EP0800590B1 - Verfahren und vorrichtung zur trennung einer spezifisch leichteren phase von einer spezifisch schwereren flüssigen phase - Google Patents
Verfahren und vorrichtung zur trennung einer spezifisch leichteren phase von einer spezifisch schwereren flüssigen phase Download PDFInfo
- Publication number
- EP0800590B1 EP0800590B1 EP95942152A EP95942152A EP0800590B1 EP 0800590 B1 EP0800590 B1 EP 0800590B1 EP 95942152 A EP95942152 A EP 95942152A EP 95942152 A EP95942152 A EP 95942152A EP 0800590 B1 EP0800590 B1 EP 0800590B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suspension
- tube
- reaction vessel
- phase
- vessel
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000012071 phase Substances 0.000 title abstract description 43
- 239000007791 liquid phase Substances 0.000 title abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 68
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 10
- 229910052718 tin Inorganic materials 0.000 claims description 9
- 229910052787 antimony Inorganic materials 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052785 arsenic Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052716 thallium Inorganic materials 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 5
- 239000000463 material Substances 0.000 claims 4
- 238000000605 extraction Methods 0.000 claims 1
- 239000007858 starting material Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000001914 calming effect Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910000978 Pb alloy Inorganic materials 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006194 liquid suspension Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- 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
- F27D27/00—Stirring devices for molten material
-
- 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
- C22B13/00—Obtaining lead
- C22B13/06—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
- 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
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
-
- 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
-
- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0054—Means to move molten metal, e.g. electromagnetic pump
Definitions
- the invention relates to a method and an apparatus for Separation of a specifically easier phase from a specific one heavier liquid phase.
- the starting material for which a Phase separation takes place is single-phase in the sense of the invention Liquid or melt, in which by adding Reagents form two phases, as well as a liquid-liquid or to understand a solid-liquid suspension.
- Starting material such as Lead and other contaminated Lead such as used lead and lead alloys contain as Impurities accompanying metals that are used to produce pure Lead must be removed.
- Impurities that are separated can be like Sb, As, Sn, Tl, Zn, Ca and Mg by introducing reagents into a lead-insoluble specifically lighter phase such as transferred to the oxide phase, the itself on the surface of the specifically heavier liquid Phase such as Lead collects and is subtracted from this phase.
- the specifically lighter phase can be in liquid or solid Condition.
- the removal of an oxide phase can be done manually by skimming Perforated trowels or pulling off on an inclined ramp, such as described in DE-PS 33 03 810.
- CA-PS 10 11 108 From CA-PS 10 11 108 it is known to be a fine-grained Loosen oxide phase and at the same time pneumatically suck.
- DE-PS 38 31 898 describes a process for removing As, Sn and Sb known, in which in a filled with lead Melting boiler an open tube is arranged, the upper one The end is above the surface of the lead bath and that is a small one Volume, based on the lead bath. In the upper end of the pipe, the lead bath becomes lead in a turbulent flow pumped and technical oxygen introduced at the same time. Around a second larger tube is arranged around this tube, in which the lead intimately mixed with oxygen from the lower End of the small pipe flows.
- the larger pipe serves as Calming room in which the oxide phase generated from lead is separated and floated to the surface.
- the severed Lead flows back out of the larger pipe into the lead bath.
- the floating oxide phase flows out of the larger pipe at the top over a gutter. The reaction occurs in this process of oxygen only in a very small volume of the lead, and there will be no thermodynamic equilibrium as a whole Lead of the melting pot is achieved.
- EP-A-0 099 711 relates to a process for continuous Removal of tin from a reaction vessel Lead smelting by melting the lead with chlorine and oxygen is added so that a tin-containing slag forms, the mixed with lead near the bottom of the reaction vessel removed and to separate the lead from the tin-containing Slag from a calming zone located in the reaction vessel is abandoned. About process engineering training as well about the removal of the slag in this case, however no further information is disclosed.
- the invention is based, if possible extensive separation of a specifically easier phase from one specifically heavier liquid phase in economical and technically simple way to enable.
- the tube immersed in the suspension can be any Cross section such as round, square, polygonal, oval, etc. exhibit.
- the tube is preferably vertical in the suspension arranged. But it can also be arranged inclined or kinked become.
