-
公开(公告)号：NO20075631L
公开(公告)日：2008-02-01
申请号：NO20075631
申请日：2007-11-06
Applicant: BASF AG
Inventor： HAUK ALEXANDER , GROPP STEFAN , LENZ ROBERT , RIECK DANIELA , HEILEK JORG , LAUX GERHARD
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：DE502004005760D1
公开(公告)日：2008-01-31
申请号：DE502004005760
申请日：2004-04-16
Applicant: BASF AG
Inventor： KLASS KATRIN , BECKER HEIKE , VOGELSANG REGINA , HAUK ALEXANDER , SIEGERT MARKUS , HENKELMANN JOCHEM
Abstract: A process for continuously preparing methyl vinyl ether by reacting methanol with ethyne in the liquid phase in the presence of a basic alkali metal or alkaline earth metal compound at a temperature of from 40 to 300° C. and a pressure of from 0.1 to 5 MPa abs, by carrying out the reaction in the absence of a continuous gas phase and at a methyl vinyl ether concentration in the entire liquid phase of
-
公开(公告)号：DE502004005217D1
公开(公告)日：2007-11-22
申请号：DE502004005217
申请日：2004-06-08
Applicant: BASF AG
Inventor： KLASS KATRIN , BECKER HEIKE , VOGELSANG REGINA , HAUK ALEXANDER , SIEGERT MARKUS , HENKELMANN JOCHEM
Abstract: Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2 (I) and alcohol of the general formula (II) R2—OH (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.
-
公开(公告)号：AT375328T
公开(公告)日：2007-10-15
申请号：AT04739689
申请日：2004-06-08
Applicant: BASF AG
Inventor： KLASS KATRIN , BECKER HEIKE , VOGELSANG REGINA , HAUK ALEXANDER , SIEGERT MARKUS , HENKELMANN JOCHEM
Abstract: Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2 (I) and alcohol of the general formula (II) R2—OH (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.
-
公开(公告)号：DE502004004050D1
公开(公告)日：2007-07-19
申请号：DE502004004050
申请日：2004-11-05
Applicant: BASF AG
Inventor： HAUK ALEXANDER , KARL JOERN , PASCHOLD JUERGEN , GROPP STEFAN , LOHMANN ANNA VALESKA , LENZ ROBERT , LETZELTER THOMAS , HEINZ ROBERT
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.
-
Patent Agency Ranking
公开(公告)号：DE102005063109A1
公开(公告)日：2007-07-05
申请号：DE102005063109
申请日：2005-12-30
Applicant: BASF AG
Inventor： HAUK ALEXANDER , GROPP STEFAN , DIEBOLD GERD , WEIGEL FLORIAN , LAUX GERHARD
IPC: C07C53/122 , A23K1/16 , A23L1/30 , C07C51/41 , C07C51/42
Abstract: Propionic acid-containing composition (A) in solid and preferably pure form, comprises at least a metal compound (I). Propionic acid-containing composition (A) in solid and preferably pure form, comprises at least a metal compound (I) of formula ((M(n+))(H +>) x(CH 3CH 2C(O)O ->) (n+x)). M(n+) : n-valent alkalimetal- or alkaline earth metal cation; n : 1 or 2; and x : 0.25-5. Provided that when M(n+) is potassium, then x is not equal to 0.75-1.75. An independent claim is also included for the preparations of (A) comprising: either heating a neutral alkalimetal- and/or alkaline earth metal propionate and propionic acid in a molar ratio of 1:0.25 to 1:5 to give a homogeneous mixture and partially solidifying the homogeneous mixture, where the homogeneous mixture contains less than 1 wt.% of water; or heating a neutral alkalimetal- and/or alkaline earth metal propionate and propionic acid in a molar ratio of 1:0.25 to 1:5 to give a homogeneous mixture and crystallizing the homogeneous mixture, where the homogeneous mixture contains 1-15 wt.% of water and the molar ratio of the neutral alkali metal- and/or alkaline earth metal propionate to propionic acid is 1:0.75 to 1:1.75 if M(n+) is potassium.
