EP2106454A1 - Vorrichtung und verfahren zum behandeln von werkblei - Google Patents
Vorrichtung und verfahren zum behandeln von werkbleiInfo
- Publication number
- EP2106454A1 EP2106454A1 EP07822541A EP07822541A EP2106454A1 EP 2106454 A1 EP2106454 A1 EP 2106454A1 EP 07822541 A EP07822541 A EP 07822541A EP 07822541 A EP07822541 A EP 07822541A EP 2106454 A1 EP2106454 A1 EP 2106454A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lead
- reaction vessel
- bath
- gas
- oxidant
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 239000007800 oxidant agent Substances 0.000 claims abstract description 50
- 230000001590 oxidative effect Effects 0.000 claims abstract description 26
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 22
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 21
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 20
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229910052718 tin Inorganic materials 0.000 claims abstract description 18
- 238000010926 purge Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 4
- 230000005587 bubbling Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- 230000009194 climbing Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 60
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 18
- 239000001301 oxygen Substances 0.000 abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 abstract description 18
- 238000007670 refining Methods 0.000 abstract description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 7
- 239000002893 slag Substances 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- GVFOJDIFWSDNOY-UHFFFAOYSA-N antimony tin Chemical compound [Sn].[Sb] GVFOJDIFWSDNOY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- C22B13/00—Obtaining lead
- C22B13/06—Refining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- 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
Definitions
- the invention relates to a device and a method for treating lead lead.
- the Harris process uses caustic soda and nitric oxide as the oxidant. With a pump, the molten lead to be refined is pumped into an intermediate container, wherein the deposited oxides are obtained in a salt slag. The slag must then be processed consuming consuming.
- oxygen is introduced with a lance immersed in the lead bath under high pressure in a turbulent flow of liquid lead concentrated to a proportionate volume, relative to the melting vessel.
- the oxygen-intimately mixed lead enters into a larger volume to calm down, in which the oxides float and are scraped off.
- the turbulent flow of lead is generated by the strong flow of oxygen from the lance and by a lead pump that pumps the lead into a reaction tube.
- the reaction tube is arranged in a second cylinder of larger volume, from which the oxides are withdrawn.
- the lead flows through a bottom outlet port.
- the oxygen outlet region of a gas nozzle for blowing oxygen into molten lead is surrounded by a protective gas.
- the protective gas preferably nitrogen (N 2 ), carbon dioxide (CO 2 ) or argon (Ar), is introduced via a separate inert gas supply into an outer tube surrounding the actual oxygen nozzle.
- N 2 nitrogen
- CO 2 carbon dioxide
- Ar argon
- a lead-free cavity is formed in front of the gas nozzle, and thus the reaction site is displaced from the exit of the gas nozzle into the bath of lead melt.
- the contact between molten lead and gas nozzle is avoided by the simultaneous formation of a protective gas cushion surrounding at least the outlet region.
- the gas nozzle is cooled from the outside by the inert shielding gas.
- the oxidation is improved by the high velocity, preferably sonic velocity, injected into the molten lead gas inert gas, because this the turbulent mixing of lead melt and oxygen is increased.
- the inert gas is also used as a mixed gas, which is added to the oxygen. As a result, the oxygen input is adapted to the sinking offer of antimony in the melt and excessive oxidation of lead is avoided.
- a disadvantage of this method is the rather high proportion of oxygen not used for the reaction, which flows through the melt unused. The reaction is therefore slow. An acceleration must be bought with a high consumption of oxygen.
- the object of the invention is therefore to provide a way to remove antimony, arsenic and tin from lead by means of a gaseous oxidizing agent, in which the efficiency in carrying out the reaction over the prior art method is increased.
- This object is achieved by a device having the features of patent claim 1 and by a method having the features of patent claim 8.
- a device for removing tin, antimony and arsenic from lead which is equipped with a reaction vessel for holding a bath of liquid lead and a gas supply system for introducing a gaseous oxidant into the reaction vessel, characterized in that the gas supply system in the bottom region of the Reaction vessel arranged insertion means for bubbling the oxidant.