- the lower end of the pipe is at least as deep in the suspension arranged that under the in the tube floated specifically easier phase one fluidically calmed separation zone can form, in which is the specifically heavier liquid phase and the segregate specifically the lighter phase.
- the pipe will preferably arranged on the edge of the vessel and removable.
- the volume of the pipe is compared to the volume of the vessel is very low and is generally less than 2%. When the suspension is thoroughly mixed the specifically easier phase below the level of the lower edge of the pipe.
- the suspension is preferably mixed by a mechanical stirrer immersed in the suspension.
- the process can be continuous, semi-continuous or be carried out discontinuously.
- the vessel can be from the outside chilled e.g. by blowing air on the outer jacket. Thereby the throughput can be increased.
- a preferred embodiment of the invention is that the tube is arranged on the edge of the vessel and suspension with a stirrer arranged in the area of the center of the vessel is mixed.
- a preferred embodiment of the invention is that spatially at least one reagent in the suspension from the tube separated in the downward part by stirring generated flow is initiated.
- a reagent can be used accelerated phase separation take place or by reaction of the Reagents increased the proportion of the specifically lighter phase become.
- the Reaction of the starting material with the specific reagents creates lighter phase.
- oxygen-containing gas exert as little influence as possible on the calming zone in the pipe. This happens because the reagents at one point in the Suspension are initiated in the direction of rotation of the flow the suspension is so far in front of the pipe that the reaction of the Reagent in the suspension is finished when the suspension Tube reached.
- the introduction of the reagents into the suspension can through a submerged lance, through the hollow shaft of the Stirrer or through a sink with supply line from below respectively. Several lances or sink stones can also be used Initiation of the reagents are arranged.
- a preferred embodiment of the invention is that the suspension from above into one arranged on the bottom of the vessel in the suspension delimited calming zone occurs, the suspension settles in Separates phases, the specifically lighter phase into the suspension decreases and the specifically heavier liquid phase is continuously withdrawn and starting material is added continuously.
- the delimited calming zone can e.g. consist of a siphon, one leg arranged vertically with the opening upwards in the suspension and its other leg over the edge of the vessel as Spout is arranged.
- the suspension flows into the opening of the vertical leg, in which then a reassurance and Phase separation occurs.
- the specifically easier phase floats occurs and re-enters the suspension in the vessel.
- the specifically heavier liquid phase sinks and flows over the other leg from the vessel.
- the delimited calming zone can also be defined by a Pipe formed vertically on the bottom of the vessel into which the suspension enters from above and from which the specifically heavier liquid phase below through the bottom of the Vessel is withdrawn in a controlled amount.
- a preferred embodiment of the invention is that the tube is inserted into the reaction vessel after the start of the reaction becomes. This measure advantageously ensures that the phase separation only after a required one has been reached Temperature is initiated.
- a preferred embodiment of the invention is that the tube into the reaction vessel after the Reaction is used. This measure prevents that did not react in sluggish reactions Reagents are withdrawn from the suspension.
- a preferred embodiment of the invention is that the temperature in the reaction vessel by adding Starting material is kept constant.
- a preferred embodiment of the invention consists in the fact that the starting material is lead or lead with one or more metals such as Sb, As, Sn, Tl, Zn, Ca and Mg and one or more reagents such as oxygen-containing gases, oxygen-containing compounds, chlorine-containing gases and chlorine-containing compounds be used.
- the term "lead" is to be understood in addition to lead, any other contaminated lead such as lead and lead alloys.
- the impurities consist of all metallic elements to be separated, for example by oxidation of lead, such as Sb, As, Sn, Zn, Ca and Mg.
- the oxide phase of the impurities can be liquid and flow off automatically from the upper part of the immersed tube.
- the invention can also have a solid, small-sized physical state and be removed pneumatically or mechanically from the upper opening of the immersed tube.
- the invention is particularly suitable for removing Sb, Sn or As from lead, whereby the oxide product, which is produced in liquid form by the procedure, flows off automatically.
- the invention is particularly suitable for post-refining to remove Ca, Mg or Zn with NaOH 3 .
- Technically pure oxygen is used in particular as the oxygen-containing gas. Oxygen-enriched gas can also be used.
