Invention Grant
- Patent Title: Process for the production of silicon dioxide particles
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Application No.: US15107769Application Date: 2015-02-23
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Publication No.: US10011496B2Publication Date: 2018-07-03
- Inventor: Bjorn Myhre , Magne Dastol
- Applicant: ELKEM AS
- Applicant Address: NO Oslo
- Assignee: ELKEM AS
- Current Assignee: ELKEM AS
- Current Assignee Address: NO Oslo
- Agency: Lucas & Mercanti, LLP
- Priority: NO20140237 20140224
- International Application: PCT/NO2015/050039 WO 20150223
- International Announcement: WO2015/126262 WO 20150827
- Main IPC: C01B33/18
- IPC: C01B33/18

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.
Public/Granted literature
- US20160318769A1 PROCESS FOR THE PRODUCTION OF SILICON DIOXIDE PARTICLES Public/Granted day:2016-11-03
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