Patents by Inventor Jeong Kwon Suh
Jeong Kwon Suh 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: 11850572Abstract: Disclosed herein are an activated carbon catalyst for hydrogen peroxide decomposition, a preparation method thereof and a hydrogen peroxide decomposition method using the same. The activated carbon catalyst for hydrogen peroxide decomposition, provided in an aspect of the present invention may be easily prepared through the carbonization and activation of an ion exchange resin, and safer and higher decomposition efficiency of hydrogen peroxide may be achieved than the conventional catalyst for hydrogen peroxide decomposition through the control of the manganese content and pore properties in the catalyst.Type: GrantFiled: October 31, 2019Date of Patent: December 26, 2023Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jeong Kwon Suh, Ji Sook Hong, Iljeong Heo
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Publication number: 20230312352Abstract: The present invention provides a hyper-branched polymer having a three-dimensional structure, which is applicable to treatment of harmful substances in the atmosphere and has antibacterial activity, as well as a method for manufacturing the same. Further, the present invention provides an antibacterial spherical activated carbon which is ultimately obtained using the hyper-branched polymer as a precursor. The antibacterial spherical activated carbon, which is the final product according to the present invention, may induce a chemical bonding of ion bonds in an antibacterial component to a carrier without use of a separate binder, thereby stably immobilizing the antibacterial component. Furthermore, it is possible to adjust a loading amount of the antibacterial component as well as a specific surface area of the carrier through a simple operation.Type: ApplicationFiled: June 30, 2021Publication date: October 5, 2023Inventors: Jeong Kwon SUH, Ji Sook HONG, Sang Kon LEE, Jae Hoon LEE
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Publication number: 20210402375Abstract: Disclosed herein are an activated carbon catalyst for hydrogen peroxide decomposition, a preparation method thereof and a hydrogen peroxide decomposition method using the same. The activated carbon catalyst for hydrogen peroxide decomposition, provided in an aspect of the present invention may be easily prepared through the carbonization and activation of an ion exchange resin, and safer and higher decomposition efficiency of hydrogen peroxide may be achieved than the conventional catalyst for hydrogen peroxide decomposition through the control of the manganese content and pore properties in the catalyst.Type: ApplicationFiled: October 31, 2019Publication date: December 30, 2021Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jeong Kwon SUH, Ji Sook HONG, Iljeong HEO
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Patent number: 10758893Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.Type: GrantFiled: January 13, 2017Date of Patent: September 1, 2020Assignees: Korea Research Insitute of Chemical Technology, NF CO., Ltd.Inventors: Iljeong Heo, Jeong Kwon Suh, Beom Sik Kim, Tae Sun Chang, Yun Ho Jeong, Ji Hoon Park, Soo Min Kim, Ji Na Choi
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Publication number: 20190009253Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.Type: ApplicationFiled: January 13, 2017Publication date: January 10, 2019Inventors: Iljeong HEO, Jeong Kwon SUH, Beom Sik KIM, Tae Sun CHANG, Yun Ho JEONG, Ji Hoon PARK, Soo Min KIM, Ji Na CHOI
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Patent number: 10113119Abstract: The present invention relates to a monolith catalyst for reforming reaction, and more particularly, to a thermally stable (i.e. thermal resistance-improved) monolith catalyst for reforming reaction having a novel construction such that any one of Group 1A to Group 5A metals are used as a barrier component in the existing catalyst particles to inhibit carbon deposition occurring during the reforming reaction in a process for formation of a reforming monolith catalyst while improving thermal durability as well as non-activation of the catalyst due to a degradation.Type: GrantFiled: July 25, 2017Date of Patent: October 30, 2018Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Il Jeong Heo, Young Woo You, Ji Hoon Park, Jung Hyun Park, Tae Sun Chang, Beom Sik Kim, Jeong Kwon Suh