- the reaction vessel may preferably be structurally separate from a lead bath receiving the lead bath. Refining boiler to be installed in or next to this, in each case a flow connection between the two, which allows a continuous or batchwise treatment of the lead from the lead boiler.
- gas bubbles are introduced from the supply channels of the inlet means arranged in the bottom region of the reaction vessel traverse the entire lead bath from bottom to top with the least possible speed.
- the large surface area of the gas bubbles and the long residence time of the gas bubbles in the bath ensure a very effective oxidation of the foreign metals contained in the lead.
- the entry device can be used any apparatus by which it is possible to enter a gaseous oxidant in the form of the smallest possible and as widely distributed in the lead bath gas bubbles, and which is resistant to the temperatures of the molten lead. Preference is given to a arranged in the bottom of the reaction vessel entry device that allows a large-scale beading of the oxidant in the lead bath.
- the insertion device may comprise an arrangement of metallic, ceramic and / or nozzles provided with a heat and corrosion resistant coating, approximately in the form of juxtaposed tubes, which are arranged in the bottom region of the reaction vessel and fluidly connected to a source of the oxidant.
- the entry means comprises a purging plug of a gas-permeable material.
- Flushing stones for bubbling gases into metallurgical melts are known per se, but have not hitherto been used to treat lead lead.
- Such purging blocks are made of a gas-permeable and heat-resistant material such as ceramic.
- a variety of fine, extending through the block of the purging plug through channels allows the bubbling of the oxidant in the form of fine gas bubbles.
- purging blocks are distinguished, which can also be used in the context of the invention: joint washer, dishwasher with unrated porosity and dishwasher with directed porosity.
- joint washer dishwasher with unrated porosity
- dishwasher with directed porosity.
- reaction vessel has the shape of a substantially upright cylinder and the insertion device extends over a substantial part of the base surface of the reaction vessel.
- the entry device can also occupy virtually the entire footprint.
- the two-dimensional entry of the oxidizing agent causes a particularly large volume of the lead bath to be brought into contact with oxidizing agent.
- the reaction vessel is equipped with at least one supply line and with at least one lead for molten lead, whereby a continuous operation of the reaction vessel is made possible.
- a yet further preferred embodiment of the invention provides, the at least one supply line and the at least one discharge vertically from each other spaced to arrange. This makes it possible to produce a directed or rotating, upward or downward flow of the work lead in cocurrent or countercurrent to the gas inlet in the reaction vessel.
- the desired reaction is further favored; in counterflow, the difference in concentration of the gas bubbles and the lead bath leads to a higher refining depth, in the case of a rectified flow, the contact duration of the lead is prolonged at the surface of the gas bubbles.
- reaction vessel in the reaction vessel and / or in the supply lines and or discharges tempering for heating or cooling of the molten lead are provided, which ensure a constant temperature in the lead bath or boiler during the treatment of the lead.
- the object of the invention is also achieved by a process for the removal of tin, antimony and arsenic from lead, in which a lead bath of liquid lead is contacted with a gaseous oxidant in a reaction vessel, metallic lead contained in the lead reacts with the oxidizing agent and the reaction products are subsequently removed, and characterized in that the oxidizing agent is bubbled into the lead bath in the form of gas bubbles by means of an introduction device arranged in the bottom region of the reaction vessel.
- the supply of the oxidant in the form of as many and as small as possible gas bubbles, which are widely distributed in the volume of the lead bath and ascend as slowly as possible, increases the efficiency of the reaction compared to prior art methods in which the oxidant mittein a lance is entered into the lead bath ,
- the residence time of the gas bubbles in the lead bath is further increased by the fact that the gas bubbles describe a zigzag or helical trajectory when ascending through the bath of liquid lead.
- the gas bubbles In order to have the largest possible surface area for the reaction, it is advantageous if the gas bubbles have an approximately hemispherical or elliptical shape.
- the size and shape of the gas bubbles introduced, as well as the path described by the gas bubbles (hereinafter referred to as "bubble parameters") significantly determined by the entry system and by the purity and the geometric properties of the lead bath. It can be determined empirically or by simulation calculations, which entry system leads when used in each lead bath to which bubble parameters. Thus, the suitable for the particular application system can be determined prior to treatment and installed in the reaction vessel.
