公开(公告)号：EP1968929A2

公开(公告)日：2008-09-17

申请号：EP06841649.4

申请日：2006-12-29

Applicant: BASF SE

Inventor： HAUK, Alexander ,  GROPP, Stefan ,  DIEBOLD, Gerd ,  WEIGEL, Florian ,  LAUX, Gerhard

IPC: C07C51/41 ,  C07C53/122 ,  A23K1/16 ,  A23K1/175

CPC classification number: C07C51/412 ,  A23K20/105 ,  A23K20/22 ,  A23K20/24 ,  A23K40/10 ,  A23K50/00 ,  A23K50/30 ,  A23K50/75 ,  C07C53/122

Abstract: The invention relates to compositions containing propionic acid in a solid and essentially pure form, said compositions also containing at least one compound of formula (I) (Mn+)(H+)x(CH3CH2C(O)O-)(n+x), wherein Mn+ represents an n-valency alkali metal or alkaline earth metal cation, n being equal to 1 or 2, and x represents a number between 0.25 and 5, with the proviso that x does not represent a number between 0.75 and 1.75 when Mn+ represents potassium. The invention also relates to a method for producing such compositions containing propionic acid, and to the use of such compositions as ensilage auxiliary agents, conservation agents, acidifiers, food supplements, animal feed, or animal feed additives.

公开(公告)号：EP1879844B1

公开(公告)日：2011-04-06

申请号：EP06742766.6

申请日：2006-05-02

Applicant: BASF SE

Inventor： HAUK, Alexander ,  LAUX, Gerhard ,  HEILEK, Jörg ,  RIECK, Daniela ,  LENZ, Robert ,  GROPP, Stefan

IPC: C07C51/41 ,  C07C53/06 ,  C07C53/02

CPC classification number: C07C51/412 ,  C07C53/06

Abstract: The invention relates to a method for producing a solid sodium diformate preparation having a minimum formic acid concentration of 35 percent by weight relative to the total weight of the sodium diformate preparation. According to said method, an aqueous solution having a molar ratio HCOOH: HCOONa of more than 1.5:1 and a molar ratio HCOOH: H2O of at least 1.1:1 is produced from sodium formate and at least 74 percent by weight of formic acid at an elevated temperature, the aqueous solution is crystallized, and the solid phase is separated from the mother liquor. (i) A partial amount (A) of the mother liquor is used during the production of the aqueous solution while (ii) a partial amount (B) of the mother liquor is mixed with a sodium-containing base and the obtained sodium formate-containing mixture is also used during the production of the aqueous solution, optionally after separating a portion of the same and optionally after concentrating the same, the partial amounts (A) and (B) of the mother liquor amounting to 100 percent by weight.