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公开(公告)号：JPS5463000A
公开(公告)日：1979-05-21
申请号：JP9915478
申请日：1978-08-16
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , KARTTE KLAUS DR , THOMAS ERWIN , MATSUMOTO GENYA
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公开(公告)号：DE2138930A1
公开(公告)日：1973-02-15
申请号：DE2138930
申请日：1971-08-04
Applicant: BASF AG
Inventor： KAHR KURT DR , POHL HANNS DR , RAPP GUENTHER DR , LAUX PETER DIPL ING
IPC: C07C20060101 , C07C131/04
Abstract: Water is partially removed from cyclohexanone oxime (I) by treating the impure I at a bove the m.pt in counter current in an extn. column, with a conc. ammonium and/or hydroxylammonium salt soln., sepng. the salt soln from I with reduced water content, concentrating the soln by evapn. and using it again for partial removal of water from I. The I is more suitable for prodn of caprolactam. The process is continuous. Residues of cyclohexanone in I are completely removed, with conversion to I during the removal of water.
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公开(公告)号：DE3260249D1
公开(公告)日：1984-07-19
申请号：DE3260249
申请日：1982-07-15
Applicant: BASF AG
Inventor： GROSSKINSKY OTTO-ALFRED DR , FROMMER ELMAR DR , RAPP GUENTHER DR , THOMAS ERWIN
IPC: C07C239/08 , B01J23/42 , C01B21/14 , C07C67/00 , C07C239/00
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公开(公告)号：DE2860907D1
公开(公告)日：1981-11-05
申请号：DE2860907
申请日：1978-09-22
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , THOMAS ERWIN , MUENSTER ROLF , CAFFALL BRODUS E , CYR PHILIPP A , JONES THOMAS M
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公开(公告)号：DE2860073D1
公开(公告)日：1980-11-13
申请号：DE2860073
申请日：1978-08-09
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , THOMAS ERWIN , WOLF DIETER DR , KUERTEN HERIBERT , ZEHNER PETER DR
Abstract: Hydroxylammonium salts are manufactured by a process comprising the catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid in the presence of a suspended platinum catalyst at an elevated temperature, wherein the reaction mixture is recycled and the gas mixture, containing nitric oxide and hydrogen, present in the gas space above the reaction zone, is introduced, by means of one or more downwardly directed jets of liquid, consisting of the recycled reaction mixture and issuing from a nozzle orifice, into one or more circulation zones which are present in the reaction zone, are open at both sides, extend in the direction of the entering jet of liquid and are completely covered by the reaction mixture, the reaction mixture leaving the bottom of the circulation zone and containing unconverted gases is deflected, passed upwards in the annular zone externally surrounding the circulation zone, and at the same time reaction mixture of low gas content is recycled from a separation zone located under the reaction zone.
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Patent Agency Ranking
公开(公告)号：CA1203072A
公开(公告)日：1986-04-15
申请号：CA406859
申请日：1982-07-08
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , GROSSKINSKY OTTO-ALFRED , FROMMER ELMAR , RAPP GUENTHER
IPC: C07C239/08 , B01J23/42 , C01B21/14 , C07C67/00 , C07C239/00
Abstract: Hydroxylammonium salts are prepared by an improved process, wherein nitric oxide is reduced catalytically with hydrogen in a dilute aqueous solution of a mineral acid in the presence of a suspended supported platinum catalyst and at elevated temperatures, and wherein the improvement comprises avoiding the formation of foam at the surface of the reaction mixture.
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公开(公告)号：DE3264817D1
公开(公告)日：1985-08-29
申请号：DE3264817
申请日：1982-02-17
Applicant: BASF AG
Inventor： GROSSKINSKY OTTO-ALFRED DR , FROMMER ELMAR DR , RAPP GUENTHER DR , THOMAS ERWIN
IPC: C01B21/14
Abstract: An improved process for the continuous preparation of hydroxylammonium salts by catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid in the presence of a suspended noble metal catalyst at an elevated temperature in several reaction zones connected in series, wherein the improvement comprises maintaining a pH of
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公开(公告)号：DE2135085A1
公开(公告)日：1973-02-01
申请号：DE2135085
申请日：1971-07-14
Applicant: BASF AG
Inventor： BECKER LOTHAR DIPL ING , KAHR KURT DR , RAPP GUENTHER DR , WASCHKA OTTO DR
IPC: C07D201/16 , C07D41/06
Abstract: Caprolactam is recovered from a mixture which contains caprolactam and oligomers of the same by distillation at temperatures above the melting point of the oligomers or mixture thereof contained in the residue at atmospheric or slightly increased pressure. The process is of importance for removing residues of caprolactam oligomer residues and thus for effluent pollution control.
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公开(公告)号：DE1770088A1
公开(公告)日：1971-09-16
申请号：DE1770088
申请日：1968-03-29
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , KAHR KURT DR
IPC: C07D201/16 , C07D41/06
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公开(公告)号：DE2862408D1
公开(公告)日：1984-06-28
申请号：DE2862408
申请日：1978-08-09
Applicant: BASF AG
Inventor： RAPP GUENTHER DR , KARTTE KLAUS DR , THOMAS ERWIN , MATSUMOTO GENYA
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