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GB1367069A - Removal of non-metallic constituents from liquid metal - Google Patents

Removal of non-metallic constituents from liquid metal

Info

Publication number
GB1367069A
GB1367069A GB50212/70*2A GB5021270A GB1367069A GB 1367069 A GB1367069 A GB 1367069A GB 5021270 A GB5021270 A GB 5021270A GB 1367069 A GB1367069 A GB 1367069A
Authority
GB
United Kingdom
Prior art keywords
metal
chamber
metals
vessel
flux
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB50212/70*2A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Aluminum Co Ltd
Original Assignee
British Aluminum Co 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
Application filed by British Aluminum Co Ltd filed Critical British Aluminum Co Ltd
Priority to GB50212/70*2A priority Critical patent/GB1367069A/en
Priority to CA125,325A priority patent/CA959655A/en
Publication of GB1367069A publication Critical patent/GB1367069A/en
Expired legal-status Critical Current

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
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/066—Treatment of circulating aluminium, e.g. by filtration
    • 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
    • C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
    • C22B9/023—By filtering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1367069 Refining metals BRITISH ALUMINIUM CO Ltd 17 Jan 1972 [22 Oct 1970] 50212/70 Heading C7D A process for removing non-metallic constituents, e.g. gas and other inclusions, from metals comprises causing a stream of liquid metal to flow continuously through a containing vessel at a rate such that the residence time of the metal in the vessel is at least 0À5 minutes, while agitating the metal in the vessel and maintaining on the surface of the metal a salt flux in an amount at least equal to 1 lb. per 100 sq. ins. of surface area. The metal is preferably aluminium or magnesium and the flux consists of chlorides or and/or fluorides of alkali metals and/or alkaline earth metals. In apparatus as shown in Fig. 1, molten metal flows from launder L 1 into chamber A of crucible 1 which also includes a second chamber B, the chambers being separated by baffle 2. The metal in chamber A is agitated by stirrer 6, mounted at an angle so that the metal tends to circulate in a plane inclined to the horizontal, and preferably rotating at 25 to 150 r.p.m.; the metal then passes through a bed of refractory granules 7 which extend at least to the bottom of baffle 2, and practically fill chamber B, before passing out along launder 3. The flux layer 5 is maintained on the surface of the metal in chamber A.
GB50212/70*2A 1970-10-22 1970-10-22 Removal of non-metallic constituents from liquid metal Expired GB1367069A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB50212/70*2A GB1367069A (en) 1970-10-22 1970-10-22 Removal of non-metallic constituents from liquid metal
CA125,325A CA959655A (en) 1970-10-22 1971-10-18 Treatment of liquid metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50212/70*2A GB1367069A (en) 1970-10-22 1970-10-22 Removal of non-metallic constituents from liquid metal

Publications (1)

Publication Number Publication Date
GB1367069A true GB1367069A (en) 1974-09-18

Family

ID=10455089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50212/70*2A Expired GB1367069A (en) 1970-10-22 1970-10-22 Removal of non-metallic constituents from liquid metal

Country Status (2)

