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:
Jul. 27, 1999
Filed:
Nov. 19, 1997
Applicant:
Inventors:
Assignee:
E. Schwenk Baustoffwerke KG, Ulm, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23J / ;
U.S. Cl.
CPC ...
432 72 ; 432106 ;
Abstract
A method of removing sulphur dioxide from exhaust gases generated in the production of cement wherein cement raw meal is preheated, ground, and burned in a kiln to form cement clinker which subsequently is cooled and ground. Grinding of the clinker is performed in the presence of preheater exhaust gases containing sulphur dioxide, the cement particles absorbing sulphur dioxide from such exhaust gases.