Patents by Inventor Da Won Jung
Da Won Jung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11534744Abstract: A hydroformylation catalyst having excellent catalytic activity and stability, a composition including the hydroformylation catalyst, and a method of preparing an aldehyde using the hydroformylation catalyst, wherein, when hydroformylation of an olefin compound is performed in the presence of the hydroformylation catalyst to prepare an aldehyde, the normal/iso (n/i) ratio of the prepared aldehyde is lowered, and synthesis gas yield is increased.Type: GrantFiled: January 5, 2021Date of Patent: December 27, 2022Assignee: LG CHEM, LTD.Inventors: Mi Young Kim, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim, Min Ji Choi
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Patent number: 11185852Abstract: The present invention relates to a catalyst composition for hydroformylation and a method of preparing an aldehyde using the same. More specifically, the present invention provides a catalyst composition for hydroformylation including a specific phosphite-based ligand and a transition metal compound in a specific amount range, thereby being capable of greatly lowering a use amount of an expensive transition metal compound and exhibiting excellent catalyst activity or stability. In addition, by using the catalyst composition in hydroformylation, excellent reaction efficiency may be provided and iso-aldehyde may be generated in high yield.Type: GrantFiled: February 2, 2018Date of Patent: November 30, 2021Assignee: LG CHEM, LTD.Inventors: Tae Yun Kim, Min Ji Choi, Sung Shik Eom, Mi Young Kim, Dong Hyun Ko, Da Won Jung
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Publication number: 20210129124Abstract: A hydroformylation catalyst having excellent catalytic activity and stability, a composition including the hydroformylation catalyst, and a method of preparing an aldehyde using the hydroformylation catalyst, wherein, when hydroformylation of an olefin compound is performed in the presence of the hydroformylation catalyst to prepare an aldehyde, the normal/iso (n/i) ratio of the prepared aldehyde is lowered, and synthesis gas yield is increased.Type: ApplicationFiled: January 5, 2021Publication date: May 6, 2021Inventors: Mi Young Kim, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim, Min Ji Choi
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Publication number: 20210039079Abstract: The present invention relates to a catalyst composition for hydroformylation and a method of preparing an aldehyde using the same. More specifically, the present invention provides a catalyst composition for hydroformylation including a specific phosphite-based ligand and a transition metal compound in a specific amount range, thereby being capable of greatly lowering a use amount of an expensive transition metal compound and exhibiting excellent catalyst activity or stability. In addition, by using the catalyst composition in hydroformylation, excellent reaction efficiency may be provided and iso-aldehyde may be generated in high yield.Type: ApplicationFiled: February 2, 2018Publication date: February 11, 2021Inventors: Tae Yun KIM, Min Ji CHOI, Sung Shik EOM, Mi Young KIM, Dong Hyun KO, Da Won JUNG
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Patent number: 10913055Abstract: A hydroformylation catalyst having excellent catalytic activity and stability, a composition including the hydroformylation catalyst, and a method of preparing an aldehyde using the hydroformylation catalyst, wherein, when hydroformylation of an olefin compound is performed in the presence of the hydroformylation catalyst to prepare an aldehyde, the normal/iso (n/i) ratio of the prepared aldehyde is lowered, and synthesis gas yield is increased.Type: GrantFiled: July 4, 2017Date of Patent: February 9, 2021Assignee: LG CHEM, LTD.Inventors: Mi Young Kim, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim, Min Ji Choi
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Patent number: 10625248Abstract: The present invention relates to a catalyst composition for hydroformylation and a hydroformylation method using the same, and more particularly to a catalyst composition for hydroformylation including a phosphoramidite ligand and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, provided are a catalyst composition for hydroformylation which increases productivity and provides superior catalytic activity and stability while lowering an n/i ratio in generated aldehyde upon hydroformylation of an olefinic compound, and a method of hydroformylating an olefinic compound using the catalyst composition. [Representative Figure] FIG.Type: GrantFiled: August 26, 2016Date of Patent: April 21, 2020Assignee: LG CHEM, LTD.Inventors: Tae Yun Kim, Sung Shik Eom, Da Won Jung, Dong Hyun Ko, Mi Young Kim, Min Ji Choi
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Patent number: 10300472Abstract: The present invention relates to a catalyst composition including a phosphorous-based ligand, and a hydroformylation method using the catalyst composition. More particularly, the present invention relates to a catalyst composition, which includes two different kinds of monocoordinated phosphine ligands and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, a catalyst composition lowering a selection ratio of normal aldehyde to iso aldehyde (n/i ratio), which are generated during hydroformylation of an olefinic compound, and exhibiting superior catalytic activity and stability, and a method of hydroformylating an olefinic compound using the catalyst composition are provided.Type: GrantFiled: October 4, 2016Date of Patent: May 28, 2019Assignee: LG CHEM, LTD.Inventors: Min Ji Choi, Mi Young Kim, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim
