公开(公告)号：US20180208474A1

公开(公告)日：2018-07-26

申请号：US15743643

申请日：2016-12-08

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158

CPC classification number: C01B33/158 ,  B01J31/02 ,  C01B33/1585 ,  C01F5/02 ,  C01F11/02 ,  C01P2006/11 ,  C01P2006/12

Abstract: The present invention relates to a method of preparing a metal oxide-silica composite aerogel containing a high ratio of a metal oxide and a metal oxide-silica composite aerogel prepared thereby. The method of preparing a metal oxide-silica composite aerogel according to the present invention may adjust a metal oxide ratio to a high level while easily forming a uniform network structure by performing a primary reaction under an acidic condition and a secondary reaction under a basic condition, and thus, since the prepared metal oxide-silica composite aerogel may contain a high ratio of the metal oxide, mechanical properties may not only be excellent, but high specific surface area and low tap density characteristics may also be exhibited.

公开(公告)号：US20180194634A1

公开(公告)日：2018-07-12

申请号：US15743631

申请日：2016-12-13

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong KANG, ,  Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  C01F11/02 ,  C01F5/02 ,  C01B33/159 ,  B01J13/00

Abstract: The present invention relates to a method of preparing a metal oxide-silica composite aerogel having a uniform particle size and excellent pore characteristics and a metal oxide-silica composite aerogel prepared thereby. The preparation method according to the present invention may not only have good economic efficiency because production costs are relatively reduced in comparison to the related art, but may also effectively prevent the collapse of a pore structure by suppressing a shrinkage phenomenon during drying. Thus, a metal oxide-silica composite aerogel prepared by the above preparation method may have higher specific surface area and better pore characteristics than a conventional metal oxide-silica composite aerogel prepared by oven drying while having low tap density.

公开(公告)号：US20180099873A1

公开(公告)日：2018-04-12

申请号：US15565017

申请日：2017-01-17

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: C01B33/152 ,  B65H37/00 ,  C01B33/158 ,  C01B33/159

CPC classification number: C01B33/152 ,  B29B15/122 ,  B29C39/00 ,  B65H37/00 ,  C01B33/141 ,  C01B33/158 ,  C01B33/1585 ,  C01B33/159 ,  F16L59/026 ,  F16L59/06

Abstract: The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing an aerogel sheet includes: a step (a) of preparing silica sol; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica sol, which is prepared in the step (a), to a surface of a blanket to impregnate the silica sol; and a step (d) of injecting the gelling catalyst, which is prepared in the step (b), to the surface of the blanket, into which the silica sol is impregnated, to gelate the silica sol.

公开(公告)号：US20180086587A1

公开(公告)日：2018-03-29

申请号：US15564964

申请日：2016-10-31

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: B65H35/06 ,  B65H37/00 ,  C01B33/141 ,  C01B33/152

CPC classification number: B65H35/06 ,  B29B15/122 ,  B29C39/00 ,  B29C41/28 ,  B29C41/30 ,  B29K2105/0061 ,  B65H37/00 ,  C01B33/141 ,  C01B33/152 ,  C01B33/158 ,  C01B33/1585

Abstract: The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing the aerogel sheet includes: a step (a) of preparing silica sol; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica sol, which is prepared in the step (a), to a surface of a blanket to impregnate the silica sol; a step (d) of injecting the gelling catalyst, which is prepared in step (b), to the surface of the blanket, into which the silica sol is impregnated, to gelate the silica sol; and a step (e) of cutting the blanket, in which the silica sol is gelated, to obtain a sheet in which the silica sol is gelated.

公开(公告)号：US20230124388A1

公开(公告)日：2023-04-20

申请号：US18082407

申请日：2022-12-15

Applicant: LG CHEM, LTD.

Inventor： Kyung Seok MIN ,  Je Kyun LEE

IPC: C01B33/152 ,  B05D1/18 ,  C01B33/146

Abstract: The present invention relates to a method for producing a silica aerogel blanket and an apparatus for producing the same, which are capable of easily controlling the physical properties of a silica aerogel blanket by separately injecting silica sol and a gelation catalyst to control gelation time, improving aerogel pore structure to be uniform and improving thermal insulation performance by sufficiently and uniformly impregnating the silica and the gelation catalyst into a blanket, reducing the loss of silica sol and gelation catalyst by allowing the silica sol and the gelation catalyst to pass on an ascending slope before gelation to remove any excessive silica sol and gelation catalyst exceeding an appropriate impregnation amount, and providing a silica aerogel blanket having less process trouble, and less dust.

