公开(公告)号：NO931059L

公开(公告)日：1993-09-27

申请号：NO931059

申请日：1993-03-23

Applicant: BASF AG

Inventor： WUNDER RAINER ,  NITZSCHMANN ROBERT E ,  MEYER BERND ,  KLING GEORG ,  MINX EKKEHARD ,  PURUCKER BERNHARD ,  GRIMMER KARL ,  JAEGER MICHAEL

IPC: B01D53/58 ,  B01D47/14 ,  C02F1/16

公开(公告)号：NO910094A

公开(公告)日：1991-07-11

申请号：NO910094

申请日：1991-01-09

Applicant: BASF AG

Inventor： WUNDER RAINER ,  NITZSCHMANN ROBERT E ,  MEYER BERND

IPC: B01D53/58 ,  C05C1/00 ,  B01D53/14

CPC classification number: B01D53/58 ,  C05C1/00 ,  Y02A50/2346

Abstract: In a process for the removal of ammonia, and, if required, dust, from waste gases which arise in the production of fertilizers, the waste gases are treated in an absorption zone with a circulated ammonium nitrate solution. The ammonium nitrate solution has a temperature theta of 20 to 100 DEG C and, at the entry to the absorption zone, a pH of at least a value given by the following formula in which Y denotes the ammonia concentration of the gas to be treated in mg/m

公开(公告)号：GB2315434A

公开(公告)日：1998-02-04

申请号：GB9715375

申请日：1997-07-22

Applicant: BASF AG

Inventor： MEYER BERND ,  GRIMMER KARL ,  NITZSCHMANN ROBERT ,  JAEGER MICHAEL ,  PURUCKER BERNHARD ,  WUNDER RAINER

IPC: B01D53/58 ,  B01D53/78 ,  C05B11/06 ,  C05G1/06

Abstract: In a process and an apparatus for the joint purification in a wash column (VII) by means of a washing liquid (5) of the waste gases (1,3) and/or vapors (2) formed in the production of inorganic fertilizers, the waste gases and/or vapors are supplied to the wash column in at least two separate streams (1-3). One of the streams is a collective waste gas stream which contains the waste gases and/or vapors with a high water content and high proportion of ammonia. The other stream is a collective waste gas stream with a low water content and low content of ammonia. Apparatus for the purification is typically a filled column with at least two supply lines for waste gas/vapours connected to separate gas distributors in the wash column.

公开(公告)号：NO931059A

公开(公告)日：1993-09-27

申请号：NO931059

申请日：1993-03-23

Applicant: BASF AG

Inventor： WUNDER RAINER ,  NITZSCHMANN ROBERT E ,  MEYER BERND ,  KLING GEORG ,  MINX EKKEHARD ,  PURUCKER BERNHARD ,  GRIMMER KARL ,  JAEGER MICHAEL

IPC: B01D53/58 ,  B01D47/14 ,  C02F1/16

CPC classification number: B01D53/58

公开(公告)号：NO931059D0

公开(公告)日：1993-03-23

申请号：NO931059

申请日：1993-03-23

Applicant: BASF AG

Inventor： WUNDER RAINER ,  NITZSCHMANN ROBERT E ,  MEYER BERND ,  KLING GEORG ,  MINX EKKEHARD ,  PURUCKER BERNHARD ,  GRIMMER KARL ,  JAEGER MICHAEL

IPC: B01D53/58 ,  B01D

公开(公告)号：FI910106A0

公开(公告)日：1991-01-09

申请号：FI910106

申请日：1991-01-09

Applicant: BASF AG

Inventor： WUNDER RAINER ,  NITZSCHMANN ROBERT E ,  MEYER BERND

IPC: B01D53/34 ,  B01D53/58 ,  C05C1/00 ,  B01D