WO2014198261A1 - Aggregate for metallurgical processes, method for the production and use thereof in metallurgical melts - Google Patents

Abstract

The present invention relates to an aggregate for metallurgical processes, a method for the production and use thereof in metallurgical melts, for increasing the durability of various refractory systems, and for improving desulphurisation processes, deoxidation processes and alloying processes.

Description

 Additive for metallurgical processes, process for its preparation and its use in metallurgical melts

The present invention relates to an aggregate for metallurgical

Process, process for its preparation and its use in

metallurgical melts

In the iron and steel industry and in the non-ferrous metallurgy are naturally alloying agents from various sources, qualities and

Manufacturing process used to the respective by the consumer

desired quality characteristics.

In this case, in the treatment of molten metals, such. For example, iron and steel in the primary metallurgy phase, often added to agents containing e.g.

Reduce oxygen and / or sulfur levels. Moreover, by incorporating various alloying agents into the melts in the field of secondary and tertiary metallurgy, the material properties, e.g. Hardness, corrosion resistance, strength and the like improved.

In this context, it is very complicated for the metallurgists that very many of these different alloying agents are needed to meet the modern requirements

Technically realizing quality requirements on the part of the end user. As modern metal alloys are becoming increasingly popular

complicated alloy combinations, often even those with contents in the ppm range, the secondary metallurgy is very heavily burdened with energy, time and wear-intensive processes.

The metallurgists are burdened not only by the very time-consuming, lengthy treatments in the field of primary and secondary metallurgy, but also by the subsequent very high costs resulting from the elimination of

Wear phenomena in the refractory range of melting units such as blast furnaces, cupola furnaces or similar systems, as well as in primary and secondary metallurgy plants, such as wear of injection lances - -

Vacuum units, e.g. Proboscis of RH plants, slagging zones of

Steel pans and similar aggregates.

Another aggravating factor is the global market structure of the raw material market, which is heavily burdened by the international capital market. Nowadays, manufacturers can only calculate and control the profitability of their metallurgical processes at very short notice.

Of particular interest in this context is greater sustainability in the sourcing of inexpensive raw materials for the shelf-life enhancing additives, e.g. in blast furnaces and various

Melting aggregates and the alloying side of primary, secondary and tertiary metallurgy worldwide.

For this reason, the development of new, less expensive, as well as energy - saving process technologies is required, which is the dependence on capital market rates and resources on the commodity -, and / or

Reduce alloy market.

Because of the lengthy treatment times of high quality modern

In addition, the requirements for wear protection of various refractory components used in metallurgy have increased enormously.

For this reason, various methods have been developed in the past to increase the durability of the various components by incorporating synthetic and natural titanium carriers in these metallurgical systems.

Depending on the system, these incorporated titanium carriers form highly refractory titanium compounds in the region of the respective liquid phases, such as TiC, TiNN and TiCN compounds. The fire resistance of these compounds is usually over 2500 ° C. - -

The introduction of these titanium support in the metallurgical systems is usually about the blowing of the same by means of a blowing-in and / or on the introduction of these titanium support as a shaped body, which are then fed to the metallurgical system as needed.

Another effect of the amounts of titanium introduced into metallurgical systems is the setting of dissolved nitrogen and carbon in liquid metals and influencing the solidification structure of the respective crystals. It has been proven that the precipitation of fine-grained titanium compounds, such as titanium nitrides, the grain growth of z. B. iron is braked and the number of iron crystals is increased. The consequences of this are a number of improved mechanical properties of microalloyed steel grades.

In blast furnaces have long been synthetic or natural titanium support in the form of Stückilmenit and / or moldings as briquettes, pellets and / or

Sintered body fed via the gout the blast furnaces. There, in the course of the metallurgical processes, they are to form TiC, TiN and TiCN compounds which, by depositing on the furnace walls, slow down or completely prevent the wear mechanisms.

In addition, various fine-grained titanium carriers are injected directly by means of a special injection unit or in mixture with reducing carbon in the blast furnace to protect the Ofenausmauerungen.

By blowing fine-grained titanium supports in electric furnace over the

Slag foaming injection system also produces TiC, TiN and TiCN compounds which reduce wear on the electrodes as well as the refractory lining.

