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:
Jun. 04, 2002
Filed:
Oct. 06, 2000
Applicant:
Inventor:
Hubertus J. M. Slangen, Urmond, NL;
Assignee:
DSM N.V., Heerlen, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B 3/32 ;
U.S. Cl.
CPC ...
F26B 3/32 ;
Abstract
The invention relates to a process for drying melamine wet cake to produce a dry melamine powder showing improved bulk properties, the drying being effected with a contact dryer. In particular the invention relates to a process for drying melamine wet cake that contains predominantly melamine crystals that have crystallized from a melamine solution in a crystallizer, the drying being effected with a contact dryer. The invention also relates to the drying of a melamine wet cake whose percentage of fines having a diameter of <21 &mgr;m is less than 30 wt. %, the drying being effected with a contact dryer.