GB520533A - Improved process of melting down and remelting old aluminium, aluminium scrap, residues, dross and ashes - Google Patents

Improved process of melting down and remelting old aluminium, aluminium scrap, residues, dross and ashes

Info

Publication number
GB520533A
GB520533A GB3072238A GB3072238A GB520533A GB 520533 A GB520533 A GB 520533A GB 3072238 A GB3072238 A GB 3072238A GB 3072238 A GB3072238 A GB 3072238A GB 520533 A GB520533 A GB 520533A
Authority
GB
United Kingdom
Prior art keywords
aluminium
salt
dross
ashes
residues
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
GB3072238A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB520533A publication Critical patent/GB520533A/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
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium
    • C22B21/0092—Remelting scrap, skimmings or any secondary source aluminium
    • 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
    • C22B21/062—Obtaining aluminium refining using salt or fluxing agents
    • 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

Abstract

520,533. Refining aluminium. SCHMIDT, K. Oct. 24. 1938, No. 30722. Convention date, Oct. 27, 1937. [Class 82 (i)] A process of melting down aluminium scrap, residues, dross and ashes consists in forming in a rotary furnace, a salt melt consisting of a mixture of sodium and potassium chlorides in proportions such. that the mixture fuses at not more than 750‹C., and introducing into the molten bath approximately the same amount of aluminium, after melting and tapping of which the bath is re-used up to five times. The salt mixture may consist of approximately 56 parts of sodium chloride and 74 parts of potassium chloride, melting at 664‹C. The exhausted salt bath is tapped, ground after solidification, separated from metal particles, leached with water, and recovered by evaporation, after which it is re-used after the loss in salt has been made good.
GB3072238A 1937-10-27 1938-10-24 Improved process of melting down and remelting old aluminium, aluminium scrap, residues, dross and ashes Expired GB520533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE520533X 1937-10-27

Publications (1)

Publication Number Publication Date
GB520533A true GB520533A (en) 1940-04-26

Family

ID=6551089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3072238A Expired GB520533A (en) 1937-10-27 1938-10-24 Improved process of melting down and remelting old aluminium, aluminium scrap, residues, dross and ashes

Country Status (2)

Country Link
FR (1) FR845133A (en)
GB (1) GB520533A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481591A (en) * 1947-09-05 1949-09-13 Aluminum Co Of America Treatment of aluminous dross
US3153602A (en) * 1961-07-11 1964-10-20 Foseco Int Treatment of vessels used for holding molten aluminum metal
EP0270135A1 (en) * 1986-11-17 1988-06-08 The Boeing Company Method of removing lithium from aluminum-lithium alloys
DE10196079B3 (en) * 2000-04-25 2016-09-08 Aleris Recycling, Inc. (n.d.Ges.d. Staates Delaware) Drum oven and door construction in a drum oven

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1549979A (en) * 1977-06-02 1979-08-08 Thiem Corp Flux compositions for use in recovering aluminium
FR2600343A1 (en) * 1986-06-18 1987-12-24 Pechiney PROCESS FOR RECOVERING ALUMINUM AND LITHIUM FROM METAL WASTE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481591A (en) * 1947-09-05 1949-09-13 Aluminum Co Of America Treatment of aluminous dross
US3153602A (en) * 1961-07-11 1964-10-20 Foseco Int Treatment of vessels used for holding molten aluminum metal
EP0270135A1 (en) * 1986-11-17 1988-06-08 The Boeing Company Method of removing lithium from aluminum-lithium alloys
DE10196079B3 (en) * 2000-04-25 2016-09-08 Aleris Recycling, Inc. (n.d.Ges.d. Staates Delaware) Drum oven and door construction in a drum oven

Also Published As

Publication number Publication date
FR845133A (en) 1939-08-11

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