公开(公告)号：NO20062261L

公开(公告)日：2006-07-27

申请号：NO20062261

申请日：2006-05-19

Applicant: BASF AG

Inventor： HEINZ ROBERT ,  HAUK ALEXANDER ,  LENZ ROBERT ,  LOHMANN ANNA VALESKA ,  KARL JORN ,  PASCHOLD JUERGEN ,  GROPP STEFAN ,  LETZELTER THOMAS

IPC: C07C51/41 ,  C07C51/09 ,  C07C53/02 ,  C07C53/06

Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.

公开(公告)号：CA2544200A1

公开(公告)日：2005-05-19

申请号：CA2544200

申请日：2004-11-05

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  PASCHOLD JUERGEN ,  KARL JOERN ,  LOHMANN ANNA VALESKA ,  GROPP STEFAN ,  LENZ ROBERT ,  LETZELTER THOMAS ,  HEINZ ROBERT

IPC: C07C51/09 ,  C07C51/41 ,  C07C53/02 ,  C07C53/06

Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.

公开(公告)号：NO339944B1

公开(公告)日：2017-02-20

申请号：NO20075631

申请日：2007-11-06

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  GROPP STEFAN ,  LENZ ROBERT ,  RIECK DANIELA ,  HEILEK JÖRG ,  LAUX GERHARD

IPC: C07C51/41 ,  C07C53/06

公开(公告)号：BRPI0611654A2

公开(公告)日：2011-05-31

申请号：BRPI0611654

申请日：2006-05-02

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  GROPP STEFAN ,  RIECK DANIELA ,  HEILEK JOERG ,  LAUX GERHARD ,  LENZ ROBERT

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

Abstract: The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream (14) comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.

公开(公告)号：AT364034T

公开(公告)日：2007-06-15

申请号：AT04797653

申请日：2004-11-05

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  KARL JOERN ,  PASCHOLD JUERGEN ,  GROPP STEFAN ,  LOHMANN ANNA ,  LENZ ROBERT ,  LETZELTER THOMAS ,  HEINZ ROBERT

IPC: C07C51/09 ,  C07C51/41 ,  C07C53/02 ,  C07C53/06

Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.

公开(公告)号：CA2604070A1

公开(公告)日：2006-10-19

申请号：CA2604070

申请日：2006-04-12

Applicant: BASF AG

Inventor： LOHMANN ANNA VALESKA ,  DIEBOLD GERD ,  RUEHLE ROBERT ,  SCHMITT RUEDIGER ,  HAUK ALEXANDER ,  FEUERSTEIN DIETER ,  HEINZ ROBERT ,  MACHHAMMER OTTO ,  GROPP STEFAN

IPC: C07C53/06 ,  A23K1/16 ,  A23L1/18 ,  C07C51/02

Abstract: The invention relates to a method for producing and using a solid sodium diformate having a high formic acid content, to the use thereof in animal foods in the form of an acidifier, preservatives, ensilage auxiliary agents, fertilisers and a growth- and productivity-stimulating agent and the inventi ve animal food additives containing sodium diformate.

公开(公告)号：NO20062261A

公开(公告)日：2006-07-27

申请号：NO20062261

申请日：2006-05-19

Applicant: BASF AG

Inventor： HEINZ ROBERT ,  HAUK ALEXANDER ,  LENZ ROBERT ,  LOHMANN ANNA VALESKA ,  KARL JORN ,  PASCHOLD JUERGEN ,  GROPP STEFAN ,  LETZELTER THOMAS

IPC: C07C51/41 ,  C07C51/09 ,  C07C53/02 ,  C07C53/06

CPC classification number: C07C51/412 ,  C07C53/06 ,  C07C53/02

公开(公告)号：DE102004022135A1

公开(公告)日：2005-11-24

申请号：DE102004022135

申请日：2004-05-05

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  KARL JOERN ,  PASCHOLD JUERGEN ,  LENZ ROBERT ,  HEINZ ROBERT ,  GROPP STEFAN ,  LETZELTER THOMAS ,  LOHMANN ANNA VALESKA

IPC: A23K1/16 ,  C07C51/41 ,  C07C51/44 ,  C07C53/06

Abstract: A method for preparing formic acid formates (A) comprises supplying separate liquid streams of formic acid (stream I) and a metal formate (stream II) to a rectification column, with II supplied at the same height as I, or at a higher position. Water is separated as overhead and an (A)-containing sump product is recovered. The sump product is recovered as a melt containing less than 0.5 wt.% water.

公开(公告)号：DE10232812A1

公开(公告)日：2004-02-05

申请号：DE10232812

申请日：2002-07-19

Applicant: BASF AG

Inventor： GROPP STEFAN ,  MUELLER PATRIC ,  HEILEK JOERG ,  WEIGL HAGEN

IPC: C07C51/43 ,  C07B63/00 ,  C07B41/08 ,  C07C59/10 ,  C07C59/105

Abstract: A process for the purification of polymethylolalkanoic acids or monomethylolalkanoic acids comprises oxidation of the corresponding alkanal using an aqueous solution of hydrogen peroxide, crystallization followed by a solid-liquid separation whereby following the solid-liquid separation the mother liquor associated with the resulting crystallizate is diluted with a solvent or solvent mixture. A process for the purification of polymethylolalkanoic acids or monomethylolalkanoic acids of formula (1) comprises oxidation of the corresponding alkanal of formula (2) using an aqueous solution of hydrogen peroxide, crystallization followed by a solid-liquid separation whereby following the solid-liquid separation the mother liquor (M1), associated with the resulting crystallizate (FK1) is diluted with a solvent or solvent mixture (L1) such that the dilute mother liquor (M1) is separated to yield the crystallizate (FK2).

公开(公告)号：CA2607099C

公开(公告)日：2013-07-09

申请号：CA2607099

申请日：2006-05-02

Applicant: BASF AG

Inventor： HAUK ALEXANDER ,  GROPP STEFAN ,  LENZ ROBERT ,  RIECK DANIELA ,  HEILEK JORG ,  LAUX GERHARD

IPC: C07C51/41 ,  C07C53/02 ,  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.