- the gas bubbles have on exit from the entry device on average a volume of less than 500 mm 3 , preferably less than 0.5 mm 3 .
- the use of the method according to the invention proves to be particularly advantageous in continuous operation, that is to say with continuous supply of work lead with simultaneous removal of treated lead.
- a certain, compared to the unprocessed lead lead reduced content of tin, antimony and / or arsenic is specified in the reaction vessel and regulated the supply / discharge of lead and / or the amount and / or composition of the oxidizing agent towards these parameters.
- a preferred embodiment of the method according to the invention provides that the liquid Maschinenblei is passed in countercurrent or direct current to the ascending oxidant through the reaction vessel. Also advantageous is an upward or downward helical guidance of the liquid lead.
- the production of a correspondingly directed flow in the lead can be carried out by means of suitable arranged in the reaction vessel pumps, agitators o. The like. Or by a continuous supply of liquid Maschinenblei from the outside and a suitable arrangement of one or more merging into the reaction vessel inflows and outlets for the liquid lead.
- a particularly advantageous embodiment of the invention provides for a recirculation of the work lead including the reaction vessel.
- the lead is in contact with the oxidant for so long until the content of tin, antimony and arsenic falls below a certain pre-selected limit.
- Such recirculation may also be combined with continuous feed of lead, with a fixed value for the content of tin, antimony and / or arsenic being defined as the target to be met during continuous operation.
- the lead supplied to the reaction vessel and / or the amount and / or composition of the oxidant fed to the reaction vessel are controlled.
- the control is expediently carried out as a function of predetermined values of specific reaction parameters, such as, for example, the temperature in the reaction vessel or the contents of tin, arsenic, and / or antimony in the lead bath or the oxygen content in the oxidizing agent.
- FIG. 1 shows schematically a device according to the invention for treating lead lead.
- the device 1 comprises an approximately cylindrical reaction vessel 2 for receiving a lead bath 3 of molten lead.
- a reaction of contained in the lead bath 3 metallic impurities, in particular tin, antimony and arsenic, with a gaseous oxidizing agent.
- the reaction products formed in the reaction lead to the formation of dross, which accumulates as a so-called "smear" on the surface of the lead bath 3.
- the supply line or lines can also be arranged Supply lines may be arranged such that the liquid Maschinenblei is introduced with a tangential flow component in the reaction vessel 2, to a circular or helical flow in the interior of the reaction vessel 2 to enable.
- the liquid lead is brought from a lead boiler 5 by means of a lead 4 arranged in the lead pump 7.
- the lead boiler 5 can also be located above the reaction vessel 2, so that the supply of Maschinenbleis can be done by external gravity even without external energy.
- a heating device 8 is arranged in the supply line 4, by means of which the work lead can be heated to a predetermined temperature.
- a discharge 11 is provided which at the same time determines the filling level 10 of the lead bath 3.
- both treated, ie, antimony, arsenic and tin, at least partially liberated work lead, and also on the surface of the lead bath, driving dross are removed.
- the dross is optionally skimmed off and removed by means of a known separation device 12.
- the treated lead then passes back by its own gravity and / or by means of a conveyor 14 to the lead boiler 5, from where it is either pumped in a recycle again in the reaction vessel 2 or a further treatment step, such as the removal of precious metals, zinc or bismuth ,
- a cooling device 16 is further provided, in which the Werkblei, which is heated due to the running in the reaction vessel 2 exothermic oxidation reaction can be cooled to a predetermined temperature value, if the temperature differences require it.
- a supply means 18 for an oxidizing agent or cooling gas is provided in the lower part of the reaction vessel 2.
- the feed device 18 comprises an entry device 19, which in the exemplary embodiment is a purge stone which extends substantially over the entire bottom surface of the reaction vessel 2, as well as an oxidant supply line 20 operatively connected to the entry device 19.
