公开(公告)号：US10011496B2

公开(公告)日：2018-07-03

申请号：US15107769

申请日：2015-02-23

Applicant: ELKEM AS

Inventor： Bjorn Myhre ,  Magne Dastol

IPC: C01B33/18

CPC classification number: C01B33/182 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2006/12

Abstract: The present invention relates to a process for producing spherical submicron particles of amorphous silicon dioxide, in which silicon dioxide and a reducing agent is injected into a reaction vessel of zirconium oxide in molten state, said zirconium oxide is serving as a heat reservoir, in which silicon dioxide reacts with the reducing agent producing a silicon-sub-oxide vapor, said silicon-sub-oxide vapor is oxidized into said spherical submicron silicon oxide particles.

公开(公告)号：US09738540B2

公开(公告)日：2017-08-22

申请号：US15107166

申请日：2015-02-09

Applicant: ELKEM AS

Inventor： Bjorn Myhre ,  Magne Dastol

IPC: C01F7/42 ,  C01F7/30

CPC classification number: C01F7/42 ,  C01F7/302 ,  C01F7/422 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/62

Abstract: The present invention relates to a method for the production of aluminum oxide particles of spherical morphology and with a particles size in the submicron range.