公开(公告)号：US20230381753A1

公开(公告)日：2023-11-30

申请号：US18021765

申请日：2021-12-08

申请人： LG CHEM, LTD.

发明人： Sung Jin Kim ,  Se Hyun Kim ,  Hyun Woo Park ,  Jung Ho Choi ,  Hyun Joon Kang

IPC分类号： B01J23/847 ,  B01J35/02 ,  B01J35/00 ,  C01B32/162

CPC分类号： B01J23/8472 ,  B01J35/026 ,  B01J35/0066 ,  C01B32/162

摘要： The present invention relates to a supported catalyst for producing carbon nanotubes which includes a carrier having a number average particle size (DMN) of 1.5 μm to 20 μm, and an active ingredient supported in the carrier, wherein the active ingredient which prevents the aggregation between particles and supports the particles may act as an active ingredient, so that it is possible to provide a supported catalyst which has excellent activity, and thus, which may improve the production yield.

公开(公告)号：US11472702B2

公开(公告)日：2022-10-18

申请号：US15774915

申请日：2017-10-25

申请人： LG CHEM, LTD.

发明人： Hee Jun Eom ,  Dong Chul Lee ,  Yeon Yi Kim ,  Jung Ho Choi

IPC分类号： C01B7/07 ,  B01D11/04

摘要： The present invention relates to a method of purifying waste hydrochloric acid, and more particularly, to a method of purifying waste hydrochloric acid which includes preparing an extraction solution by dissolving an extractant in an organic solvent (S1), extracting metallic components with the organic solvent by adding the extraction solution to the waste hydrochloric acid (S2), separating a waste hydrochloric acid layer and the organic solvent containing the metallic components (S3), and obtaining purified hydrochloric acid by recovering the separated (fractionated) waste hydrochloric acid layer (S4), wherein the extractant is used in an amount of 40 moles or more based on 1 mole of iron (Fe) included in the waste hydrochloric acid, and the waste hydrochloric acid and the extraction solution are mixed in a volume ratio of 1:0.1 to 1:1.

公开(公告)号：US11499239B2

公开(公告)日：2022-11-15

申请号：US16959584

申请日：2019-06-04

申请人： LG CHEM, LTD.

发明人： Hun Min Park ,  Jung Ho Choi ,  In Sung Hwang ,  Kwang Hyun Kim ,  Jung Up Bang ,  Dong Chul Lee ,  Gyo Hyun Hwang

IPC分类号： C25B11/04 ,  C25B11/075 ,  B05D1/04 ,  B05D3/00 ,  B05D3/02 ,  B05D3/10 ,  C25B1/34 ,  C25B11/051

摘要： Provided are an anode for electrolysis, which includes a metal base, and a catalyst layer disposed on at least one surface of the metal base, wherein the catalyst layer includes a composite metal oxide of ruthenium, iridium, titanium, and platinum, and a metal in the composite metal oxide does not include palladium, wherein, when the catalyst layer is equally divided into a plurality of pixels, a standard deviation of iridium compositions of the plurality of equally divided pixels is 0.40 or less, and a method of preparing the same.

公开(公告)号：US20220259062A1

公开(公告)日：2022-08-18

申请号：US17608357

申请日：2020-09-14

申请人： LG Chem, Ltd.

发明人： Jung Ho Choi ,  In Sung Hwang ,  Hun Min Park ,  Dong Chul Lee ,  Gyo Hyun Hwang ,  Kwang Hyun Kim ,  Jung Up Bang

IPC分类号： C01G19/02 ,  C25B1/34 ,  C25B11/077 ,  C23C22/48

摘要： The present invention provides a tin oxide forming composition and a tin oxide forming method using the tin oxide forming composition. The tin oxide forming composition of the present invention is easy to manufacture and is capable of forming a tin oxide with a high yield.