It is also known that TiC, TiN and TiCN compounds are formed by incorporation of synthetic and / or natural titanium supports in components made of carbon or graphite within the component, which are then the

Extend service life of the components. - -

By adding synthetic and / or natural titanium supports to conventional refractory systems (e.g., taphole or concrete), formation of TiC, TiN, and TiCN bonds also becomes apparent

Increased durability.

In the production of special grades of steel z. B. used in the secondary metallurgy as alloying agent ferrotitanium, ferrocarbotitanium, titanium-aluminum or titanium metal. These alloying agents are produced very expensive and are therefore very expensive for end users.

The addition of the abovementioned alloying agents to the liquid molten iron initially results in the dissolution of metallic titanium, which then forms the titanium compounds such as TiN, TiC and TiCN there with the remaining nitrogen and carbon.

Moreover, even in the liquid phase, the carbon and nitrogen atoms which are undesirable in the later Fe crystal lattice are removed by the formation of TiC, TiN, TiCN.

In this procedure, a significant proportion of titanium used with the resulting slag from the process is removed unused.

The employed alloying agents such as ferrotitanium, ferrocarbotitanium and titanium-aluminum generally contain, depending on the product quality and field of application, mainly from 20 to 75% by weight of Ti, from 2 to 10% by weight of Al + Al ₂ O ₃ , of 0 , 2 to 8 wt% or more Si, and from 20 to 65 wt% or more Fe. A ferrocarbotitanium may, for example, have the following composition of the main constituents: Ti: 30 to 40% by weight; C: 5 to 8% by weight; Si: 3 to 4% by weight; Al: 1 to 2% by weight; Mn: 0.5 wt .-%, balance to 100 wt .-% iron. - -

The main reason for the use of titanium in modern steels is the stabilization of austenitic chromium-nickel steels against cracking and increasing the resistance to frictional wear.

Due to the often very long-lasting processes in the secondary metallurgy (up to more than 2 hours), the slag zones of the pans or vessels are very heavily stressed by the slag thermodynamics and kinetics. Early closures and costly repairs of pans and / or other refractory components are required.

Recently, natural finely divided titanium dioxide-containing raw materials such as rutile sand are injected into the melt or charged by the corresponding equipment as a powder to reduce this leading wear ßprozesses.

There is a disadvantage in that a large part of the introduced titanium dioxide is lost again unused on the slag from the reaction vessel. In addition to the loss of valuable titanium, depending on the application, disadvantages may also arise in the utilization of the slags.

This high loss of valuable titanium when using titanium dioxide-containing raw materials is reinforced by the high melting point (> 1650 ° C) of titanium dioxide,

It is therefore an object of the invention to replace the above-mentioned uneconomical alloying agent by lower-cost products, and to provide methods with higher efficiency and less effort. As a result, the profitability of steel production can be significantly improved.

The object of the invention is achieved by providing an aggregate containing synthetic and / or natural titanium-containing materials containing titanium-oxygen compounds, and to deoxidizers and optionally other ingredients such as fluxes, slag formers; - -

Desulfurization are enriched, which allow an extremely fast and efficient alloying of iron melt with titanium.

In addition, the use of these titanium-containing additives gives the metallurgical systems the opportunity to both bind off the nitrogen and / or carbon dissolved in the melts, as well as to form various high-refractory spinels. In addition, if necessary, the

Solidification structure of the metals in the sense of modern microalloys can be improved. In addition, the durability of the refractory linings and the improvement of the slag quality are of great importance.

The invention thus relates to an aggregate for metallurgical processes, characterized by a content of titanium-oxygen compounds-containing materials as titanium carriers and a content of deoxidizer and / or desulfurizing agent.

Preferably, the content of titanium-containing material and the content of

Deoxidizer stoichiometrically coordinated so that the amount of deoxidizer sufficient in the titanium-containing material existing titanium-oxygen compounds in the metallurgical process to reduce more than 55% to titanium.

The deoxidizer is preferably selected from the group consisting of calcium, calcium carbide, calcium compounds, CaMg, boron carbide, CaSi,

Magnesium, aluminum, manganese, silicon, sodium, cerium, mixtures of several thereof or alloys such as CaSiMn, CaSiAl, CaSiMg, MgSi, ZrSiAl, or

Mixtures of it exists.

