EP3020834B1 - Carbon material-containing granulated particles in production of sintered ore, method for producing the same and method for producing sintered ore - Google Patents

Carbon material-containing granulated particles in production of sintered ore, method for producing the same and method for producing sintered ore Download PDF

Info

Publication number
EP3020834B1
EP3020834B1 EP14822156.7A EP14822156A EP3020834B1 EP 3020834 B1 EP3020834 B1 EP 3020834B1 EP 14822156 A EP14822156 A EP 14822156A EP 3020834 B1 EP3020834 B1 EP 3020834B1
Authority
EP
European Patent Office
Prior art keywords
carbon material
granulated particles
sintered ore
iron
production
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.)
Active
Application number
EP14822156.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3020834A1 (en
EP3020834A4 (en
Inventor
Yuji Iwami
Nobuyuki Oyama
Tetsuya Yamamoto
Takahide Higuchi
Kazumi IWASE
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP3020834A1 publication Critical patent/EP3020834A1/en
Publication of EP3020834A4 publication Critical patent/EP3020834A4/en
Application granted granted Critical
Publication of EP3020834B1 publication Critical patent/EP3020834B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing

Definitions

  • This invention relates to a production technique of sintered ore used as an iron-making material for a blast furnace or the like, and more particularly to carbon material-containing granulated particles used in the production of sintered ore, a method for producing the same and a production method for sintered ore using the carbon material-containing granulated particles.
  • iron-containing materials such as iron ores, sintered ores and the like as an iron source at the moment.
  • the sintered ore is a type of agglomerated ores obtained by adding a proper amount of water to a raw granulating material made from iron ores having a particle size of not more than 10 mm, an auxiliary raw material of SiO 2 -containing material such as silica stone, serpentinite, refined nickel slag or the like and CaO-containing raw material such as limestone, quicklime or the like, and a solid fuel (carbon material) of a coagulating material such as coke breeze, anthracite or the like, mixing and granulating them with a drum mixer or the like to form a sintering raw material of quasi particles, charging the sintering raw material onto a circularly moving pallet in a sintering machine, burning the carbon material contained in the quasi particles to perform sintering, crushing and granulating the resulting sintered cake
  • the agglomerated ore are recently watched ones formed by closely arranging an iron source such as iron ores, dusts or the like to a carbon material such as coke or the like. It is because when the iron source such as iron ores or the like and the carbon material are closely arranged in one agglomerated ore, reduction reaction (exothermic reaction) at the side of the iron source and gasification reaction (endothermic reaction) at the side of the carbon material are repeatedly caused at a faster rate, whereby not only an iron-making efficiency can be increased but also a temperature inside a furnace such as blast furnace or the like can be decreased.
  • Patent Document 1 discloses an agglomerated ore formed by adding a carbon material such as coal, coke or the like and starch to an iron-containing powder generated in iron-making steps such as blast furnace/converter dust, rolling scale, slug, iron pore powder or a mixture thereof, mixing and kneading them, feeding a starch solution in a granulating machine and granulating them.
  • the carbon material in pellets is burnt out in the production of sintered ore, so that the close arrangement of the iron-containing material such as iron ore or the like to the carbon material is not actually attained.
  • the iron-containing material such as iron ores or the like is mixed with the carbon material such as coke or the like and agglomerated by hot forming and then used as a raw iron-making material in a blast furnace or the like at raw particle state without firing.
  • these agglomerates are lacking in the strength and are violent in the powdering because they are non-fired ones comprised of a uniform mixture or multi-stratified granulates, so that there is a problem that when the agglomerates are charged into a blast furnace or the like, powdering formation through degradation through dehydration or reduction degradation is caused to block air permeability in the blast furnace and hence the use amount is restricted.
  • Patent Document 6 proposes an agglomerated ore for iron-making formed by making cores from a starting material containing not less than 5 wt% of metallic iron and/or not less than 5% of carbon, enveloping the cores with a starting material containing not less than 10 wt% of metallic iron and not more than 5 wt% of carbon to form one or more outer peripheral layers and firing in an oxidizing atmosphere of 300-1300°C.