- a Device consisting of a reaction vessel with a stirrer, an introduction for reagents and one Pipe with an open upper end and an open lower end, the upper end of the tube above the surface of the suspension is arranged and a trigger device for the specific has lighter phase and the lower end of the tube than Inlet opening is designed for the suspension.
- the reaction vessel can be a suspension such as e.g. a lead bath be arranged.
- In the lower part of the tube is one Calming zone for the suspension, in the middle part of the pipe is a separation zone, in the upper part of the tube there is one Collection zone and a deduction device for the specific lighter phase arranged.
- the suspension such as. Lead has a long residence time in the vessel, the reaction e.g. with oxygen in the entire vessel, oxide phase and Lead phase are constantly mixed and come into contact and therefore work on the thermodynamic equilibrium can.
- the response speed is high.
- the Throughput performance is especially with continuous Working very high. That as a separator and trigger for the oxide phase tube is a very simple and failure-prone aggregate and still enables a very good one and quick separation of the two phases. Is in the pipe a small amount of oxide phase, so that even with batch Operation a refined lead with small residual amounts of e.g. Oxide phase occurs.
- the procedure is among others for Removal of Sb can be used down to ⁇ 0.05%.
- a preferred embodiment of the invention is that the lower end of the tube is formed with a widening is.
- a preferred embodiment of the invention is that at the bottom of the reaction vessel into the reaction vessel protruding tube is arranged with a valve.
- a preferred embodiment of the invention is that a siphon is arranged at the bottom of the reaction vessel, the one leg vertically with the opening up in the Suspension is arranged and the other leg over the Edge of the reaction vessel is arranged as an outlet.
- the drawing includes FIGS. 1 to 5.
- Fig. 1 is a longitudinal section through a reaction vessel with a mechanical stirrer arranged in the middle and on the edge arranged pipe according to the invention.
- Fig. 2 is a longitudinal section through the tube in larger Scale.
- FIG. 3 is a cross section according to A-A in FIG. 2.
- Fig. 4 is a longitudinal section through a reaction vessel with a siphon arranged at the bottom of the reaction vessel.
- Fig. 5 is a longitudinal section through a reaction vessel with a tube arranged at the bottom of the reaction vessel a valve.
- the reaction vessel (1) e.g. a lead smelting boiler (Fig. 1)
- a suspension (2) e.g. a lead bath.
- a mechanical stirrer (3) is arranged in the suspension (2), whose direction of rotation is indicated by the arrow.
- the inlet pipe (4) for one or more Reagents such as oxygen-containing gas, arranged.
- the tube (5) of the reaction vessel (1) is arranged upper end (6) and lower end (7) are open and the lower End (7) is formed with a widening (10).
- the top The end of the tube (5) is above the surface (8) of the suspension (2) arranged.
- the tube (5) is with Spacers (15) (Fig. 2) equipped on the inner wall of the reaction vessel (1).
- the upper open end (6) of the Tube (5) can be covered by a hood (16) on the Side of the gutter has an opening.
- the one in Fig. 3 shown section along the line A-A shows an example the ratio of the cross section of the tube (5) to that Cross section of the widening (10) formed in the lower Area of the pipe (5).
- 5 shows a reaction vessel (1), the defined calming zone consisting of a siphon (19) there is one leg (20) vertically with the opening is arranged upwards in the suspension and its other Leg (21) over the edge of the reaction vessel (1) as an outlet (22) is arranged.
- the tube (5) has a length of 110 cm from lower end (7) to the upper end (6).
- the diameter of the Tube (5) is 20 cm and the diameter of the widening (10) is 50 cm.
- the Sb content When refining a container with 130 t of lead, the Sb content could be reduced by 0.35% by weight within 60 minutes by using 130 Nm 3 of technical oxygen.
