公开(公告)号：US20210363099A1

公开(公告)日：2021-11-25

申请号：US17053398

申请日：2019-06-03

Applicant: Hanwha Solutions Corporation

Inventor： Hyun Cheol RYU ,  Kee Do HAN

IPC: C07C263/20 ,  C07C263/10 ,  B01D5/00

Abstract: The present invention relates to a method for preparing aliphatic isocyanate. More specifically, the present invention relates to a high purity isocyanate preparation method that can effectively recover unreacted materials and recycle them to a reaction step, and reduce energy consumed when separating reactants.

公开(公告)号：US20250099938A1

公开(公告)日：2025-03-27

申请号：US18730807

申请日：2022-01-26

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Hye Won LEE ,  Hyun Cheol RYU ,  Keedo HAN

IPC: B01J19/00 ,  B01J4/00 ,  B01J10/00 ,  B01J19/18 ,  C07C263/00

Abstract: A method for preparing an aliphatic isocyanate according to an exemplary embodiment of the present disclosure includes a first step of introducing an aliphatic amine and an organic solvent into a reactor, a second step of supplying gaseous hydrogen chloride into the reactor through a sparger, and a third step of stirring the aliphatic amine and the organic solvent, and the hydrogen chloride with a stirrer installed in the reactor, wherein in the third step, a stirring force of the stirrer is controlled to 500 to 4,000 W/m3.

公开(公告)号：US20240317678A1

公开(公告)日：2024-09-26

申请号：US18259811

申请日：2021-12-30

Applicant: Hanwha Solutions Corporation

Inventor： Hyun Cheol RYU ,  Ju Won MIN ,  Keedo HAN

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can minimize thermal denaturation of a reaction product and formation of by-products and obtain a high-purity isocyanate compound more stably during the preparation of an isocyanate compound using phosgene.

公开(公告)号：US20240317679A1

公开(公告)日：2024-09-26

申请号：US18259824

申请日：2021-12-30

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Ju Won MIN ,  Hyun Cheol RYU

IPC: C07C263/10

CPC classification number: C07C263/10

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can recover and reuse materials used in the reaction during the preparation of an isocyanate compound using phosgene, and can minimize thermal denaturation of a reaction product and formation of by-products.

公开(公告)号：US20240050909A1

公开(公告)日：2024-02-15

申请号：US18257887

申请日：2021-12-17

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Hye Won LEE ,  Hyun Cheol RYU ,  Keedo HAN

IPC: B01J4/00 ,  B01J19/00 ,  B01J19/18 ,  B01F27/113 ,  B01F27/91 ,  C07C263/10 ,  C07C265/14 ,  C07C263/02

CPC classification number: B01J4/004 ,  B01J19/0066 ,  B01J19/006 ,  B01J19/18 ,  B01F27/113 ,  B01F27/91 ,  C07C263/10 ,  C07C265/14 ,  C07C263/02 ,  B01J2204/005 ,  B01J2219/00029 ,  B01J2219/00768

Abstract: A batch reactor according to an embodiment of the present disclosure includes: a reactor receiving a solvent in a liquid phase; a sparger configured to supply a raw material in a gas phase into the reactor; and a stirrer having an impeller on a rotational shaft installed in the reactor in a height direction to stir the solvent and the raw material, in which the impeller includes a radial-type impeller and an axial-type impeller.

公开(公告)号：US20240101508A1

公开(公告)日：2024-03-28

申请号：US18259792

申请日：2021-12-30

Applicant: Hanwha Solutions Corporation

Inventor： Hyun Cheol RYU ,  Ju Wu MIN ,  Keedo HAN

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can minimize thermal denaturation of a reaction product and formation of by-products and obtain a high-purity isocyanate compound during the preparation of an isocyanate compound using phosgene.

公开(公告)号：US20240067601A1

公开(公告)日：2024-02-29

申请号：US18259802

申请日：2021-12-30

Applicant: Hanwha Solutions Corporation

Inventor： Ju Won MIN ,  Hyun Cheol RYU ,  Keedo HAN

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can increase energy efficiency while minimizing thermal denaturation of a reaction product and formation of by-products during the preparation of an isocyanate compound using phosgene.

公开(公告)号：US20240001330A1

公开(公告)日：2024-01-04

申请号：US18254615

申请日：2021-11-26

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Joon Hwan KIM ,  Hyun Cheol RYU ,  Keedo HAN

IPC: B01J19/26 ,  B01J14/00 ,  B01J4/00 ,  B01J19/00

CPC classification number: B01J19/26 ,  B01J14/00 ,  B01J4/002 ,  B01J19/0066

Abstract: A reactor according to an embodiment of the present invention, the reactor including: a mixing chamber formed as a circular tube; a first injection nozzle connected to the mixing chamber while maintaining a predetermined spacing along a circumferential direction and configured to inject a first mixture; an annular chamber disposed spaced apart from an outer side of the mixing chamber; a second injection nozzle configured to connect the annular chamber to the mixing chamber to inject a second mixture supplied to the annular chamber in a direction intersecting the injection of the first mixture; and an outlet pipe connected to the mixing chamber to discharge a reactant produced by mixing the first and second mixtures in the mixing chamber, in which the second injection nozzle is spaced apart from the first injection nozzle by a predetermined angle in the circumferential direction.