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公开(公告)号：US20180237372A1
公开(公告)日：2018-08-23
申请号：US15752181
申请日：2017-01-31
Inventor： Won Jae LEE , Dong Su SONG , Yong Jin CHOE , Hyun Joo LEE , Min Su KIM
CPC classification number: C07C51/25 , B01J23/44 , B01J23/46 , B01J23/52 , B01J23/58 , B01J23/60 , B01J23/66 , B01J23/682 , B01J23/685 , B01J23/686 , B01J23/688 , B01J23/74 , B01J23/78 , B01J23/80 , B01J23/89 , B01J23/8906 , B01J23/8913 , B01J23/892 , B01J23/8946 , B01J23/8953 , B01J35/0013 , B01J35/006 , B01J35/023 , B01J35/08 , B01J37/0072 , B01J37/009 , B01J37/0211 , B01J37/16 , B01J2523/00 , C07C51/44 , C07C51/50 , C07C57/04 , B01J2523/19 , B01J2523/22 , B01J2523/824
Abstract: A method for preparing acrylic acid, more specifically, to a method for preparing acrylic acid under a neutral condition at high yield in a short time without using a base, unlike the prior art in which a base is essentially used. The acrylic acid is produced using a supported catalyst having a specific composition when preparing acrylic acid by oxidation of allyl alcohol. Particularly, the preparation method can recover acrylic acid rather than acrylic acid salt as a final product, and thus has an advantage that the overall process cost can be reduced by eliminating essential processes in the prior art, such as ion exchange after the acidification process required for the conversion of acrylic acid salt to acrylic acid.
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2.发明申请公开(公告)号：US20190233976A1
公开(公告)日：2019-08-01
申请号：US16340887
申请日：2017-10-27
Applicant: LG CHEM, LTD.
Inventor： Eugene OH , Juhan KIM , Ji Eun KIM , Won Jae LEE , Hyunjung CHO , Kun-Hong LEE
IPC: D01F9/12 , C01B32/168 , C01B32/162 , D06M10/02
CPC classification number: D01F9/12 , C01B32/162 , C01B32/168 , C01B2202/08 , C01P2002/82 , C01P2004/16 , D01D1/06 , D02G3/16 , D02G3/44 , D06M10/02
Abstract: The present invention relates to a method for producing a carbon nanotube fiber aggregate and provides a carbon nanotube fiber aggregate having an improved level of alignment through ultrasonic wave application and low speed recovery.
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公开(公告)号：US20150152036A1
公开(公告)日：2015-06-04
申请号：US14556688
申请日：2014-12-01
Applicant: LG CHEM, LTD.
Inventor： Myungjin KONG , Won Jae LEE , Yong-Jin CHOE
IPC: C07C67/08 , C07D319/06 , B01J19/10 , C07D317/24
CPC classification number: B01J19/10 , C07D317/24 , C07D319/06
Abstract: This invention relates to a method of preparing an ester compound, including adding carboxylic acid to a mixture of glycerol and acetone in the presence of a sulfuric acid catalyst and applying an ultrasonic wave to induce an esterification reaction, and to an ester compound prepared thereby.
Abstract translation: 本发明涉及一种制备酯化合物的方法，包括在硫酸催化剂和施加超声波诱导酯化反应的存在下，向甘油和丙酮的混合物中加入羧酸，以及由其制备的酯化合物。
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公开(公告)号：US20190177166A1
公开(公告)日：2019-06-13
申请号：US16321951
申请日：2017-08-11
Applicant: LG CHEM, LTD.
Inventor： Eugene OH , Juhan KIM , Ji Eun KIM , Won Jae LEE
IPC: C01B32/164 , D01D7/00 , C01B32/162
Abstract: The present invention relates to a method for preparing a carbon nanotube fiber aggregate formed of single-wall carbon nanotubes, and the manufacturing efficiency of a carbon nanotube fiber comprising single-wall carbon nanotubes can be improved by controlling the molar ratio of a carbon source and of a reducing gas in a carrier gas.
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5.发明申请METHOD FOR PREPARING POLYAROMATIC OXIDE AND POLYAROMATIC OXIDE PREPARED THEREBY 有权制备多氧化物和制备的多氧化物的方法公开(公告)号：US20160244386A1
公开(公告)日：2016-08-25
申请号：US15028286
申请日：2015-01-15
Applicant: LG CHEM, LTD.
Inventor： Ji Eun KIM , Won Jae LEE , Yong Jin CHOE , Won Jong KWON , Hyun NAM , Kwon Nam SOHN
IPC: C07C27/12
Abstract: Disclosed are a method of preparing polyaromatic oxide and polyaromatic oxide prepared thereby, wherein the method includes (a) placing a plurality of kinds of polyaromatic hydrocarbons and water in a reactor and then stirring them; (b) increasing the temperature inside the reactor to 150 to 300° C. and then feeding a gas containing 10 wt % or more of oxygen into the reactor to increase the partial pressure of oxygen inside the reactor to 2 to 30 bar; and (c) reacting the plurality of kinds of polyaromatic hydrocarbons with oxygen to oxidize the plurality of kinds of polyaromatic hydrocarbons.
Abstract translation: 公开了一种制备由此制备的聚芳香氧化物和聚芳香氧化物的方法，其中所述方法包括（a）将多种多芳族烃和水放入反应器中，然后搅拌; （b）将反应器内的温度升高至150-300℃，然后将含有10重量％或更多氧气的气体进料到反应器中以将反应器内的氧分压提高至2至30巴; 和（c）使多种多芳族烃与氧反应以氧化多种多芳族烃。
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Patent Agency Ranking
公开(公告)号：US20230183070A1
公开(公告)日：2023-06-15
申请号：US16464488
申请日：2018-09-04
Applicant: LG CHEM, LTD.
