公开(公告)号：KR840000738B1

公开(公告)日：1984-05-31

申请号：KR810001536

申请日：1981-05-04

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

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

公开(公告)号：MX169476B

公开(公告)日：1993-07-07

申请号：MX784481

申请日：1981-04-21

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

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

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

公开(公告)号：ATA123381A

公开(公告)日：1986-12-15

申请号：AT123381

申请日：1981-03-17

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

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

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

公开(公告)号：PT74207A

公开(公告)日：1982-01-01

申请号：PT7420781

申请日：1981-12-28

Applicant: STANDARD OIL CO OHIO

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

IPC: C07D307/60 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J

Abstract: A process for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus comprises… a) introducing a pentavalent vanadium-containing compound into a liquid medium capable of reducing the valence state of said vanadium;… b) effecting reduction of at least a portion of said vanadium to a valence state of approximately +4;… c) adding a mixed phosphorus component comprising orthophosphoric acid and pyrophosphoric acid to said medium prior to or subsequent to effecting said reduction to form a catalyst precursor;… d) recovering the catalyst precursor;… e) drying the catalyst precursor;… f) calcining the catalyst precursor;…… Improved results are obtained by the use as the mixed phosphorus of component one containing orthophosphoric and pyrophosphoric acid. … The catalyst are useful in the oxidation of C4 hydrocarbons to maleic anhydride.

公开(公告)号：IN160581B

公开(公告)日：1987-07-18

申请号：IN51DE1981

申请日：1981-01-28

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

IPC: C07D307/60 ,  B01J23/00 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215 ,  B01J11/08

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

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：PT73860B

公开(公告)日：1983-01-25

申请号：PT7386081

申请日：1981-10-21

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

IPC: C07D307/60 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/145

Abstract: A process for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus, which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce high yields of maleic anhydride with good selectivity comprises introducing a vanadium compound into an olefinic oxygenated organic liquid medium, adding a phosphorus-containing compound to the medium reducing at least a portion of the vanadium to a +4 valence state either prior to or subsequent to the addition of the phosphorus-containing compound, and recovering the resulting vanadiumphosphorus oxide catalyst precursor which is then dried and calcined.

公开(公告)号：PT72957B

公开(公告)日：1982-03-26

申请号：PT7295781

申请日：1981-04-30

Applicant: STANDARD OIL CO OHIO

Inventor： DRIA DENNIS EDWARD ,  MILBERGER ERNEST CARL ,  BREMER NOEL JEROME

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

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

公开(公告)号：PT72957A

公开(公告)日：1981-05-01

申请号：PT7295781

申请日：1981-04-30

Applicant: STANDARD OIL CO OHIO

Inventor： DRIA DENNIS EDWARD ,  MILBERGER ERNEST CARL ,  BREMER NOEL JEROME

IPC: C07D307/60 ,  B01J23/00 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215 ,  B01J

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

公开(公告)号：MX155090A

公开(公告)日：1988-01-26

申请号：MX18694281

申请日：1981-04-21

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

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

Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.