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Publication number: 20190111416Abstract: The present invention relates to a catalyst composition for hydroformylation and a hydroformylation method using the same, and more particularly to a catalyst composition for hydroformylation including a phosphoramidite ligand and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, provided are a catalyst composition for hydroformylation which increases productivity and provides superior catalytic activity and stability while lowering an n/i ratio in generated aldehyde upon hydroformylation of an olefinic compound, and a method of hydroformylating an olefinic compound using the catalyst composition. [Representative Figure ] FIG.Type: ApplicationFiled: August 26, 2016Publication date: April 18, 2019Inventors: Tae Yun KIM, Sung Shik EOM, Da Won JUNG, Dong Hyun KO, Mi Young KIM, Min Ji CHOI
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Publication number: 20180290132Abstract: A hydroformylation catalyst having excellent catalytic activity and stability, a composition including the hydroformylation catalyst, and a method of preparing an aldehyde using the hydroformylation catalyst, wherein, when hydroformylation of an olefin compound is performed in the presence of the hydroformylation catalyst to prepare an aldehyde, the normal/iso (n/i) ratio of the prepared aldehyde is lowered, and synthesis gas yield is increased.Type: ApplicationFiled: July 4, 2017Publication date: October 11, 2018Applicant: LG CHEM, LTD.Inventors: Mi Young KIM, Sung Shik EOM, Dong Hyun KO, Da Won JUNG, Tae Yun KIM, MIn Ji CHOI
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Patent number: 10093603Abstract: The present disclosure relates to an apparatus for generating glycol and a method thereof. More particularly, the present disclosure relates to an apparatus for generating glycol including (a) an aldol reactor; (b) an extractor for extracting an aldol product, unsaturated aldehyde, using an organic solvent that is not mixed with water; (c) a distillation column for removing a raw material from a solution extract that is discharged from the extractor; (d) a hydrogenation reactor for hydrogenating a solution extract that is discharged from the distillation column; and (e) a divided-wall distillation column for isolating glycol from a hydrogenated solution product that is discharged from the hydrogenation reactor, wherein the hydrogenation reactor is a fixed-bed catalytic reactor that is filled with a copper-based catalyst, and a method of preparing the same.Type: GrantFiled: August 25, 2016Date of Patent: October 9, 2018Assignee: LG Chem, Ltd.Inventors: Sung Shik Eom, Da Won Jung, Tae Yun Kim, Jung Uk Choi, Dong Hyun Ko, Mi Young Kim, Min Ji Choi
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Publication number: 20180272326Abstract: The present invention relates to a catalyst composition including a phosphorous-based ligand, and a hydroformylation method using the catalyst composition. More particularly, the present invention relates to a catalyst composition, which includes two different kinds of monocoordinated phosphine ligands and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, a catalyst composition lowering a selection ratio of normal aldehyde to iso aldehyde (n/i ratio), which are generated during hydroformylation of an olefinic compound, and exhibiting superior catalytic activity and stability, and a method of hydroformylating an olefinic compound using the catalyst composition are provided.Type: ApplicationFiled: October 4, 2016Publication date: September 27, 2018Inventors: Min Ji CHOI, Mi Young Kim, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim
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Patent number: 9914682Abstract: Disclosed are a highly efficient neopentyl glycol preparation method and a device therefor. The method includes adding a hydroxypivaldehyde solution and hydrogen to a hydrogenation reactor that includes a hydrogenation catalyst. The hydroxypivaldehyde solution includes 6 to 30% by weight of hydroxypivaldehyde, 35 to 70% by weight of neopentyl glycol, 10 to 30% by weight of alcohol, and 10 to 30% by weight of water. The neopentyl glycol preparation method does not require separate heating in a section of a feed vessel to an inlet of a hydrogenation reactor unlike conventional technologies to save energy, and, at the same time, by-products with a high boiling point are not generated in the section to prevent poisoning of a hydrogenation catalyst in a reactor due to the by-products with a high boiling point and increase a hydrogenation yield, and a device therefor can be provided.Type: GrantFiled: September 15, 2015Date of Patent: March 13, 2018Assignee: LG CHEM, LTD.Inventors: Sung Shik Eom, Dong Hyun Ko, Mi Young Kim, Da Won Jung, Tae Yun Kim, Min Ji Choi
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Patent number: 9902835Abstract: Disclosed is an ester plasticizer composition, as a plasticizer composition, which comprises a hybrid alkyl-substituted terephthalate compound and a non-hybrid alkyl-substituted terephthalate compound as active ingredients, improves workability due to high absorption speed for the resins and short melting time, and thus may imparts a uniform foaming property upon being applied to wallpaper formulation.Type: GrantFiled: June 23, 2015Date of Patent: February 27, 2018Assignee: LG Chem, Ltd.Inventors: Mi Yeon Lee, Sung Shik Eom, Dong Hyun Ko, O Hak Kwon, Da Won Jung, Gyu Il Lee