-
公开(公告)号：DE102005062931A1
公开(公告)日：2007-07-05
申请号：DE102005062931
申请日：2005-12-29
Applicant: BASF AG
Inventor： HAUK ALEXANDER , GROPP STEFAN , LOHMANN ANNA VALESKA , HEINZ ROBERT
Abstract: Preparation of a solid sodium formate preparation comprises (i) preparing an aqueous solution, which exhibits formic acid, sodium formate and water; (ii) subjecting the aqueous solution to crystallization and separating a solid phase from mother liquor; (iii) supplying the mother liquor during the production of the aqueous solution, to a distilling device; (iv) mixing the mother liquor with a sodium-containing base to form a mixture containing sodium formate and formic acid; (v) mixing the mixture with formic acid; and (vi) removing the water by withdrawing from the distilling device. Preparation of a solid sodium formate preparation with a content of at least 35 wt.% of formic acid, comprises: (i) at increased temperature, preparing an aqueous solution, which exhibits a molar ratio of formic acid and sodium formate of more than 1.5:1 and a molar ratio of formic acid and water of at least 1.1:1; (ii) subjecting the aqueous solution to crystallization and separating a solid phase from mother liquor; (iii) supplying the mother liquor, optionally after removal of a partial quantity of the mother liquor, during the production of the aqueous solution, to a distilling device; (iv) mixing the mother liquor with a sodium-containing base to form a mixture containing sodium formate and formic acid; (v) mixing the mixture with formic acid under receipt of the aqueous solution; and (vi) removing the water that is not needed for the production of the aqueous solution, by withdrawing from the distilling device.
-
公开(公告)号：NO20071045L
公开(公告)日：2007-03-22
申请号：NO20071045
申请日：2007-02-23
Applicant: BASF AG
Inventor： HAUK ALEXANDER , KARL JORN
IPC: C07C53/02
Abstract: The present invention relates to a process for preparing formic acid by thermally decomposing ammonium formates of tertiary amines A, wherein the tertiary amine A on which the ammonium formate is based has a boiling point at atmospheric pressure in the range from 105 to 175° C.
-
公开(公告)号：DE102005017089A1
公开(公告)日：2006-10-19
申请号：DE102005017089
申请日：2005-04-13
Applicant: BASF AG
Inventor： HAUK ALEXANDER , DIEBOLD GERD , FEUERSTEIN DIETER , RUEHLE ROBERT , MACHHAMMER OTTO , GROPP STEFAN
Abstract: Solid sodium diformate (I), comprising at least 35 wt.% of formic acid, is new. Independent claims are also included for: (1) the preparation of (I); and (2) a solid feed additive comprising (I), where the feed additive is essentially free of potassium ions.
-
公开(公告)号：ZA200502074B
公开(公告)日：2006-05-31
申请号：ZA200502074
申请日：2005-03-11
Applicant: BASF AG
Inventor： KARL JOERN , HAUK ALEXANDER , BOEHLING RALF , LENZ ROBERT , ADAMI CHRISTOPH , PASTRE JOERG
IPC: A23K20060101 , A23L20060101 , A61L20060101 , C07C20060101 , C07C51/09 , C07C51/43 , C07C51/44
Abstract: A method for the production of formic acid-formates (I) involves (a) partial hydrolysis of methyl formate (MF) with water, (b) distillation to give formic acid and water (stream S1) and (c) combination of (S1) with the corresponding formate (F) to give a mixture of (I) and water. An Independent claim is also included for apparatus for the production of (I), comprising a reactor (A) for the hydrolysis of MF, a distillation column (B) for separating a stream containing MF, formic acid, methanol and water into MF, methanol and a stream (S1) containing formic acid and water, and a column (E) for removing water from S1.
-
-
-
-
-
-
-
-
-
Search Results
90
records
(took 0.022 seconds)
