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:
Apr. 15, 1986
Filed:
Dec. 21, 1984
Applicant:
Inventors:
Karl-Heinz Dorr, Mainz, DE;
Ulrich Sander, Friedrichsdorf, DE;
Alfons Schulte, Frankfurt am Main, DE;
Heinrich Traulsen, Schwalbach, DE;
Assignee:
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ; F26B / ; B01D / ; F01N / ;
U.S. Cl.
CPC ...
432 14 ; 34 86 ; 422168 ; 422183 ; 432105 ;
Abstract
The moist ores are dried in direct contact with hot dry tail gas from a contact process plant for producing sulfuric acid. The dried ores are roasted, the SO.sub.2 -containing gases produced by the roasting are processed in the contact process plant to produce sulfuric acid, and the tail gases from the contact process plant are heated up with surplus heat from the contact process plant. These heated tail gases are used to dry the moist ores.