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.

Date of Patent:
Nov. 14, 1989

Filed:

Dec. 03, 1987
Applicant:
Inventors:

Michael Hirth, Unterentfelden, CH;

Norbert Wiegart, Baden, CH;

Assignee:

BBC Brown Boveri AG, Baden, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01J / ; C10H / ;
U.S. Cl.
CPC ...
423210 ; 4232453 ;
Abstract

In the separation and/or reaction of particles, these are heated together with a gaseous carrier medium. Constituents of these particles thus vaporize and form a mixture, while solid constituents remain. A process is to be indicated which enables pollutants adsorbed on the particles to be separated off and/or reacted economically, without an uncontrolled release of residual pollutants to the environment. An apparatus for carrying out the process is also to be provided. This is achieved by mixing the particles and the carrier medium at controlled rates to give a fluidized blend. This blend is heated in a fluidized bed of a heating device in such a way that a mixture is formed. Immediately after the mixture has left the heating device, solid constituents of the mixture are precipitated and the remaining part of the mixture is then passed forward in a closed circulation.


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