公开(公告)号：US20180021692A1

公开(公告)日：2018-01-25

申请号：US15553761

申请日：2016-02-23

Applicant: SABIC Global Technologies B.V.

Inventor： Roland Schmidt ,  Sebastiano Licciulli ,  Shahid Azam

IPC: B01D3/00 ,  C07C51/487 ,  C07C53/08 ,  B01D5/00

Abstract: A process of purifying acetic acid is provided. The process includes feeding a stream of acetic acid into a distillation column and distilling acetic acid in the presence of an oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the oxidizing agent is an oxidant capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.

公开(公告)号：US09724681B2

公开(公告)日：2017-08-08

申请号：US15115711

申请日：2015-02-04

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sebastiano Lucciulli ,  Roland Schmidt

IPC: C08F2/00 ,  C08F4/00 ,  B01J31/14 ,  B01J31/02 ,  B01J35/00 ,  B01J37/04 ,  C07C2/34 ,  C08F110/08

CPC classification number: B01J31/143 ,  B01J31/0204 ,  B01J31/0212 ,  B01J35/0006 ,  B01J37/04 ,  B01J2231/10 ,  B01J2231/20 ,  B01J2531/007 ,  C07C2/34 ,  C07C2531/14 ,  C08F110/08

Abstract: Processes of making catalyst compositions are provided. In an exemplary embodiment, the processes include modifying an organoaluminum compound with a modifier that decreases the initial reducing strength of the organoaluminum compound, where the modifier can be an ether, an anhydride, an amine, an amide, a silicate, a silyl ether, a siloxane, an ester, a carbonate, a urea, a carbamate, a sulfoxide, a sulfone, a phosphoramide, or a combination thereof. The processes further include adding a transition metal complex to the mixture of the organoaluminum compound and the modifier; and obtaining a catalyst composition including the organoaluminum compound and the transition metal complex.

公开(公告)号：US10758838B2

公开(公告)日：2020-09-01

申请号：US15553761

申请日：2016-02-23

Applicant: SABIC Global Technologies B.V.

Inventor： Roland Schmidt ,  Sebastiano Licciulli ,  Shahid Azam

IPC: B01D3/00 ,  B01D5/00 ,  C07C51/487 ,  C07C53/08 ,  B01D3/14 ,  C01D13/00 ,  C01G45/12 ,  C07C57/03

Abstract: A process of purifying acetic acid is provided. The process includes feeding a stream of acetic acid into a distillation column and distilling acetic acid in the presence of an oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the oxidizing agent is an oxidant capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.

公开(公告)号：US20200222827A1

公开(公告)日：2020-07-16

申请号：US16829458

申请日：2020-03-25

Applicant: SABIC Global Technologies B.V.

Inventor： Roland Schmidt ,  Sebastiano Licciulli ,  Shahid Azam

IPC: B01D3/00 ,  B01D5/00 ,  C07C51/487 ,  C07C53/08

Abstract: A process of purifying acetic acid is provided. The process includes feeding a feed stream comprising acetic acid into a bottom half of a distillation column and distilling the acetic acid in the presence of a homogeneous oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the homogeneous oxidizing agent is capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.