The additive according to the invention has in particular a content

titanium-containing material of 20 to 95 wt .-% and a content of

Deoxidizer from 5 to 80 wt .-%, each based on the total weight of the aggregate. The weight percentages refer to the - -

Description of the invention to a dried at 105 ° C to constant weight under normal pressure and atmosphere material.

The titanium-containing material may be selected especially from synthetic or natural titanium dioxide-containing materials or mixtures thereof, which are 20 to 100 wt .-%, preferably 30 to 100 wt .-% and particularly preferably 40 to 100 wt.%. TiO2, calculated from the total titanium content, included.

The aggregate may have a content of a further additive selected from fluxes and slag formers individually or mixtures of at least two of these materials, preferably in an amount of 1 to 70 wt .-% based on the total weight of the aggregate.

The aggregate for metallurgical processes is the content of

titanium-containing material and the content of deoxidizer in one

Embodiment preferably stoichiometrically coordinated so that the amount of deoxidizer is sufficient to stoichiometrically reduce the present in the titanium-containing material titanium dioxide in the metallurgical process to more than 55%, especially more than 65% and especially more than 75% to titanium.

The invention relates to the use of synthetic and / or natural raw material resources based on titanium mainly from the chemical industry, as well as the use of existing secondary raw materials for the development of more economical aggregates in the field of

Blast furnaces / cupolas and similar aggregates, as well as for the primary, secondary and / or tertiary area of steel production.

Thus, special titaniferous aggregates having different compositions can be provided for the respective applications as required. - -

These additives according to the invention with defined

Composition can be inexpensively supplied to the respective request points via appropriately adapted addition process.

The invention also relates to the feeding of these specially prepared titanium-containing additives in metallurgical devices, in particular by means of cored wires.

Furthermore, the invention relates to the method of introducing these specially prepared titanium-containing additives in powder form or as agglomerates and / or granules in the metal or steel melts.

The invention further relates to these titanium-containing invention

Aggregates containing as deoxidation and / or

Desulfurizing as a shaped body such as briquettes, pellets or pellets introduce into the metal or steel melts.

In addition, the use of these titanium-containing additives according to the invention gives the metallurgical systems the opportunity to bind both the nitrogen and / or carbon dissolved in the melts, as well as various high-refractory titanium compounds, e.g. as spinels or TiC, TiCN or TiN. In parallel, the solidification structure of the metals can be improved in terms of modern microalloys and an increase in the durability of the refractory linings and a

Improvement of slag quality can be achieved.

The invention also relates to a novel method of using an aggregate containing synthetic and / or natural titanium carriers and optionally containing fluxes with deoxidizer and / or desulfurizing agent to permit extremely rapid and efficient alloying of the molten iron with titanium enable.

When used in the context of the invention of titanium-containing, titanium or titanium dioxide-containing or titanium-oxygen materials, these terms are used - - Synonymous used and mean titanium-containing compounds, the titanium-oxygen compounds of natural or synthetic origin, ie also synthetic titanium-oxygen compounds or residues or by-products

industrial production processes, such as titanium dioxide, or consist of these. Examples of natural or synthetic titanium-containing

Connections are mentioned and explained later in the description.

The deoxidizing and / or desulphurising agents used here for producing these titanium-oxygen compound-containing materials according to the invention as additives are compounds or elements which have a higher affinity for oxygen or sulfur than iron. According to the invention, calcium, calcium carbide, calcium compounds in general, magnesium, aluminum, silicon, sodium, cerium, and others can preferably be used here. In addition, metal mixtures or alloys such as CaSiMn, CaSiAl, CaSiMg, MgSi, ZrSiAl u.a. be used in mixtures or individually. All the above compounds or elements may be used singly or in mixture.

Furthermore, the titanium-containing additives may also contain carbon or carbon-containing materials in addition to the deoxidation and / or desulfurization.