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Publication number: 20170349512Abstract: The present disclosure relates to an apparatus for generating glycol and a method thereof. More particularly, the present disclosure relates to an apparatus for generating glycol including (a) an aldol reactor; (b) an extractor for extracting an aldol product, unsaturated aldehyde, using an organic solvent that is not mixed with water; (c) a distillation column for removing a raw material from a solution extract that is discharged from the extractor; (d) a hydrogenation reactor for hydrogenating a solution extract that is discharged from the distillation column; and (e) a divided-wall distillation column for isolating glycol from a hydrogenated solution product that is discharged from the hydrogenation reactor, wherein the hydrogenation reactor is a fixed-bed catalytic reactor that is filled with a copper-based catalyst, and a method of preparing the same.Type: ApplicationFiled: August 25, 2016Publication date: December 7, 2017Inventors: Sung Shik EOM, Da Won JUNG, Tae Yun KIM, Jung Uk CHOI, Dong Hyun KO, Mi Young KIM, Min Ji CHOI
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Patent number: 9796827Abstract: Disclosed is an ester plasticizer composition, as a plasticizer composition, which comprises a hybrid alkyl-substituted terephthalate compound and a non-hybrid alkyl-substituted terephthalate compound as active ingredients, improves workability due to high absorption speed for the resins and short melting time, and thus may imparts a uniform foaming property upon being applied to wallpaper formulation.Type: GrantFiled: July 3, 2013Date of Patent: October 24, 2017Assignee: LG Chem, Ltd.Inventors: Mi Yeon Lee, Sung Shik Eom, Dong Hyun Ko, O Hak Kwon, Da Won Jung, Gyu Il Lee
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Patent number: 9714211Abstract: Provided are a plasticizer and a resin composition including the plasticizer, and a method of preparing the same. The plasticizer may improve physical properties, such as light resistance required for a compound formulation or viscosity, bleeding phenomenon, and gelling property required for a sheet formulation, when used as a plasticizer of a resin composition, by improving poor physical properties that have been ascribed to structural limitations although having environmental friendliness.Type: GrantFiled: October 22, 2014Date of Patent: July 25, 2017Assignee: LG Chem, Ltd.Inventors: Hyun Kyu Kim, Da Won Jung, Mi Yeon Lee, Dong Hyun Ko
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Patent number: 9707552Abstract: Disclosed are a catalyst composition containing a phosphorous-based ligand and a hydroformylation process using the same. More specifically, disclosed are a catalyst composition containing a monodentate phosphite ligand, a monodentate phosphine ligand and a transition metal catalyst, wherein the total content of the entire ligand including the monodentate phosphite ligand and the monodentate phosphine ligand is 1 to 33 moles, based on 1 mole of the transition metal catalyst, and a hydroformylation method using the same. The present invention has an effect of providing a catalyst composition which reduces an N/I (ratio of normal to iso) selectivity of aldehydes produced by hydroformylation of an olefin-based compound and exhibits superior catalytic activity and stability, and a hydroformylation method of an olefin-based compound using the catalyst composition.Type: GrantFiled: October 19, 2015Date of Patent: July 18, 2017Assignee: LG CHEM. LTD.Inventors: Mi Young Kim, Min Ji Choi, Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Tae Yun Kim
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Publication number: 20170197201Abstract: Disclosed are a catalyst composition containing a phosphorous-based ligand and a hydroformylation process using the same. More specifically, disclosed are a catalyst composition containing a monodentate phosphite ligand, a monodentate phosphine ligand and a transition metal catalyst, wherein the total content of the entire ligand including the monodentate phosphite ligand and the monodentate phosphine ligand is 1 to 33 moles, based on 1 mole of the transition metal catalyst, and a hydroformylation method using the same. The present invention has an effect of providing a catalyst composition which reduces an N/I (ratio of normal to iso) selectivity of aldehydes produced by hydroformylation of an olefin-based compound and exhibits superior catalytic activity and stability, and a hydroformylation method of an olefin-based compound using the catalyst composition.Type: ApplicationFiled: October 19, 2015Publication date: July 13, 2017Inventors: Mi Young KIM, Min Ji CHOI, Sung Shik EOM, Dong Hyun KO, Da Won JUNG, Tae Yun KIM
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Patent number: 9616422Abstract: Disclosed are a catalyst composition and a method of hydroformylating olefin using the same, which may maintain catalyst activity through improvement of catalyst stability and reduce a use amount of a ligand while improving selectivity to iso-aldehyde, by using a specific ligand to a transition metal catalyst and a ligand stabilizer together in hydroformylation of olefin.Type: GrantFiled: September 25, 2014Date of Patent: April 11, 2017Assignee: LG CHEM, LTD.Inventors: Sung Shik Eom, Dong Hyun Ko, Da Won Jung, Min Soo Kim, Tae Yun Kim
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Patent number: 9587087Abstract: Disclosed are a method for preparing an ester composition and a resin composition comprising the ester composition. It is possible to suitably prepare a plasticizer composition which improves processability due to high absorption rate and short fusion time to resins and thus provides superior physical properties when processed with resins.Type: GrantFiled: June 25, 2014Date of Patent: March 7, 2017Assignee: LG Chem, Ltd.Inventors: Hyun Kyu Kim, Da Won Jung, Mi Yeon Lee, Dong Hyun Ko