WO2004063653A1 - Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags - Google Patents
Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags Download PDFInfo
- Publication number
- WO2004063653A1 WO2004063653A1 PCT/IT2003/000862 IT0300862W WO2004063653A1 WO 2004063653 A1 WO2004063653 A1 WO 2004063653A1 IT 0300862 W IT0300862 W IT 0300862W WO 2004063653 A1 WO2004063653 A1 WO 2004063653A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- melting
- recovery
- plant
- aluminium
- furnace
- Prior art date
Links
- 239000004411 aluminium Substances 0.000 title claims abstract description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 45
- 239000002893 slag Substances 0.000 title claims abstract description 43
- 238000002844 melting Methods 0.000 title claims abstract description 30
- 230000008018 melting Effects 0.000 title claims abstract description 30
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 238000012216 screening Methods 0.000 title claims description 17
- 150000003839 salts Chemical class 0.000 title description 3
- 230000004927 fusion Effects 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- 210000003477 cochlea Anatomy 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000002000 scavenging effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
- F27B3/045—Multiple chambers, e.g. one of which is used for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
- F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/33—Arrangement of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
- F27D3/145—Runners therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
-
- 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
Definitions
- Object of the present invention is a modular plant for the melting of metallic materials, especially aluminium scraps, comprising a rotating furnace characterized by the lack of use of a salty bath, and with direct poured of the melted metal in a spherical store tank, an equipment for the selection and recovery of the slag of fusion and a system of scavenging.
- the melting of the aluminium scraps, for the production of ingots for alloys, and also the remelting of the same aluminium ingots is realized in the rotating furnaces, also called salty bath furnaces, in which the sea salt (usually mixed with carbonate of soda, salnitro and yellow prussiato of potassium) is melted by the heat produced in the furnace.
- Salt is a good receiver and transmitter of heat and its addition is useful as cover agent to prevent the oxidation of the metal in fusion. At almost 1000°C it reacts englobing the slag of fusion of the aluminium scraps.
- the principal scope of the present invention is to avoid the drawbacks of the preceding plants realizing mainly a rotating furnace for the fusion of primary and secondary aluminium that does not have to realize the fusion of the aluminium using a salty bath.
- Other scope of the present invention is to realize a rotating furnace for the fusion of the primary and secondary aluminium, according with the preceding purposes, in which it is the direct and continuous pouring of the fused metal in a spherical store tank without any interruption of the process of fusion, so that to improve the use of fuel, of workforce, of salty materials, and the safety conditions of the job.
- scope of the present invention is to get a plant of fusion of the aluminium for the production of ingots for foundry, according with the preceding purposes, completely modular, such that the various units, putable on track, are separable to make easy both the construction and the assemblage of them, and the maintenances and the substitution because of usury.
- Other scope of the present invention is to get a plant of fusion of the aluminium for the production of ingots for foundry, according with the preceding purposes, having a system of scavenging that allows a smaller waste of thermal energy in the furnace of fusion and simultaneously a cleaning in the gases from the heavy pollutants before the stack and quality of the air breathed by the employees in the plant decidedly improved in comparison to the preceding plants.
- the fig. 1 shows, in a three-dimensional way, the general view of the system of fusion according to the present invention.
- the fig.2 shows, in perspective section, the general view of the system of fusion according to the present invention.
- the fig. 3 shows a longitudinal section of the general view of the system of fusion according to the present invention.
- the fig. 4 shows, schematically and in a lateral point of view, a portion of the spiral element with the channels realized on it.
- the fig. 5 shows, in a lateral longitudinal view, the equipment of treatment of the slag with the disposition for the scavenging and the tracks of moving.
- the fig. 6 shows, schematically and in a general view, some component of the plant, mainly the store tank of the fused metal and the system of scavenging.
- the furnace that realizes the fusion of the primary and secondary aluminium is constituted by a cylindrical hollow body (1), with circular section, built in refractory material, resistant to the thermal stress; on an extremity the body (1) is closed by a porthole (2) used for the loading of the metallic scraps; on the other extremity it is the window of entry (3) of the flame of heat of the scrap and downward the hole (4) for the leakage of the fused liquid that, as illustrated by the drawings, is realized in a plain slot.
- the inside diameter of the body (1) changes constantly along its longitudinal axle to originate a negative inclination on the horizontal line beginning from the extremity where is the loading porthole (2) up to the extremity where is positioned the hole (4) of leakage of the melted metal.