When serving as a deoxidizer manganese, can be used as a reaction product

Manganese oxide (MnO) in the slag go over. More suitable according to the invention are deoxidizing additives such as silicon, calcium, magnesium, calcium silicon, calcium carbide, boron carbide, silicon-calcium-manganese or aluminum, in particular in the form of special iron, manganese and silicon-containing aluminum alloys. According to the invention can be used as deoxidizing those which have a higher affinity for oxygen than titanium under the conditions of the metallurgical process and thus among the prevailing in the process

Conditions reduce the titanium-oxygen compound to metallic titanium. - -

As a metallurgical process in which the additive according to the invention can be used, the pig iron production in the

Blast furnace or cupola furnace, primary metallurgy, alloy process in the

Secondary metallurgy and / or the tertiary phase during casting of the

metallurgical end product called.

According to the invention, the aggregate of synthetic and / or natural titanium carriers may contain, in addition to deoxidizing and / or desulphurising agents, one or more optional fluxes and further additives such as slag formers.

The invention thus also has the object of enabling the introduction of these titanium-containing additives according to the invention into metallurgical melts both as powders, granules, agglomerates and shaped bodies such as briquettes, compacts or pellets, as well as via filler wire systems.

The introduction of this additive according to the invention has the goal to optimize the metallurgical manufacturing processes both in the suitability as an alloying agent, as well as a wear-reducing feedstock.

This embodiment of the invention is directed to that in

Alloy provides alloying agent, which is both the part of the

Alloy requirements desired introduction of titanium allows, and at the same time includes as many of the other alloying agents and beyond can act as deoxidizing and / or desulfurizing. Thus it can be achieved that by adding once this titanium-containing

Additive to the melts to be alloyed relatively accurately

desired final composition with very little effort and therefore can therefore achieve relatively clear economic benefits.

The then still possibly existing deviations, which lead to the necessary fine corrections are compensated by the titanium-containing additive according to the invention. This additive thus fulfills both - - The functions of adjusting the iron alloy to the desired

Composition, as well as the necessary reduction of unwanted accompanying substances. A significant improvement in cost-effectiveness is the result.

In addition to the already established methods for the injection of powdered titanium carriers according to the invention, the analytically adjusted and blended for this purpose produced titanium-containing additives in terms of the melt systems both as powder, granules, agglomerates, shaped bodies such as briquettes, pellets, sinter, each dry as well as moist with a Water content can be up to 30 wt .-%, as well as added via specially adapted Fülldrahtsysteme or Fülldrahtmengen the respective liquid metals or slags.

The qualitative adaptation of the Fülldrahtsysteme can in advance on various premixes of titanium-oxygen. Compound, deoxidizer and other additives such as flux, slag, desulfurization and other done, which are then added to the cored wire or filling tape (or filled metal cans or containers) during its production. Depending on the requirements of the recorded metallurgical analyzes of the melting process, the decision maker from the various cored wire analyzes can choose the most suitable one.

For a rapid reduction of the titanium-oxygen compound, such as titanium dioxide to titanium metal in the molten metal, it is necessary that the deoxidizers have a higher affinity for oxygen than titanium. Depending on the deoxidizer used herein, the reduction to titanium may be autothermal, i. run without additional energy. When introducing adapted and specially prepared titanium-containing additives in metal melts, the reduction begins immediately, as determined by the prevailing in the melt high

Temperatures the reaction is triggered (initial ignition). A

chain reaction-like subsequent reaction is thereby started. - -

The deoxidizers according to the invention, which can also serve as desulfurizing agents, are compounds or elements which have a higher affinity for oxygen or sulfur than iron. As mentioned, calcium, calcium carbide, calcium compounds, as well as quicklime (CaO), boron carbide, CaMg, CaSi, magnesium, sodium, cerium, Al, etc., may preferably be used individually or in mixture. In addition, mixtures or alloys of metals such as CaSiMn, CaSiAl, CaSiMg, MgSi, ZrSiAl and the like can also be used individually. The desulfurizing agents may thus be the same agents as the aforementioned deoxidizing agents. Thus, the additive according to the invention can serve simultaneously as a reducing agent as well as for the removal of sulfur from sulfur compounds in the metallurgical melt. In addition, as the desulfurizing agent may be oxides of alkali metals or alkaline earth metals or mixtures thereof.

Furthermore, the additives according to the invention may, as mentioned above, still contain flux. The flux used are preferably alkali metals, alkaline earth metals and / or compounds thereof, such as fluorides such as CaF ₂ , SiO ₂ , silicates and the like.

