 50 wt. %, relative to the mass of the dispersion, and the zeta potential of the dispersion is adjusted to less than −50 mV, the dispersion is submitted to homogenization and stabilization by continuous wet grinding with a residence time in the mill of less than 3 minutes and the homogeneous dispersion is spray-dried.