- the difference of inclination among the two extremities in comparison to the horizontal line is 2 centimetres for linear meter of the length of the furnace.
- the furnace is covered by a metallic structure and is kept in horizontal position by metallic traverse frames (5) that place and creep on the slides (6) held on the metallic supports (7).
- the openings (8) and (9) for the scavenging of the fumes that join in a single channel of evacuation (10).
- On the spires of the spiral element (11) and in the bottom side close to the wall of the cylinder body (1) are a multiplicity of galleries or channels (12) with a favourite semicircular section.
- the basin (16) has adequately been described and claimed in the patent WO 02/39044 by the same applicant.
- the principal characteristics of a preferred example of realization of the rotating furnace, for the fusion of the primary and secondary aluminium, are the followings: external diameter: 500 centimetres inside diameter: 320 centimetres thickness of the refractory cement: 90 centimetres length of the cylinder: 1200 centimetres inclination for the pouring: 24 centimetres working temperature: 750 - 800 °C feeding: methane, oil heat consumption: 750 Kcal/h for Kg/liquid aluminium produced
- the furnace is maintained in a slow rotation, from one to four revolution/minute, on its mean axle by a gear motor.
- the melting of secondary aluminium is preferred, at first is realized the selection and mixing of different types of aluminium scraps, whose chemical composition has to be as close as possible to that of the desired alloy. Then the aluminium scraps are set, through the loading porthole (2), in the rotating furnace without addition of sodium chloride as cover agent to prevent the oxidation of the metal.
- the liquid metal is protected against the oxidation of the air because of its low position, it is not directly licked up by the stream of the warm gases (whose flow is horizontal and situated in the tall part of the furnace), and because it continually flow in the basin (16) where the fused metal is stored, through the pouring channel (13).
- the slags remains in the tall part and are held by the spiral body (11) and, once all the aluminium is melted and has been stored in spherical basin, are discharged close to the loading porthole through a channel equipped with a cochlea, finishing the process of melting.
- the slags put in the channel and pushed by the cochlea, reaches the module of selection wherein they enter from the extremity (18).
- the module of selection is constituted by three hollow metallic and coaxial cylinders, one inserted in the other, and open to the left end, and is kept in horizontal position by booms (19) and metallic traverse frames (20) that place and creep on the slides (21) joined on metallic supports (22) with the interposition of a gear carriage (23).
- the cylinders (24). and (25) have the surface side equipped with holes, greater on the first cylinder (24) and smaller on the second (25) so that it is possible the pouring of slags of different dimensions.
- the whole, constituted by the three cylinders, has put in slow rotation around the longitudinal axle, so have a remixing of the slags as soon as they advance along the cylinders pushed by the cochlea.
- the slag according with their weight and dimensions, passes from the first cylinder (24) up to the last one (26).
- the slags essentially constituted by iron parts, steel, copper, that is material that has few or not put through the process of fusion; in the second cylinder (25) are the slags of aluminium oxide, while in the third cylinder (26) are essentially the dusts. It is very interesting the fact that the slags, flowing, are selected as well as they are cooled. The slags, so treated, flow out of the extremities of the cylinders and fall in the channels (27), (28), (29) positioned everyone below a cylinder and, by a cochlea system present in every channel, are pushed, at almost ambient temperature, in the storage buckets.
- the recovered aluminium oxide is recycled and joined to the feeding charge of fusion. All the exhaust gases produced in the module of selection and recovery of the slag are carried, through canalizations, to the cap (30), and don't escape in the external environment. It is very important that the module of selection and recovery of the slag is constituted by units, placeables on tracks, (31), so that they can be open for inspections and maintenance.
- the furnace of fusion is also modular, put on carriages that are moved on tracks, to make possible the opening.
- Other great innovation is the system of scavenging, constituted by two separate canalizations.
- the warm gases, originated by the furnace of fusion at a maximum temperature of 300°C, are carried through the pipeline (32) in the underground pit (33) accessible by a porthole of inspection (34).
