公开(公告)号：ES2236874T3

公开(公告)日：2005-07-16

申请号：ES98309539

申请日：1998-11-23

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P ,  GRAHAM ANNE M ,  LEE DANIEL G

IPC: C07C5/08 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  C07C253/32

Abstract: LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA LA FABRIACION DE UN MONONITRILO INSATURADO, SELECCIONADO A PARTIR DEL GRUPO FORMADO POR ACRILONITRILO Y METACRILONITRILO, QUE CONSISTE EN: HACER REACCIONAR UNA OLEFINA SELECCIONADA A PARTIR DEL GRUPO FORMADO POR PROPILENO E ISOPROPILENO, AMONIACO Y OXIGENO, EN UNA ZONA DE REACTOR, EN PRESENCIA DE UN CATALIZADOR, PARA PRODUCIR UN EFLUENTE DEL REACTOR FORMADO POR EN MONONITRILO INSATURADO CORRESPONDIENTE; TRANSFERIR EL EFLUENTE DEL REACTOR QUE CONTIENE EL MONONITRILO INSATURADO A UNA COLUMNA DE ENFRIAMIENTO RAPIDO EN LA QUE DICHO EFLUENTE SE PONE EN CONTACTO CON AL MENOS UNA PRIMERA CORRIENTE ACUOSA QUE ENFRIA DICHO EFLUENTE; TRANSFERIR EL EFLUENTE ENFRIADO A UNA COLUMNA DE ABSORCION, EN DONDE SE PONE EN CONTACTO CON AL MENOS UNA SEGUNDA CORRIENTE ACUOSA, PARA SEPARAR Y ELIMINAR EL MONONITRILO INSATURADO COMO CORRIENTE DE FONDO A PARTIR DE LA COLUMNA DE ABSORCION; TRANSFERIR DICHA CORRIENTE DE FONDO HASTA UNA SECCION DE RECUPERACION Y PURIFICACION, DONDE EL MONONITRILO INSATURADO SE RECUPERA Y PURIFICA; Y RECICLAR AL MENOS UNA CORRIENTE DE PROCESO ACUOSA PARA MEJORAR LA EFICIENCIA DEL PROCESO. LA MEJORA DEL PROCESO CONSISTE EN TRATAR AL MENOS UNA CORRIENTE ACUOSA ANTES DEL RECICLAJE EN LA CORRIENTE DEL PROCESO, PARA REDUCIR EL PH, REDUCIENDO POR TANTO LA CANTIDAD DE IMPUREZAS TRAZA PRESENTES EN LA CORRIENTE DE RECICLAJE ACUOSA.

公开(公告)号：AT289290T

公开(公告)日：2005-03-15

申请号：AT01944621

申请日：2001-06-21

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P

IPC: C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/03

Abstract: A method for the purification of crude acetonitrile comprising distilling the crude acetonitrile in a first fractional distillation column at below atmospheric pressure, withdrawing a first side draw fraction comprising acetonitrile, distilling the first side draw fraction in a second fractional distillation column at super atmospheric pressure, and withdrawing from the second distillation a second side draw fraction comprising purified acetonitrile.

公开(公告)号：BR0309879A

公开(公告)日：2005-03-01

申请号：BR0309879

申请日：2003-05-16

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P ,  PAPARIZOS CHRISTOS ,  SEELY MICHAEL J

IPC: C07B61/00 ,  C07C253/24 ,  C07C253/26 ,  C07C255/03 ,  C07C255/08

Abstract: A process for increasing the yield of acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a carboxylic acid, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, carboxylic acid, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

公开(公告)号：CA2516401A1

公开(公告)日：2004-07-29

申请号：CA2516401

申请日：2003-12-05

Applicant: STANDARD OIL CO

Inventor： CESA MARK C ,  GODBOLE SANJAY P

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

Abstract: A process for the recovery of acrylonitrile or methacrylonitrile from an aqueous solution comprising subjecting the said solution to a water extractive distillation by feeding the solution to a distillation column and performing said extractive distillation and using solvent water introduced at the top of said column, removing a first overhead vapor stream of acrylonitrile or methacrylonitrile with some water from the top of the column, and a first liquid stream containing water and impurities from the bottom of the column, the contents of said column maintained at a substantially neutral pH by adding a sufficient amount of at least one alkaline compound selected from ammonium carbonate, ammonium bicarbonate, ammonium carbamate, and alkylene diamines to the overhead decanter and/or to the solvent water.

公开(公告)号：BR0116920A

公开(公告)日：2004-04-27

申请号：BR0116920

申请日：2001-03-05

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P ,  SEELY MICHAEL J ,  SURESH DEV D

IPC: C07B61/00 ,  C07C253/24 ,  C07C253/26 ,  C07C255/03 ,  C07C255/08

Abstract: A process for increasing the yield of one or both co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a mixture comprising one or more alcohols selected from crude methanol, crude ethanol or crude propanol, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

公开(公告)号：BR0112548A

公开(公告)日：2003-09-09

申请号：BR0112548

申请日：2001-06-21

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P

IPC: C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/03 ,  C07C253/00

Abstract: A method for the purification of crude acetonitrile comprising distilling the crude acetonitrile in a first fractional distillation column at below atmospheric pressure, withdrawing a first side draw fraction comprising acetonitrile, distilling the first side draw fraction in a second fractional distillation column at super atmospheric pressure, and withdrawing from the second distillation a second side draw fraction comprising purified acetonitrile.

公开(公告)号：ZA200109165B

公开(公告)日：2003-02-06

申请号：ZA200109165

申请日：2001-11-06

Applicant: STANDARD OIL CO

Inventor： SEELY MICHAEL J ,  SURESH DEV D ,  GODBOLE SANJAY P

IPC: C01C3/02 ,  C07B61/00 ,  C07C253/24 ,  C07C253/26 ,  C07C255/03 ,  C07C255/08 ,  C07C

Abstract: A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ketones, ammonia and air, into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, the ketone, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

公开(公告)号：DZ3412A1

公开(公告)日：2002-01-24

申请号：DZ013412

申请日：2001-06-21

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P

IPC: C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/03

公开(公告)号：BRPI0117105B1

公开(公告)日：2016-06-28

申请号：BR0117105

申请日：2001-08-21

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P

IPC: C01C3/04 ,  C07C253/32 ,  C07C253/24 ,  C07C253/34 ,  C07C255/08

Abstract: "acrilonitrila, metacrilonitrila ou ácido cianídrico e respectivo processos de recuperação". processo para a recuperação e operação incrementada de coluna de frações leves de ácido cianídrico (hcn), obtido a partir do efluente do reator de uma reação de amoxidação de propano, propileno ou isobutileno, fazendo reduzir a formação de polímero acima da bandeja de alimentação na torre de frações leves.

公开(公告)号：CA2415395C

公开(公告)日：2009-12-01

申请号：CA2415395

申请日：2001-06-21

Applicant: STANDARD OIL CO

Inventor： GODBOLE SANJAY P

IPC: C07C253/34 ,  C07C253/24 ,  C07C253/26 ,  C07C255/03

Abstract: A method for the purification of crude acetonitrile comprising distilling th e crude acetonitrile in a first fractional distillation column at below atmospheric pressure, withdrawing a first side draw fraction comprising acetonitrile, distilling the first side draw fraction in a second fractional distillation column at super atmospheric pressure, and withdrawing from the second distillation a second side draw fraction comprising purified acetonitrile.