公开(公告)号：BG98453A

公开(公告)日：1995-05-31

申请号：BG9845394

申请日：1994-02-11

Applicant: STANDARD OIL CO

Inventor： SHAW WILFRID G ,  TROTT LOUIS R ,  REILING VINCENT G ,  SURESH DEV D ,  BOTT PAUL E ,  SHUKI ALBERT R ,  KOCJANCIC FRANK J ,  BIGLER KENETH L ,  MIKO STEVE J ,  SEELY MICHAEL J ,  FRIEDRICH MARIA S ,  SOCKELL EDWARD J ,  KECKLER KENNETH P ,  ROWE STEVEN J

IPC: B01J23/88 ,  B01D53/58 ,  C01C3/02 ,  C07B61/00 ,  C07C5/08 ,  C07C253/24 ,  C07C253/26 ,  C07C253/32 ,  C07C255/00 ,  C07C255/08

Abstract: A process for the substantial reduction or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.

公开(公告)号：BR9400642A

公开(公告)日：1995-03-28

申请号：BR9400642

申请日：1994-02-22

Applicant: STANDARD OIL CO OHIO

Inventor： BOTT PAUL E ,  SHAW WILFRID G ,  BIGLER KENNETH L ,  TROTT LOUIS R ,  MIKO STEVE J ,  REILING VINCENT G ,  SEELY MICHAEL J ,  SURESH DEV D ,  FRIEDRICH MARIA S ,  SOCKELL EDWARD J ,  SHUKI ALBERT R JR ,  KECKLER KENNETH P ,  KOCJANCIC FRANK J ,  ROWE STEVEN J

IPC: B01J23/88 ,  B01D53/58 ,  C01C3/02 ,  C07B61/00 ,  C07C5/08 ,  C07C253/24 ,  C07C253/26 ,  C07C253/32 ,  C07C255/00 ,  C07C255/08 ,  C07C253/34

Abstract: A process for the substantial reduction or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.

公开(公告)号：TR199801855A2

公开(公告)日：1999-06-21

申请号：TR9801855

申请日：1998-09-18

Applicant: STANDARD OIL CO

Inventor： SOCKELL EDWARD J ,  KERR ALI ,  SARNA JOSEPH C ,  GODBOLE SANJAY P

IPC: C07C253/26 ,  C07C253/24 ,  C07C253/34 ,  C07C255/08

Abstract: A process for the enhanced recovery of hydrogen cyanide (HCN) obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprising passing the reactor effluent through a quench column, an absorber column, a first distillation column, a second distillation column, a cooler and a knock-out pot, wherein the improvement comprises contacting the vapor phase containing hydrogen cyanide with an aqueous stream.

公开(公告)号：BG98189A

公开(公告)日：1995-02-28

申请号：BG9818993

申请日：1993-10-29

Applicant: STANDARD OIL CO

Inventor： SHAW WILFRID G ,  TROTT LOUIS R ,  REILING VINCENT G ,  SURESH DEV D ,  BOTT PAUL E ,  SHUKI ALBERT R ,  BIGLER KENETH L ,  MIKO STEVE J ,  SEELY MICHAEL J ,  FRIEDRICH MARIA S ,  SOCKELL EDWARD J ,  KECKLER KENETH P ,  KOCJANCIC FRANK J

IPC: B01D53/58 ,  C07C253/24 ,  C07C253/26 ,  C07C255/00 ,  C07C255/08

Abstract: By the method the ammonium sulphate formed during the manufacture of acrylonitrile by direct ammoxidation (reaction between ammonia and oxygen) of propylene or propane, ammonia and ogygen-containing gas, such as air on catalyst fluidized bed fitted in respective reactor, is eliminated to a great extent or completely. In the reactor organic substance, or substances, respectively, are introduced which react with practically all the residual ammonia without this affecting the acrylonitrile yield. It is preferable that the organic substance should be methanol which is introduced in the reactor at temperatures bellow the points of its carbonization.

公开(公告)号：DE3168979D1

公开(公告)日：1985-03-28

申请号：DE3168979

申请日：1981-12-23

Applicant: STANDARD OIL CO OHIO

Inventor： PRESSON ROBERT DEAN ,  WU HSIN-CHIH ,  SOCKELL EDWARD J

IPC: C07C5/00 ,  B01D3/36 ,  C07C253/34 ,  C07C120/00 ,  C07C121/18

Abstract: A continuous process for recovering highly pure acetonitrile from crude acetonitrile containing acetonitrile, water, HCN and heavy organics, said process comprising:… (1) distilling said crude acetonitrile in a first distillation zone at a first pressure at or above 1 atmosphere to remove HCN therefrom and produce a first acetonitrile/water azeotrope and a first bottoms product containing water,… (2) distilling said first azeotrope in a second distillation zone at a second pressure less than 1 atmosphere to separate said first azeotrope into a second bottoms product containing water and a second acetonitrile/water azeotrope having a greater acetonitrile concentration than said first azeotrope, and… (3) distilling said second acetonitrile/water azeotrope in a third distillation zone at a third pressure above 1 atmosphere to produce a third acetonitrile/water azeotrope containing substantially all of the water in said second azeotrope, third bottoms product comprising acetonitrile and heavy organics and a sidestream comprising said highly pure acetonitrile. … This process enables one to obtain acetonitrile in 99+% purity. It is based upon a continuous distillation process carried out in three stages at three different pressures.

