公开(公告)号：DE3060747D1

公开(公告)日：1982-10-07

申请号：DE3060747

申请日：1980-05-02

Applicant: BASF AG

Inventor： PFORR GERHARD DR ,  PESCHAU GERHARD ,  SCHIPPMANN GUENTER ,  APPL MAX DR ,  VOELKL ERFRIED DR ,  STARK HANS DR

IPC: B01D46/34

Abstract: De-dusting of gases is carried out in an apparatus containing a granular-bed filter, the pourable granular filter medium flowing downward through the bed. The apparatus comprises a vessel of rectangular cross-section with a vertical side wall (4) extending from the top to the bottom. A partition (5), arranged parallel to the side wall (4), extends from the upper end of the vessel into the interior of the vessel. The remaining three side walls of the vessel extend - at least starting from a level corresponding to the lower end of the partition (5), taperingly downward to the outlet (9). The partition (5) is supported by the two walls adjacent to the vertical wall and forms, together with these and with the talus (7) of the filter medium, which arises at the lower end of the partition, a chamber (3) into which the inlet (2) for the gas to be purified opens. At the inlet (10) for the filter medium, located at the upper end of the partition, a further talus (12) of the filter medium forms, defining a collecting chamber (16), in which the outlet (17) for the purified gas is located.

公开(公告)号：DE19533214A1

公开(公告)日：1997-03-13

申请号：DE19533214

申请日：1995-09-08

Applicant: BASF AG

Inventor： PUETTER HERMANN DR ,  HUBER GUENTHER ,  SPISKE LUISE DR ,  STARK HANS DR ,  SCHLAEFER DIETER DR ,  PFORR GERHARD DR

IPC: C25C3/02 ,  C25B1/00 ,  C25C3/08

Abstract: Proposed is an electrolytic method for the production of sodium and aluminium chloride in an electrolytic cell with an aluminium anode and a sodium cathode separated from each other by a sodium-ion-conducting solid electrolyte. In the anode region, molten electrolyte containing essentially sodium tetrachloroaluminate is electrolysed, the aluminium chloride produced being evaporated out of the cell and the sodium produced being tapped off from the cathode region.

公开(公告)号：DE3769704D1

公开(公告)日：1991-06-06

申请号：DE3769704

申请日：1987-06-11

Applicant: BASF AG

Inventor： PFORR GERHARD DR ,  MEYER HERMANN DR ,  GOESELE WILHELM DR ,  STARK HANS DR

IPC: C01F7/60

Abstract: Anhydrous aluminum chloride is prepared by reacting gamma -alumina with carbon monoxide and chlorine and/or phosgene in a fluidized bed at from 400 DEG to 700 DEG C. The gamma -alumina used gives, with CuK alpha radiation, an X-ray diffraction pattern whose intensity at the diffraction angle 2(-)=42.8 DEG +/-0.4 DEG divided by the intensity at the diffraction angle 2(-)=45.7 DEG +/-0.2 DEG is

公开(公告)号：DE2210279A1

公开(公告)日：1973-09-20

申请号：DE2210279

申请日：1972-03-03

Applicant: BASF AG

Inventor： EBENHOECH FRANZ-LUDWIG DR ,  HANSEN KLAUS-PETER DR ,  STARK HANS DR

IPC: C09C1/24

Abstract: Finely divided ferric oxide, for use as a red transparent pigment in lacquers and plastics, is efficiently made in high yield by combustion of iron carbonyl in oxygen, in the presence of >=0.5 m3 excess O2, air and/or inert gas/mole iron carbonyl. The combustion is carried out at 250-800 degrees C but at temps. >500 degrees C, the dwell time of the ferric oxide in the combustion zone should be 30 secs. The product is collected using a cyclone separator and has a particle size 0.1 mu.

公开(公告)号：DE3620023A1

公开(公告)日：1987-12-17

申请号：DE3620023

申请日：1986-06-13

Applicant: BASF AG

Inventor： PFORR GERHARD DR ,  MEYER HERMANN DR ,  GOESELE WILHELM DR ,  STARK HANS DR

IPC: C01F7/60

Abstract: Anhydrous aluminum chloride is prepared by reacting gamma -alumina with carbon monoxide and chlorine and/or phosgene in a fluidized bed at from 400 DEG to 700 DEG C. The gamma -alumina used gives, with CuK alpha radiation, an X-ray diffraction pattern whose intensity at the diffraction angle 2(-)=42.8 DEG +/-0.4 DEG divided by the intensity at the diffraction angle 2(-)=45.7 DEG +/-0.2 DEG is

公开(公告)号：CH501357A

公开(公告)日：1971-01-15

申请号：CH707469

申请日：1969-05-08

Applicant: BASF AG

Inventor： STARK HANS DR ,  POMMER ERNST-HEINRICH DR ,  SCHULZE GERHARD DR

IPC: A01N47/04 ,  C07D215/32 ,  A01N9/14