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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.:

US 10465263 B1

PDFFull Text
Date of Patent:
Nov. 05, 2019

Filed:

Jun. 30, 2014

System and method for adding molten lithium to a molten aluminium melt

Applicant:

Aleris Rolled Products Germany Gmbh, Koblenz, DE;

Inventors:

Fred Brandt, Neuwied, DE;

Philippe Meyer, Koblenz, DE;

Assignee:

ALERIS ROLLED PRODUCTS GERMANY GMBH, Koblenz, DE;

Attorney:

Vorys, Sater, Seymour and Pease LLP

Primary Examiner:

Scott R Kastler

Assistant Examiner:

Michael Aboagye

Int. Cl.
CPC ...
C22B 21/06 (2006.01); F27B 14/08 (2006.01); F27D 3/14 (2006.01); C22B 21/00 (2006.01); F27D 7/06 (2006.01); C22B 9/00 (2006.01); C22B 9/10 (2006.01); F27B 14/04 (2006.01); F27D 7/02 (2006.01); C22B 21/04 (2006.01); C22C 1/02 (2006.01); B22D 1/00 (2006.01); F27B 14/06 (2006.01);
U.S. Cl.
CPC ...
C22B 21/06 (2013.01); B22D 1/00 (2013.01); B22D 1/002 (2013.01); C22B 9/003 (2013.01); C22B 9/006 (2013.01); C22B 9/10 (2013.01); C22B 21/0084 (2013.01); C22B 21/04 (2013.01); C22B 21/064 (2013.01); C22C 1/026 (2013.01); F27B 14/061 (2013.01); F27B 14/0806 (2013.01); F27D 3/14 (2013.01); F27D 7/02 (2013.01); F27D 7/06 (2013.01); F27B 2014/0818 (2013.01); F27D 2007/023 (2013.01); F27D 2007/063 (2013.01);
Abstract

A system for adding molten lithium and inert gas in a molten aluminium or aluminium alloy melt including, a crucible defining a chamber for melting and storing molten metal, in particular molten lithium; the crucible having a sealed lid; an inert gas delivery system for maintaining chamber overpressure using inert gas; a conduit for withdrawing a portion of the molten metal from the crucible. The conduit arranged with respect to the crucible or the sealed lid so the conduit inlet can be moved below and above the molten metal surface level and arranged for feeding molten metal from the crucible to a separate holding furnace with the help of overpressure when the conduit inlet is below the molten metal surface level and arranged for feeding inert gas from the crucible to the separate holding furnace when the conduit inlet is above the molten metal surface level.

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