Patents by Inventor Ju-Yeon Park
Ju-Yeon Park 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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Publication number: 20230251752Abstract: A roll map of an electrode coating process includes a roll map bar and a representation part. The roll map bar is displayed on a screen in synchronization with movement of an electrode between an unwinder and a rewinder while being coated with an electrode slurry in a roll-to-roll state. The roll map bar is displayed in the form of a bar by simulating the electrode in the roll-to-roll state. The representation part is configured to visually show either one of or both quality-related and defect-related acquired data associated with the electrode coating process. The acquired data is shown at a certain location on the roll map bar corresponding to a location in the electrode at which the data is measured. A roll map of an electrode coating process is generated by a process. A roll map of an electrode coating process is generated by a system.Type: ApplicationFiled: March 11, 2022Publication date: August 10, 2023Applicant: LG Energy Solution, Ltd.Inventors: Jun Hyo Su, Jong Seok Park, Dong Yeop Lee, Ki Deok Han, Byoung Eun Han, Seung Huh, Ju Yeon Park
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Patent number: 10857525Abstract: The present invention relates to a catalyst for preparing acrolein and acrylic acid, and a preparation method thereof. The catalyst according to the present invention can be uniformly packed in a reactor and the collapse of the catalyst can be minimized because it has excellent mechanical properties, and it can be stably used for a long period of time.Type: GrantFiled: May 26, 2014Date of Patent: December 8, 2020Assignee: LG CHEM, LTD.Inventors: Hyun-Sub Lim, Duk-Ki Kim, Hyun-Jong Shin, Ju-Yeon Park, Byung-Yul Choi, Young-Hyun Choe
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Patent number: 10569260Abstract: The present invention relates to a method for preparing a catalyst and a method for preparing unsaturated carboxylic acid using the catalyst prepared according to the preparation method. According to the method for preparing a catalyst, unsaturated carboxylic acid can be provided from an unsaturated aldehyde with a high conversion rate and selectivity.Type: GrantFiled: October 25, 2017Date of Patent: February 25, 2020Assignee: LG CHEM, LTD.Inventors: Byung Yul Choi, Young Hyun Choe, Duk Ki Kim, Hyun Jong Shin, Ju Yeon Park, Hyun Sub Lim, Hyo Sang You
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Publication number: 20190060884Abstract: The present invention relates to a method for preparing a catalyst and a method for preparing unsaturated carboxylic acid using the catalyst prepared according to the preparation method. According to the method for preparing a catalyst, unsaturated carboxylic acid can be provided from an unsaturated aldehyde with a high conversion rate and selectivity.Type: ApplicationFiled: October 25, 2017Publication date: February 28, 2019Inventors: Byung Yul CHOI, Young Hyun CHOE, Duk Ki KIM, Hyun Jong SHIN, Ju Yeon PARK, Hyun Sub LIM, Hyo Sang YOU
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Patent number: 9433931Abstract: Disclosed are a high-performance polyoxometalate catalyst and a method of preparing the same. More particularly, disclosed are a high-performance polyoxometalate catalyst which may enhance activity and selectivity by controlling the content of vanadium, etc. exhibits superior reproducibility, and may produce unsaturated carboxylic acid with high yield and long lifespan from unsaturated aldehyde, and a method of preparing the same.Type: GrantFiled: July 6, 2015Date of Patent: September 6, 2016Assignee: LG CHEM, LTD.Inventors: Byung Yul Choi, Hyun Jong Shin, Ju Yeon Park, Young Hyun Choi, Duk Ki Kim, Hyun Sub Lim
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Publication number: 20160175818Abstract: Disclosed are a high-performance polyoxometalate catalyst and a method of preparing the same. More particularly, disclosed are a high-performance polyoxometalate catalyst which may enhance activity and selectivity by controlling the content of vanadium, etc. exhibits superior reproducibility, and may produce unsaturated carboxylic acid with high yield and long lifespan from unsaturated aldehyde, and a method of preparing the same.Type: ApplicationFiled: July 6, 2015Publication date: June 23, 2016Inventors: Byung Yul CHOI, Hyun Jong SHIN, Ju Yeon PARK, Young Hyun CHOI, Duk Ki KIM, Hyun Sub LIM
