公开(公告)号：US3519641A

公开(公告)日：1970-07-07

申请号：US3519641D

申请日：1967-06-02

Applicant: BASF AG

Inventor： NITZSCHMANN ROBERT ,  KINDLER HUBERT ,  WELLENREUTHER GERHARD

IPC: C09B47/06

CPC classification number: C09B47/06

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：DE10062598A1

公开(公告)日：2002-06-27

申请号：DE10062598

申请日：2000-12-15

Applicant: BASF AG

Inventor： BROECKEL ULRICH ,  PALM PETER ,  NITZSCHMANN ROBERT ,  PURUCKER BERNHARD

IPC: B01J2/10 ,  C05G3/00 ,  C05G5/00

Abstract: Production of granular fertilizer (I), comprises: (A) supplying powdered fertilizer to a mixer; (B) continuously supplying liquid binder while operating the mixer and vortex generator; (C) carrying out the mixing process until granules of the required size are obtained; and (D) removing and drying the granules. Production of granular fertilizer (I), comprises: (A) supplying powdered fertilizer to a mixer having an annular, non-rotating mixing region, a central mixer carrying mixing tools occupying most of the mixing space and a rotating vortex generator in the mixing tool region; (B) continuously supplying liquid binder while operating the mixer and vortex generator at suitable rotation speed and peripheral velocity; (C) carrying out the mixing process until granules of the required size are obtained; and (D) removing and drying the granules.

公开(公告)号：GB2315435A

公开(公告)日：1998-02-04

申请号：GB9715376

申请日：1997-07-22

Applicant: BASF AG

Inventor： MEYER BERND ,  GRIMMER KARL ,  NITZSCHMANN ROBERT ,  PURUCKER BERNHARD ,  WUNDER RAINER ,  MECKL STEFAN ,  JAEGER MICHAEL ,  REUVERS JOHANNES ,  KLING GEORG

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 (1,2,3) introduced into the wash column are sprayed with a wash liquid (11) after their entry into the lower part of the wash column. The column is typically a filled column with waste gas distribution elements disposed below the filler and spray nozzles near the distributors.