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公开(公告)号：EP3581552A1
公开(公告)日：2019-12-18
申请号：EP18876064.9
申请日：2018-11-12
申请人： LG Chem, Ltd.
发明人： CHOI, Seung Won , JANG, Sung Keun , JOO, Eun Jung , LEE, Young Ho
IPC分类号： C07C29/80 , C07C31/08 , C01B33/158
摘要： The present invention relates to a method for purifying a waste solvent. The present invention provides a method for purifying waster solvent by removing carbon dioxide contained in a waste solvent derived from supercritical waste liquid generated after supercritical drying by a decompression process, and removing ammonia by a multi-stage distillation process to obtain a solvent of high purity, which can be reused in producing silica aerogel or a silica aerogel blanket.
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公开(公告)号：EP3235554A1
公开(公告)日：2017-10-25
申请号：EP15870214.2
申请日：2015-11-25
申请人： LG Chem, Ltd.
CPC分类号： B01D19/0068 , B01D19/00 , B01D19/001 , B01D19/0026 , B01D19/0057 , B01D45/12
摘要： The present invention relates to a gas/liquid separator. According to an aspect of the present invention, provided is a gas/liquid separator, including a housing including a first supply part and a second supply part; a rotary shaft rotatably provided to the housing; a drive unit configured to rotate the rotary shaft; fixed cones disposed in an interior of the housing and each including a tilted area, diameters of which are decreased in a direction from the first supply part to the second supply part, a first through-hole, which passes the rotary shaft, and at least one second through-hole, through which a second fluid introduced via the second supply part passes; and rotary cones disposed in an interior of the housing so as to be spaced apart from the fixed cones and installed at the rotary shaft so as to rotate about the rotary shaft.
摘要翻译： 气液分离器技术领域本发明涉及一种气液分离器。 根据本发明的一个方面，提供了一种气/液分离器，包括：壳体，其包括第一供应部分和第二供应部分; 可旋转地设置在壳体上的旋转轴; 驱动单元，其构造成旋转所述旋转轴; 固定锥体，其设置在所述壳体的内部并且各自包括倾斜区域，所述倾斜区域的直径在从所述第一供给部分到所述第二供给部分的方向上减小;第一通孔，其穿过所述旋转轴，并且至少 一个第二通孔，通过第二供应部分引入的第二流体通过该第二通孔; 以及设置在壳体内部的旋转锥体，以与固定锥体间隔开并安装在旋转轴处以便绕旋转轴旋转。
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公开(公告)号：EP4019105A1
公开(公告)日：2022-06-29
申请号：EP21867918.1
申请日：2021-08-20
申请人： LG CHEM, LTD.
发明人： KIM, Seong Hun , HEO, Chang Hoe , JANG, Sung Keun , JOO, Eun Jung
摘要： The present invention relates to a stripping device and a stripping method, and more particularly, to a stripping device including: a distillation column of which at least a part or the entirety of a lower portion is perforated; a stripping vessel integrally connected to the lower portion of the distillation column; and one or more spray nozzles provided at an upper portion of the stripping vessel, and a stripping method using the same.
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公开(公告)号：EP3586936A1
公开(公告)日：2020-01-01
申请号：EP18857167.3
申请日：2018-08-30
申请人： LG Chem, Ltd.
IPC分类号： B01D11/04
摘要： The present invention relates to a separation method and a separation apparatus of a solvent extracted by supercritical extraction, wherein two or more flash vessels are arranged in series to decrease the pressure of the solvent stepwise, thereby minimizing the amount of the solvent lost by vaporization to obtain an effect of increasing the solvent recovery rate.
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公开(公告)号：EP3321292A1
公开(公告)日：2018-05-16
申请号：EP17823008.2
申请日：2017-08-23
申请人： LG Chem, Ltd.
IPC分类号： C08F6/00 , C08F210/02 , C08F2/00 , C08J11/02
CPC分类号： C08F6/001 , C08J11/02 , C08L23/0815 , C08L23/0853
摘要： The present invention relates to a method for recovering ethylene and a vinyl-comonomer that is capable of improving the rate of recovery of unreacted monomers remaining after polymerization of ethylene and a vinyl-based comonomer and increasing process efficiency through the reduction of costs.
Specifically, the method for recovering ethylene and a vinyl-comonomer includes: a step of polymerizing ethylene and a vinyl-based comonomer at a pressure of 1500 bar or more; a step of depressurizing the product obtained in the polymerization step including an ethylene-vinyl-based comonomer polymer, ethylene, and a vinyl-based comonomer to 0.1 bar to 5 bar; a step of adding ethylene to the product obtained in the polymerization step under the pressure of 0.1 bar to 5 bar; and a step of separating ethylene and a vinyl-based comonomer from the product obtained in the polymerization step to which the ethylene is added.摘要翻译： 本发明涉及乙烯和乙烯基共聚单体的回收方法，其能够提高乙烯和乙烯基共聚单体聚合后剩余的未反应单体的回收率，并通过降低成本来提高工艺效率。 具体而言，回收乙烯和乙烯基共聚单体的方法包括：在1500巴或更高的压力下聚合乙烯和乙烯基共聚单体的步骤; 将包括乙烯 - 乙烯基共聚单体聚合物，乙烯和乙烯基共聚单体的聚合步骤中获得的产物减压至0.1巴至5巴; 在0.1巴至5巴的压力下向聚合步骤中获得的产物中加入乙烯的步骤; 以及从添加了乙烯的聚合工序中得到的产物中分离乙烯和乙烯基系共聚单体的工序。
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