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Publication number: 20160001270Abstract: The present invention relates to a catalyst for preparing acrolein and acrylic acid, and a preparation method thereof. The catalyst according to the present invention can be uniformly packed in a reactor and the collapse of the catalyst can be minimized because it has excellent mechanical properties, and it can be stably used for a long period of time.Type: ApplicationFiled: May 26, 2014Publication date: January 7, 2016Inventors: Hyun-Sub LIM, Duk-Ki KIM, Hyun-Jong SHIN, Ju-Yeon PARK, Byung-Yul CHOI, Young-Hyun CHOE
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Publication number: 20150367329Abstract: The present invention relates to a catalyst for preparing acrolein and acrylic acid, and use of the same. The catalyst according to the present invention can be uniformly packed in the reactor and collapse of the catalyst can be minimized because it has excellent mechanical properties, and it can lower initial pressure of the reaction by securing stable pore spaces and can be stably used for a long period of time. In addition, the preparation method of acrolein and acrylic acid according to the present invention can provide more improved production efficiency by using the catalyst.Type: ApplicationFiled: May 26, 2014Publication date: December 24, 2015Applicant: LG CHEM. LTD.Inventors: Hyun-Sub LIM, Hyun-Jong SHIN, Ju-Yeon PARK, Byung-Yul CHOI, Young-Hyun CHOE, Duk-Ki KIM
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Patent number: 8114805Abstract: The present invention relates to a method of preparing a heteropoly acid catalyst used for the production of methacrylic acid by gas phase oxidation of methacrolein, more precisely a method of preparing a heteropoly acid catalyst comprising the steps of preparing a slurry by adding metal precursors and ammonium salt to protonic acid Keggin-type heteropoly acid aqueous solution and stirring thereof; and drying, molding and firing the slurry to give a catalyst. The present invention provides a method of preparing a heteropoly acid catalyst exhibiting high methacrolein conversion rate and methacrylic acid selectivity without pre-firing process by using high purity protonic acid Keggin-type heteropoly acid and ammonium salt.Type: GrantFiled: June 13, 2008Date of Patent: February 14, 2012Assignee: LG Chem, Ltd.Inventors: Hyun-Kuk Noh, Hyun-jong Shin, Won-ho Lee, Byung-yul Choi, Gyo-hyun Hwang, Ju-yeon Park, Duk-ki Kim, Young-hyun Choe, Min-ho Kil, Min-suk Kim, Young-jin Cho, Sung-chul Lim
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Publication number: 20100298601Abstract: The present invention relates to a catalyst system, an oxidation reactor comprising the same, and a method for producing an acrolein and an acrylic acid by using the same. By using the catalyst system according to the present invention, when acrolein and acrylic acid are produced, since heat accumulation in a catalyst layer may be effectively prevented, catalyst deterioration may be prevented, and the catalyst may be stably used for a long period of time. In addition, an acrolein and an acrylic acid may be produced at high selectivity and high yield.Type: ApplicationFiled: January 16, 2009Publication date: November 25, 2010Applicant: LG CHEM, LTD.Inventors: Byung-Yul Choi, Hyun-Jong Shin, Young-Hyun Choe, Young-Jin Cho, Duk-Ki Kim, Ju-Yeon Park
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Publication number: 20100184591Abstract: The present invention relates to a method of preparing a heteropoly acid catalyst used for the production of methacrylic acid by gas phase oxidation of methacrolein, more precisely a method of preparing a heteropoly acid catalyst comprising the steps of preparing a slurry by adding metal precursors and ammonium salt to protonic acid Keggin-type heteropoly acid aqueous solution and stirring thereof; and drying, molding and firing the slurry to give a catalyst. The present invention provides a method of preparing a heteropoly acid catalyst exhibiting high methacrolein conversion rate and methacrylic acid selectivity without pre-firing process by using high purity protonic acid Keggin-type heteropoly acid and ammonium salt.Type: ApplicationFiled: June 13, 2008Publication date: July 22, 2010Applicant: LG CHEM, LTD.Inventors: Hyun-Kuk Noh, Hyun-jong Shin, Won-ho Lee, Byung-yul Choi, Gyo-hyun Hwang, Ju-yeon Park, Duk-ki Kim, Young-hyun Choe, Min-ho Kil, Min-suk Kim, Young-jin Cho, Sung-chul Lim