In addition, the additives according to the invention may also contain slag formers, preferably lime, dolomite, calcium aluminate, olivine, bauxite, andalusite, magnesite, calcium silicate, calcium aluminum silicate. Both natural and synthetic slag formers can be used as slag formers.

The aggregates of the present invention containing titanium-containing compounds may also contain Cr, Ni, Mo, Co, V, W, and other or any combinations of these elements, as appropriate to the alloying settings.

The materials containing titanium-oxygen compound synthetic materials may be selected from the following materials or mixtures thereof: - -

Intermediates, domes, by-products and / or finished products from the production of titanium dioxide. The materials can originate from the production of titanium dioxide after the sulphate as well as from the production of titanium dioxide by the chloride process. The intermediate and co-products can be branched off from the ongoing TiO ₂ production.

Residues from the production of titanium dioxide. The materials can originate both from the production of titanium dioxide after the sulphate (digestion residues) and from the production of titanium dioxide by the chloride process and can contain not only TiO _{2 but} also carbon and SiO ₂ as main constituents; If necessary, the materials are pretreated before use for the production of the additive, for example by washing, partial neutralization, neutralization and / or predrying and other optional measures for conditioning.

 It is also possible that as synthetic titanium-containing materials, residues or residues from the chemical industry, the paper industry or from the metal extraction, such as. Sorel slag, rutile slag, can be used from the titanium extraction.

Also within the scope of the invention are titanium-containing catalysts and / or spent titanium-containing catalysts such as e.g. DENOX catalysts or Claus catalysts, catalysts for polymer production such as PET etc.

be used.

Furthermore, materials such as natural titanium support, such as. B llmenit, llmenitsand and / or Rutilsand be used as titanium-containing materials.

The synthetic and / or natural titanium-containing materials used as alloying agent for the production of the additive according to the invention generally contain about 20 to 100 wt .-%, preferably 30 to 100 wt .-% TiO ₂ (calculated from the total titanium content) and particularly preferably 40 to 100% by weight. - -

To prepare the powdery aggregates, the starting materials are mixed thoroughly in a mixer. For this purpose, for. B. the titanium-containing raw materials in a mixer (for example, compulsory mixer), submitted and depending on the application and the desired composition with appropriate amount of

Intensely mixed deoxidizers and / or fluxes and / or slag formers and / or desulfurizing. The mixtures can be used as needed as a wet product with a water content of up to 30% by weight as needed. The mixture can also be dried as needed and then ground into a mill if necessary. This powdery aggregate with the content of titanium-oxygen compound (s) and deoxidizer can be blown or added directly into the molten metal, or agglomerated, granulated, pelletized, pressed or briquetted prior to use and then added to the molten metal , For the production of such moldings, inorganic and / or organic binders can be used as needed and, depending on the requirements, can be added thermally

Temperatures between 100 to 1200 ° C are treated.

The raw materials can also be intensively mixed with one another as filter-moist cakes or with the addition of water, which are then subsequently dried and optionally ground or directly agglomerated, granulated, briquetted, and then dried or in an oven at higher temperatures up to 1200 ° C. be treated. It should be noted that the treatment temperature is below the melting point of the additives.

Depending on the composition and application, the aggregate may also be subjected to a temperature treatment, or preferably to a drying, particularly preferably also to a thermal treatment

Temperatures between 100 and 1200 ° C, but below the

Melting point of the specially prepared mixture.

The aggregate according to the invention may have, for example, the following compositions: - -

1) a) 30 to 95% by weight of TiO ₂ (calculated from the total titanium content),

 b) 5 to 70 wt .-% deoxidizer such as AI.

2) a) 30 to 95% by weight of TiO ₂ (calculated from the total titanium content),

 b) 10 to 60 wt .-% deoxidizer such as AI, and in addition

 c) 3 to 15% by weight of Mg

3) a) 30 to 95% by weight of TiO ₂ (calculated from the total titanium content),

b) 20 to 70% by weight of CaC ₂

Accordingly, other additives of any composition can be prepared depending on the application and requirement. For all data given in the context of the invention in wt .-%, the values of the individual components add up to 100 wt .-% of the aggregate.

