公开(公告)号：EP1301471A2

公开(公告)日：2003-04-16

申请号：EP01944621.0

申请日：2001-06-21

Applicant: The Standard Oil Company

Inventor： GODBOLE, Sanjay, P.

IPC: C07C253/34 ,  C07C255/03

CPC classification number: C07C253/26 ,  C07C253/24 ,  C07C253/34 ,  Y10S203/20 ,  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：EP1590320A1

公开(公告)日：2005-11-02

申请号：EP03796689.2

申请日：2003-12-05

Applicant: THE STANDARD OIL COMPANY

Inventor： GODBOLE, Sanjay, P. ,  CESA, Mark, C.

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

CPC classification number: 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 aikylene diamines to the overhead decanter and/or to the solvent water.

公开(公告)号：EP1301471B1

公开(公告)日：2005-02-16

申请号：EP01944621.0

申请日：2001-06-21

Applicant: The Standard Oil Company

Inventor： GODBOLE, Sanjay, P.

IPC: C07C253/34 ,  C07C255/03

CPC classification number: C07C253/26 ,  C07C253/24 ,  C07C253/34 ,  Y10S203/20 ,  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：EP1592676A1

公开(公告)日：2005-11-09

申请号：EP04700190.4

申请日：2004-01-05

Applicant: THE STANDARD OIL COMPANY

Inventor： CESA, Mark, C. ,  MOORE, Eric, J. ,  BRUCE, Mark, R. ,  GODBOLE, Sanjay, P. ,  HAGANS, Michael, K. ,  BENDER, David, R.

IPC: C07D263/32

CPC classification number: C07D263/32

Abstract: A process for the recovery of oxazole comprising contacting a mixture comprising oxazole and acetonitrile with an acid to form an acid salt of oxazole; separating acid salt of the oxazole from the mixture; and neutralizing the acid salt of oxazole separated from the mixture to release oxazole.

Abstract translation: 一种回收恶唑的方法，包括使含有恶唑和乙腈的混合物与酸接触以形成恶唑的酸式盐; 从混合物中分离恶唑的酸盐; 并中和从混合物中分离出的恶唑酸盐以释放恶唑。

公开(公告)号：EP1503982A1

公开(公告)日：2005-02-09

申请号：EP03729057.4

申请日：2003-05-16

Applicant: The Standard Oil Company

Inventor： GODBOLE, Sanjay, P. ,  PAPARIZOS, Christos ,  SEELY, Michael, J.

IPC: C07C253/26 ,  C07C255/03 ,  C07C255/08

CPC classification number: C07C253/26 ,  Y02P20/52 ,  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：EP1366019A1

公开(公告)日：2003-12-03

申请号：EP01913286.9

申请日：2001-03-05

Applicant: The Standard Oil Company

Inventor： GODBOLE, Sanjay, P. ,  SEELY, Michael, J. ,  SURESH, Dev, D.

IPC: C07C253/26 ,  C07C253/24

CPC classification number: C07C253/26 ,  C07C253/24 ,  Y02P20/52 ,  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.