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Patent number: 7491673Abstract: The present invention provides a method for producing a catalyst comprising an inert carrier an a mixed metal oxide as a catalytically active component supported on the inert carrier, the method comprising the steps of: a) adding organic acid(s) into solvent(s) and salt of each metal component which will form a mixed metal oxide, to prepare a catalyst precursor solution for the mixed metal oxide; b) adjusting pH of the catalyst precursor solution using a basic solution; c) containing the catalyst precursor solution for the mixed metal oxide, of which the pH is adjusted, on the inert carrier, d) removing the solvent(s); and e) calcining the resultant from step d. The catalyst produced by the present method has improved reproducibility, activity and yield, while maintaining a high selectivity.Type: GrantFiled: July 11, 2003Date of Patent: February 17, 2009Assignee: LG Chem, Ltd.Inventors: Jung Hwa Kang, Won Ho Lee, Min Ho Kil, Hyun Jong Shin, Byung Yul Choi, Yeon Shick Yoo, Young Hyun Choi, Ju Yeon Park
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Patent number: 7341974Abstract: The present invention relates to a method for preparing a catalyst for partial oxidation of propylene, particularly a method for preparing a catalyst for preparing an acrylic acid, using an organic acid such as a citric acid, maleic acid and oxalic acid. The complex oxide catalyst according to the invention, when used in the gas phase catalytic oxidation of propylene, may produce acrolein in high yield.Type: GrantFiled: January 3, 2003Date of Patent: March 11, 2008Assignee: LG Chem, Ltd.Inventors: Jung Hwa Kang, Won Ho Lee, Min Ho Kil, Hyun Jong Shin, Byung Yul Choi, Yeon Shick Yoo, Young Hyun Choe, Ju Yeon Park
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Patent number: 7285514Abstract: The present invention relates to a method for preparing a catalyst for partial oxidation of acrolein, particularly to a method for preparing a catalyst for partial oxidation of acrolein that has a superior acrolein conversion rate, acrylic acid activity, selectivity, and yield, by introducing a base solution and an acid solution into a catalyst suspension prepared by dissolving salts of metal ingredients of the catalyst in water to control the acidity of the catalyst suspension, contacting the catalyst suspension of which acidity is controlled with an inert support to support the catalyst thereon, and then drying and firing the supported catalyst.Type: GrantFiled: October 24, 2003Date of Patent: October 23, 2007Assignee: LG Chem, Ltd.Inventors: Jung-Hwa Kang, Won-Ho Lee, Min-Ho Kil, Hyun-Jong Shin, Byung-Yul Choi, Yeon-Shick Yoo, Young-Hyun Choe, Ju-Yeon Park
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Publication number: 20040192545Abstract: The present invention relates to a method for preparing a catalyst for partial oxidation of propylene, particularly a method for preparing a catalyst for preparing an acrylic acid, using an organic acid such as a citric acid, maleic acid and oxalic acid. The complex oxide catalyst according to the invention, when used in the gas phase catalytic oxidation of propylene, may produce acrolein in high yield.Type: ApplicationFiled: February 11, 2004Publication date: September 30, 2004Inventors: Jung Hwa Kang, Won Ho Lee, Min Ho Kil, Hyun Jong Shin, Byung Yul Choi, Yeon Shick Yoo, Young Hyun Choe, Ju Yeon Park
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Publication number: 20040116283Abstract: The present invention relates to a method for preparing a catalyst for partial oxidation of acrolein, particularly to a method for preparing a catalyst for partial oxidation of acrolein that has a superior acrolein conversion rate, acrylic acid activity, selectivity, and yield, by introducing a base solution and an acid solution into a catalyst suspension prepared by dissolving salts of metal ingredients of the catalyst in water to control the acidity of the catalyst suspension, contacting the catalyst suspension of which acidity is controlled with an inert support to support the catalyst thereon, and then drying and firing the supported catalyst.Type: ApplicationFiled: October 24, 2003Publication date: June 17, 2004Inventors: Jung-Hwa Kang, Won-Ho Lee, Min-Ho Kil, Hyun-Jong Shin, Byung-Yul Choi, Yeon-Shick Yoo, Young-Hyun Choe, Ju-Yeon Park