公开(公告)号：US20200270137A1

公开(公告)日：2020-08-27

申请号：US16754204

申请日：2018-08-21

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong KANG ,  Je Kyun LEE

IPC: C01B33/158 ,  C01B33/145 ,  C01B33/155 ,  C02F1/70

Abstract: Provided is a method for recycling supercritical waste liquid generated during a process of producing a silica aerogel blanket, and a method for producing a silica aerogel blanket reusing supercritical waste liquid recycled thereby. The method for recycling supercritical waste liquid and the method for producing a silica aerogel blanket reduce the production costs and prevent the deterioration in thermal insulation performance of a silica aerogel blanket by adding a metal salt to the supercritical waste liquid by the recycling method.

公开(公告)号：US20190276322A1

公开(公告)日：2019-09-12

申请号：US16304637

申请日：2018-03-22

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: C01B33/158

Abstract: The present invention relates to a method for producing a silica aerogel blanket, the method comprising recovering a supercritical waste liquid generated after performing a step of supercritical drying, neutralizing the recovered supercritical waste liquid by adding an acid thereto for recycling, and reusing the recycled supercritical waste liquid, and a silica aerogel blanket produced thereby.

公开(公告)号：US20190062167A1

公开(公告)日：2019-02-28

申请号：US16067066

申请日：2017-09-12

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Je Kyun LEE

IPC: C01B33/149 ,  C01B33/158 ,  C01B33/159 ,  F16L59/02 ,  F16L59/147 ,  B01J27/04 ,  B01J27/10 ,  B01J27/24 ,  B01J13/00

Abstract: The present invention relates to a silica aerogel blanket for ultra-high temperature, a method for producing the same, and a method for constructing the same. More specifically, the present invention provides a method for producing a silica aerogel blanket, the method capable of suppressing the generation of a bad odor during construction by including a step of heat treatment after producing a hydrophobic silica aerogel blanket so as to remove a volatile organic compound (VOC), a silica aerogel blanket produced thereby, and a method for constructing a silica aerogel blanket for ultra-high temperature, the method capable of suppressing the generation of a bad odor during the construction of the silica aerogel blanket produced by the above-mentioned production method on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.

公开(公告)号：US20190010060A1

公开(公告)日：2019-01-10

申请号：US15766318

申请日：2017-10-10

Applicant: LG CHEM, LTD.

Inventor： Kyoung Shil OH ,  Je Kyun LEE

IPC: C01B33/158 ,  B01J27/24 ,  B01J23/04 ,  B01J31/02 ,  F16L59/02 ,  F16L59/14

CPC classification number: C01B33/1585 ,  B01J23/04 ,  B01J27/24 ,  B01J31/0237 ,  B01J31/0244 ,  C01B33/143 ,  C01B33/154 ,  C01B33/158 ,  C01P2006/32 ,  F16L59/02 ,  F16L59/028 ,  F16L59/029 ,  F16L59/14

Abstract: The present invention relates to a hydrophilic silica aerogel blanket for ultra-high temperature insulation, a production method thereof, and a construction method thereof. More specifically, the present invention provides a production method a hydrophilic silica aerogel blanket, the method capable of strengthening the structure of a silica gel by adding a basic catalyst in an aging step, reducing processing time and cost by omitting a surface modification step, thereby reducing manufacturing cost, and suppressing the generation of a bad odor during construction by fundamentally blocking a volatile organic compound (VOC), a hydrophilic silica aerogel blanket produced thereby, and a construction method of a hydrophilic silica aerogel blanket, the method capable of suppressing the generation of a bad odor when constructing the hydrophilic aerogel blanket on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.

公开(公告)号：US20180237596A1

公开(公告)日：2018-08-23

申请号：US15755513

申请日：2017-03-07

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Dong Kwon LEE ,  Jong Ku LEE ,  Je Kyun LEE

IPC: C08J3/12 ,  C08J3/075 ,  C01B33/158 ,  B02C19/06 ,  B02C18/18

CPC classification number: C08J3/12 ,  B01J19/00 ,  B02C18/18 ,  B02C19/06 ,  C01B33/158 ,  C01B33/1585 ,  C08J3/075 ,  C08J2383/02 ,  C08J2383/04

Abstract: The system for preparing silica aerogel according to the present invention comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a drying part drying the silica wet gel to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part, wherein the system further comprises a pulverizing part that pulverizes the raw material from the row material supply part to the mixing part.