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Publication number: 20180030357Abstract: The present invention relates to a monolith catalyst for reforming reaction, and more particularly, to a thermally stable (i.e. thermal resistance-improved) monolith catalyst for reforming reaction having a novel construction such that any one of Group 1A to Group 5A metals are used as a barrier component in the existing catalyst particles to inhibit carbon deposition occurring during the reforming reaction in a process for formation of a reforming monolith catalyst while improving thermal durability as well as non-activation of the catalyst due to a degradation.Type: ApplicationFiled: July 25, 2017Publication date: February 1, 2018Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Il Jeong HEO, Young Woo YOU, Ji Hoon PARK, Jung Hyun PARK, Tae Sun CHANG, Beom Sik KIM, Jeong Kwon SUH
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Patent number: 9789471Abstract: The present invention relates to a monolith catalyst for a carbon dioxide reforming reaction and to a preparation method for same, and more specifically the invention provides a preparation method for a monolith catalyst for a methane reforming reaction using carbon dioxide, the method comprising a step of mixing and impregnating a support in a metal precursor solution, coating a monolith substrate with the solution resulting from the mixing and impregnating, drying same and then calcining the monolith substrate coated with the solution resulting from the mixing and impregnating.Type: GrantFiled: October 8, 2015Date of Patent: October 17, 2017Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jeong Kwon Suh, Young Woo You, Ji Hye Lee, Hongchan Ahn, Tae Sun Chang, Beon Sik Kim
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Publication number: 20160030927Abstract: The present invention relates to a monolith catalyst for a carbon dioxide reforming reaction and to a preparation method for same, and more specifically the invention provides a preparation method for a monolith catalyst for a methane reforming reaction using carbon dioxide, the method comprising a step of mixing and impregnating a support in a metal precursor solution, coating a monolith substrate with the solution resulting from the mixing and impregnating, drying same and then calcining the monolith substrate coated with the solution resulting from the mixing and impregnating.Type: ApplicationFiled: October 8, 2015Publication date: February 4, 2016Inventors: Jeong Kwon SUH, Young Woo YOU, Ji Hye LEE, Hongchan AHN, Tae Sun CHANG, Beon Sik KIM
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Patent number: 9162899Abstract: The present invention provides a method for preparing a BaX type zeolite granules comprising: adding a carbohydrate-based molding promoter to NaX type zeolite powder and thereto subsequently spraying and blending alumina sol and silica sol to form granules of the mixture; heating the formed granules to convert the alumina and silica component to aluminosilica so as to generate pores inside the formed granules; hydrothermally treating the resulted granules in a sodium hydroxide aqueous solution under the conditions for zeolite synthesis, thereby converting a portion of the aluminosilica to zeolite; and carrying out ion-exchanging by Ba ions. The present invention also provides BaX type zeolite granules which have excellent strength and can be suitably used as an adsorbent in simulated moving bed (SMB) application.Type: GrantFiled: July 3, 2012Date of Patent: October 20, 2015Assignee: SAMSUNG TOTAL PETROCHEMICALS CO., LTD.Inventors: Jeong Kwon Suh, Beom Sik Kim, Yun Ho Jeong, Jin Suk Lee, Won Young Kim, Ho Sik Chang
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Patent number: 9045349Abstract: The present invention relates to a method for preparing a porous alumina which may be suitably used as a catalyst carrier, an adsorbent, and various surface coating agents and has a boehmite or pseudoboehmite structure having a fine and uniform particle size distribution and a large pore volume.Type: GrantFiled: July 12, 2012Date of Patent: June 2, 2015Assignees: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, ZEOBUILDER CO., LTD.Inventors: Jeong Kwon Suh, Beom Sik Kim, You In Park, Hong Chan Ahn, Yun Ho Jeong, Byung Ki Park, Hak Jun Kim, Jong An Kim, Ji Sook Hong, Won Young Lee, Hyo Sang Yun