- the purge block is for example made of one made of porous, ceramic material. Due to the porosity of the material, gas permeable microchannels extend through the entire body of the purging plug, through which the oxidizing agent flows from the oxidant supply line 20 into the lead bath.
- the oxidizing agent Feed line 20 is fluidly connected to gas supply lines 21, 22, via the oxygen (gas supply line 21) or an inert gas (gas supply line 22), for example nitrogen, from corresponding, not shown pressure vessels can be fed into the oxidant supply line 20. If the corresponding gases are stored under high pressure in the pressure vessel, a reducing valve, likewise not shown here, for adjusting the pressure to, for example, 5 bar, is provided in the supply lines 21, 22.
- molten Maschinenblei is brought from the lead boiler 5 via the supply line 4 and thereby brought in the heater 8 to the desired reaction temperature of, for example, 700-750 0 C.
- the desired reaction temperature for example, 700-750 0 C.
- the reaction vessel 2 is filled to the filling level 10 with molten Maschinenblei.
- the lead is discharged via the outlet 11, whereby an upward flow is generated in the reaction vessel 2. It is also possible to regulate the temperature and / or the concentration of tin, antimony and / or arsenic in the lead bath 3 via the flow of the added or discharged factory lead.
- an oxidizing agent is introduced, for example, at a pressure of 5 bar.
- the oxidizing agent is, for example, oxygen, air or a mixture of oxygen and an inert gas, for example nitrogen.
- the composition of the oxidizing agent remains the same during the treatment period or is adapted to the requirements of the reaction taking place in the reaction vessel 2.
- the supply of oxygen and / or nitrogen via valves not shown here in the gas supply lines 21, 22 set and, for example, in dependence on measured parameters, such as the tin-antimony and / or arsenic concentration in the lead bath 3 or the temperature 3 lead bath, to be fixed. In particular, can be done by supplying inert gas from the gas supply line 22, a cooling of the lead bath 3, if necessary.
- the oxidant permeates the Sink 19 and pearls at the lead bath 3 side facing in the lead bath 3 in the form of small gas bubbles 23 a.
- the oxidizing agent on the surface of the gas bubbles 23 reacts with foreign metals present in the lead bath 3.
- a temperature of 700 0 C - 750 0 C takes place oxidation with the metals tin, arsenic and antimony.
- the largest possible reaction surface ie the largest possible number of small and “deformed” (ie non-spherical) gas bubbles 23 and the longest possible residence time of the gas bubbles 23 in the lead bath 3 is helpful, ideally the gas bubbles 23 have an ellipsoidal bubble shape and a diameter of less than 5 mm and rising in the lead bath 3 in a zigzag or helical path shape, size and orbital motion of the gas bubbles 23 are determined in particular by the inserted purging plug, which is selected accordingly for this purpose.
- the rectified to the upward movement of the gas bubbles 23 Flow of the work lead in the lead bath 23 thereby lengthens the contact time of the reactants with one another and thereby promotes the reaction
- the oxidized metals accumulate in the form of dross on the surface of the lead bath 3 and are skimmed off at the separating device 12 or fed to the lead boiler 5.
- the unreacted oxidizing agent and any inert gases admixed with the oxidizing agent are collected in a gas space 24 and removed via a gas outlet 25 or the outlet 11. This gas is then available for further utilization and, for example, can also be fed back into the oxidant supply line 20.
- the lead lead taken from the lead boiler 5 can be circulated until predetermined limits of the concentration of tin, antimony and / or arsenic are reached.
- concentration of tin, antimony and / or arsenic are reached.
- levels in the reaction vessel of, for example, 0.02-0.05 mass% Sb and / or 0.003 vol% As being maintained.
- the invention provides a refining process for lead, improved over the prior art.
- the process step customary for the refining of lead lead for the removal of tin, antimony and arsenic from the lead is substantially accelerated; the formation of dross is reduced and thus the lead slag is reduced.
