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:
Sep. 22, 1992
Filed:
Dec. 10, 1991
Applicant:
Inventors:
Konrad Schermutzki, Remseck, DE;
Herbert Wurmseher, Meitingen, DE;
Assignee:
Santrade Ltd., Lucerne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210773 ; 210774 ; 210803 ; 2105321 ;
Abstract
A substance is provided in molten form and then converted into crystallized pellets. The pellets are conveyed into a vessel having an open lower end, whereby the pellets continuously advance downwardly. As the pellets advance, they are subjected to a hot gas flow which causes outer contaminated surfaces of the pellets to melt and drip off. The remaining pellets travel out through the opening in a direction transversely of the direction of the dripping. In this manner, the substance is purified.