The invention thus also relates to the production and use of

metallic containers such as cored wires, fillers, metal containers such as

Metal cans containing a filling of inventive additive. Such a filler wire is for example a filled tube wire. In this case, the envelope of the filler wire may be made of a metal such as steel or aluminum or similar metals or alloys. It is preferably a metal which can act as a deoxidizer with respect to the titanium-oxygen compounds. Thus, it is possible according to the invention, the metallic container with a mixture of titanium-containing material and deoxidizer (s) and

optionally to fill further ingredients such as desulfurizing agent, flux, slag forming agent as an additive, and / or to use the deoxidizer as part of the container metal. Are metallic containers such as cored wires, filling tapes, metal containers such as metal cans, which themselves as

Deoxidizer against titanium oxygen compounds act, so they can with titanium-containing material without admixing a

Be filled deoxidizer. - -

An essential aspect of the invention is therefore also to insert synthetic and / or natural titanium support together with a deoxidizer and other required additives in a conventional flux-cored wire and then the same at the specifically desired locations in the metallurgical

Device to supply the liquid melts to the local there

To reduce wear mechanisms in the refractory components.

So it is possible in this way the melt depending on the analytical

Purpose to enrich with any chemical compounds by adjusting the Einspulzeit and amount to adjust the desired titanium levels of slag or alloys.

In addition, the effectiveness of the protective effect can be continuously controlled by means of various measurement and control techniques.

For various metallurgical processes of the invention

Additive, in particular in the form of a filler wire, are used.

Thus, e.g. in the blast furnace area, the respective blow molds, through which the cored wires can be fed to the furnace interior, according to the wear pattern, which results from the built-in furnace walls temperature measuring devices (thermocouples), precisely defined.

In slag foaming in an electric furnace, the cored wire filled with synthetic and / or natural titanium supports is introduced through the furnace openings into the slag / steel system. The powdered content of the cored wires accumulates in the melts and forms the desired TiC, TiN and TiCN compounds, which are intended to protect the electrodes or the refractory lining of the electric furnace.

By introducing synthetic and / or natural titanium carriers by means of cored wires into the slag area of e.g. Pans, vacuum systems,

Desulphurisation plants and / or tundishes in the area of primary, secondary - - And tertiary metallurgy selbige can be enriched with elements that lead to the excretion of highly refractory titanium compounds due to the local thermodynamic conditions.

These titanium compounds may be added as needed e.g. the casting time of

Significantly extending continuous casting without having to change the tundish, and / or increasing the shelf life of steel pans through longer shelf life in the slag zone by excretion of these high refractory titanium compounds.

The same applies to the reduction of the wear zones (slag zones) of refractory components of the respective vacuum systems, and / or

Desulphurisation lances etc.

The solidification structure of iron may be enhanced by incorporation of synthetic and / or natural titanium supports, i.a. Be controlled in a controlled manner by means of filler wires in the process by setting off amounts of nitrogen dissolved in the iron. Using conventional flux-cored wire technology, a cored wire filled with titanium dioxide compounds is fed into the melt-filled melting unit. The wire dissolves in the melt, and the contents are distributed in the desired liquid range. The titanium supports, which have also been dissolved in the meantime, develop their effect in that the composition and crystal structure of the respective metals during the solidification process fulfill the wishes of the

End user is adjusted.

By means of the Füllwrahttechnologie invention, the entire process can be easily controlled and controlled.