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Publication number: 20140161716Abstract: The present invention relates to a method for preparing a porous alumina which may be suitably used as a catalyst carrier, an adsorbent, and various surface coating agents and has a boehmite or pseudoboehmite structure having a fine and uniform particle size distribution and a large pore volume.Type: ApplicationFiled: July 12, 2012Publication date: June 12, 2014Applicants: ZEOBUILDER CO., LTD. a corporation, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY a InstituteInventors: Jeong Kwon Suh, Beom Sik Kim, You In Park, Hong Chan Ahn, Yun Ho Jeong, Kyung Ki Park, Hak Jun Kim, Jong An Kim, Ji Sook Hong, Won Young Lee, Hyo Sang Yun
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Patent number: 8741251Abstract: Disclosed are granular mesoporous silica and a preparation method thereof. The preparation method includes preparing powdered silica containing a structure derivative to form mesopores; preparing a molded precursor including the powdered silica and an inorganic binder or an organic binder; preparing a granular molded article having a predetermined shape by extruding or injection-molding the molded precursor; and removing the structure derivative by calcinating the granular molded article. The granular mesoporous silica represents superior pore characteristics and is used as an adsorbent capable of effectively removing pollutants in water treatment and air pollution treatment.Type: GrantFiled: December 14, 2011Date of Patent: June 3, 2014Assignee: Gwangju Institute of Science and TechnologyInventors: Heechul Choi, Yo Han Kim, Jiyeol Bae, Ji Hae Park, Jeong Kwon Suh
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Publication number: 20130095025Abstract: Disclosed are granular mesoporous silica and a preparation method thereof. The preparation method includes preparing powdered silica containing a structure derivative to form mesopores; preparing a molded precursor including the powdered silica and an inorganic binder or an organic binder; preparing a granular molded article having a predetermined shape by extruding or injection-molding the molded precursor; and removing the structure derivative by calcinating the granular molded article. The granular mesoporous silica represents superior pore characteristics and is used as an adsorbent capable of effectively removing pollutants in water treatment and air pollution treatment.Type: ApplicationFiled: December 14, 2011Publication date: April 18, 2013Applicant: Gwangju Institute of Science and TechnologyInventors: Heechul CHOI, Yo Han KIM, Jiyeol BAE, Ji Hae PARK, Jeong Kwon SUH
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Publication number: 20130012377Abstract: The present invention provides a method for preparing a BaX type zeolite granules comprising: adding a carbohydrate-based molding promoter to NaX type zeolite powder and thereto subsequently spraying and blending alumina sol and silica sol to form granules of the mixture; heating the formed granules to convert the alumina and silica component to aluminosilica so as to generate pores inside the formed granules; hydrothermally treating the resulted granules in a sodium hydroxide aqueous solution under the conditions for zeolite synthesis, thereby converting a portion of the aluminosilica to zeolite; and carrying out ion-exchanging by Ba ions. The present invention also provides BaX type zeolite granules which have excellent strength and can be suitably used as an adsorbent in simulated moving bed (SMB) application.Type: ApplicationFiled: July 3, 2012Publication date: January 10, 2013Inventors: Jeong Kwon Suh, Beom Sik Kim, Yun Ho Jeong, Jin Suk Lee, Won Young Kim, Ho Sik Chang
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Patent number: 8287636Abstract: The present invention relates to a pearlescent pigment with large aspect ratio and a method of their preparation, and particularly to pearlescent pigments prepared by coating a metal or metal precursor on the flaky alpha-alumina crystals obtained by using an aluminum precursor aqueous solution and a zinc precursor aqueous solution as main ingredients. The crystals herein has an average particle thickness of 0.5 ?m or less, an average particle diameter of 15 ?m or higher and a large aspect ratio of 50 or higher, thereby being superior in gloss. The crystals show metal colors and interference colors of silver, gold, red, purple, blue and green.Type: GrantFiled: July 24, 2007Date of Patent: October 16, 2012Assignees: Korea Research Institute of Chemical Technology, CQV Co., Ltd.Inventors: Jung Min Lee, Jeong Kwon Suh, Byung Ki Park, Dong Uk Choe, Gil Wan Chang, Kwang Su Lim, Sung Yun Jo, Kwang Choong Kang