Country Link
CA (1) CA959655A (en)
GB (1) GB1367069A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000195A (en) * 1977-06-02 1979-01-04 Alusuisse Process for the continuous production of metal alloys
US4295884A (en) * 1978-07-31 1981-10-20 Societe De Vente De L'aluminium Pechiney Process for treating a molten metal or alloy using liquid and solid flux
FR2506333A1 (en) * 1981-05-19 1982-11-26 Alcan Int Ltd PROCESS FOR ELIMINATING ALKALINE AND ALKALINE EARTH METALS CONTAINED IN IMPURITIES IN MOLTEN ALUMINUM AND APPARATUS FOR ITS IMPLEMENTATION
EP0108178A1 (en) * 1982-11-09 1984-05-16 Alcan International Limited Removal of alkali metals and alkaline earth metals from molten aluminium
US4457496A (en) * 1980-01-14 1984-07-03 Servimetal Filtration block for liquid metals and alloys, with a mechanical and physical-chemical effect
US4470846A (en) * 1981-05-19 1984-09-11 Alcan International Limited Removal of alkali metals and alkaline earth metals from molten aluminum
EP0134705A1 (en) * 1983-08-16 1985-03-20 Alcan International Limited Method of filtering molten metal
US4634105A (en) * 1984-11-29 1987-01-06 Foseco International Limited Rotary device for treating molten metal
WO1994012301A1 (en) * 1992-11-23 1994-06-09 Alcan International Limited Filtration of molten material
FR2780981A1 (en) * 1998-07-09 2000-01-14 Membratec Sa METHOD OF ONLINE FILTRATION OF A LIQUID METAL AND DEVICE FOR CARRYING OUT SAID METHOD
FR2787469A1 (en) * 1998-12-21 2000-06-23 Pechiney Aluminium Improved filtering of a molten metal on a bed of refractory particulate material with reduced retention times for equal or better filtering quality
CN100389214C (en) * 2003-12-16 2008-05-21 兰州理工大学 Apparatus and method for removing non-metallic oxidized impurity in non-ferrous alloy liquid
EP1939311A3 (en) * 2006-12-29 2009-03-25 Hoesch Metallurgie GmbH Molten metal bath flow agent, use thereof and method for treating a molten metal bath and method for producing a molten metal bath flow agent
WO2013013321A1 (en) * 2011-07-28 2013-01-31 Pyrotek Inc. Use of a tertiary salt flux of nac1, kcl, and mgc12 for the purification of aluminum or aluminum alloys, and method thereof
CN115354169A (en) * 2022-07-01 2022-11-18 安徽中科超核科技有限公司 Reproducible and reusable purification device for liquid heavy metal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000195A (en) * 1977-06-02 1979-01-04 Alusuisse Process for the continuous production of metal alloys
GB2000195B (en) * 1977-06-02 1982-06-16 Alusuisse Process for the continuous production of metal alloys
US4295884A (en) * 1978-07-31 1981-10-20 Societe De Vente De L'aluminium Pechiney Process for treating a molten metal or alloy using liquid and solid flux
US4457496A (en) * 1980-01-14 1984-07-03 Servimetal Filtration block for liquid metals and alloys, with a mechanical and physical-chemical effect
FR2506333A1 (en) * 1981-05-19 1982-11-26 Alcan Int Ltd PROCESS FOR ELIMINATING ALKALINE AND ALKALINE EARTH METALS CONTAINED IN IMPURITIES IN MOLTEN ALUMINUM AND APPARATUS FOR ITS IMPLEMENTATION
EP0065854A3 (en) * 1981-05-19 1983-01-26 Alcan International Limited Removal of alkali metals and alkaline earth metals from molten aluminium
US4470846A (en) * 1981-05-19 1984-09-11 Alcan International Limited Removal of alkali metals and alkaline earth metals from molten aluminum
EP0108178A1 (en) * 1982-11-09 1984-05-16 Alcan International Limited Removal of alkali metals and alkaline earth metals from molten aluminium
AU568668B2 (en) * 1983-08-16 1988-01-07 Alcan International Limited Removal of inclusions from molten metal by scavenging and filtration
EP0134705A1 (en) * 1983-08-16 1985-03-20 Alcan International Limited Method of filtering molten metal
US4634105A (en) * 1984-11-29 1987-01-06 Foseco International Limited Rotary device for treating molten metal
WO1994012301A1 (en) * 1992-11-23 1994-06-09 Alcan International Limited Filtration of molten material
AU671692B2 (en) * 1992-11-23 1996-09-05 Alcan International Limited Filtration of molten material
US6468326B1 (en) 1998-07-09 2002-10-22 Membratec S.A. Method for in-line filtering of a liquid metal and implementing device
FR2780981A1 (en) * 1998-07-09 2000-01-14 Membratec Sa METHOD OF ONLINE FILTRATION OF A LIQUID METAL AND DEVICE FOR CARRYING OUT SAID METHOD
WO2000003045A1 (en) * 1998-07-09 2000-01-20 Membratec S.A. Method for in-line filtering of a liquid metal and implementing device
FR2787469A1 (en) * 1998-12-21 2000-06-23 Pechiney Aluminium Improved filtering of a molten metal on a bed of refractory particulate material with reduced retention times for equal or better filtering quality
WO2000037692A1 (en) * 1998-12-21 2000-06-29 Aluminium Pechiney Improved method for filtering a metal liquid on a bed of refractory particulate material
CN100389214C (en) * 2003-12-16 2008-05-21 兰州理工大学 Apparatus and method for removing non-metallic oxidized impurity in non-ferrous alloy liquid
EP1939311A3 (en) * 2006-12-29 2009-03-25 Hoesch Metallurgie GmbH Molten metal bath flow agent, use thereof and method for treating a molten metal bath and method for producing a molten metal bath flow agent
WO2013013321A1 (en) * 2011-07-28 2013-01-31 Pyrotek Inc. Use of a tertiary salt flux of nac1, kcl, and mgc12 for the purification of aluminum or aluminum alloys, and method thereof
CN115354169A (en) * 2022-07-01 2022-11-18 安徽中科超核科技有限公司 Reproducible and reusable purification device for liquid heavy metal

Also Published As

Publication number Publication date
CA959655A (en) 1974-12-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee