公开(公告)号：US20220410128A1

公开(公告)日：2022-12-29

申请号：US17781310

申请日：2020-11-25

Applicant: RHODIA OPERATIONS

Inventor： Julien Hernandez ,  Virginie Harle ,  Oguzhan Yaglidere ,  Andrew D. Allerton

IPC: B01J23/10 ,  B01J35/10 ,  B01J35/00 ,  B01J35/02 ,  B01J37/04 ,  B01J37/03 ,  B01J37/34 ,  B01J37/02 ,  B01J37/08 ,  B01J37/00

Abstract: The present invention relates to an alumina with a particular pore profile and good thermal stability. This alumina is also characterized in that it has a high bulk density. The alumina has, after calcining in air at 1100° C. for 5 hours: a pore volume in the range of pores with a size of between 5 nm and 100 nm which is between 0.50 and 0.75 mL/g, more particularly between 0.50 and 0.70 mL/g; and a pore volume in the range of pores with a size of between 100 nm and 1000 nm which is less than or equal to 0.20 mL/g, more particularly less than or equal to 0.15 mL/g, or even less than or equal to 0.10 mL/g.

公开(公告)号：US20220410124A1

公开(公告)日：2022-12-29

申请号：US17781282

申请日：2020-11-25

Applicant: RHODIA OPERATIONS

Inventor： Julien Hernandez ,  Virginie Harle ,  Oguzhan Yaglidere ,  Andrew D. Allerton

IPC: B01J21/04 ,  C01F7/441 ,  C01F7/34 ,  B01J23/10 ,  B01J37/04 ,  B01J37/03 ,  B01J37/08 ,  B01J35/10 ,  B01J35/00 ,  B01J35/02

Abstract: The present invention relates to an alumina with a particular pore profile and good thermal stability. This alumina is also characterized in that it has a high bulk density. The alumina has, after calcining in air at 1100° C. for 5 hours: a pore volume in the range of pores with a size of between 5 nm and 100 nm which is between 0.50 and 0.75 mL/g, more particularly between 0.50 and 0.70 mL/g; and a pore volume in the range of pores with a size of between 100 nm and 1000 nm which is less than or equal to 0.20 mL/g, more particularly less than or equal to 0.15 mL/g, or even less than or equal to 0.10 mL/g.