公开(公告)号：ES2080540T3

公开(公告)日：1996-02-01

申请号：ES93102913

申请日：1993-02-25

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  RUPPEL WILHELM DR ,  MORSBACH BERND ,  REGENAUER WILLI

IPC: C07D319/24 ,  B01D53/44 ,  B01D53/86 ,  B01J23/28 ,  B01J23/30 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/00

公开(公告)号：DE4206599A1

公开(公告)日：1993-09-09

申请号：DE4206599

申请日：1992-03-03

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  RUPPEL WILHELM DR ,  MORSBACH BERND ,  REGENAUER WILLI

IPC: C07D319/24 ,  B01D53/44 ,  B01D53/86 ,  B01J23/28 ,  B01J23/30 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/00

公开(公告)号：DE3779887D1

公开(公告)日：1992-07-23

申请号：DE3779887

申请日：1987-12-17

Applicant: BASF AG

Inventor： MROSS WOLF DIETER DR ,  DREWS RONALD DR ,  SCHEIDSTEGER OLAF DR ,  HESS KLAUS DR ,  SCHACHNER HELMUT DR

IPC: B01D53/86 ,  B01J23/22 ,  B01J23/24 ,  B01J35/10 ,  B01D53/36

Abstract: In NOx removal from waste gases from coal combustion by selective catalytic redn. with ammonia in the presence of TiO2-based catalysts contg. catalytically effective amounts of oxides of V, W and/or Mo, the novelty is that the catalysts have a BET specific surface of 5-60 (pref. 10-50) sq.m./g., a pore vol. of 0.15-0.40 ml/g. and max. 35 (pref. max. 20)% content of pores with less than 200 Angstroms dia.

公开(公告)号：AT77256T

公开(公告)日：1992-07-15

申请号：AT87118715

申请日：1987-12-17

Applicant: BASF AG

Inventor： MROSS WOLF DIETER DR ,  DREWS RONALD DR ,  SCHEIDSTEGER OLAF DR ,  HESS KLAUS DR ,  SCHACHNER HELMUT DR

IPC: B01D53/86 ,  B01J23/22 ,  B01J23/24 ,  B01J35/10 ,  B01D53/36

公开(公告)号：DE3163332D1

公开(公告)日：1984-06-07

申请号：DE3163332

申请日：1981-01-19

Applicant: BASF AG

Inventor： BRAHA ALEXANDRU ,  DAUCHER HANS DR ,  HESS KLAUS DR ,  KROETZSCH PETER DR ,  MERKEL HELMUT ,  ROEDL ROLAND DR ,  SCHWAEGERL WALTER ,  STICKEL RICHARD

IPC: C02F3/12 ,  C02F3/30

公开(公告)号：DE2450205A1

公开(公告)日：1976-05-06

申请号：DE2450205

申请日：1974-10-23

Applicant: BASF AG

Inventor： HEMMER GERD ING GRAD ,  HESS KLAUS DR ,  BECKER ROLF DIPL ING DR ,  LIEBHABER KLAUS ING GRAD

IPC: F23G7/08 ,  F23D13/20

Abstract: A process for the quiet and smokeless flaring of process gases by sharp separation of the air intake and combustion steps. Compared with conventional off-gas flares, steam consumption is reduced and blow-back of the flame into the mixing tube is avoided by using a combined mixing and combustion chamber. This extends the operating range and life of flare facilities.

公开(公告)号：DE2400416A1

公开(公告)日：1975-07-24

申请号：DE2400416

申请日：1974-01-05

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  STICKEL RICHARD DIPL ING ,  NAGEL OTTO DR ,  SINN RICHARD PROF DR ING DR ,  DAUCHER HANS DIPL ING DR

IPC: C02F3/22 ,  B01F3/04 ,  B01F3/08 ,  B01F5/02 ,  C02F3/12 ,  C02C1/06

Abstract: Waste water and sewage, contg. biodegradable impurities, are treated in >=1 enclosures with dissolved oxygen and activated sludge. The contact between these three reacting materials is intensified by increasing the number of interfaces and by shortening the diffusion paths in the sludge floccules. Injectors are used to this effect with a liq. nozzle an annular, concentric nozzle for the gas and an impulse exchange tube. The jet of liq. leaves the nozzle at a speed of 29m/sec. and sets up a shear gradient in the activated sludge; the air bubbles are finely divided and at the same time the sludge is sucked into the zone of the jet and is intensely mixed in the tube. The sludge leaving the latter is satd. with oxygen and the gas it contains causes it to rise in the form of a bubbling column to the surface of the activated sludge, giving up its oxygen proportionally to the depth of immersion of the injector and the oxygen content of the gas. The quantity of sludge which can be treated per unit of vol. of a biological settlement plant per day can be increased by 100% as compared with known processes.