EP3049543A1 - Herstellung von hochwertigem mangan aus ferromangan mittels verdampfung in einer vakuuminduktionsanlage - Google Patents
Herstellung von hochwertigem mangan aus ferromangan mittels verdampfung in einer vakuuminduktionsanlageInfo
- Publication number
- EP3049543A1 EP3049543A1 EP14789775.5A EP14789775A EP3049543A1 EP 3049543 A1 EP3049543 A1 EP 3049543A1 EP 14789775 A EP14789775 A EP 14789775A EP 3049543 A1 EP3049543 A1 EP 3049543A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- manganese
- water cooling
- condensation chamber
- range
- evaporator
- 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
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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/04—Refining by applying a vacuum
-
- 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
- C22B47/00—Obtaining manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
Definitions
- the present invention relates to a process for the production of technically pure manganese by evaporation of carbonaceous ferromanganese in an induction vacuum vessel.
- Manganese is one of the most important alloying elements in steelmaking. It is characterized by high strength and elongation. The production of steel grades with manganese takes place by adding manganese-containing alloying agents during the steelmaking process. These include Mn alloys produced in blast furnaces or high carbon reduction furnaces such as FeMnHC (HCFeMn) and FeMnLC (LCFeMn) alloys with medium FeMnMC (MCFeMn) and low carbon content. produced in secondary metallurgical plants.
- the manganese alloys are loaded in addition to the carbon contents mentioned also with other elements such as phosphorus and sulfur, so that the application of materials can not be used indefinitely.
- Typical composition of manganese alloys in% by weight are:
- a pure manganese sulfate solution is used, which is electrolysed with stainless steel electrodes at 5 -7 V. Pure manganese is produced at the cathode and oxygen at the anode, which reacts with manganese ions to form brownstone.
- Another way of Mangan strung is to heat the above manganese compounds so far, so that the manganese evaporates.
- An object of the present invention is to provide a process for continuous manganese production by evaporation of the raw raw materials available, which is inexpensive and therefore economical.
- the plant presented in the invention and the process represents an innovative technique not only in terms of continuous manganese production but also their potting.
- the two-component system Mn-Fe represents various phases of the manganese-iron solution. As shown in the diagram below, the liquidus temperature of pure manganese is 1246 ° C.
- the liquidus temperature is in the range 1246-1280 ° C. It defines the lowest temperature at which the liquid material starts to evaporate.
- the vapor pressure as a function of the temperature has an exponentially increasing course.
- Mn-vapor pressure In order to illustrate the physical conditions of the process according to the invention, the evaporation kinetics of manganese will be described below.
- the evaporation kinetics of manganese is a function of pressure, temperature and inert gas rate.
- the evaporation process itself is carried out by phase transformation - liquid / gas (steam) at a given temperature and pressure according to the law of the first order, as represented in equation (1), dMn
- NMn Mn - volume flow in a vacuum vessel in Nm3 / min, directly proportional to the evaporation rate expressed by k (-dMn / dt),
- Equations (4) and (5) in conjunction with equation (1) give the following relation:
- Equation (6) represents the control principle based on the following quantities:
- the method provides that the liquefaction of the Mn vapors takes place continuously by means of the secondary cooler, which is arranged in the vapor stream within a vapor line and is formed in a conical shape for the purpose of improving the drop outflow.
- the vacuum pump system is additionally equipped with a secondary water cooling system, a condenser and a filter.
- the evaporation process is additionally supported with argon as the inert gas and forms a kind of protective gas atmosphere.
- the technically pure manganese is continuously cooled with water, tapped and placed under the Argon protective gas atmosphere in a casting machine, where it can be poured into the desired formats.
- the evaporation material to be evaporated may consist of various Mn concentrations, which in turn may then influence the rate of evaporation, temperature and inert gas flow rate.
- the evaporation material is charged continuously or discontinuously in the induction evaporator.
- Another object of the present invention is to provide an apparatus for carrying out the method according to the invention.
- a device in particular by an evaporator in which the manganese alloy is used, the metal under vacuum, and generated by a vacuum pump and filter system in the range of 10-900 mbar and a temperature In the range of> 1248 ° C stirring with argon is inert as a protective gas and is cooled by a primary water cooling and a secondary water cooling, the Mn vapors are collected in a mobile condensation chamber at temperatures in the range 1350-1400 ° C in the liquid state and is continuously abstechbar by a siphon-like heated tap hole in a Verg screensschieb.
- the evaporator is an induction evaporator, which is arranged on a hydraulic platform and designed to be vertically movable over it.
- the mobile condensation chamber is designed to be horizontally movable.
- the induction evaporator and the condensation chamber are gas-tightly connected to one another via a steam line operatively connected to the primary water cooling and the secondary water cooling.
- the secondary water cooling within the steam line is arranged in the vapor stream above the condensation chamber.
- the steam line is connected to a supply line for the protective gas (inert gas) and the protective gas (inert gas) is circulated in the steam line and the supply line, wherein manganese manganese can be separated by a secondary condenser assigned to the feed line and the protective gas (inert gas) via the feed line to the induction evaporator and thus the steam flow is fed back.
- additional inert gas can be supplied via the feed to the circuit in order to compensate for the process-related losses and so to be able to regulate the concentration in the circulatory system.
- additional protective gas can be introduced via a feed into the supply line, where it can be flushed back into the induction evaporator via a secondary filter.
- Fig. 1 is a schematic view of the apparatus for performing the method as a process flow model.
- the device 18 consists essentially of an induction evaporator 1, in which the FeMn introduced is kept at a temperature of 1600 - 1700 ° C in the liquid state.
- the induction evaporator 1 is arranged in this embodiment on a hydraulic platform 9, which allows it to raise and lower.
