EP2519377A1 - Verfahren zur verwertung von titanhaltigen nebenprodukten - Google Patents

Verfahren zur verwertung von titanhaltigen nebenprodukten

Info

Publication number
EP2519377A1
EP2519377A1 EP10798347A EP10798347A EP2519377A1 EP 2519377 A1 EP2519377 A1 EP 2519377A1 EP 10798347 A EP10798347 A EP 10798347A EP 10798347 A EP10798347 A EP 10798347A EP 2519377 A1 EP2519377 A1 EP 2519377A1
Authority
EP
European Patent Office
Prior art keywords
titanium
product
welding
additive
waste product
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Withdrawn
Application number
EP10798347A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans-Jürgen OEXL
Gerhard Auer
Horst Günnel
Michael VÖSSING
Sascha Dyschy
Norbert Merkle
Martin Offermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sachtleben Pigment GmbH
Original Assignee
Sachtleben Pigment GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sachtleben Pigment GmbH filed Critical Sachtleben Pigment GmbH
Publication of EP2519377A1 publication Critical patent/EP2519377A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0244—Powders, particles or spheres; Preforms made therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3608—Titania or titanates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/362—Selection of compositions of fluxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/365—Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/0475—Purification
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides

Definitions

  • the invention is directed to a method for producing a coating material for coating
  • Welding electrodes or for producing a welding powder, welding powder additive or flux additive which can be used in electric welding, in particular submerged arc welding.
  • the invention is directed to a process for the utilization of a titanium-containing by-product or waste product resulting from the production of titanium dioxide.
  • the invention is directed to a use of a titanium-containing by-product or waste product obtained in the production of titanium dioxide and to a welding powder additive, a welding powder
  • titanium-containing by-products In the production of titanium dioxide, in particular of titanium dioxide pigments, titanium-containing by-products usually accumulate, which are difficult to reuse and therefore are generally considered as waste product. Although it is known to further utilize these titanium-containing by-products or waste products, for example as asphalt filler, as a landfill cover or as an additive in a blast furnace, but this type of use of the titanium-containing by-product or waste product is usually not economical.
  • the invention is therefore an object of the invention to provide a solution that the recovery and the use of a resulting in the production of titanium dioxide titanium-containing By-product or waste product in an economically favorable manner allows.
  • the method according to the invention for the production of a coating material for coating welding electrodes or for producing a welding powder which can be used in electric welding, in particular submerged arc welding,
  • Welding powder additive or flux additive is characterized in that the coating material or the welding powder and / or the welding powder additive and / or the flux additive in the course of a
  • Titanium dioxide manufacturing process in particular titanium dioxide pigment production process, in a
  • the process according to the invention for utilizing a titanium-containing by-product or by-product obtained in the production of titanium dioxide is characterized in that the titanium-containing by-product or waste product is used as coating material for coating welding electrodes or as additive in a welding process, in particular a submerged-powder injection process.
  • the use of a titanium-containing by-product obtained in the production of titanium dioxide is characterized in that the titanium-containing by-product as
  • Coating material for welding electrodes or as an additive in a welding process, in particular in a submerged arc welding process, and / or as titanium oxide-containing, in particular titanium dioxide-containing, material in the production of welding powder and / or welding powder additive and / or flux additive is used.
  • the titanium-containing by-product or waste product can be used as an additive for the welding powder necessary in the welding process, as an additive for the flux or else as an additive for the coating of welding electrodes.
  • the titanium-containing by-product or waste product has a high consistency in its composition, so that it can be used particularly well as a coating material for a welding electrode or as an addition to a welding process or as an additive for a welding powder.
  • the type of titanium dioxide (T1O 2 ) occurring accompanying elements - in particular silicon (Si) and aluminum (AI) - is very well compatible with the requirements of welding.
  • the titanium-containing by-product or waste product contains titanium dioxide. Because the titanium-containing by-product or waste product contains titanium dioxide, it is possible to achieve particularly good mechanical properties, in particular high toughness at low temperatures, in particular in the weld metal to be welded by means of electro-welding. From titanium dioxide, metallic titanium can pass into the weld metal via the arc provided, for example, during submerged arc welding, which, on the one hand, can bring about the good mechanical properties of the weld metal and, on the other hand, easier removal of the starting slag during welding in a narrow weld joint. As a result, a very smooth weld bead surface can be achieved with the lowest possible defects.
  • the titanium-containing by-product or waste product preferably has a titanium dioxide content of from 10 to 70% by weight, preferably from 20 to 60% by weight.
  • the titanium dioxide content of the titanium-containing by-product or Abf ll extends for use as a coating material or as
  • Welding powder additive of a welding powder according to the invention is preferably above 10 wt .-%, in particular more than 20 wt .-%, since lower titanium dioxide contents may adversely affect the shape and surface of the weld bead, for example in the form of reduced toughness of the weld or in that the slag at the bead surface . difficult to remove.