公开(公告)号：CA1180299A

公开(公告)日：1985-01-02

申请号：CA392866

申请日：1981-12-21

Applicant: STANDARD OIL CO OHIO

Inventor： PRESSON ROBERT D ,  WU HSIN-CHIH ,  SOCKELL EDWARD J

IPC: C07C120/00

Abstract: CONTINUOUS ACETONITRILE RECOVERY PROCESS Crude acetonitrile is purified to 99+ weight percent by a continuous distillation procedure.

公开(公告)号：BR8108531A

公开(公告)日：1982-10-19

申请号：BR8108531

申请日：1981-12-30

Applicant: STANDARD OIL CO

Inventor： PRESSON ROBERT DEAN ,  HSIN CHIH WU ,  SOCKELL EDWARD J

IPC: C07C5/00 ,  B01D3/36 ,  C07C253/34 ,  C07C121/18

Abstract: A continuous process for recovering highly pure acetonitrile from crude acetonitrile containing acetonitrile, water, HCN and heavy organics, said process comprising:… (1) distilling said crude acetonitrile in a first distillation zone at a first pressure at or above 1 atmosphere to remove HCN therefrom and produce a first acetonitrile/water azeotrope and a first bottoms product containing water,… (2) distilling said first azeotrope in a second distillation zone at a second pressure less than 1 atmosphere to separate said first azeotrope into a second bottoms product containing water and a second acetonitrile/water azeotrope having a greater acetonitrile concentration than said first azeotrope, and… (3) distilling said second acetonitrile/water azeotrope in a third distillation zone at a third pressure above 1 atmosphere to produce a third acetonitrile/water azeotrope containing substantially all of the water in said second azeotrope, third bottoms product comprising acetonitrile and heavy organics and a sidestream comprising said highly pure acetonitrile. … This process enables one to obtain acetonitrile in 99+% purity. It is based upon a continuous distillation process carried out in three stages at three different pressures.

公开(公告)号：ID21333A

公开(公告)日：1999-05-27

申请号：ID981250

申请日：1998-09-17

Applicant: STANDARD OIL CO

Inventor： SOCKELL EDWARD J ,  KERR ALI ,  SARNA JOSEPH C ,  GODBOLE SANJAY P

IPC: C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  B01D53/00 ,  C02F1/00 ,  C08F10/00 ,  C08F20/44

Abstract: A process for the enhanced recovery of hydrogen cyanide (HCN) obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprising passing the reactor effluent through a quench column, an absorber column, a first distillation column, a second distillation column, a cooler and a knock-out pot, wherein the improvement comprises contacting the vapor phase containing hydrogen cyanide with an aqueous stream.

公开(公告)号：ZA941200B

公开(公告)日：1994-11-30

申请号：ZA941200

申请日：1994-02-22

Applicant: STANDARD OIL CO OHIO

Inventor： SHAW WILRID G ,  TROTT LOUIS R ,  BIGLER KENNETH L ,  MIKO STEVE J ,  REILING VINCENT G ,  SURESH DEV D ,  BOTT PAUL E ,  SHUKI ALBERT R JR ,  KOCJANCIC FRANK J ,  SEELY MICHAEL J ,  FRIEDRICH MARIA S ,  SOCKELL EDWARD J ,  KECKLER KENNETH P ,  ROWE STEVEN J

IPC: C07B20060101 ,  C07C20060101 ,  C07C ,  C07B

公开(公告)号：ZA9401200B

公开(公告)日：1994-11-30

申请号：ZA9401200

申请日：1994-02-22

Applicant: STANDARD OIL CO OHIO

Inventor： SHAW WILRID G ,  TROTT LOUIS R ,  BIGLER KENNETH L ,  MIKO STEVE J ,  REILING VINCENT G ,  SURESH DEV D ,  BOTT PAUL E ,  SHUKI ALBERT R JR ,  KOCJANCIC FRANK J ,  SEELY MICHAEL J ,  FRIEDRICH MARIA S ,  SOCKELL EDWARD J ,  KECKLER KENNETH P ,  ROWE STEVEN J

IPC: C07B20060101 ,  C07C20060101 ,  C07C ,  C07B

CPC classification number: Y02A50/2346