公开(公告)号：US11780804B2

公开(公告)日：2023-10-10

申请号：US16880717

申请日：2020-05-21

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Darrick Elmore

IPC: C07C253/34

CPC classification number: C07C253/34

Abstract: Provided herein are processes for purifying TCH in a feed stream, such as an adiponitrile process stream. The processes include a first separating step of separating the adiponitrile process stream to form a first overhead stream comprising low-boiling components and high-boiling components and a first bottoms stream comprising high-boiling components. The processes also include a second separating step of separating the first overhead stream in one or more distillation columns to form a lights stream comprising low-boiling components, a heavies stream comprising high-boiling components, and a TCH stream.

公开(公告)号：US12215070B2

公开(公告)日：2025-02-04

申请号：US16953521

申请日：2020-11-20

Applicant: Ascend Performance Materials Operations LLC

Inventor： Todd R. Boehlow ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Sanjay Dube ,  Darrick Elmore

IPC: C07C255/05

Abstract: The disclosure relates to the cyanocarbon compositions and processes for producing the same. The cyanocarbon compositions comprise tricyanohexane and one or more coproducts of the tricyanohexane production reaction. Exemplary coproducts include tetracyano compounds, cyanoalkenes, cyanooximes, cyanoamides, and combinations thereof.

公开(公告)号：US20230416192A1

公开(公告)日：2023-12-28

申请号：US18462780

申请日：2023-09-07

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Darrick Elmore

IPC: C07C253/34

CPC classification number: C07C253/34

Abstract: Provided herein are processes for purifying TCH in a feed stream, such as an adiponitrile process stream. The processes include a first separating step of separating the adiponitrile process stream to form a first overhead stream comprising low-boiling components and high-boiling components and a first bottoms stream comprising high-boiling components. The processes also include a second separating step of separating the first overhead stream in one or more distillation columns to form a lights stream comprising low-boiling components, a heavies stream comprising high-boiling components, and a TCH stream.

公开(公告)号：US20210198187A1

公开(公告)日：2021-07-01

申请号：US17138605

申请日：2020-12-30

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Darrick Elmore

IPC: C07C253/34 ,  C07C255/05 ,  B01D15/20 ,  B01D15/24 ,  B01D15/18

Abstract: A process for producing a TCH stream, the process comprising: separating, in a first column, an adiponitrile process stream comprising TCH and optionally adiponitrile, to form an adiponitrile stream comprising greater than 5 wt. % adiponitrile and a first TCH stream comprising TCH, and optionally a heavies stream comprising high-boiling components and solid impurities; and optionally purifying the first TCH stream, via one or more columns, to form a purified TCH stream comprising greater than 50 wt. % TCH; wherein the first column is operated at a pressure drop less than 25 mmHg.

公开(公告)号：US11560353B2

公开(公告)日：2023-01-24

申请号：US17138591

申请日：2020-12-30

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Darrick Elmore

IPC: C07C253/34

Abstract: The present disclosure relates generally to processes for recovering tricyanohexane (TCH) via purification of by-product or co-product streams of adiponitrile production. In particular, the present disclosure relates to a process for purifying tricyanohexane (TCH), the process having the steps of (a) separating an adiponitrile process stream comprising adiponitrile and TCH to form a first overhead lights stream comprising low-boiling components and high-boiling components and a first bottoms heavies stream comprising high-boiling components and solid impurities; and (b) separating the first overhead lights stream in a distillation column to form a second overhead lights stream comprising low-boiling components, a second bottoms heavies stream comprising high-boiling components, and a TCH stream comprising TCH and less than 10 wt. % impurities; wherein the distillation column is a low pressure distillation column.

公开(公告)号：US20210155579A1

公开(公告)日：2021-05-27

申请号：US16953521

申请日：2020-11-20

Applicant: Ascend Performance Materials Operations LLC

Inventor： Todd R. Boehlow ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Sanjay Dube ,  Darrick Elmore

IPC: C07C255/05

Abstract: The disclosure relates to the cyanocarbon compositions and processes for producing the same. The cyanocarbon compositions comprise tricyanohexane and one or more coproducts of the tricyanohexane production reaction. Exemplary coproducts include tetracyano compounds, cyanoalkenes, cyanooximes, cyanoamides, and combinations thereof.

公开(公告)号：US20210198186A1

公开(公告)日：2021-07-01

申请号：US17138591

申请日：2020-12-30

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Darrick Elmore

IPC: C07C253/34

Abstract: The present disclosure relates generally to processes for recovering tricyanohexane (TCH) via purification of by-product or co-product streams of adiponitrile production. In particular, the present disclosure relates to a process for purifying tricyanohexane (TCH), the process having the steps of (a) separating an adiponitrile process stream comprising adiponitrile and TCH to form a first overhead lights stream comprising low-boiling components and high-boiling components and a first bottoms heavies stream comprising high-boiling components and solid impurities; and (b) separating the first overhead lights stream in a distillation column to form a second overhead lights stream comprising low-boiling components, a second bottoms heavies stream comprising high-boiling components, and a TCH stream comprising TCH and less than 10 wt. % impurities; wherein the distillation column is a low pressure distillation column.

公开(公告)号：US20210198185A1

公开(公告)日：2021-07-01

申请号：US17138578

申请日：2020-12-30

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Darrick Elmore

IPC: C07C253/34 ,  C07C209/48 ,  B01D3/06 ,  B01D3/42

Abstract: A process for producing an intermediate adiponitrile stream, the process comprising separating an adiponitrile process stream comprising less than 50 wt % adiponitrile, and optionally TCH, to form the intermediate adiponitrile stream comprising at least 5 wt % adiponitrile and a heavies stream comprising high-boiling components and optionally solid impurities; and optionally utilizing at least a portion of the intermediate adiponitrile stream outside of the process.

公开(公告)号：US20200369602A1

公开(公告)日：2020-11-26

申请号：US16880717

申请日：2020-05-21

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Darrick Elmore

IPC: C07C253/34

Abstract: Provided herein are processes for purifying TCH in a feed stream, such as an adiponitrile process stream. The processes include a first separating step of separating the adiponitrile process stream to form a first overhead stream comprising low-boiling components and high-boiling components and a first bottoms stream comprising high-boiling components. The processes also include a second separating step of separating the first overhead stream in one or more distillation columns to form a lights stream comprising low-boiling components, a heavies stream comprising high-boiling components, and a TCH stream.