  • the titanium-containing by-product or waste product has a sulfur content of ⁇ 2.0% by weight, preferably of ⁇ 1.0% by weight, more preferably of ⁇ 0.5% by weight preferably of ⁇ 0.2 wt .-%, particularly preferably of ⁇ 0.05 wt .-%, having. Due to the lowest possible sulfur content in the titanium-containing by-product or waste product, the properties as Coating material or as a welding powder additive of the titanium-containing by-product or waste product can be improved. The sulfur content can be reduced by chemical or thermal treatment, such as calcination.
  • the titanium-containing by-product or waste product prefferably has a silicon dioxide content (SiO 2 content) of from 0.1 to 40% by weight, preferably from 5 to 30% by weight, particularly preferably from 10 to 25 % By weight.
  • Silica serves as an acidic component for adjusting the viscosity and gives a glassy slag which gives a good appearance to the surface of the crawler.
  • the titanium-containing by-product or waste product has a chloride content of ⁇ 0.3 wt .-%, preferably of ⁇ 0.1 wt .-%, particularly preferably of ⁇ 0.02 wt .-% having ,
  • the titanium-containing by-product or waste product have a magnesium content of from 0.1 to 30% by weight, preferably from 2.0 to 20% by weight, particularly preferably from 3.0 to 8.0% by weight. -%, having.
  • the magnesium is preferably present as magnesium oxide or in the form of oxidic compounds.
  • the titanium-containing by-product or by-product has a BET surface area of 1 to 30 m 2 / g, preferably 1 to 20 m 2 / g, particularly preferably 1 to 15 m 2 / g.
  • the titanium-containing by-product or by-product contains iron titanium oxides and / or titanite (CaTiO (Si0 4 )) and / or aluminum titanium silicate.
  • a titanium-containing by-product or by-product obtained in the production of titanium dioxide by the sulphate process as a final residue is used.
  • the titanium-containing by-product or waste product can also be in the form of rutile, for example. The properties and the production process of rutile are described in DE 103 36 650 A1.
  • the Aufschluction residue arises in the production of titanium dioxide by the sulphate process, in which by digestion of ilmenite, a titanium-iron ore (TiFe0 3 ) or titanium slag with highly concentrated sulfuric acid, a digestion solution is prepared and from the digestion solution obtained by solids separation, in particular filtration, the
  • Slurry residue in the form of a solid-containing mass is obtained.
  • the final residue usually contains about 30 to 70% by weight of titanium dioxide and, in addition, magnesium and / or aluminum and / or iron and / or calcium (mainly in the form of titanates).
  • the titanium dioxide is present in the final residue at least 50 wt .-%, more preferably at least 90 wt .-%, in rutile form. These values refer only to the total amount of rutile and anatase, ignoring other crystal modifications and X-ray amorphous constituents.
  • the tailings residue preferably contains both
  • Magnesium titanate e.g. in the form of MgTi2Ü5 and / or
  • the digestion residue preferably contains iron oxides or
  • Iron titanium oxides preferably in an amount of 0.5-30% by weight, more preferably in an amount of 2-15% by weight, calculated as Fe 2 O 3 .
  • the digestion residue preferably has an aluminum content, preferably as Al 2 O 3 , of 0.5-20 wt. %, preferably from 1 to 10 parts by weight, and a silicon content, preferably as Si0 2 , from 5 to 40 wt .-%, preferably from 15 to 35 wt .-%, on.
  • the AufBankstandes obtained preferably in the form of a filter cake, whereby a finely divided solid is usually obtained.
  • the recovery is preferably carried out in the form that the filter cake, a base is added as a neutralizing agent until a pH of 5 to 12 is set.
  • a low-sulphate, neutralized, finely divided material is obtained.
  • the washing of the filter cake primarily obtained by means of known per se filtration units, such as. B. a vacuum rotary filter or a chamber or membrane filter press.
  • the washed bottoms residue obtained in this way contains a small amount of sulphates. It is also possible that the neutralization of the filter cake without renewed marching takes place directly in or on the Filtrieraggregat by the filter cake is washed with an aqueous solution of the neutralizing agent.
  • Neutralizing agents are all common alkaline compounds, eg. As solid or dissolved alkali or alkaline earth metal hydroxides. Ammonium compounds as
  • Neutralizing agents may be particularly advantageous because in this way anions such as sulfates or chlorides can be partially or completely removed by subsequent calcination.
  • the titanium concentrate thus obtained is dried. Drying may be carried out by any method and apparatus known to the person skilled in the art, for example in a drying cabinet, with a belt dryer, spray dryer or a spin flash dryer. However, it may also be advantageous not to dry the filter cake, but to add other additives, optionally supported by further addition of water, for the welding powder or the welding powder additive are advantageous, for example, Ca and Al-containing compounds, metal powder, lime or fluorides, such as CaF 2 .
  • at least 90% of the slurry residue particles have a diameter of less than 90 microns.
  • a particularly preferred final residue is the filler described in DE 197 25 021 A1.
  • a titanium-containing by-product or waste product obtained in the production of titanium dioxide after the chloride process is used after the chlorination process, the chlorination process being a step or step of the chloride process.
  • the chloride process enriched titanium ore or rutile is reacted with coke in a particularly chlorine-resistant fluidized bed furnace at about 1000 ° C with chlorine gas and the oxygen-containing gases from the TiCl 4 - combustion.
  • the chlorine reacts with the titanium oxide of the ore and the introduced carbon to form gaseous titanium tetrachloride and carbon dioxide.