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Patent number: 7993746Abstract: The present invention relates to flaky alpha-alumina crystals with large aspect ratio and its preparation method, and particularly to flaky alpha-alumina crystals comprising aluminum oxide, zinc oxide and tin oxide, which are prepared by obtaining a mixed gel which are prepared by obtaining a mixed gel by means of hydrolysis of an aqueous aluminum precursor solution comprising aqueous flux, aqueous zinc precursor solution and tin precursor aqueous solution, followed by aging, drying and crystallization processes. The crystals herein have an average particle thickness of 0.5 ?m or less, an average particle diameter of 30 ?m or higher and an aspect ratio of 100 or higher, thus being useful as a substrate of high quality pearlescent pigments, an abrasive, ceramic material and a filling material.Type: GrantFiled: August 27, 2007Date of Patent: August 9, 2011Assignees: Korea Research Institute of Chemical Technology, CQV Co., Ltd.Inventors: Jung Min Lee, Jeong Kwon Suh, Byung Ki Park, Dong Uk Choe, Gil Wan Chang, Kwang Su Lim, Sung Yun Jo, Kwang Choong Kang
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Patent number: 7959894Abstract: The present invention relates to a flaky ?-alumina crystal and a preparation method thereof. More particularly, the present invention relates to a flaky ?-alumina crystal comprising aluminum oxide and zinc oxide, which is prepared by hydrolyzing an aluminum precursor solution containing a water-soluble flux and a zinc precursor solution to obtain a gel mixture and aging, drying, calcining and crystallizing it under a specific reaction condition, and a preparation method thereof. Since the flaky ?-alumina crystal of the present invention has a thickness of less than 0.5 ?m, an average particle diameter of at least 15 ?m and an aspect ratio of at least 50, it is useful as high-quality pearlescent pigment material and filler for ceramic materials.Type: GrantFiled: January 26, 2006Date of Patent: June 14, 2011Assignees: Korea Research Institute of Chemical Technology, CQV Co., Ltd.Inventors: Jung Min Lee, Byung Ki Park, Jeong Kwon Suh, Kil Wan Chang, Kwang Su Lim, Sung Yun Jo, Kwang Choong Kang
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Publication number: 20100015445Abstract: The present invention relates to flaky alpha-alumina crystals with large aspect ratio and its preparation method, and particularly to flaky alpha-alumina crystals comprising aluminum oxide, zinc oxide and tin oxide, which are prepared by obtaining a mixed gel which are prepared by obtaining a mixed gel by means of hydrolysis of an aqueous aluminum precursor solution comprising aqueous flux, aqueous zinc precursor solution and tin precursor aqueous solution, followed by aging, drying and crystallization processes. The crystals herein have an average particle thickness of 0.5 um or less, an average particle diameter of 30 ?m or higher and an aspect ratio of 100 or higher, thus being useful as a substrate of high quality pearlescent pigments, an abrasive, ceramic material and a filling material.Type: ApplicationFiled: August 27, 2007Publication date: January 21, 2010Inventors: Jung Min Lee, Jeong Kwon Suh, Byung Ki Park, Dong Uk Choe, Gil Wan Chang, Kwang Su Lim, Sung Yun Jo, Kwang Choong Kang
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Publication number: 20090320719Abstract: The present invention relates to a pearlescent pigment with large aspect ratio and a method of their preparation, and particularly to pearlescent pigments prepared by coating a metal or metal precursor on the flaky alpha-alumina crystals obtained by using an aluminum precursor aqueous solution and a zinc precursor aqueous solution as main ingredients. The crystals herein has an average particle thickness of 0.5 ?m or less, an average particle diameter of 15 ?m or higher and a large aspect ratio of 50 or higher, thereby being superior in gloss. The crystals show metal colors and interference colors of silver, gold, red, purple, blue and green.Type: ApplicationFiled: July 24, 2007Publication date: December 31, 2009Inventors: Jung Min Lee, Jeong Kwon Suh, Byung Ki Park, Dong Uk Choe, Gil Wan Chang, Kwang Su Lim, Sung Yun Jo, Kwang Choong Kang