公开(公告)号：US11673121B2

公开(公告)日：2023-06-13

申请号：US17553795

申请日：2021-12-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeong-Myeong Ha ,  Lien Thi Do ,  Jae Wook Choi ,  Dong Jin Suh ,  Young Hyun Yoon ,  Gi Seok Yang ,  Hyun Joo Lee

IPC: B01J23/30 ,  B01J23/34 ,  B01J21/06 ,  B01J23/00 ,  B01J37/04 ,  B01J37/08 ,  B01J37/00 ,  C07C2/84

CPC classification number: B01J23/30 ,  B01J21/063 ,  B01J23/002 ,  B01J23/34 ,  B01J37/0036 ,  B01J37/04 ,  B01J37/08 ,  C07C2/84 ,  C07C2523/02 ,  C07C2523/30 ,  C07C2523/34

Abstract: Disclosed are a catalyst for oxidative coupling reaction of methane, a method for preparing the same, and a method for oxidative coupling reaction of methane using the same. The catalyst includes a mixed metal oxide, which is a mixed oxide of metals including sodium (Na), tungsten (W), manganese (Mn), barium (Ba) and titanium (Ti). It is possible to obtain paraffins, such as ethane and propane, and olefins, such as ethylene and propylene, with high efficiency through the method for oxidative coupling reaction of methane using the catalyst.

公开(公告)号：US09199950B2

公开(公告)日：2015-12-01

申请号：US14313153

申请日：2014-06-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo Lee ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Jungho Jae ,  Ji Sik Choi

IPC: C07D301/02 ,  C07D317/36

CPC classification number: C07D301/02 ,  C07D303/14 ,  C07D317/36

Abstract: Disclosed is a method for producing glycidol by successive catalytic reactions. The method includes a series of reactions for the preparation of glycerol carbonate from glycerol and the decarboxylation of the glycerol carbonate. Specifically, the method includes i) reacting glycerol with a dialkyl carbonate to prepare glycerol carbonate, and ii) subjecting the glycerol carbonate to decarboxylation wherein a base is added as a catalyst in step i) and is allowed to react with an acid to form a metal salt after step i), and the salt is used as a catalyst in step ii). According to the method, inexpensive and easy-to-purchase acid and base catalysts can be used to produce glycidol from glycerol, a by-product of biodiesel production, as a starting material in high yield with high selectivity in a convenient, simple, and environmentally friendly way. In addition, the method eliminates the need to separate the base catalyst.

Abstract translation: 公开了通过连续催化反应制备缩水甘油的方法。 该方法包括从甘油制备甘油碳酸酯和碳酸甘油酯脱羧的一系列反应。 具体地说，该方法包括：i）使甘油与碳酸二烷基酯反应以制备甘油碳酸酯，和ii）使甘油碳酸酯脱羧，其中在步骤i）中加入碱作为催化剂，并使其与酸反应形成 步骤i）后的金属盐，并且该盐在步骤ii）中用作催化剂。 根据该方法，可以使用廉价且易于购买的酸和碱催化剂，以生产生物柴油的副产物甘油作为起始原料，以方便，简单和高效的方式以高选择性产生缩水甘油 环保的方式。 此外，该方法不需要分离碱催化剂。

公开(公告)号：US08894956B2

公开(公告)日：2014-11-25

申请号：US14087373

申请日：2013-11-22

Applicant: Korea Institute of Science and Technology

Inventor： Hyun Joo Lee ,  Seung Rok Lim ,  Kean Im Lee ,  Chang Soo Kim ,  Hoon Sik Kim ,  Ji Sik Choi ,  Sang Deuk Lee

IPC: C09K3/00 ,  B01D53/50 ,  B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1481 ,  B01D2252/20431 ,  B01D2252/30 ,  B01D2257/302 ,  Y02A50/2349

Abstract: Disclosed is an sorbent for removing sulfur dioxide (SO2) contained in combustion flue gases or in the atmosphere by using a diamine-based ionic liquid or a diamine compound supported by a polymer resin. To be specific, the present invention relates to a method of using a tertiary diamine compound immobilized on a polymer surface as a SO2 sorbent and also relates to a novel sorbent for absorbing or adsorbing a sulfur dioxide hydrate (SO2.H2O) formed by a bond between SO2 and water.

