公开(公告)号：WO2013052610A1

公开(公告)日：2013-04-11

申请号：PCT/US2012/058668

申请日：2012-10-04

Applicant: INVISTA TECHNOLOGIES S.A R.L.

Inventor： AKI, Sudhir ,  ALLEN, Wyatt E. ,  ANSTROM, Mark A. ,  CAMPBELL, Charles Nelson, II. ,  CHAO, Tseng H. ,  MCINTOSH, James E. ,  MOERBE, Larry E. ,  MURPHREE, Bruce Edwin ,  ROGERS, Mark D. ,  TENN, William J., III. ,  VOS, Thomas E. ,  WENSING, Michael W.

IPC: C07C253/10 ,  C07C255/04

CPC classification number: C07C253/18 ,  C07C253/10 ,  Y02P20/584 ,  C07C255/04

Abstract: The present invention relates to a process for hydrocyanating 3-pentene¬ nitrile. The process can include feeding 3-pentenenitrile and HCN to a hydrocyanation reaction zone that includes a Lewis acid promoter, nickel, and a phosphorus-containing ligand. In various embodiments, the process can also include controlling water concentration within the hydrocyanation reaction zone sufficient to maintain a high activity of the ligand catalyst complex while recycling at least a portion of the ligand catalyst complex.

Abstract translation: 本发明涉及一种氢氰化3-戊烯腈的方法。 该方法可以包括将3-戊烯腈和HCN加入到包含路易斯酸促进剂，镍和含磷配体的氢化氰化反应区中。 在各种实施方案中，该方法还可以包括控制氢氰化反应区内的水浓度足以维持配体催化剂复合物的高活性，同时再循环至少一部分配体催化剂络合物。

公开(公告)号：EP2794046B1

公开(公告)日：2016-02-03

申请号：EP12795270.3

申请日：2012-11-20

Applicant: Invista Technologies S.A R.L.

Inventor： TENN, William, J. ,  AKI, Sudhir N. V. K. ,  VOS, Thomas E. ,  CHAO, Tseng H.

IPC: C07F9/6574 ,  C07F9/141 ,  C07F9/145 ,  B01D11/04 ,  B01J31/18 ,  B01J31/40

CPC classification number: C07F9/65746 ,  B01D11/0426 ,  B01D11/0457 ,  B01J31/185 ,  B01J31/4053 ,  B01J2531/847 ,  C07F9/141 ,  C07F9/145 ,  Y02P20/582 ,  Y02P20/584

公开(公告)号：EP2928597A1

公开(公告)日：2015-10-14

申请号：EP13811326.1

申请日：2013-12-05

Applicant: Invista Technologies S.A R.L.

Inventor： VOS, Thomas E.

IPC: B01J31/18 ,  C07C253/10

CPC classification number: C07C253/10 ,  B01J31/185 ,  B01J37/00 ,  B01J2231/322 ,  B01J2531/847 ,  B01J2531/90 ,  C07C253/30 ,  C07C253/34 ,  C07C255/04

Abstract: The invention provides methods useful in the industrial scale process for hydrocyanation of butadiene to adiponitrile for recycle of unwanted byproduct 2-methyl-3-butenenitrile (2M3BN) by conversion to process intermediate pentenenitrile. The invention provides a process for generating catalysts useful for carrying out the hydrocyanation of butadiene to adiponitrile, the process comprising contacting the 2M3BN and a solution of a nickel-ligand catalyst in cis-2-pentenenitrile (cis-2PN), trans-2-pentenenitrile (trans-2PN), or a mixture thereof. The improved methods of the invention can provide improved catalyst solubility for bidentate ligands without a requirement for a Lewis acid catalyst promoter such as zinc chloride to be present.