公开(公告)号：US20220177613A1

公开(公告)日：2022-06-09

申请号：US17413765

申请日：2019-11-28

Applicant: BOREALIS AG

Inventor： Pasi MATIKAINEN ,  Emilia HELISEVÄ ,  Jukka-Pekka PARJANEN

IPC: C08F4/643 ,  C08F10/00 ,  B01D21/26

Abstract: A process for washing a particulate substance comprising: (i) combining a particulate substance and a first washing medium in a first vessel to form a slurry and washing the particulate substance with said washing medium; (ii) transferring the slurry to a hydrocyclone; (iii) removing a first by-product stream depleted in particulate substance and a first product stream enriched in particulate substance from the hydrocyclone; (iv) transferring the first product stream to a second vessel and in the presence of a second washing medium forming a slurry and washing the particulate substance with said second washing medium e.g. by agitation thereof; (v) transferring the slurry to a hydrocyclone; (vi) removing a second by-product stream depleted in particulate substance and a second product stream enriched in particulate substance from the hydrocyclone.

公开(公告)号：US20160272735A1

公开(公告)日：2016-09-22

申请号：US15033395

申请日：2014-10-30

Applicant: BOREALIS AG

Inventor： Peter DENIFL ,  Timo LEINONEN ,  Pasi MATIKAINEN ,  Tom ELOVIRTA

IPC: C08F10/00

CPC classification number: C08F10/00 ,  B01J31/143 ,  B01J31/1608 ,  B01J31/2295 ,  B01J35/023 ,  G05B13/00 ,  C08F4/6546

Abstract: The present invention is directed to a process for producing a solid olefin polymerization catalyst component from an emulsion wherein the particle size of the solid catalyst or the droplet size of the emulsion is controlled. The actual size of the droplets or the solid catalyst particles is measured, or alternatively, both are measured. Then a difference between the actual size and the set point is calculated and the process is controlled based on the difference.

Abstract translation: 本发明涉及由乳液制备固体烯烃聚合催化剂组分的方法，其中控制固体催化剂的粒度或乳液的液滴尺寸。 测量液滴或固体催化剂颗粒的实际尺寸，或者替代地，测量两者。 然后，计算实际尺寸和设定点之间的差异，并根据差异来控制过程。