- the described invention it was possible to draw off 96% by weight of the oxidized antimony as a smear from the kettle.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Claims (11)
- Verfahren zur Trennung einer spezifisch leichteren Phase von einer spezifisch schwereren flüssigen Phase, wobei eine durch eingesetzte Reagenzien erzeugte Suspension in einem Reaktionsgefäß gerührt wird, die Suspension im Bereich des aufwärts gerichteten Teils der durch das Rühren bewirkten Strömung der Suspension in das untere Ende eines randnah in dem Gefäß angeordneten und von unten und oben offenen Rohrs eintritt, dadurch gekennzeichnet, dass das obere Ende des Rohrs und eine damit verbundene Abzugseinrichtung über der Oberfläche der Suspension liegt, die Phasen sich im Rohr trennen, die spezifisch leichtere Phase aus dem oberen Ende des Rohrs bzw. aus der Abzugseinrichtung entfernt wird, die spezifisch schwerere flüssige Phase durch das untere Ende des Rohrs in die Suspension zurückfließt und die spezifisch schwerere flüssige Phase aus dem Reaktionsgefäß abgezogen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Rohr am Rande des Gefäßes angeordnet ist und Suspension mit einem in der Mitte des Gefäßes angeordneten Rührer innig vermischt wird.
- Verfahren nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Reagenz in die Suspension von dem Rohr räumlich getrennt im abwärts gerichteten Teil der durch das Rühren erzeugten Strömung eingeleitet wird.
- Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass Suspension von oben her in eine auf dem Boden des Gefäßes in der Suspension angeordnete abgegrenzte Beruhigungszone eintritt, die Suspension sich in Phasen trennt, die spezifisch leichtere Phase in die Suspension zurückgeleitet wird und die spezifisch schwerere flüssige Phase kontinuierlich abgezogen wird und Ausgangsmaterial kontinuierlich in die Suspension zugegeben wird.
- Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass das Rohr in das Reaktionsgefäß nach Reaktionsbeginn eingesetzt wird.
- Verfahren nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, dass das Rohr in das Reaktionsgefäß nach vollständigem Ablauf der Reaktion eingesetzt wird.
- Verfahren nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, dass die Temperatur im Reaktionsgefäß durch Zugabe von Ausgangsmaterial konstant gehalten wird.
- Verfahren nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, dass als Ausgangsmaterial Werkblei oder Blei mit einem oder mehreren Metallen wie Sb, As, Sn, Tl, Zn, Ca und Mg und ein oder mehrere Reagenzien wie sauerstoffhaltige Gase, sauerstoffhaltige Verbindungen, chlorhaltige Gase und chlorhaltige Verbindungen eingesetzt werden.
- Vorrichtung zur Trennung einer spezifisch leichteren Phase von einer spezifisch schwereren flüssigen Phase, bestehend aus einem mit einer Einleitung (4) für Reagenzien versehenen Reaktionsgefäß (1), einer darin angeordneten Rührvorrichtung (3) und einem randnah in dem Reaktionsgefäß angeordneten unten und oben offenen Rohr (5) dessen oberes Ende (6) mit einer Abzugseinrichtung (12) verbunden ist, wobei eine Suspension Mittels der Rührvorrichtung im Reaktionsgefäß gerührt wird, dadurch gekennzeichnet, dass das untere Ende (7) des Rohrs (5) einen größeren Querschnitt (10) als der übrige Teil des Rohrs aufweist und das Volumen des Rohrs im Vergleich zum Volumen des Reaktionsgefäßes kleiner 2% ist, die Position des Rohrs so ausgestaltet ist, dass Suspension im Bereich des aufwärts gerichteten Teils der Strömung der Suspension in das untere Ende (7) eintritt, die Phasen sich im Rohr trennen, die spezifisch leichtere Phase aus dem oberen Ende (6) des Rohrs bzw. aus der Abzugseinrichtung entfernt und, die spezifisch schwerere flüssige Phase durch das untere Ende (7) des Rohrs in die Suspension zurückfließt.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass auf dem Boden des Reaktionsgefäßes (1) ein in das Reaktionsgefäß hineinragendes Rohr (17) mit einem Ventil (18) angeordnet ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass am Boden des Reaktionsgefäßes (1) ein Siphon (19) angeordnet ist, dessen einer Schenkel (20) vertikal mit der Öffnung nach oben in der Suspension (2) angeordnet ist und dessen anderer Schenkel (21) über den Rand des Reaktionsgefäßes als Ablauf angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19500266A DE19500266C1 (de) | 1995-01-07 | 1995-01-07 | Verfahren und Vorrichtung zur Trennung einer spezifisch leichteren Phase von einer spezifisch schwereren flüssigen Phase |
