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. 11, 2011
Filed:
Dec. 28, 2006
Alexander Hauk, Ludwigshafen, DE;
Stefan Gropp, Speyer, DE;
Anna Valeska Lohmann, Limburgerhof, DE;
Robert Heinz, Ludwigshafen, DE;
Alexander Hauk, Ludwigshafen, DE;
Stefan Gropp, Speyer, DE;
Anna Valeska Lohmann, Limburgerhof, DE;
Robert Heinz, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for producing a solid sodium diformate preparation having a formic acid content of at least 35% by weight based on the total weight of sodium diformate preparation, in which, at elevated temperature, an aqueous solution (E) is produced which comprises sodium formate and formic acid in a molar ratio of HCOOH:HCOONa of greater than 1.5:1 and which has a molar ratio of HCOOH:HO of at least 1.1:1, the aqueous solution (E) is brought to crystallization to obtain a solid phase (F) and a mother liquor (G), and the solid phase (F) is separated off from the mother liquor (G),