  • Patent Document 7 discloses a technique wherein a carbon material-containing agglomerated ore is obtained by coating a carbon material core of small lump coke with a metallic iron-containing iron oxide powder such as iron-making dusts, mill scale or the like with a granulating machine to form iron oxide shells having a low oxidation degree, subjecting to an oxidation treatment by heating in air at a temperature of not lower than 200°C but lower than 300°C for 0.5-5 hours to form a hard thin layer made of iron oxide having a high oxidation degree onto only the surfaces of the iron oxide shells
  • Patent Document 8 discloses a technique of producing an agglomerated ore containing coke breeze of not more than 3 mm at a dispersed state in iron oxide powder or iron ore powder by mixing and granulating iron oxide powder or iron ore powder such as iron-making dust
  • Non-patent Document 1 reports evaluation results of reactivity in an atmosphere inside a blast furnace on carbon material-containing sintered ore obtained by coating anthracite as a core with pellet feeds to form a green ball, applying anthracite onto a surface of the green ball, charging the green balls onto ores placed on a floor of a pan type testing device and charging a sintering raw material thereon to perform sintering.
  • Non-patent Document 1 CAMP-ISIJ vol. 24(2011), 194
  • Patent Documents 7 and 8 can be obtained carbon material-containing agglomerated ores having a proper size and a sufficient strength as an iron-making material and having a structure in which an iron-containing material and a carbon material are closely arranged and iron-making reaction is easily caused and a low-temperature reduction can be performed.
  • Non-patent Document 1 has a problem that since the sintering raw material is not existent around the green ball but anthracite is applied onto the surface of the green ball, the pellet feed layer coated with anthracite are melted to expose anthracite therein, which is burn out and dispensed.
  • Patent Document 9 discloses a technique of forming compression-agglomerated particles (granules) from iron ore, carbonaceous material, and auxiliary raw material in the form of quicklime, where the core part of the granule may be a single layer or a two-layer structure which is prepared by forming an outer layer of iron ore on the inner layer of iron ore, auxiliary raw material, and carbonaceous material, the granule being composed of the core part coated by carbonaceous material as the fuel (setting material).
  • This invention is made in view of the above problems inherent to the conventional techniques and is to provide carbon material-containing granulated particles capable of providing carbon material-containing agglomerated ore (sintered ore), in which iron-containing raw material and carbon material are arranged close to each other, without using metallic iron-containing iron oxide powder such as iron-making dusts, mill scale and the like and hence restricting production volume, and a method for producing the same as well as a method for producing sintered ore by using the carbon material-containing granulated particles.
  • the invention lies in carbon material-containing granulated particles in the production of sintered ore, which particles are comprised of a carbon material core and an outer layer formed around the carbon material core and composed mainly of iron ore powder and CaO-containing raw material.
  • the iron ore powder is a pellet feed having a particle size of 10-1000 ⁇ m.
  • the pellet feed in the carbon material-containing granulated particles according to the invention has a particle size of not more than 250 ⁇ m.
  • the outer layer has a melting point of not lower than 1200°C but not higher than 1500°C.
  • a carbon material as the carbon material core is coke particles having a particle size of not less than 3 mm.
  • the outer layer in the carbon material-containing granulated particles according to the invention has a thickness of not less than 2 mm.
  • the carbon material-containing granulated particles according to the invention have a particle size of not less than 8 mm.
  • the invention is a method for producing the carbon material-containing granulated particles described in any of the above, i.e. a method for producing carbon material-containing granulated particles in the production of sintered ore, which comprises charging a carbon material core, iron ore powder to be an outer layer and CaO-containing raw material as a melting point conditioner into a pelletizer and mixing and granulating them to obtain the carbon material-containing granulated particles formed by coating the carbon material core with the outer layer.
  • the invention is a method for producing a carbon material-containing sintered ore, which comprises mixing the carbon material-containing granulated particles described in any of the above with other granulated particles formed by granulating a raw granulating material of iron ore powder, carbon material and CaO-containing material as an auxiliary material to form a sintering raw material, charging it on a pallet of a sintering machine to form a charged layer, and producing a sintered ore by combustion heat of a carbon material included in the other granulated particles.
  • the carbon material-containing granulated particles are charged into a lower layer side of the charged layer.
  • the other granulated particles are granulated in a drum mixer and have a particle size smaller than that of the carbon material-containing granulated particles.
  • the cheap iron ore powder having a high purity is used instead of iron oxide powder having a low oxidation degree such as various iron-making dusts, mill scale and the like generated in an iron foundry and having limits in the production volume, so that the carbon material-containing granulated particles can be produced cheaply without limiting the production volume and requiring oxidation treatment.
  • the carbon material-containing granulated particles according to the invention can be converted to a sintered ore with the conventional sintering machine, so that a large amount of carbon material-containing sintered ore can be produced cheaply.
  • the carbon material-containing sintered ore according to the invention has a sufficient strength for use as a raw material for a blast furnace or the like and a structure of arranging iron-containing material and carbon material close to each other, so that it contributes to the increase of iron-making reaction efficiency, the lowering of the temperature inside the furnace, the reduction of fuel ratio and the decrease of production cost.
