公开(公告)号：WO2015009847A1

公开(公告)日：2015-01-22

申请号：PCT/US2014/046881

申请日：2014-07-16

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： AKI, Sudhir, N.V.K. ,  GARNER, James, Michael ,  TENN, William, J. ,  VOS, Thomas, E.

IPC: C07C255/07 ,  C07C253/34

CPC classification number: C07C253/10 ,  B01D3/143 ,  B01J31/185 ,  C07C253/34 ,  C07C255/07 ,  C07C255/04

Abstract: A solvent is at least partially separated from a catalyst. The catalyst comprises nickel and a bidentate phosphorus-containing ligand. The method for separation involves distilling a catalyst solution. The ratio of 2-pentenenitrile to 3-pentenenitrile in distillation column bottoms is controlled to reduce the amount of 3-pentenenitrile which is isomerized to form 2-methyl-3-butenenitrile. Isomerization of 3-pentenenitrile to 2- methyl-3-butenenitrile, and subsequent isomerization of 2-methyl-3-butenenitrile to 2- methyl-2-butenenitrile, and/or hydrocyanation of 2-methyl-3-butenenitrile to methylglutaronitrile represents a loss in adiponitrile yield in a process for making adiponitrile.

Abstract translation: 溶剂与催化剂至少部分分离。 催化剂包括镍和二齿磷含量配体。 分离方法包括蒸馏催化剂溶液。 控制蒸馏塔底馏分中2-戊烯腈与3-戊烯腈的比例，以减少异构化形成2-甲基-3-丁烯腈的3-戊烯腈的量。 3-戊烯腈异构化为2-甲基-3-丁烯腈，随后将2-甲基-3-丁烯腈异构化为2-甲基-2-丁烯腈，和/或2-氰基-3-丁烯腈氢化为甲基戊二烯代表 在制造己二腈的方法中己二腈产率的损失。