公开(公告)号：US12025554B2

公开(公告)日：2024-07-02

申请号：US16631706

申请日：2019-01-16

申请人： LG Chem, Ltd.

发明人： Sumin Na ,  Jieun Kim ,  Sunah Shin ,  Min Hwan Jung

IPC分类号： G01N21/3504 ,  C01B33/12 ,  G01N1/40 ,  G01N1/44 ,  G01N33/00

CPC分类号： G01N21/3504 ,  C01B33/12 ,  G01N1/44 ,  G01N33/005 ,  C01P2004/61 ,  C01P2006/12 ,  G01N2001/4027

摘要： A method for quantitative analysis of hydrogen gas generated due to the decomposition of Si—OH (silanol) in porous silica, which is a support of a metallocene catalyst is provided. The analysis enables the measurement of the content of hydrogen present in trace amounts in silica by employing an inert gas fusion-infrared absorption (IGFIA) method under specific pressure and temperature conditions.

公开(公告)号：US20200166452A1

公开(公告)日：2020-05-28

申请号：US16631706

申请日：2019-01-16

申请人： LG Chem, Ltd.

发明人： Sumin Na ,  Jieun Kim ,  Sunah Shin ,  Min Hwan Jung

IPC分类号： G01N21/3504 ,  C01B33/12 ,  G01N33/00

摘要： A method for quantitative analysis of hydrogen gas generated due to the decomposition of Si—OH (silanol) in porous silica, which is a support of a metallocene catalyst is provided. The analysis enables the measurement of the content of hydrogen present in trace amounts in silica by employing an inert gas fusion-infrared absorption (IGFIA) method under specific pressure and temperature conditions.