  • pig iron is produced by heating and reducing an iron-containing material such as iron ore, sintered ore or the like by combustion heat of a carbon material such as coke or the like.
  • an iron-containing material such as iron ore, sintered ore or the like by combustion heat of a carbon material such as coke or the like.
  • moving resistance of a gas as a heat transfer means becomes larger and rather the reaction rate becomes slower.
  • the ferrocoke is a technique wherein a carbon material and iron ores (iron-containing material) are mixed and baked to form an iron-making raw material
  • the carbon material-containing agglomerated ore is a technique wherein a carbon material is filled and included into iron ore to form an iron-making raw material
  • the ultra-fining is a technique wherein a carbon material is mainly fined and used.
  • FIG. 2 The thinking for these techniques is based on a theory shown in FIG. 2 .
  • FIG. 2 is shown a relationship among heat exchange, reduction reaction of iron ores and gasification reaction of carbon material (coke) when the iron ores and carbon material are arranged closely to each other.
  • reduction reaction At the side of the iron ores is caused reduction reaction by reacting Fe 2 O 3 with CO to produce Fe and CO 2 .
  • This reaction is an exothermic reaction.
  • a gasification reaction gas reforming reaction
  • Bodoir reaction gas reforming reaction
  • This reaction is an endothermic reaction. (Hereinafter, both the reactions are called as "iron-making reaction”.)
  • the carbon material-containing agglomerated ore sintered ore
  • the carbon material-containing agglomerated ore sintered ore
  • the carbon material-containing sintered ore cannot be obtained stably as long as this problem cannot be solved.
  • the above problem is solved by using quasi particles, in which small lump coke is included in its central portion as a carbon material core and coated around the periphery thereof with iron ore powder with an adjusted melting point, as carbon material-containing granulated particles in the production of a carbon material-containing agglomerated ore or in the production of sintered ore.
  • the carbon material-containing agglomerated ore according to the invention is the same as the carbon material-containing agglomerated ore of the prior art in a point that small lump coke is used as a carbon material core in a central portion of granulated particles (quasi particles).
  • the invention is different from the prior art in a point that the burning and losing of the carbon material core during the sintering is prevented by coating the periphery of the carbon material core with the iron ore powder and adding quicklime to the iron ore powder to lower a melting point and form a dense outer layer during the sintering.
  • pellet feed having a particle size of 10-1000 ⁇ m, preferably not more than 250 ⁇ m.
  • the pellet feed contains not less than 90% of fine ores having a particle size of not more than 1 mm and is mainly composed of hematite or magnetite having a high quality (high Fe, low gangue) and is excellent in a point that it can be obtained cheaply in large volume.
  • iron ore powder used in the invention are used mill scale, dust recovered from converter exhaust gas (OG dust), tailing generated in ore dressing and so on in addition to the pellet feed, or a mixture thereof with the pellet feed, as long as the particle sizes thereof are within the above range.
  • OG dust converter exhaust gas
  • a melting point of magnetite, particularly high-quality magnetite is as high as about 1580°C as seen from Fe 2 O 3 -CaO binary phase diagram shown in FIG. 4 , which is considerably higher than a sintering temperature suitable for obtaining a high quality sintered ore, so that it is not melted at a normal sintering temperature or it does not cause sintering reaction.
  • the invention lies in that the iron ore powder is added with CaO-containing material to lower a melting point of the outer layer and early fused at a temperature of the sintering (not lower than 1200°C) to form a fusion layer and the burning and losing of the carbon material core included in the carbon material-containing granulated particles is prevented by making the fusion layer act as an oxygen blocking layer to leave the carbon material core.
  • the inside of the outer layer is basically kept by CO gas of a reducing atmosphere generated by a reaction of C forming a central core with penetrated O 2 through an oxygen blocking effect of the outer layer formed around central core of the carbon material-containing granulated particles (quasi particles), and hence the retaining of the carbon material is made possible.
  • the melting point to be adjusted is preferably within a range of 1200-1500°C, and more preferably within a range of 1200-1400°C from a viewpoint of promoting fusion in a sintering machine.
  • a melt is not formed and also calcium ferrite having a highest strength and a relatively high reducing property among constituent minerals of the sintered ore is not produced.
  • the outer layer is not melted in the sintering machine and is not fused with a sintered ore structure composed mainly of calcium ferrite.