Abstract translation: 公开了一种用于通过使用由聚合物树脂负载的二胺基离子液体或二胺化合物来除去燃烧烟道气或大气中所含的二氧化硫（SO 2）的吸附剂。 具体而言，本发明涉及使用固定在聚合物表面上的叔二胺化合物作为SO 2吸附剂的方法，还涉及用于吸收或吸附由键形成的二氧化硫水合物（SO 2·H 2 O）的新型吸附剂 在二氧化硫和水之间。

公开(公告)号：US11813567B1

公开(公告)日：2023-11-14

申请号：US17956206

申请日：2022-09-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dong Ki Lee ,  Hyun Joo Lee ,  Seojung Han ,  Heesung Eum ,  Seokhyeon Cheong

IPC: B01D53/32 ,  B01D53/56 ,  B01D53/75 ,  B01D53/78

CPC classification number: B01D53/56 ,  B01D53/326 ,  B01D53/75 ,  B01D53/78 ,  B01D2257/404

Abstract: Provided is a device for removing nitrogen oxide, the device including an inflow path for gas containing nitrogen oxide; and a reversible metal complex compound coming into contact with the gas containing nitrogen oxide which is introduced through the inflow path, wherein the reversible metal complex compound includes a central metal ion reacting and binding with nitrogen oxide; and a ligand coordinating with the central metal ion, wherein when the central metal ion is oxidized, the bound nitrogen oxide is separated, and the oxidized central metal ion is reduced to recombine with nitrogen oxide.

公开(公告)号：US10722875B2

公开(公告)日：2020-07-28

申请号：US16196549

申请日：2018-11-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo Lee ,  Jungho Jae ,  Hong Gon Kim ,  Deliana Dahnum ,  Shinhye Cho

IPC: B01J31/18 ,  C07F3/06 ,  C07C269/04 ,  B01J37/03 ,  B01J37/02

Abstract: Disclosed is a zinc-imidazole complex mixed catalyst. Also disclosed are a method for preparing the zinc-imidazole complex mixed catalyst and a method for producing a methyl N-phenyl carbamate in high yield with high selectivity in the presence of the catalyst. The zinc-imidazole complex mixed catalyst can be reused due to its high reaction stability. In addition, the use of the zinc-imidazole complex mixed catalyst leads to a marked improvement in the production yield of a methyl N-phenyl carbamate with high selectivity.

公开(公告)号：US09518035B2

公开(公告)日：2016-12-13

申请号：US15015890

申请日：2016-02-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo Lee ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Ji Sik Choi ,  Hyejeong Lee ,  Hye Jin Lee

IPC: C07D301/02 ,  C07D317/20

CPC classification number: C07D301/02 ,  C07D317/20

Abstract: A method for preparing glycidol using glycerol includes mixing glycerol with urea in the presence of at least one zinc-based catalyst selected from the group consisting of Zn(NO3)2, ZnCl2, ZnO and Zn(OAc)2 under a pressure of 0.5-10 kPa at a temperature of 100-170° C. to obtain glycerol carbonate; filtering the glycerol carbonate mixed with the zinc-based catalyst through an adsorbent including a polymer resin coordinated with amine groups to separate the zinc-based catalyst and glycerol carbonate from each other; and carrying out reaction of the glycerol carbonate separated from the zinc-based catalyst in the presence of an anion alkali metal salt catalyst that is Na, K, Rb, Cs or a mixture thereof containing at least one anion selected from the group consisting of Cl−, Br−, I−, NO3−, NO2− and acetate under a pressure of 0.13-6.67 kPa at a temperature of 140-250° C. to obtain glycidol.

Abstract translation: 使用甘油制备缩水甘油的方法包括在至少一种选自Zn（NO 3）2，ZnCl 2，ZnO和Zn（OAc）2）的锌基催化剂的存在下，在0.5- 在100-170℃的温度下10kPa，得到碳酸甘油酯; 通过包含与胺基配位的聚合物树脂的吸附剂过滤与锌基催化剂混合的甘油碳酸酯，以将锌基催化剂和甘油碳酸酯彼此分离; 在Na，K，Rb，Cs的阴离子碱金属盐催化剂或其含有至少一种选自Cl的阴离子的混合物的存在下进行从锌基催化剂分离的碳酸甘油酯的反应 - ，Br-，I-，NO 3 - ，NO 2 - 和乙酸盐，在温度为140-250℃的温度下，在0.13-6.67kPa的压力下进行，得到缩水甘油。

