公开(公告)号：MX159330A

公开(公告)日：1989-05-17

申请号：MX19027181

申请日：1981-11-25

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  NICHOLAS MARK LEE

IPC: C07D307/60 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J27/16

Abstract: A process is provided for preparing fluid bed catalysts containing the mixed oxides of vanadium and phosphorus prepared from a mixed phosphoric acid source. The process comprises(a) introducing at least one pentavalent vanadium compound into an organic liquid capable of reducing at least a portion of the vanadium to a valence state of +4;(b) effecting reduction of at least a portion of the vanadium to a valence state of +4;(c) contacting the vanadium with a mixed phosphorus component prior or subsequent to effecting said reduction, wherein said mixed phosphorus component comprises 75-90 weight percent orthophosphoric acid and 10-25 weight percent pyrophosphoric acid;(d) comminuting the catalyst precursor resulting from step (a)- (c);(e) introducing the catalyst precursor into water prior or subsequent to said comminuting to form an aqueous slurry; and(f) spray drying said slurry to form microspheroidal catalyst particles.The catalysts are used in the oxidation of C 4 -hydrocarbons, in particular n-butane to maleic anhydride.

公开(公告)号：DE3170443D1

公开(公告)日：1985-06-13

申请号：DE3170443

申请日：1981-12-15

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  NICHOLAS MARK LEE

IPC: C07D307/60 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J23/22

Abstract: A process is provided for preparing fluid bed catalysts containing the mixed oxides of vanadium and phosphorus prepared from a mixed phosphoric acid source. The process comprises(a) introducing at least one pentavalent vanadium compound into an organic liquid capable of reducing at least a portion of the vanadium to a valence state of +4;(b) effecting reduction of at least a portion of the vanadium to a valence state of +4;(c) contacting the vanadium with a mixed phosphorus component prior or subsequent to effecting said reduction, wherein said mixed phosphorus component comprises 75-90 weight percent orthophosphoric acid and 10-25 weight percent pyrophosphoric acid;(d) comminuting the catalyst precursor resulting from step (a)- (c);(e) introducing the catalyst precursor into water prior or subsequent to said comminuting to form an aqueous slurry; and(f) spray drying said slurry to form microspheroidal catalyst particles.The catalysts are used in the oxidation of C 4 -hydrocarbons, in particular n-butane to maleic anhydride.

公开(公告)号：PT74206A

公开(公告)日：1982-01-01

申请号：PT7420681

申请日：1981-12-28

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  NICHOLAS MARK LEE

IPC: C07D307/60 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J

Abstract: A process is provided for preparing fluid bed catalysts containing the mixed oxides of vanadium and phosphorus prepared from a mixed phosphoric acid source. The process comprises(a) introducing at least one pentavalent vanadium compound into an organic liquid capable of reducing at least a portion of the vanadium to a valence state of +4;(b) effecting reduction of at least a portion of the vanadium to a valence state of +4;(c) contacting the vanadium with a mixed phosphorus component prior or subsequent to effecting said reduction, wherein said mixed phosphorus component comprises 75-90 weight percent orthophosphoric acid and 10-25 weight percent pyrophosphoric acid;(d) comminuting the catalyst precursor resulting from step (a)- (c);(e) introducing the catalyst precursor into water prior or subsequent to said comminuting to form an aqueous slurry; and(f) spray drying said slurry to form microspheroidal catalyst particles.The catalysts are used in the oxidation of C 4 -hydrocarbons, in particular n-butane to maleic anhydride.

公开(公告)号：MX163226B

公开(公告)日：1992-03-18

申请号：MX19521982

申请日：1982-11-17

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  MILBERGER ERNEST CARL ,  NICHOLAS MARK LEE ,  ZOCK PATRICIA ANN

IPC: C07D307/60 ,  B01J27/14 ,  B01J27/198 ,  B01J27/28 ,  B01J37/16 ,  B01J38/30 ,  C07B61/00 ,  C07C51/215

Abstract: A process for activating fluid bed catalysts useful for producing maleic anhydride from 4-carbon atom hydrocarbons consists in contacting the fluidized catalyst containing the mixed oxides of vanadium and phosphorus with oxygen and a reducing gas at least partially combustible with oxygen at elevated temperatures sufficient to cause such combustion, the molar ratio of reducing gas to oxygen being below the stiochiometric ratio required for complete combustion of the reducing gas. The activated catalysts are used to producing maleic anhydride from 4-carbon atom hydrocarbons.

公开(公告)号：DE3362431D1

公开(公告)日：1986-04-10

申请号：DE3362431

申请日：1983-07-19

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER NOEL JEROME ,  MILBERGER ERNEST CARL ,  DRIA DENNIS EDWARD ,  NICHOLAS MARK LEE ,  BLUM PATRICIA RAE

IPC: C07D307/60 ,  B01J27/198 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J27/18 ,  C07C57/145

公开(公告)号：DE3269104D1

公开(公告)日：1986-03-27

申请号：DE3269104

申请日：1982-11-24

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  NICHOLAS MARK LEE ,  MILBERGER ERNEST CARL ,  ZOCK PATRICIA ANN

IPC: C07D307/60 ,  B01J27/14 ,  B01J27/198 ,  B01J27/28 ,  B01J37/16 ,  B01J38/30 ,  C07B61/00 ,  C07C51/215 ,  B01J27/18 ,  C07C51/25 ,  C07C57/145

Abstract: A process for activating fluid bed catalysts useful for producing maleic anhydride from 4-carbon atom hydrocarbons consists in contacting the fluidized catalyst containing the mixed oxides of vanadium and phosphorus with oxygen and a reducing gas at least partially combustible with oxygen at elevated temperatures sufficient to cause such combustion, the molar ratio of reducing gas to oxygen being below the stiochiometric ratio required for complete combustion of the reducing gas. The activated catalysts are used to producing maleic anhydride from 4-carbon atom hydrocarbons.

公开(公告)号：PT74206B

公开(公告)日：1983-07-14

申请号：PT7420681

申请日：1981-12-28

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  NICHOLAS MARK LEE

IPC: C07D307/60 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J23/22

Abstract: A process is provided for preparing fluid bed catalysts containing the mixed oxides of vanadium and phosphorus prepared from a mixed phosphoric acid source. The process comprises(a) introducing at least one pentavalent vanadium compound into an organic liquid capable of reducing at least a portion of the vanadium to a valence state of +4;(b) effecting reduction of at least a portion of the vanadium to a valence state of +4;(c) contacting the vanadium with a mixed phosphorus component prior or subsequent to effecting said reduction, wherein said mixed phosphorus component comprises 75-90 weight percent orthophosphoric acid and 10-25 weight percent pyrophosphoric acid;(d) comminuting the catalyst precursor resulting from step (a)- (c);(e) introducing the catalyst precursor into water prior or subsequent to said comminuting to form an aqueous slurry; and(f) spray drying said slurry to form microspheroidal catalyst particles.The catalysts are used in the oxidation of C 4 -hydrocarbons, in particular n-butane to maleic anhydride.