Claims

claims 1 . Aggregate for metallurgical processes, characterized by a content of titanium-oxygen compounds-containing material and a content of deoxidizer. 2. Aggregate for metallurgical processes, characterized by a content of titanium-oxygen compounds-containing material and a content of desulfurizing agent. 3. Aggregate for metallurgical processes, characterized by a content of titanium-oxygen compounds-containing material, a content of deoxidizer and a content of desulfurizing agent. 4. The additive for metallurgical process according to any one of the preceding claims, wherein the content of titanium-oxygen compounds-containing material and the content of deoxidizer stoichiometrically so  are matched to one another that the amount of deoxidizer is sufficient, in the titanium-oxygen compounds-containing material existing titanium-oxygen compounds in the metallurgical  Method to reduce more than 55% to titanium. A metallurgical aggregate according to any one of the preceding claims wherein the deoxidizer is preferably selected from the group consisting of calcium, calcium carbide, calcium compounds, CaMg, boron carbide, CaSi, magnesium, aluminum, manganese, silicon, sodium, cerium, mixtures more of them, or alloys such as CaSiMn, CaSiAl, CaSiMg, MgSi, ZrSiAl, or mixtures thereof. 6. An additive for metallurgical processes according to any one of the preceding claims, with a content of titanium-oxygen compounds-containing material of 20 to 95 wt .-% and a content of deoxidizer and / or desulphurising agent from 5 to 80 wt .-%, each based on the total weight of the aggregate. A metallurgical aggregate according to any one of the preceding claims, wherein the titanium-oxygen compound-containing material is selected from synthetic or natural titanium-oxygen compound-containing materials or mixtures thereof containing from 20 to 100% by weight, preferably 30 to 100 wt .-% and particularly preferably 40 to 100 wt.%. TiO ₂ , calculated from the total titanium content, included. 8. Aggregate for metallurgical processes according to one of the preceding claims, characterized by a content of a further additive selected from fluxes, slag formers, desulphurising agents individually or mixtures of at least two of these materials,  preferably in an amount of 1 to 70 wt .-% based on the  Total weight of the aggregate. 9. Aggregate for metallurgical processes according to one of the preceding claims in the form of powder, agglomerate, granules or mixtures thereof. 10. Aggregate for metallurgical processes according to one of the preceding claims in the form of agglomerated bricks, briquettes, pellets, briquettes or flux cored wire. 1 1. A metallurgical process additive according to any one of the preceding claims in the form of a metallic container, such as cored wire, containing titanium-oxygen-containing material, the  Deoxidizer and / or desulfurizing agent is the envelope of the metallic container or a component thereof. 12. A process for the production of an aggregate for metallurgical Method in which a titanium-oxygen compounds-containing material, preferably selected from natural titanium ores, titania-rich  Slags and synthetic titanium-containing materials, residues from titanium dioxide production by the sulphate or chloride process, residues or residues from the chemical industry, the paper industry or from metal extraction, from titanium extraction, titanium-oxygen compounds containing catalysts, spent titanium oxygen Compound-containing catalysts, or a mixture of at least two of these materials, with a deoxidizer, a  Desulfurizing agent or a mixture thereof, optionally mixed with other starting materials. The process for producing an aggregate according to claim 12, further comprising the step of compressing the resulting mixture into shaped articles such as agglomerated bricks, briquettes, pellets or briquettes. 14. Process for producing a metallurgical aggregate  Method in which a titanium-oxygen compounds-containing material, preferably selected from natural titanium ores, titanium dioxide rich  Slags and synthetic titanium-containing materials or a mixture of at least two of these materials, optionally with others  Starting materials, is mixed and filled into a metallic container such as Fülldrahtumhüllung, wherein the metallic container is a content of one or more deoxidants and / or  Has or consists of desulfurization. 15. A process for the production of an aggregate for metallurgical  Process in which a titanium-containing material, preferably selected from natural titanium ores, titanium dioxide-rich slags and synthetic titanium-containing materials or a mixture of at least two of these materials, with one or more deoxidizers and / or Desulfurizing agents or mixtures thereof, optionally mixed with other feedstocks, and the resulting mixture is filled into a metallic container. The process for producing an aggregate according to any one of claims 12 to 15, wherein the deoxidizer is selected from the group consisting of calcium, magnesium, aluminum, manganese, silicon, sodium, zirconium, cerium or alloys thereof such as CaSiMn, CaSiAl, CaSiMg , MgSi, ZrSiAl, of which consists. 17. Use of a titanium-containing aggregate according to one or more  several of claims 1 to 1 1 in metallurgical processes for  Increase the durability of refractory systems, to reduce  Nitrogen and sulfur contents, as well as to reduce unwanted impurities in the metallurgical process, for example in blast furnaces, or  Shaft furnaces, as well as slag inhibitors and alloying agents in metallurgical processes, in particular in vessels of primary, secondary and tertiary metallurgy, and / or for increasing the durability of  Ofenausmauerungen same.