  • the main components of the reactor bed are the titanium-containing raw material, coke (petroleum coke) and Si0 2 , which accumulates over time in the reactor bed on and on, so regularly a portion of the reactor bed must be removed from the reactor.
  • residues occur in the form of titanium-containing by-products which, owing to their composition, can be used particularly well as an additive for a coating material for coating a welding electrode or as welding powder or welding powder additive.
  • the finely divided solids discharged from the chlorinating furnace mainly TiO 2 , SiO 2 and coke
  • TiCl 4 and the other metal chlorides can be supplied for use as an additive during welding. Preference is given to a wash to remove the soluble metal chlorides.
  • the costs incurred in the chloride process, in particular hydroxide, neutralization products of the metal chlorides are used as an additive in welding, since they may still contain significant amounts of titanium (Ti) as an impurity.
  • a thermal treatment is preferably carried out in order to convert the hydroxides into oxides.
  • the titanium-containing by-product or waste product of soluble anions mainly sulfate and chloride, obtained in the sulphate process or in the chlorination process is at least partially freed by washing.
  • the soluble anions obtained in the sulphate process or in the chlorination process can be neutralized with ammonia in the titanium-containing by-product or by-product and the resulting ammonium salts are thermally driven off.
  • alkaline materials which themselves are also used as an additive for welding powder. Examples of these are MgO, MgC0 3 , Mg (0H 2 ), water glass and similar compounds which are alkaline and do not form sparingly soluble sulfates or chlorides.
  • the washing out of the soluble anions is preferably carried out following a filtration process carried out by washing with an alkaline solution.
  • an alkaline solution magnesium compounds such as MgO, Mg (OH) 2 or MgC0 3 are preferably used.
  • water glass it is also possible to use water glass as the alkaline solution.
  • the titanium-containing by-product or waste product Prior to use as a coating material for welding electrodes or as an additive in a welding process or before or during manufacture as a welding powder or welding powder additive or flux additive, the titanium-containing by-product or waste product is preferably calcined.
  • Coating material for welding electrodes or as an additive in a welding process or before or during production as welding powder or welding powder additive or as flux additive it may alternatively be provided that the titanium-containing by-product or waste product prior to use as a coating material for welding electrodes or as an additive in a welding process or before or in the production as welding powder or
  • Welding powder additive or flux additive is mixed with mineral additives.
  • the titanium-containing by-product or waste product preferably before use as a coating material for welding electrodes or as an additive in a welding process or before or during production as welding powder or
  • Welding powder additive or as a flux additive with an ilmenite, a titanium slag and / or a ferrous fission product is mixed. This makes it possible to increase the iron content in the titanium-containing by-product or waste product. This is particularly advantageous if the titanium-containing by-product or waste product is used to produce the welding powder or welding powder additive to be used for the welding process.
  • the invention relates to a welding powder additive, which is prepared by a process as outlined above and further developed from a titanium-containing by-product or waste product. That in the
  • the titanium-containing by-product or waste product contained in the welding powder additive preferably contains iron titanium oxides and / or titanite (CaTiO (SiO 2)) and / or aluminum silicate and is preferably a final residue from the acidic position after the sulphate process or a chlorination at a process step
  • Titanium dioxide production
  • the titanium-containing by-product or waste product has a mass fraction in the welding powder additive of from 5 to 100% by weight, preferably from 10 to 60% by weight, particularly preferably from 10 to 30% by weight.
  • titanium oxide hydrate is contained in the welding powder additive.
  • the invention relates to a welding powder comprising a trained and niege workedes as above
  • the invention relates to a coating material for welding electrodes, which is prepared according to a process as outlined above and further developed from a titanium-containing by-product or waste product.
  • the titanium-containing by-product or waste product contained in the coating material preferably contains iron titanium oxides and / or titanite (CaTiO (Si0 4 )) and / or aluminum silicate and is preferably a final residue from titanium dioxide production by the sulphate process or a chlorination step in a process
  • Titanium dioxide production
  • the titanium-containing by-product or waste product has a mass fraction in the coating material of 5 to 100 wt.%, Preferably 10 to 60 wt.%, Particularly preferably 10 to 30 wt.
  • titanium oxide is contained in the coating material.
  • CaO 3 wt .-% CaO is mixed with conventional CaO, A1 2 0 3 -, Si0 2 - and CaF 2 -containing materials so that a weight ratio Ti0 2 : CaO: Al 2 0 3 : Si0 2 : CaF 2 from 23: 16: 11: 32: 11 results.
  • the mixture thus obtained gives a welding powder with low viscosity, good wetting behavior and a good stability of the arc.
  • Other additives such as alkali compounds or metals can be added depending on the desired specific properties of the welding powder.
  • said material is mixed with conventional CaO, A1 2 0 3 -, Si0 2 - and CaF 2 -containing materials so that a weight ratio Ti0 2 : CaO: A1 2 0 3 : Si0 2 : CaF 2 of 23: 16: 11: 32: 11.
  • the mixture thus obtained gives a welding powder with low viscosity, good wetting behavior and a good stability of the arc.
  • Other additives such as alkali compounds or metals can be added depending on the desired specific properties of the welding powder.
  • the material thus obtained is dried in a drying oven, with the resulting pretreated digestion residue with