- At least one flushing pipe connection 19 is provided, which is connected to a supply line 15 and via which a protective gas, in this case argon, is introduced into the induction evaporator 1.
- a protective gas in this case argon
- the protective gas rises through the FeMn melt, where it collects with the vaporized portion of manganese at a pressure of 100 to 200 mbar in a vapor line 14 and is discharged in a vapor stream 17, shown here as arrows.
- the steam line 14 is connected in a gas-tight manner to the induction evaporator 1.
- the steam flow 17 located in the steam line 14 is conducted past a primary water cooling 4, which surrounds the steam line from the outside, and is cooled down at the same time.
- a secondary water cooling 5 the steam flow 17 is cooled down to the extent that an aggregate state change of the manganese from gaseous to liquid occurs. In order to do this as efficiently and quickly as possible, it is provided to arrange the secondary water cooling 5 within the steam line 14 and in the steam flow 17.
- the secondary water cooling 5 is conical and lies with the tapered side in the direction of the incoming vapor stream 17. In the figure, this is shown as an isosceles triangle.
- a horizontally movable condensation chamber 2 is arranged below the secondary water cooling 5, below the secondary water cooling 5, a horizontally movable condensation chamber 2 is arranged.
- the condensation chamber 2 can be connected in a gastight manner to the steam line 14.
- the liquefied high-purity manganese collects and is maintained at a temperature of 1350 to 1400 ° C in the liquid state.
- the movable condensation chamber 2 is associated with a siphon-like tap hole 13.
- the tap hole 13 the manganese is tapped and placed in a casting machine 8.
- the casting machine 8 is chambered and is also under a protective gas atmosphere 7 (argon) and is equipped with appropriate device means for applying and maintaining the protective gas atmosphere.
- the manganese is poured into a final product 11 in the appropriate desired formats.
- the final product 11 has a purity of 99.9% manganese.
- the protective gas atmosphere is drawn off via a connection 20 by means of a vacuum pump 3 and fed back into the supply line 15.
- the vaporized manganese still present in the protective gas is cooled down in a secondary condenser 12 and separated from the protective gas atmosphere.
- the secondary capacitor 12 is for this purpose a vacuum pump with water cooling 6 available.
- the inert gas purified by the manganese vapor is circulated in the supply line 15 and fed back into the induction evaporator via a feed 16 and a secondary filter 10. Via the feed 16, the circulation process returns lost protective gas to the cycle, so that a stable argon protective gas atmosphere is ensured at all times.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013016366.8A DE102013016366A1 (de) | 2013-09-25 | 2013-09-25 | Herstellung von hochwertigem Mangan aus Ferromangan mittels Verdampfung in einer Vakuuminduktionsanlage |
| PCT/DE2014/000413 WO2015043560A1 (de) | 2013-09-25 | 2014-08-14 | Herstellung von hochwertigem mangan aus ferromangan mittels verdampfung in einer vakuuminduktionsanlage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3049543A1 true EP3049543A1 (de) | 2016-08-03 |
| EP3049543B1 EP3049543B1 (de) | 2018-04-11 |
Family
ID=51798945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14789775.5A Active EP3049543B1 (de) | 2013-09-25 | 2014-08-14 | Herstellung von hochwertigem mangan aus ferromangan mittels verdampfung in einer vakuuminduktionsanlage |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3049543B1 (de) |
| KR (1) | KR102279028B1 (de) |
| BR (1) | BR112016006204A2 (de) |
| DE (1) | DE102013016366A1 (de) |
| RU (1) | RU2674178C2 (de) |
| WO (1) | WO2015043560A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018723B (zh) * | 2015-07-08 | 2017-12-19 | 湖南双创部落信息咨询服务有限责任公司 | 电解锰工艺中的化合及高效压滤装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2986461A (en) * | 1957-12-21 | 1961-05-30 | Pechiney Prod Chimiques Sa | Manufacture of refined manganese |
| US3054670A (en) * | 1960-01-23 | 1962-09-18 | Electro Chimie Metal | Process of producing manganese |
| SU1148885A1 (ru) * | 1983-11-18 | 1985-04-07 | Сибирский ордена Трудового Красного Знамени металлургический институт им.Серго Орджоникидзе | Способ выплавки металлического марганца |
| KR101064991B1 (ko) * | 2008-12-29 | 2011-09-16 | 주식회사 포스코 | 고순도 망간 제조방법 및 장치 |
| CN104040030A (zh) | 2012-01-10 | 2014-09-10 | 吉坤日矿日石金属株式会社 | 高纯度锰及其制造方法 |
-
2013
- 2013-09-25 DE DE102013016366.8A patent/DE102013016366A1/de not_active Withdrawn
-
2014
- 2014-08-14 KR KR1020167010799A patent/KR102279028B1/ko not_active Expired - Fee Related
- 2014-08-14 BR BR112016006204A patent/BR112016006204A2/pt not_active Application Discontinuation
- 2014-08-14 RU RU2016115909A patent/RU2674178C2/ru active
- 2014-08-14 EP EP14789775.5A patent/EP3049543B1/de active Active
- 2014-08-14 WO PCT/DE2014/000413 patent/WO2015043560A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| KR102279028B1 (ko) | 2021-07-19 |
| EP3049543B1 (de) | 2018-04-11 |
| DE102013016366A1 (de) | 2015-03-26 |
| BR112016006204A2 (pt) | 2017-08-01 |
| WO2015043560A1 (de) | 2015-04-02 |
| RU2016115909A3 (de) | 2018-06-25 |
| RU2674178C2 (ru) | 2018-12-05 |
| KR20160065898A (ko) | 2016-06-09 |
| RU2016115909A (ru) | 2017-10-26 |
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