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:
May. 09, 1989
Filed:
Mar. 31, 1988
Hans-Juergen Smigerski, Marl, DE;
Huels Aktiengesellschaft, Marl, DE;
Abstract
A method of processing finely divided solids which have precipitated or separated out in a liquid. The suspended finely divided solid is converted into a pourable powder with negligible dust content and narrow particle size distribution, without detrimental particle alteration. The suspension is charged into a centrifuge, which may be a reversible-filter centrifuge. The solids are preferably centrifuged at a centrifugal pressure of 0.05-0.5 MPa for 0.5-5 min, and are then gently removed from the centrifuge, to be dried gently in a vibrating fluidized-bed dryer. The method is particularly suitable for processing precipitated synthetic rubbers (which may contain fillers as well) into a pourable powder which retains pourability after storage.