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:
Aug. 07, 1990
Filed:
Feb. 01, 1983
Applicant:
Inventors:
Gerhard Stopp, Leverkusen, DE;
Karl-Heinz Kreutzer, Leverkusen, DE;
Horst Karkossa, Leichlingen, DE;
Karl Mannes, Leverkusen, DE;
Hans-Joachim Laakmann, Leichlingen, DE;
Viktor Trescher, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
422140 ; 2331 / ; 34 10 ; 209138 ; 209140 ; 209141 ; 2091391 ; 422145 ; 422147 ; 422219 ;
Abstract
Particulate material is discharged continuously from fluidized bed reactors by passing the material emerging at the lowest point of the fluidized bed through a zone which is narrower than the fluidized bed and in which a gas stream flows counter-current to the material, the pressure of the gas stream being above the pressure of the fluidized zone.