DE19500266 | 1995-01-07 | ||
PCT/EP1995/004941 WO1996021049A1 (de) | 1995-01-07 | 1995-12-13 | Verfahren und vorrichtung zur trennung einer spezifisch leichteren phase von einer spezifisch schwereren flüssigen phase |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0800590A1 EP0800590A1 (de) | 1997-10-15 |
EP0800590B1 true EP0800590B1 (de) | 2002-04-17 |
Family
ID=7751072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942152A Expired - Lifetime EP0800590B1 (de) | 1995-01-07 | 1995-12-13 | Verfahren und vorrichtung zur trennung einer spezifisch leichteren phase von einer spezifisch schwereren flüssigen phase |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0800590B1 (de) |
AT (1) | ATE216434T1 (de) |
DE (2) | DE19500266C1 (de) |
ES (1) | ES2174974T3 (de) |
NO (1) | NO319933B1 (de) |
WO (1) | WO1996021049A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006059589A1 (de) * | 2006-12-16 | 2008-06-19 | Messer Austria Gmbh | Vorrichtung und Verfahren zum Behandeln von Werkblei |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU421598B2 (en) * | 1968-03-29 | 1972-02-21 | Monzino Riotinto Of Australia Limited | Separation of molten materials |
AU475319B2 (en) * | 1972-09-29 | 1976-08-19 | Metallgesellschaft Aktiengesellschaft | Process and apparatus for removing solids formed in the refining of molten lead |
FR2276385A1 (fr) * | 1974-06-27 | 1976-01-23 | Tech Ind Fonderie Centre | Procede pour le decrassage automatique d'un cubilot a prelevement intermittent de la fonte par piquees et cubilot perfectionne selon ce procede |
CA1079979A (en) * | 1975-08-19 | 1980-06-24 | Denby H. Ward | Debismuthising lead |
DE3016160C2 (de) * | 1980-04-26 | 1982-12-23 | Preussag - Boliden - Blei GmbH, 3380 Goslar | Vorrichtung zum Entfernen einer auf einer Schmelze befindlichen Schlackenschicht |
GB2115009B (en) * | 1982-02-11 | 1985-08-07 | Ass Lead Mfg Ltd | An improved method of removing dross from a lead refining pot |
CA1199180A (en) * | 1982-02-11 | 1986-01-14 | Duncan Ritchie | Method of removing dross from a lead refining pot |
IN159763B (de) * | 1982-07-16 | 1987-06-06 | Bnf Metals Tech Centre | |
DE3831898A1 (de) * | 1988-09-20 | 1990-03-29 | Preussag Boliden Blei Gmbh | Verfahren und vorrichtung zur entfernung von arsen, zinn und antimon aus werkblei mit sauerstoff |
DE4322782A1 (de) * | 1993-07-08 | 1995-01-12 | Messer Griesheim Gmbh | Verfahren zum Entfernen von Zinn, Arsen und Antimon aus schmelzflüssigem Blei |
-
1995
- 1995-01-07 DE DE19500266A patent/DE19500266C1/de not_active Expired - Lifetime
- 1995-12-13 WO PCT/EP1995/004941 patent/WO1996021049A1/de active IP Right Grant
- 1995-12-13 DE DE59510176T patent/DE59510176D1/de not_active Expired - Lifetime
- 1995-12-13 ES ES95942152T patent/ES2174974T3/es not_active Expired - Lifetime
- 1995-12-13 EP EP95942152A patent/EP0800590B1/de not_active Expired - Lifetime
- 1995-12-13 AT AT95942152T patent/ATE216434T1/de not_active IP Right Cessation
-
1997
- 1997-07-02 NO NO19973082A patent/NO319933B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE216434T1 (de) | 2002-05-15 |
WO1996021049A1 (de) | 1996-07-11 |
ES2174974T3 (es) | 2002-11-16 |
EP0800590A1 (de) | 1997-10-15 |
NO319933B1 (no) | 2005-10-03 |
NO973082L (no) | 1997-08-14 |
DE19500266C1 (de) | 1996-02-22 |
NO973082D0 (no) | 1997-07-02 |
DE59510176D1 (de) | 2002-05-23 |
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