Patent search ap:("BASF AG") AND inv:"WILLERSINN CARL-HEINZ DIPL CHE" Page 1

1.

发明专利
未知

公开(公告)号：DE2449780A1

公开(公告)日：1976-04-29

申请号：DE2449780

申请日：1974-10-19

Applicant: BASF AG

Inventor： ENGELBACH HEINZ DIPL CHEM DR , KRABETZ RICHARD DIPL CHEM DR , DUEMBGEN GERD DIPL CHEM DR , WILLERSINN CARL-HEINZ DIPL CHE , FREY WALTER DIPL ING DR , LEBERT ULRICH DIPL CHEM DR , THIESSEN FRITZ DIPL CHEM DR

IPC: C07C51/00 , C07C51/44 , C07C51/48 , C07C57/07 , C07C67/00 , C07C57/04 , C07C51/32

Abstract: In the oxidation of propylene and/or acrolein, high-boiling or non-volatile byproducts are separated from the solvents used for absorbing the acrylic acid by treating the said solvents laden with byproducts with the hot reaction gases in such amounts that the major portion of the solvents evaporates, the residual solvent containing a high percentage of said byproducts then being discarded or worked up.

2.

发明专利
Process for regenerating reprocessing of damaged oxidation catalysts 未知

公开(公告)号：DE3151805A1

公开(公告)日：1983-07-07

申请号：DE3151805

申请日：1981-12-29

Applicant: BASF AG

Inventor： KRABETZ RICHARD DIPL CHEM DR , DUEMBGEN GERD DIPL CHEM DR , ENGELBACH HEINZ DIPL CHEM DR , WILLERSINN CARL-HEINZ DIPL CHE , ZIRKER GUENTER DIPL CHEM DR

IPC: B01J23/94 , C07C57/055

Abstract: This invention relates to a process for regenerating reprocessing of oxidation catalysts, which contain oxides of molybdenum, tungsten, copper and, if appropriate vanadium, by treatment with ammonia, a carboxylic acid or ammonium salt thereof and, if appropriate, hydrogen peroxide, with dissolution of the catalytically active metal components, evaporation of the water from the solution and heating of the resulting salt residue for activation.

3.

发明专利
Double heat exchanger for exothermic reactions - has set of tubes contg. catalyst which act as reactor tubes, with bundle above and below, having heat transfer medium around tubes 未知

公开(公告)号：DE2903582A1

公开(公告)日：1980-08-07

申请号：DE2903582

申请日：1979-01-31

Applicant: BASF AG

Inventor： DUEMBGEN GERD DIPL CHEM DR , ENGELBACH HEINZ DIPL CHEM DR , KRABETZ RICHARD DIPL CHEM DR , SCHAUER HORST DIPL ING , WILLERSINN CARL-HEINZ DIPL CHE

IPC: B01J8/06

Abstract: Tubular reactor is for carrying out gas phase catalytic reactions. Two tube bundles are used above and below a common inlet branch (or outlet). The gas stream divides and flows out from either end of the vessel. On the cooling side, distributor plates are used to give uniform coolant flow along the walls of the tubes. The apertures on these increase towards the centre. A further baffle is used in the cooling side at the level of max. heat release. Used for strongly exothermic gas phase catalytic reaction. Can also be used on endothermic reactions. The capacity is not limited by the heat transfer factors nor by the construction.

4.

发明专利
未知

公开(公告)号：DE2626887A1

公开(公告)日：1977-12-22

申请号：DE2626887

申请日：1976-06-16

Applicant: BASF AG

Inventor： KRABETZ RICHARD DIPL CHEM DR , HERRMANN WALTER DIPL ING DR , SCHOLZ NORBERT ING GRAD , ENGELBACH HEINZ DIPL CHEM DR , ENGERT GERD-JUERGEN DIPL CHEM , WILLERSINN CARL-HEINZ DIPL CHE , DUEMBGEN GERD DIPL CHEM DR , THIESSEN FRITZ DIPL CHEM DR

IPC: B01J23/00 , B01J23/24 , B01J23/28 , B01J23/30 , B01J23/31 , B01J23/34 , B01J23/88 , B01J23/89 , B01J37/02 , C07B61/00 , C07C51/00 , C07C51/25 , C07C57/055 , C07C67/00

Abstract: Catalysts which consist of a molded carrier, the surface of which is coated with an active catalyst composition of the general formula Mo12AaBbCcDdOx, where A is V and/or W, B is Cu and/or Fe and/or Mn and/or Ni and/or Cr, C is Nb and/or Ta and/or Bi and/or Sb and/or Sn and/or Th and/or Ce and/or U, D is Li and/or Na and/or K and/or Rb and/or Cs and/or Tl and a is from 0.1 to 18, b is from 0 to 8, c is from 0 to 10, d is from 0 to 2 and x is from 36 to 135, which are particularly active and selective for the oxidation of acrolein and methacrolein with oxygen-containing gases to give acrylic acid and methacrylic acid, respectively, are obtained by first manufacturing the catalyst composition, before applying it to the carrier, from thermally easily decomposed salts of the components by mixing aqueous solutions, slurries or moist solid masses of the salts of the components, drying the mixture and calcining the dried composition at from 140 DEG to 600 DEG C., then milling it to a particle size of less than 150 mu m and thereafter applying it, as a mixture with water, as a layer from 10 to 1,500 mu m thick, to the premolded carrier, which has a rough surface.