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:
Mar. 16, 1976
Filed:
May. 20, 1974
Applicant:
Inventors:
Christian Gatellier, Montigny-les-Metz, FR;
Michel Olette, Moulins-les-Metz, FR;
Assignee:
Institut de Recherches de la Siderurgie Francaise, Saint-Germain-en-Laye, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
204140 ; 2041 / ;
Abstract
Process for decreasing the sulfur content of liquid metal using high temperature comprising passing a direct current by means of two electrodes through a solid electrolyte constituting a refractory wall of oxide having anionic conductivity through the oxygen (O.sup.-.sup.-) ions and also cationic conductivity through ions which are capable of reacting with the sulfur, wherein the metal to be purified forms the negative electrode. The process is particularly adapted to desulfurizing iron and ferrous alloys when present in the liquid state.