- the gases exclusively escape from the furnace of fusion, because of the concomitant action due to the kinetic energy (that originates from their heat), to the expansion that they have by reaching the pit (33), to the loss of pressure produced by the chimney (35) and to the drag force produced by the air flow, at a great speed, that escapes from the extremity (36) of the pipeline (37).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Seasonings (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003614780 DE60314780T2 (en) | 2003-01-16 | 2003-12-30 | DRUM OILING PLANTS FOR MELTING ALUMINUM, WITH SORTING AND RECOVERY OF SLAG |
JP2004566250A JP4494220B2 (en) | 2003-01-16 | 2003-12-30 | A melting plant equipped with a rotary furnace without the addition of aluminum salt, with a slag sorting and recovery function |
AU2003295224A AU2003295224B2 (en) | 2003-01-16 | 2003-12-30 | Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags |
US10/542,530 US7582252B2 (en) | 2003-01-16 | 2003-12-30 | Plant with rotating furnace for the melting without salt of aluminum with screening and recovery of the slags |
EP03786228A EP1608926B1 (en) | 2003-01-16 | 2003-12-30 | Plant with rotating furnace for the melting without salt of aluminium, with screening and recovery of the slags |
CA 2514894 CA2514894A1 (en) | 2003-01-16 | 2003-12-30 | Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2003SA000004 ITSA20030004A1 (en) | 2003-01-16 | 2003-01-16 | ROTARY OVEN SYSTEM FOR SALT-FREE MELTING OF METAL MATERIALS. |
ITSA2003A000004 | 2003-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004063653A1 true WO2004063653A1 (en) | 2004-07-29 |
Family
ID=27621007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2003/000862 WO2004063653A1 (en) | 2003-01-16 | 2003-12-30 | Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags |
Country Status (14)
Country | Link |
---|---|
US (1) | US7582252B2 (en) |
EP (1) | EP1608926B1 (en) |
JP (1) | JP4494220B2 (en) |
CN (1) | CN100465565C (en) |
AT (1) | ATE366400T1 (en) |
AU (1) | AU2003295224B2 (en) |
CA (1) | CA2514894A1 (en) |
DE (1) | DE60314780T2 (en) |
ES (1) | ES2290533T3 (en) |
IT (1) | ITSA20030004A1 (en) |
PT (1) | PT1608926E (en) |
RU (1) | RU2353681C2 (en) |
WO (1) | WO2004063653A1 (en) |
ZA (1) | ZA200505660B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITRM20090576A1 (en) * | 2009-11-09 | 2011-05-10 | Hitech S R L | FULLY MODULAR ALUMINUM ALLOY FOUNDATION PLANT. |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103602817A (en) * | 2013-11-13 | 2014-02-26 | 安徽省金盈铝业有限公司 | High/low two-furnace low-temperature pre-impurity-removal process for secondary aluminium |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010935A (en) * | 1975-12-22 | 1977-03-08 | Alumax Inc. | High efficiency aluminum scrap melter and process therefor |
US4491473A (en) * | 1983-11-18 | 1985-01-01 | Aluminum Company Of America | Method of operating metallic scrap treating furnace to fragment and segregate metallic components therein |
EP0400925A2 (en) * | 1989-05-29 | 1990-12-05 | Alcan International Limited | Process and apparatus for melting contaminated metalliferous scrap material |
JPH10244241A (en) * | 1997-03-05 | 1998-09-14 | Mitsubishi Alum Co Ltd | Treatment method for aluminum dross residual ash |
DE20013042U1 (en) * | 2000-07-28 | 2000-12-21 | Sug Schmelz Und Giesanlagen Gm | Rotary drum furnace |
WO2002039044A2 (en) * | 2000-11-13 | 2002-05-16 | Antonio Spoleto | Melting furnace for metal leagues fit to the direct and continuous poured of the melted metal |
WO2002101309A1 (en) * | 2001-06-08 | 2002-12-19 | Catalano, Adriana | An apparatus for the extraction of metallic magnesium |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1798500A (en) * | 1919-02-01 | 1931-03-31 | C H Ellsworth | Rotary kiln |
US2223569A (en) * | 1931-08-17 | 1940-12-03 | Lohse Julius | Process and apparatus for the direct recovery of heavy metals of the nonferrous group from ores and other primary materials |