Inventor： Eugene OH , Youngjin Yl , Juhan KIM , Ji Eun KIM , Jun Won CHOI , Won Jae LEE , Ye Hoon IM
IPC: C01B32/164 , C01B32/162 , D01F9/127
CPC classification number: C01B32/164 , C01B32/162 , D01F9/1272 , C01P2004/51 , D10B2401/063
Abstract: The present invention relates to a method for preparing a carbon nanotube fiber which is a continuous array of carbon nanotube. The present invention enables minimization of rotational flow inside a tube reactor and thus can facilitate enhanced tensile strength of the prepared carbon nanotube fiber.
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公开(公告)号：US20200055734A1
公开(公告)日：2020-02-20
申请号：US16348352
申请日：2018-01-25
Applicant: LG CHEM, LTD.
Inventor： Eugene OH , Juhan KIM , Ji Eun KIM , Jaehong LEE , Won Jae LEE
IPC: C01B32/174
Abstract: The present invention relates to a method for enhancing tensile strength of a carbon nanotube (CNT) fiber aggregate, comprising dispersing a CNT fiber aggregate with chlorosulfonic acid (CSA), followed by thermal treatment, wherein a particular magnitude of tension is applied upon the thermal treatment, whereby the CNT fiber aggregate is increased in alignment level and tensile strength.
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公开(公告)号：US20160122272A1
公开(公告)日：2016-05-05
申请号：US14892849
申请日：2014-06-27
Applicant: LG CHEM, LTD.
Inventor： Won Jae LEE , Yong-Jin CHOE , Hyun NAM , Myungjin KONG
IPC: C07C51/41
CPC classification number: C07C51/41 , B01J23/52 , B01J23/66 , B01J23/68 , C07C29/60 , C07C51/25 , C07C51/377 , C07C33/03 , C07C59/01 , C07C57/04
Abstract: Disclosed is a method of preparing acrylic acid from glycerol, including: (a) preparing products including allyl alcohol from reactants including glycerol and carboxylic acid; (b) adding a heterogeneous catalyst and a basic solution to the product including allyl alcohol and then performing oxidation, thus preparing a mixture composed of 3-hydroxypropionic acid and acrylic acid; (c) dehydrating 3-hydroxypropionic acid of the mixture composed of 3-hydroxypropionic acid and acrylic acid, thus producing acrylic acid.
Abstract translation: 公开了一种从甘油制备丙烯酸的方法，包括：（a）从包括甘油和羧酸的反应物制备包括烯丙醇的产物; （b）向包括烯丙醇的产物中加入非均相催化剂和碱性溶液，然后进行氧化，从而制备由3-羟基丙酸和丙烯酸组成的混合物; （c）由3-羟基丙酸和丙烯酸组成的混合物脱水3-羟基丙酸，从而产生丙烯酸。
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公开(公告)号：US20160115109A1
公开(公告)日：2016-04-28
申请号：US14893304
申请日：2014-06-27
Applicant: LG CHEM, LTD.
Inventor： Won Jae LEE , Myungjin KONG , Yong-Jin CHOE , Hyun NAM
Abstract: Disclosed are a method of preparing allyl alcohol and allyl alcohol prepared thereby. The method of preparing allyl alcohol includes adding glycerol with formic acid in an amount of 0.8˜2 equivalents relative to 1 equivalent of glycerol, and increasing a reaction temperature to 220˜260° C. from room temperature at a heating rate of 2.0˜7.0° C./min so that glycerol and formic acid are reacted.
Abstract translation: 公开了制备由此制备的烯丙醇和烯丙醇的方法。 制备烯丙醇的方法包括相对于1当量甘油将甘油与甲酸相加的量为0.8〜2当量，并将反应温度从室温以2.0〜7.0的升温速度提高至220〜260℃ °C / min，使甘油和甲酸反应。
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10.发明申请HETEROGENEOUS CATALYST FOR PRODUCTION OF 3-HYDROXYPROPIONIC ACID FROM ALLYL ALCOHOL, AND METHOD FOR PREPARATION OF 3-HYDROXYPROPIONIC ACID FROM ALLYL ALCOHOL USING THE SAME 有权用于从ALLYL酒精制备3-羟基丙酸的异构催化剂及使用其制备来自所有醇的3-羟基丙酸的方法公开(公告)号：US20160096170A1
公开(公告)日：2016-04-07
申请号：US14579480
申请日：2014-12-22
Applicant: LG CHEM, LTD.
Inventor： Dae Sung KIM , Won Jae LEE , Yong-Jin CHOE , Hyunjoo LEE , Sungpil YANG
CPC classification number: C07C51/25 , B01J23/52 , B01J23/66 , B01J35/0013 , B01J37/0211 , B01J37/0213 , C07C59/01
Abstract: Disclosed herein are a heterogeneous catalyst for the preparation of 3-hydroxypropionic acid (3-HPA) from allyl alcohol, and a method for the preparation of 3-HPA from allyl alcohol using the catalyst. In the presence of the heterogeneous catalyst containing gold on a carrier, a liquid-phase reaction is conducted to produce 3-HPA from allyl alcohol at high yield.
Abstract translation: 本文公开了用于从烯丙醇制备3-羟基丙酸（3-HPA）的非均相催化剂，以及使用该催化剂从烯丙醇制备3-HPA的方法。 在载体上含有金的多相催化剂的存在下，进行液相反应，以高产率从烯丙醇产生3-HPA。
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