Title: Methods of deoxygenating metals having oxygen dissolved therein in a solid solution

Abstract

A method of deoxygenating metal can include forming a mixture of: a metal having oxygen dissolved therein in a solid solution, at least one of metallic magnesium and magnesium hydride, and a magnesium-containing salt. The mixture can be heated at a deoxygenation temperature for a period of time under a hydrogen-containing atmosphere to form a deoxygenated metal. The deoxygenated metal can then be cooled. The deoxygenated metal can optionally be subjected to leaching to remove by-products, followed by washing and drying to produce a final deoxygenated metal.

Inventors:

Zhang, Ying; Fang, Zhigang Zak; Sun, Pei; Xia, Yang; Zhou, Chengshang

Issue Date:

2017-06-06

Research Org.:

University of Utah Research Foundation, Salt Lake City, UT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1361626

Patent Number(s):

9669464

Application Number:

15/216,549

Assignee:

University of Utah Research Foundation

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2201/00 - Treatment under specific atmosphere
B22F2201/10 - Inert gases
B22F2202/13 - Use of plasma
B22F2998/10 - Processes characterised by the sequence of their steps
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F9/22 - using gaseous reductors

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

C22B34/1268 - {using alkali or alkaline-earth metals or amalgams}
C22B34/1295 - {Refining, melting, remelting, working up of titanium}
C22B9/14 - Refining in the solid state

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C14/00 - Alloys based on titanium

C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS

C22F1/183 - {of titanium or alloys based thereon}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P10/25 - by increasing the energy efficiency of the process

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DOE Contract Number:  

AR0000420

Resource Type:

Patent

Resource Relation:

Patent File Date: 2016 Jul 21

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY