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.

Date of Patent:
Apr. 25, 2023

Filed:

Oct. 09, 2018
Applicant:

Saint-gobain Centre DE Recherches ET D'etudes Europeen, Courbevoie, FR;

Inventors:

Isabelle Cabodi, Cavaillon, FR;

Pierrick Vespa, Aix-en-Provence, FR;

Laurent Battu, Sorgues, FR;

Olivier Citti, Cavaillon, FR;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/48 (2006.01); C04B 35/657 (2006.01); C04B 35/626 (2006.01);
U.S. Cl.
CPC ...
C04B 35/481 (2013.01); C04B 35/6265 (2013.01); C04B 35/657 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3248 (2013.01); C04B 2235/422 (2013.01); C04B 2235/602 (2013.01);
Abstract

A process for the manufacture of a refractory block including more than 80% zirconia, in percentage by weight based on the oxides. The process includes the following successive stages: melting, under reducing conditions, of a charge including more than 50% zircon, in percentage by weight, such as to reduce the zircon and obtain a molten material, application of oxidizing conditions to the molten material, casting of the molten material, and cooling until at least partial solidification of the molten material in the form of a block. Also, the process can include heat treatment of the block.


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