EP1031634A1 - Verfahren zur Separation von Metallschmelzen unter Zugabe von Metallhydrid, insbesondere MgH2 - Google Patents
Verfahren zur Separation von Metallschmelzen unter Zugabe von Metallhydrid, insbesondere MgH2 Download PDFInfo
- Publication number
- EP1031634A1 EP1031634A1 EP00102815A EP00102815A EP1031634A1 EP 1031634 A1 EP1031634 A1 EP 1031634A1 EP 00102815 A EP00102815 A EP 00102815A EP 00102815 A EP00102815 A EP 00102815A EP 1031634 A1 EP1031634 A1 EP 1031634A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- metals
- alloys
- hydride
- separation
- 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.)
- Withdrawn
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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/32—Refining zinc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
- B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
Definitions
- the invention relates to a method for separating molten metals, the metal melts being treated with metal hydrides become.
- a first embodiment of the present invention exists thus in a process for the separation of metal melts II.
- Main group and sub-groups including of their alloys which is characterized in that the Metals or alloys with a metal hydride in one Melt converts.
- these metals are therefore selected from Non-ferrous and non-precious metals, especially selected made of magnesium, calcium, aluminum, silicon, titanium or Zinc and their alloys. If in the sense of the present Invention the term alloy is used, so is this to understand that this at least 30 wt .-% of mentioned metal included.
- Another preferred embodiment of the present invention consists in using metals or metal alloys one of the metal hydrides to be separated.
- metals or metal alloys For separation of magnesium, for example, it is particularly special Advantage of using magnesium hydride.
- magnesium hydride In an analogous way of course, the use of mixed metal hydrides the implementation of alloys possible. In the same way it is but also possible through a special selection of the metal hydride or the metal hydrides deliberately new material components in to introduce the metal alloy.
- the molar ratio from metal including alloys to metal hydride in the range from 1 to 0.0001 to 1 to 100, preferably in the range of 1 in 0.001 to 1 in 0.01, especially in the range of 1 in 0.005 to 1 in 0.03 is set.
- This area is special prefers. Both play within the aforementioned areas economic considerations play a special role as well the possibility of repeating the treatment or implementation several times.
- impurities especially volatile metal hydride to separate forming impurities from a metal.
- the metals or alloys become molten treated with the metal hydrides.
- Advantageously get the hydrides are used, the metals of which are also used as alloy components act in the metal matrix.
- a powdery Al-Mg alloy is applied with a small amount of autocatalytically produced magnesium hydride (TEGO-Magnan®) and heats this mixture in a muffle to about 1000 ° C, so after cooling the Reaction mixture, the solidified metal obtained is light silver shiny outer and inner surfaces that look more ordinary Do not start air even after months of storage.
- TEGO-Magnan® autocatalytically produced magnesium hydride
- zinc Electrode zinc
- a steel capsule was filled with a mixture consisting of 500 g of a 99.5% by weight magnesium powder and 10 g of a 95% by weight autocatalytically produced magnesium hydride (Tego Magnan®), charged and in an inerted induction furnace heated to 750 ° C. The temperature was held for about 3 minutes; then the reaction mixture was cooled. Was received a regulus crisscrossed by light silvery cavities, which even after 3 months of storage in an ordinary atmosphere neither on these cavity surfaces generated by the process, still inclined to the light silver saw cut surface Tarnishing showed.
- Cat Magnan® autocatalytically produced magnesium hydride
- Example 1 As in Example 1, a steel capsule with a mixture was composed from 700 g of a 99.99% by weight lumpy electrolyte zinc and 14 g of a 95 wt .-% autocatalytically produced Magnesium hydride (Tego Magnan®) loaded and in one inerted induction furnace heated to 550 ° C. After about The reaction mixture was cooled for 10 minutes. Receive became a Zn-Regulus, whose saw cut surface even after months Storage in the atmosphere no start-up behavior showed.
- Cat Magnan® Magnesium hydride
- Elemental analysis proves the separation effect achieved by hydride treatment: sample description % Bi % Cu % Fe % Pb % Sn Zn (Initial state) ⁇ 0.001 0.0018 0.0025 0.0023 0.0015 Zn (after treatment with magnesium hydride) ⁇ 0.001 ⁇ 0.001 0.0011 0.0012 ⁇ 0.001
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Probe | Bezeichnung | % Al | % Cu | % Fe | % Si | % Zn |
Mg | (Ausgangszustand) | 0,22 | <0,001 | 0,073 | 0,0054 | 0,0017 |
Mg | (nach der Behandlung mit Magnesiumhydrid) | 0,0093 | <0,001 | 0,0072 | 0,0032 | 0,0018 |
Probe | Bezeichnung | % Bi | % Cu | % Fe | % Pb | % Sn |
Zn | (Ausgangszustand) | <0,001 | 0,0018 | 0,0025 | 0,0023 | 0,0015 |
Zn | (nach der Behandlung mit Magnesiumhydrid) | <0,001 | <0,001 | 0,0011 | 0,0012 | <0,001 |
Claims (6)
- Verfahren zur Separation von Metallschmelzen der II. bis IV. Hauptgruppe und der Nebengruppen einschließlich ihrer Legierungen, dadurch gekennzeichnet, daß man die Metalle oder Legierungen mit einem Metallhydrid in der Schmelze umsetzt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Metalle ausgewählt sind aus Nichteisenmetallen und Nichtedelmetallen, insbesondere Magnesium, Calcium, Aluminium, Silicium, Titan oder Zink sowie deren Legierungen.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß man ein oder mehrere Metallhydride einsetzt, dessen oder deren Metalle in den zu behandelnden Metallen oder Legierungen in gleichen oder verschiedenen Anteilen vorhanden sind.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man ein Metallmischhydrid einsetzt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Stoffmengenverhältnis von Metall einschließlich Legierungen zu Metallhydrid im Bereich von 1 zu 0,0001 bis 1 zu 100, insbesondere im Bereich von 1 zu 0,001 bis 1 zu 0,01, beispielsweise im Bereich von 1 zu 0,005 bis 1 zu 0,03 eingestellt ist.
