公开(公告)号：EP3044213A1

公开(公告)日：2016-07-20

申请号：EP14790796.8

申请日：2014-09-09

Applicant: Invista Technologies S.à.r.l.

Inventor： AIRD, Graham R. ,  HAMILTON, Clive Alexander ,  BECK, Lauren Emily Sheridan

IPC: C07D307/08

CPC classification number: C07D307/08

Abstract: The disclosed process relates to an improved process for manufacturing THF from a reaction mixture comprising BDO in the presence of an acid catalyst in a reaction vessel comprising a distillation reaction zone, wherein the acid catalyst is suspended in a vapor-rich region in the distillation reaction zone.

Abstract translation: 所公开的方法涉及在包含蒸馏反应区的反应容器中，在酸催化剂存在下由包含BDO的反应混合物制备THF的改进方法，其中酸催化剂悬浮在蒸馏反应器中的富蒸气区中 区。

公开(公告)号：EP1599529A2

公开(公告)日：2005-11-30

申请号：EP04714233.6

申请日：2004-02-24

Applicant: INVISTA Technologies S.à.r.l.

Inventor： McDONNELL, Finbar, Gerald ,  HAMILTON, Clive Alexander ,  COOTE, Alexander Stuart

IPC: C08G63/88 ,  C08G63/78 ,  C08G63/90

CPC classification number: C08G63/78 ,  C08G63/181

Abstract: An improved process for recycling unspent diol removed from a polyester manufacturing process wherein the diol is captured, hydrogenated, and recycled so that the final polyester product has improved color over polyesters produced using other recycled diols.