公开(公告)号：MY139280A

公开(公告)日：2009-09-30

申请号：MYPI20043085

申请日：2004-07-30

Applicant: BASF AG

Inventor： FRAUENKRON MATTHIAS DR ,  MILLER CHRISTIAN ,  KRUG THOMAS ,  EVERS HOLGER DR ,  MELDER D JOHANN-PETER ,  ROETTGER RODERICH DR ,  SIEGERT MARKUS DR ,  GERLACH TILL DR ,  NOUWEN JAN DR ,  DAHLHOFF ELLEN DR

IPC: C07C209/60 ,  C07C209/64 ,  C07C211/14

Abstract: PROCESS FOR THE PREPARATION OF ETHYLENAMINES,IN PARTICULAR DIETHYLENETRIAMINE (DETA), BY CONTINUOUS REACTION OF ETHYLENEDIAMINE (EDA) IN THE PRESENCE OF A HETEROGENEOUS CATALYST, WHERE THE REACTION IS CARRIED OUT IN A REACTION COLUMN.

公开(公告)号：MY137678A

公开(公告)日：2009-02-27

申请号：MYPI20045307

申请日：2004-12-22

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  JOHANN THORSTEN DR ,  WEBER MARKUS DR ,  LANG NEVEN DR ,  HARTH KLAUS DR ,  STROEFER ECKHARD DR ,  FIENE MARTIN DR ,  SIEGERT MARKUS DR

IPC: B01J8/02 ,  B01J8/04 ,  B01J19/24 ,  C07C45/38 ,  F28D9/00

Abstract: A process for preparing formaldehyde by gas-phase oxidation of methanol vapor by means of a gas stream comprising molecular oxygen in the presence of a fixed-bed catalyst comprising iron and molybdenum, wherein the process is carried out in a reactor ( 1 ) having heat-exchange plates ( 2 ) which are arranged in the longitudinal direction of the reactor ( 1 ) and have a spacing between them and through which a heat transfer medium flows, inlet and outlet facilities ( 3, 4 ) for the heat transfer medium to the heat-exchange plates ( 2 ) and also gaps ( 5 ) between heat-exchange plates ( 2 ) in which the fixed-bed catalyst is present and into which the methanol vapor and the gas stream comprising molecular oxygen are passed, is described.

公开(公告)号：MY148455A

公开(公告)日：2013-04-30

申请号：MYPI20044270

申请日：2004-10-15

Applicant: BASF AG

Inventor： SIEGERT MARKUS DR ,  MELDER JOHANN-PETER DR ,  KRUG THOMAS ,  NOUWEN JAN DR

IPC: B01D3/14 ,  B01D3/32 ,  B01J19/32 ,  C07C209/84 ,  C07C209/86 ,  C07C211/10 ,  C07C211/14 ,  C07C213/10 ,  C07C215/08 ,  C07C215/14 ,  C07D295/023

Abstract: A PROCESS FOR DISTILLATIVELY SEPARATING MIXTURES COMPRISING ETHYLENAMINES, WHEREIN THE SEPARATION IS CARRIED OUT IN ONE OR MORE DIVIDING WALL COLUMNS AND WHEREIN THE ETHYLENAMINES ARE IN PARTICULAR ETHYLENEDIAMINE (EDA), PIPERAZINE (PIP), DIETHYLENETRIAMINE (DETA), AMINOETHYLETHANOLAMINE (AEEA) AND/OR MONOETHANOLAMINE (MEOA).

公开(公告)号：MY138442A

公开(公告)日：2009-06-30

申请号：MYPI20053647

申请日：2005-08-04

Applicant: BASF AG

Inventor： SIEGERT MARKUS DR ,  LANG NEVEN DR ,  STROEFER ECKHARD DR ,  STAMMER ACHIM DR ,  FRIESE THORSTEN

Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR DISTILLATIVELY REMOVING PURE TRIOXANE FROM A FEEDSTREAM (I) COMPRISING TRIOXANE IN A PROPORTION OF AT LEAST 50% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE FEEDSTREAM (I), AND ADDITIONALLY FORMALDEHYDE AND WATER, WHICH COMPRISES FEEDING THE FEEDSTREAM I AND A FURTHER AQUEOUS STREAM (II) WHICH DOES NOT CONTAIN ANY COMPONENTS EXTRANEOUS TO THE FEEDSTREAM TO A DIVIDING WALL COLUMN (TWK1) HAVING A DIVIDING WALL TW WHICH IS ARRANGED SUBSTANTIALLY PERPENDICULARLY AND DIVIDES THE COLUMN INTERIOR INTO A FEED REGION (A1), A WITHDRAWAL REACTION (B1), AN UPPER COMBINED COLUMN REGION (C1) AND A LOWER COMBINED COLUMN REGION (D1), AND DRAWING OFF FROM THE FIRST DIVIDING WALL COLUMN (TWK1) A BOTTOM STREAM (III) COMPRISING PURE TRIOXANE AND A SIDESTREAM (IV) AT THE WITHDRAWAL REGION (B1), COMPRISING PURE WATER.FIG. 1

公开(公告)号：MY137873A

公开(公告)日：2009-03-31

申请号：MYPI20045310

申请日：2004-12-22

Applicant: BASF AG

Inventor： SIEGERT MARKUS DR ,  LANG NEVEN DR ,  STROEFER ECKHARD DR ,  STAMMER ACHIM DR ,  FRIESE THORSTEN ,  HASSE HANS PROF DR

IPC: C07D323/06

Abstract: A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I of formaldehyde as the main component and trioxane and water as the secondary components, b) mixing the use stream I with a recycle stream VII to obtain a feed stream Ia, c) distilling the use stream Ia in a first distillation stage to obtain a stream II of formaldehyde as the main component and water as the secondary component, and a stream III of trioxane as the main component and water and formaldehyde as the secondary components, d) distilling the stream III in a second distillation stage having a pressure higher than in the first distillation stage, to obtain a stream IV of trioxane and a stream V of trioxane as the main component and water and formaldehyde as the secondary components, e) distilling the stream V in a third distillation stage to obtain a stream VI of water and the recycle stream VII of trioxane as the main component and water and formaldehyde as the secondary components.

公开(公告)号：MY137862A

公开(公告)日：2009-03-31

申请号：MYPI20043086

申请日：2004-07-30

Applicant: BASF AG

Inventor： FRAUENKRON MATTHIAS DR ,  EVERS HOLGER DR ,  MELDER JOHANN-PETER DR ,  SIEGERT MARKUS DR ,  GERLACH TILL DR

IPC: C07C209/16 ,  C07C211/10 ,  C07C211/14

Abstract: PREPARATION OF ETHYLENEAMINES BY REACTING MONOETHANOLAMINE (MEOA) WITH AMMONIA IN THE PRESENCE OF A CATALYST IN A REACTOR (1) AND SEPARATING THE RESULTING REACTION PRODUCT, WHERE ETHYLENEDIAMINE (EDA) OBTAINED IN THE SEPARATION IS REACTED IN A SEPARATE REACTOR (2) IN THE PRESENCE OF A CATALYST TO GIVE DIETHYLENETRIAMINE (DETA), AND THE RESULTING REACTION PRODUCT IS PASSED TO THE SEPARATION OF THE REACTION PRODUCT RESULTING FROM REACTOR 1. (FIGURE 2)