- Verfahren nach einem der Ansprüche 1 bis 5 zur Abtrennung von Verunreinigungen, insbesondere flüchtiger Metallhydrid bildender Verunreinigungen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19907857 | 1999-02-24 | ||
DE19907857 | 1999-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1031634A1 true EP1031634A1 (de) | 2000-08-30 |
Family
ID=7898627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00102815A Withdrawn EP1031634A1 (de) | 1999-02-24 | 2000-02-11 | Verfahren zur Separation von Metallschmelzen unter Zugabe von Metallhydrid, insbesondere MgH2 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6387154B1 (de) |
EP (1) | EP1031634A1 (de) |
CA (1) | CA2298874A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024776C1 (de) * | 2000-05-19 | 2001-09-06 | Goldschmidt Ag Th | Verwendung von Metallhydrid-behandeltem Zink in der metallorganischen Synthese |
WO2002094483A2 (de) * | 2001-05-19 | 2002-11-28 | Goldschmidt Ag | Herstellung von metallschäumen |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014209408A1 (de) | 2014-05-19 | 2015-11-19 | Evonik Degussa Gmbh | Ethoxylatherstellung unter Verwendung hoch aktiver Doppelmetallcyanid-Katalysatoren |
PL3168273T3 (pl) | 2015-11-11 | 2018-10-31 | Evonik Degussa Gmbh | Polimery utwardzalne |
EP3321304B1 (de) | 2016-11-15 | 2019-06-19 | Evonik Degussa GmbH | Mischungen zyklischer-verzweigter siloxane vom d/t-typ und deren folgeprodukte |
EP3415547B1 (de) | 2017-06-13 | 2020-03-25 | Evonik Operations GmbH | Verfahren zur herstellung sic-verknüpfter polyethersiloxane |
EP3415548B1 (de) | 2017-06-13 | 2020-03-25 | Evonik Operations GmbH | Verfahren zur herstellung sic-verknüpfter polyethersiloxane |
EP3438158B1 (de) | 2017-08-01 | 2020-11-25 | Evonik Operations GmbH | Herstellung von sioc-verknüpften polyethersiloxanen |
EP3467006B1 (de) | 2017-10-09 | 2022-11-30 | Evonik Operations GmbH | Mischungen zyklischer-verzweigter siloxane vom d/t-typ und deren folgeprodukte |
EP3611215A1 (de) | 2018-08-15 | 2020-02-19 | Evonik Operations GmbH | Verfahren zur herstellung acetoxygruppen-tragender siloxane |
EP3611214A1 (de) | 2018-08-15 | 2020-02-19 | Evonik Operations GmbH | Sioc-verknüpfte, lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB807531A (en) * | 1955-02-11 | 1959-01-14 | Patentverwertung Ag | Process for the production of castings |
SU831834A1 (ru) * | 1979-10-16 | 1981-05-23 | Московский Ордена Трудового Крас-Ного Знамени Институт Стали Исплавов | Шлакообразующа смесь дл рафиниро-ВАНи РАСплАВА |
EP0618303A1 (de) * | 1993-03-26 | 1994-10-05 | Hitachi Metals, Ltd. | Luftdichtes Gussstück aus Aluminium-Legierung und Verfahren zur Herstellung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2983597A (en) * | 1959-06-11 | 1961-05-09 | Lor Corp | Metal foam and method for making |
US3940262A (en) * | 1972-03-16 | 1976-02-24 | Ethyl Corporation | Reinforced foamed metal |
-
2000
- 2000-02-11 EP EP00102815A patent/EP1031634A1/de not_active Withdrawn
- 2000-02-15 CA CA002298874A patent/CA2298874A1/en not_active Abandoned
- 2000-02-23 US US09/510,860 patent/US6387154B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB807531A (en) * | 1955-02-11 | 1959-01-14 | Patentverwertung Ag | Process for the production of castings |
SU831834A1 (ru) * | 1979-10-16 | 1981-05-23 | Московский Ордена Трудового Крас-Ного Знамени Институт Стали Исплавов | Шлакообразующа смесь дл рафиниро-ВАНи РАСплАВА |
EP0618303A1 (de) * | 1993-03-26 | 1994-10-05 | Hitachi Metals, Ltd. | Luftdichtes Gussstück aus Aluminium-Legierung und Verfahren zur Herstellung |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 198210, Derwent World Patents Index; Class M24, AN 1982-19539E, XP002139759 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024776C1 (de) * | 2000-05-19 | 2001-09-06 | Goldschmidt Ag Th | Verwendung von Metallhydrid-behandeltem Zink in der metallorganischen Synthese |
US6521771B2 (en) | 2000-05-19 | 2003-02-18 | Goldschmidt Ag | Use of zinc treated with metal hydride in organometallic synthesis |
WO2002094483A2 (de) * | 2001-05-19 | 2002-11-28 | Goldschmidt Ag | Herstellung von metallschäumen |
WO2002094483A3 (de) * | 2001-05-19 | 2003-03-13 | Goldschmidt Ag Th | Herstellung von metallschäumen |
Also Published As
Publication number | Publication date |
---|---|
US6387154B1 (en) | 2002-05-14 |
CA2298874A1 (en) | 2000-08-24 |
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