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)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07822541T PL2106454T3 (pl) | 2006-12-16 | 2007-11-13 | Urządzenie i sposób obróbki surowego ołowiu |
SI200730967T SI2106454T1 (sl) | 2006-12-16 | 2007-11-13 | Naprava in postopek za obdelavo surovega svinca |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006059589A DE102006059589A1 (de) | 2006-12-16 | 2006-12-16 | Vorrichtung und Verfahren zum Behandeln von Werkblei |
PCT/EP2007/062268 WO2008074575A1 (de) | 2006-12-16 | 2007-11-13 | Vorrichtung und verfahren zum behandeln von werkblei |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2106454A1 true EP2106454A1 (de) | 2009-10-07 |
EP2106454B1 EP2106454B1 (de) | 2012-04-25 |
Family
ID=39278329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07822541A Active EP2106454B1 (de) | 2006-12-16 | 2007-11-13 | Vorrichtung und verfahren zum behandeln von werkblei |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2106454B1 (de) |
AT (1) | ATE555221T1 (de) |
DE (1) | DE102006059589A1 (de) |
ES (1) | ES2386910T3 (de) |
PL (1) | PL2106454T3 (de) |
SI (1) | SI2106454T1 (de) |
WO (1) | WO2008074575A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104593615A (zh) * | 2014-12-30 | 2015-05-06 | 河南豫光金铅股份有限公司 | 一种采用电解析出铅生产合金的装置及工艺 |
DE102015116615B4 (de) | 2015-09-30 | 2023-12-07 | Jl Goslar Gmbh | Verfahren zum Reinigen einer Bleischmelze |
CN115478170A (zh) * | 2022-09-06 | 2022-12-16 | 湖北大江环保科技股份有限公司 | 铅冶炼过程中粗氧化锡产出的工艺 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2155545A (en) * | 1935-07-13 | 1939-04-25 | American Metal Co Ltd | Removal of tin from lead containing tin and other impurities |
US2871008A (en) * | 1950-11-02 | 1959-01-27 | Air Liquide | Apparatus for gas flushing of molten metal |
GB1421793A (en) * | 1973-06-20 | 1976-01-21 | Electricity Council | Injectors for injecting gas into molten metal |
IN159763B (de) * | 1982-07-16 | 1987-06-06 | Bnf Metals Tech Centre | |
DE8906130U1 (de) * | 1989-05-18 | 1989-08-10 | Radex-Heraklith Industriebeteiligungs AG, Wien | Feuerfester keramischer Spülstein |
DE59103723D1 (de) * | 1990-09-08 | 1995-01-12 | Veitsch Radex Ag | Spülstein zum durchleiten von gasen und/oder feststoffen in die schmelze eines metallurgischen gefässes sowie verfahren zu seiner herstellung. |
DE4322782A1 (de) * | 1993-07-08 | 1995-01-12 | Messer Griesheim Gmbh | Verfahren zum Entfernen von Zinn, Arsen und Antimon aus schmelzflüssigem Blei |
DE19500266C1 (de) * | 1995-01-07 | 1996-02-22 | Metallgesellschaft Ag | Verfahren und Vorrichtung zur Trennung einer spezifisch leichteren Phase von einer spezifisch schwereren flüssigen Phase |
-
2006
- 2006-12-16 DE DE102006059589A patent/DE102006059589A1/de not_active Ceased
-
2007
- 2007-11-13 ES ES07822541T patent/ES2386910T3/es active Active
- 2007-11-13 WO PCT/EP2007/062268 patent/WO2008074575A1/de active Application Filing
- 2007-11-13 SI SI200730967T patent/SI2106454T1/sl unknown
- 2007-11-13 PL PL07822541T patent/PL2106454T3/pl unknown
- 2007-11-13 AT AT07822541T patent/ATE555221T1/de active
- 2007-11-13 EP EP07822541A patent/EP2106454B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008074575A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE555221T1 (de) | 2012-05-15 |
EP2106454B1 (de) | 2012-04-25 |
SI2106454T1 (sl) | 2012-08-31 |
WO2008074575A1 (de) | 2008-06-26 |
ES2386910T3 (es) | 2012-09-05 |
PL2106454T3 (pl) | 2012-09-28 |
DE102006059589A1 (de) | 2008-06-19 |
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