公开(公告)号：US3489515A

公开(公告)日：1970-01-13

申请号：US51589665

申请日：1965-12-23

Applicant: BASF AG

Inventor： JOCKERS KURT ,  KRAUSS KURT ,  THEOBALD HEINZ

IPC: C01B21/24 ,  C01B21/26

CPC classification number: C01B21/26 ,  C01B21/24

公开(公告)号：GB1058970A

公开(公告)日：1967-02-15

申请号：GB5490865

申请日：1965-12-28

Applicant: BASF AG

Inventor： JOCKERS KURT ,  KRAUSS KURT ,  THEOBALD HEINZ

IPC: C01B21/24 ,  C01B21/26

Abstract: NO obtained by the catalytic oxidation of NH3 in the presence of steam and containing NO2 and H2O is purified by indirect cooling to 80-92 DEG C. to remove 70-85% of the water as nitric acid of less than 1% concentration, followed by direct cooling with nitric acid of at least 15% concentration, which is recycled. The oxidation may be effected at 850-900 DEG C. using a Pt-Rh catalyst, and the gases leave at 130-150 DEG C. The recycle acid may be cooled indirectly with water and/or brine to 13-42 DEG C., and preferably has a concentration of 18-21%; part is withdrawn as product.

公开(公告)号：GB843597A

公开(公告)日：1960-08-04

申请号：GB1118259

申请日：1959-04-02

Applicant: BASF AG

Inventor： KRAUSS KURT ,  DIEKMANN HEINRICH

IPC: C01B21/24 ,  C01B21/26

Abstract: Nitric oxide is produced by reaction of ammonia (1 volume) with oxygen (1.28-1.4, e.g. 1.33 volumes) in presence of (a) a Pt (e.g. Pt-Rh) catalyst and (b) steam. Preferably the steam is separated from the reaction gas by condensation as dilute nitric acid, the latter being used to wash the reaction gas; it is particularly preferred to treat the washed gas with an alkaline reagent such as 10% NaOH.

公开(公告)号：FR1462040A

公开(公告)日：1966-12-09

申请号：FR44127

申请日：1965-12-29

Applicant: BASF AG

Inventor： JOCKERS KURT ,  KRAUSS KURT ,  THEOBALD HEINZ

IPC: C01B21/24 ,  C01B21/26

Abstract: NO obtained by the catalytic oxidation of NH3 in the presence of steam and containing NO2 and H2O is purified by indirect cooling to 80-92 DEG C. to remove 70-85% of the water as nitric acid of less than 1% concentration, followed by direct cooling with nitric acid of at least 15% concentration, which is recycled. The oxidation may be effected at 850-900 DEG C. using a Pt-Rh catalyst, and the gases leave at 130-150 DEG C. The recycle acid may be cooled indirectly with water and/or brine to 13-42 DEG C., and preferably has a concentration of 18-21%; part is withdrawn as product.

公开(公告)号：FR1219747A

公开(公告)日：1960-05-19

申请号：FR791292

申请日：1959-04-06

Applicant: BASF AG

Inventor： KRAUSS KURT ,  DIEKMANN HEINRICH

IPC: C01B21/36