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP10798347A 2009-12-28 2010-12-27 Verfahren zur verwertung von titanhaltigen nebenprodukten Withdrawn EP2519377A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009060821A DE102009060821A1 (de) 2009-12-28 2009-12-28 Verfahren zur Verwertung von titanhaltigen Nebenprodukten
PCT/EP2010/070766 WO2011080253A1 (de) 2009-12-28 2010-12-27 Verfahren zur verwertung von titanhaltigen nebenprodukten

Publications (1)

Publication Number Publication Date
EP2519377A1 true EP2519377A1 (de) 2012-11-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10798347A Withdrawn EP2519377A1 (de) 2009-12-28 2010-12-27 Verfahren zur verwertung von titanhaltigen nebenprodukten

Country Status (8)

Country Link
US (1) US20120298647A1 (ru)
EP (1) EP2519377A1 (ru)
JP (1) JP2013515617A (ru)
KR (1) KR20120112675A (ru)
CN (1) CN102753301A (ru)
DE (1) DE102009060821A1 (ru)
RU (1) RU2012131097A (ru)
WO (1) WO2011080253A1 (ru)

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CN102139424A (zh) * 2011-03-21 2011-08-03 北京工业大学 一种焊渣可循环利用的气保护药芯焊丝
EP2941489A1 (de) * 2013-01-07 2015-11-11 Sachtleben Chemie GmbH Titanhaltiger zuschlagsstoff, verfahren zu dessen herstellung und dessen verwendung
WO2014198261A1 (de) * 2013-06-10 2014-12-18 Sachtleben Chemie Gmbh Zuschlagsstoff für metallurgische verfahren, verfahren zu dessen herstellung und dessen verwendung in metallurgischen schmelzen
EP3208239A1 (de) * 2016-02-17 2017-08-23 Kronos International, Inc. Verwendung von ilmenitsand als mineralischer zusatzstoff in der land- und forstwirtschaft
CN106915748B (zh) * 2017-03-07 2019-04-16 安徽升鸿电子有限公司 一种焊接添加剂钛酸硅钠的制备方法
CN110817944B (zh) * 2019-11-06 2022-05-03 北京华电光大环境股份有限公司 一种废弃scr脱硝催化剂的回收方法
CA3187629A1 (en) * 2020-08-20 2022-02-24 Johannes Pradler Air purification unit and method for coating an electrode of an air purification unit

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WO2011080253A1 (de) 2011-07-07
CN102753301A (zh) 2012-10-24
US20120298647A1 (en) 2012-11-29
RU2012131097A (ru) 2014-02-20
KR20120112675A (ko) 2012-10-11
JP2013515617A (ja) 2013-05-09

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