US2165128A (en) * | 1938-04-22 | 1939-07-04 | Traylor Engineering And Mfg Co | Rotary kiln |
US3228670A (en) * | 1963-01-23 | 1966-01-11 | R N Corp | Methods and apparatus for ore reduction and processing of other chemically reactive aggregates |
JP3335870B2 (en) * | 1997-03-28 | 2002-10-21 | 株式会社クボタ | Rotary drum type heat treatment equipment |
JP4027592B2 (en) * | 2000-12-28 | 2007-12-26 | 株式会社栗本鐵工所 | Empty can processing method |
-
2003
- 2003-01-16 IT IT2003SA000004 patent/ITSA20030004A1/en unknown
- 2003-12-30 AT AT03786228T patent/ATE366400T1/en active
- 2003-12-30 CN CNB2003801088378A patent/CN100465565C/en not_active Expired - Fee Related
- 2003-12-30 CA CA 2514894 patent/CA2514894A1/en not_active Abandoned
- 2003-12-30 AU AU2003295224A patent/AU2003295224B2/en not_active Ceased
- 2003-12-30 EP EP03786228A patent/EP1608926B1/en not_active Expired - Lifetime
- 2003-12-30 PT PT03786228T patent/PT1608926E/en unknown
- 2003-12-30 US US10/542,530 patent/US7582252B2/en not_active Expired - Fee Related
- 2003-12-30 JP JP2004566250A patent/JP4494220B2/en not_active Expired - Fee Related
- 2003-12-30 DE DE2003614780 patent/DE60314780T2/en not_active Expired - Lifetime
- 2003-12-30 WO PCT/IT2003/000862 patent/WO2004063653A1/en active IP Right Grant
- 2003-12-30 RU RU2005121488A patent/RU2353681C2/en not_active IP Right Cessation
- 2003-12-30 ES ES03786228T patent/ES2290533T3/en not_active Expired - Lifetime
-
2005
- 2005-07-14 ZA ZA200505660A patent/ZA200505660B/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010935A (en) * | 1975-12-22 | 1977-03-08 | Alumax Inc. | High efficiency aluminum scrap melter and process therefor |
US4491473A (en) * | 1983-11-18 | 1985-01-01 | Aluminum Company Of America | Method of operating metallic scrap treating furnace to fragment and segregate metallic components therein |
EP0400925A2 (en) * | 1989-05-29 | 1990-12-05 | Alcan International Limited | Process and apparatus for melting contaminated metalliferous scrap material |
JPH10244241A (en) * | 1997-03-05 | 1998-09-14 | Mitsubishi Alum Co Ltd | Treatment method for aluminum dross residual ash |
DE20013042U1 (en) * | 2000-07-28 | 2000-12-21 | Sug Schmelz Und Giesanlagen Gm | Rotary drum furnace |
WO2002039044A2 (en) * | 2000-11-13 | 2002-05-16 | Antonio Spoleto | Melting furnace for metal leagues fit to the direct and continuous poured of the melted metal |
WO2002101309A1 (en) * | 2001-06-08 | 2002-12-19 | Catalano, Adriana | An apparatus for the extraction of metallic magnesium |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
UNLU N ET AL: "Comparison of salt-free aluminum dross treatment processes", RESOURCES CONSERVATION AND RECYCLING, ELSEVIER SCIENCE PUBLISHER, AMSTERDAM, NL, vol. 36, no. 1, July 2002 (2002-07-01), pages 61 - 72, XP004393588, ISSN: 0921-3449 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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ITRM20090576A1 (en) * | 2009-11-09 | 2011-05-10 | Hitech S R L | FULLY MODULAR ALUMINUM ALLOY FOUNDATION PLANT. |
WO2011055402A1 (en) * | 2009-11-09 | 2011-05-12 | Hitech Srl. | Completely modular plant for melting and casting aluminium from scrap material |
Also Published As
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JP2006513321A (en) | 2006-04-20 |
EP1608926B1 (en) | 2007-07-04 |
US20060273498A1 (en) | 2006-12-07 |
EP1608926A1 (en) | 2005-12-28 |
ITSA20030004A0 (en) | 2003-01-16 |
JP4494220B2 (en) | 2010-06-30 |
ITSA20030004A1 (en) | 2004-07-17 |
AU2003295224B2 (en) | 2009-08-27 |
PT1608926E (en) | 2007-10-17 |
RU2005121488A (en) | 2006-02-10 |
CN100465565C (en) | 2009-03-04 |
ZA200505660B (en) | 2006-03-29 |
DE60314780D1 (en) | 2007-08-16 |
US7582252B2 (en) | 2009-09-01 |
ATE366400T1 (en) | 2007-07-15 |
RU2353681C2 (en) | 2009-04-27 |
CA2514894A1 (en) | 2004-07-29 |
AU2003295224A1 (en) | 2004-08-10 |
DE60314780T2 (en) | 2008-04-10 |
ES2290533T3 (en) | 2008-02-16 |
CN1745287A (en) | 2006-03-08 |
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