ATE452214T1 - CLEANING METAL PARTICLES BY HEAT TREATMENT - Google Patents

CLEANING METAL PARTICLES BY HEAT TREATMENT

Info

Publication number
ATE452214T1
ATE452214T1 AT03753690T AT03753690T ATE452214T1 AT E452214 T1 ATE452214 T1 AT E452214T1 AT 03753690 T AT03753690 T AT 03753690T AT 03753690 T AT03753690 T AT 03753690T AT E452214 T1 ATE452214 T1 AT E452214T1
Authority
AT
Austria
Prior art keywords
particles
metal
purified
electrochemical reduction
heat treatment
Prior art date
Application number
AT03753690T
Other languages
German (de)
Inventor
Charles Malcolm Ward-Close
Alastair Bryan Godfrey
Paul Stephen Goodwin
Original Assignee
Metalysis Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0222219A external-priority patent/GB0222219D0/en
Priority claimed from GB0222348A external-priority patent/GB2393450A/en
Priority claimed from GB0222358A external-priority patent/GB2393451A/en
Application filed by Metalysis Ltd filed Critical Metalysis Ltd
Application granted granted Critical
Publication of ATE452214T1 publication Critical patent/ATE452214T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1295—Refining, melting, remelting, working up of titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/129—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds by dissociation, e.g. thermic dissociation of titanium tetraiodide, or by electrolysis or with the use of an electric arc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/14—Refining in the solid state

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

A method for purifying metal M1 particles manufactured by an electrochemical reduction process, the method comprising the steps of introducing the metal M1 particles into a heat source (13) at a temperature substantially equal to or higher than the melting point of M1 so as to cause vaporisation of some or substantially all of the contaminating impurities present, removing the vaporised impurities from the vicinity of the particles, and cooling the purified metal M1 particles. The purified particles can be used directly in lower temperature powder metallurgy processes and have a fully dense spherical particle morphology, imparting good flowability. The purification process can also be incorporated as an integral stage of sheet or stock production processes based on particle feedstocks that have been produced by electrochemical reduction.
AT03753690T 2002-09-25 2003-09-24 CLEANING METAL PARTICLES BY HEAT TREATMENT ATE452214T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0222219A GB0222219D0 (en) 2002-09-25 2002-09-25 Purification process
GB0222348A GB2393450A (en) 2002-09-26 2002-09-26 Method of Manufacture of Metal Alloy Stock
GB0222358A GB2393451A (en) 2002-09-26 2002-09-26 A Method of Manufacture of Metal Alloy Sheet
PCT/GB2003/004093 WO2004029332A2 (en) 2002-09-25 2003-09-24 Purification of electrochemically deoxidised refractory metal particles by heat processing

Publications (1)

Publication Number Publication Date
ATE452214T1 true ATE452214T1 (en) 2010-01-15

Family

ID=32045677

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03753690T ATE452214T1 (en) 2002-09-25 2003-09-24 CLEANING METAL PARTICLES BY HEAT TREATMENT

Country Status (6)

Country Link
US (2) US20060130610A1 (en)
EP (1) EP1543172B1 (en)
AT (1) ATE452214T1 (en)
AU (1) AU2003271852B2 (en)
DE (1) DE60330577D1 (en)
WO (1) WO2004029332A2 (en)

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WO2005021148A1 (en) * 2003-08-28 2005-03-10 Tekna Plasma Systems Inc. Process for the synthesis, separation and purification of powder materials
EP1671711A1 (en) * 2003-10-09 2006-06-21 Ebara Corporation Method of purifying matter contaminated by heavy metal and apparatus therefor
WO2015175726A1 (en) 2014-05-13 2015-11-19 University Of Utah Research Foundation Production of substantially spherical metal powers
WO2016090052A1 (en) 2014-12-02 2016-06-09 University Of Utah Research Foundation Molten salt de-oxygenation of metal powders
CN107208978B (en) * 2015-10-22 2019-08-23 株式会社Posco Raw material charging appliance, chill roll and the method for preventing adherency ore from generating
ES2964898T3 (en) 2015-12-16 2024-04-10 6K Inc Spheroidal dehydrogenated metals and metal alloy particles
US11077497B2 (en) 2017-06-07 2021-08-03 Global Titanium Inc. Deoxidation of metal powders
CN114007985A (en) 2019-04-30 2022-02-01 6K有限公司 Lithium Lanthanum Zirconium Oxide (LLZO) powder
CA3134573A1 (en) 2019-04-30 2020-11-05 Sunil Bhalchandra BADWE Mechanically alloyed powder feedstock
WO2021118762A1 (en) 2019-11-18 2021-06-17 6K Inc. Unique feedstocks for spherical powders and methods of manufacturing
US11590568B2 (en) 2019-12-19 2023-02-28 6K Inc. Process for producing spheroidized powder from feedstock materials
US11181325B2 (en) * 2019-12-23 2021-11-23 Valgroup S.A. System for the production of molten salt used as a heat transfer medium for a pyrolysis system
KR20230029836A (en) 2020-06-25 2023-03-03 6케이 인크. Microcomposite alloy structure
KR20230073182A (en) 2020-09-24 2023-05-25 6케이 인크. Systems, devices and methods for initiating plasma
JP2023548325A (en) 2020-10-30 2023-11-16 シックスケー インコーポレイテッド System and method for the synthesis of spheroidized metal powders
WO2022192394A1 (en) * 2021-03-10 2022-09-15 The Regents Of The University Of California Gas-phase production of aligned metal nanoparticles using external magnetic fields
EP4313449A1 (en) 2021-03-31 2024-02-07 6K Inc. Systems and methods for additive manufacturing of metal nitride ceramics
US20220324022A1 (en) * 2021-03-31 2022-10-13 6K Inc. Microwave plasma processing of spheroidized copper or other metallic powders
CN113999981A (en) * 2021-11-02 2022-02-01 广东先导微电子科技有限公司 Impurity removal method for high-purity metal through vacuum sublimation
US12040162B2 (en) 2022-06-09 2024-07-16 6K Inc. Plasma apparatus and methods for processing feed material utilizing an upstream swirl module and composite gas flows
US12094688B2 (en) 2022-08-25 2024-09-17 6K Inc. Plasma apparatus and methods for processing feed material utilizing a powder ingress preventor (PIP)
CN115846649B (en) * 2022-12-20 2024-08-16 江苏宇钛新材料有限公司 Preparation method of low-melting-point spherical metal powder

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US2876094A (en) * 1956-02-17 1959-03-03 Du Pont Production of refractory metals
US3343944A (en) * 1963-09-06 1967-09-26 Pechiney Prod Chimiques Sa Electrolytic beryllium granules and method for manufacturing same
FR1445684A (en) * 1965-06-03 1966-07-15 Commissariat Energie Atomique Device for continuous casting of refractory materials
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GB2359564B (en) * 2000-02-22 2004-09-29 Secr Defence Improvements in the electrolytic reduction of metal oxides

Also Published As

Publication number Publication date
WO2004029332A3 (en) 2004-10-21
AU2003271852B2 (en) 2010-03-11
EP1543172A2 (en) 2005-06-22
US20120230860A1 (en) 2012-09-13
WO2004029332A2 (en) 2004-04-08
DE60330577D1 (en) 2010-01-28
EP1543172B1 (en) 2009-12-16
AU2003271852A1 (en) 2004-04-19
US20060130610A1 (en) 2006-06-22

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