The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2018
Filed:
Feb. 23, 2015
Applicant:
Elkem As, Oslo, NO;
Inventors:
Bjorn Myhre, Kristiansand S, NO;
Magne Dastol, Kristiansand, NO;
Assignee:
ELKEM AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/18 (2006.01);
U.S. Cl.
CPC ...
C01B 33/182 (2013.01); C01P 2002/02 (2013.01); C01P 2004/32 (2013.01); C01P 2006/12 (2013.01);
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.