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:
Jan. 01, 2002
Filed:
Dec. 22, 1998
Applicant:
Inventors:
Johannes Albertus Maria Meijer, Schalkhaar, NL;
Robert Michael Geertman, Arnhem, NL;
Harald Oosterhof, Delft, NL;
Geert-Jan Witkamp, Bergschenhoek, NL;
Gerda Maria Van Rosmalen, Delft, NL;
Assignee:
Technische Universiteit Delft, Delft, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D 7/00 ;
U.S. Cl.
CPC ...
C01D 7/00 ;
Abstract
A process is presented in which anhydrous soda is crystallized and worked up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m . The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atmospheric pressure in the presence of water without the monohydrate of soda being formed.