公开(公告)号：US09238216B2

公开(公告)日：2016-01-19

申请号：US14059007

申请日：2013-10-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chang Soo Kim ,  Kyesang Yoo ,  Byoung Sung Ahn ,  Hyun Joo Lee ,  Jeong Myeong Ha ,  Hong Gon Kim

IPC: B01J23/44 ,  C07C17/354 ,  C07C19/08 ,  C07C21/18 ,  B01J37/03 ,  B01J21/18 ,  B01J35/00 ,  B82Y30/00 ,  B01J31/02

CPC classification number: B01J23/44 ,  B01J21/18 ,  B01J31/0284 ,  B01J35/0013 ,  B01J35/0053 ,  B01J35/006 ,  B01J37/035 ,  B82Y30/00 ,  C07C17/354 ,  C07C19/08

Abstract: Provided is a palladium on carbon (Pd/C) catalyst obtained by using an ionic liquid, a method for preparing the same, and a method for hydrogenation of hydrofluorocarbon using the same. More particularly, palladium particles are supported on carbon particles by using an ionic liquid, and the resultant Pd/C catalyst is used for hydrogenation of hydrofluorocarbon. The catalyst includes palladium particles having a smaller particle size and a more uniform shape as compared to the existing Pd/C catalysts, and thus shows high catalytic activity.

Abstract translation: 提供通过使用离子液体获得的钯/碳（Pd / C）催化剂，其制备方法和使用其的氢氟烃的氢化方法。 更具体地，钯颗粒通过使用离子液体负载在碳颗粒上，所得的Pd / C催化剂用于氢氟烃的氢化。 该催化剂包括与现有Pd / C催化剂相比具有较小粒度和更均匀形状的钯颗粒，因此显示出高催化活性。

公开(公告)号：US08969600B2

公开(公告)日：2015-03-03

申请号：US13759692

申请日：2013-02-05

Applicant: Korea Institute of Science and Technology

Inventor： Hyun Joo Lee ,  Sang Deuk Lee ,  Byoung Sung Ahn ,  Chang Soo Kim ,  Ji Sik Choi

IPC: C07D301/02

CPC classification number: C07D301/02

Abstract: Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.

Abstract translation: 公开了通过碳酸甘油脱羧制备缩水甘油的方法。 在该方法中，为反应添加离子液体催化剂。 根据方法，可以高产率和选择性生产缩水甘油。 该方法能够以简单，简单和环保的方式生产缩水甘油。

公开(公告)号：US10335778B2

公开(公告)日：2019-07-02

申请号：US16043161

申请日：2018-07-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jungho Jae ,  Haryo Pandu Winoto ,  Jeong-Myeong Ha ,  Hyun Joo Lee ,  Dong Jin Suh ,  Byoung Sung Ahn

IPC: B01J29/70 ,  B01J27/19 ,  B01J37/02 ,  C07D307/33 ,  B01J21/06

Abstract: Disclosed are a heteropolyacid catalyst for producing gamma-valerolactone, which is supported on M-Beta zeolite (M=Sn, Ti, Zr or Hf), and a method for preparing the same and a method for manufacturing gamma-valerolactone using the catalyst. The catalyst has an effect of producing gamma-valerolactone from biomass-derived furfural at a high yield through a one-pot process.

公开(公告)号：US10138188B2

公开(公告)日：2018-11-27

申请号：US15653970

申请日：2017-07-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo Lee ,  Hyunah Choo ,  Seungmi Yeo ,  Tran Huyen Dang ,  Jieon Lee ,  Soon Hyeok Hong ,  Dabon Lee ,  Sang Deuk Lee

IPC: B01J27/02 ,  B01J31/22 ,  C07C29/12 ,  C07C29/48 ,  C07C31/04 ,  C07C303/24 ,  C07C305/06

Abstract: Disclosed is a novel catalyst for producing a methanol precursor. The use of the catalyst enables the production of a methanol precursor and methanol with high efficiency under low temperature and low pressure conditions. Also disclosed are a methanol precursor produced using the catalyst and methanol produced using the methanol precursor.