  • the addition amount of quicklime CaO added as a melting point conditioner may be determined from the Fe 2 O 3 -CaO binary phase diagram shown in FIG. 4 , for example, when ones having a small gangue ingredient (hematite (Fe 2 O 3 ) is 97.7 mass%) such as Anglo American-PF is used as pellet feed (PF) of the outer layer. While, when PF having a large gangue ingredient is used, the addition amount of CaO may be determined with SiO 2 Fe 2 O3-CaO ternary phase diagram shown in FIG. 6 considering SiO 2 as a gangue ingredient. Moreover, quicklime acts not only as the melting point conditioner but also as a binder.
  • the size of the carbon material core is not less than 3 mm and the thickness of the outer layer formed around the carbon material core is not less than 2 mm and the particle size is controlled to a proper range.
  • the size of the carbon material means a major axis of the carbon material.
  • the carbon material core used as a granulating core in the carbon material-containing granulated particles according to the invention it is preferable to use a carbon material having a small volatile matter such as small lump coke and/or anthracite such as Hongay coal or the like.
  • the small lump coke is preferable because it is easily available and does not generate a gas even in the heating.
  • the particle size of the carbon material as a core is not fine for preventing the burning and losing of the carbon material core in the sintering process and is preferably not less than 3 mm. It is more preferably not less than 4 mm, further preferably not less than 5 mm.
  • the outer layer formed around the carbon material core is preferable to have a thickness of not less than 2 mm.
  • it is less than 2 mm, even if the dense outer layer is formed by melting in the sintering, there is a fear of not sufficiently functioning as an oxygen blocking layer and also there is a fear of not completely covering the carbon material core because many irregularities are existent in the carbon material core.
  • the granulated particles are heated from exterior, so that it is more difficult to raise the temperature toward the central side by the heating. Therefore, as the thickness of the outer layer is thicker, it is preferable to adjust the melting point of the outer layer to be lower. To this end, it is more preferably within a range of 3-7 mm.
  • the particle size of the carbon material-containing granulated particles using the carbon material as a core according to the invention becomes 7 mm in minimum from a minimum size of the carbon material core and a minimum thickness of the outer layer but is preferable to be not less than a particle size sufficiently raising a temperature up to a particle center in the sintering process in view of a temperature distribution inside the granulated particles from a viewpoint of suppressing the reaction of the carbon material in the sintering machine because the heating of the carbon material core is not required, i.e. not less than 8 mm. It is more preferably not less than 10 mm, further preferably not less than 20 mm.
  • the particle size is larger than that of the normal sintering raw material (granulated particles) from a viewpoint of segregation-charging toward a lower layer side of the sintered layer when the sintering material is charged into the sintering machine as mentioned later.
  • the normal granulated particles mean quasi particles formed by granulating a raw granulating material of iron ore powder, carbon material and CaO-containing material as an auxiliary material to a particle size of 2-4 mm (arithmetic mean size) with a drum mixer, pelletizer or the like (the same hereinafter).
  • the particle size in the invention means a particle size measured by sieving.
  • FIG. 7 shows an example of carbon material-containing granulated particles and a method for producing carbon material-containing sintered ore according to the invention.
  • Coke particles having a size of not less than 3 mm ⁇ as a nuclear particle, pellet feed (PF) comprised of iron ore powder of not more than 250 ⁇ m and quicklime CaO as a melting point conditioner are charged into a pelletizer and mixed and granulated to form carbon material-containing granulated particles (quasi particles) having a size of not less than 8 mm ⁇ .
  • PF pellet feed
  • the thus obtained carbon material-containing granulated particles (quasi particles) are converged with the normal granulated particles for sintering (quasi particles) obtained by agitating and granulating the normal starting materials in a drum mixer or the like, and the resulting mixture of both granulated particles is carried into a surge hopper of a sintering machine and charged from the surge hopper onto a circularly moving pallet of the sintering machine.
  • the particle size of the carbon material-containing granulated particles is larger than that of the normal granulated particles for sintering (quasi particles)
  • most of the former particles are included in middle layer and lower layer sides having a sintering temperature higher than that of upper layer side due to segregation in the charging, whereby sintering reaction can be promoted sufficiently.
  • the carbon material-containing sintered ore (agglomerated ore) according to the invention can be produced by utilizing the actual sintering machine, so that the mass production can be performed cheaply. Also, the pellet feed (PF) as a staring material for the outer layer can be obtained cheaply in large volume, so that there is no restriction in the production.
  • a sintering experiment is performed by using carbon material-containing granulated particles according to the invention obtained by coating lump coke with PF and normal granulated particles as a sintering raw material with a sintering test pan shown in FIG. 8 .
  • the normal granulated particles (quasi particles) used in the sintering raw material are obtained by charging iron ore powder as a raw granulating material, limestone corresponding to 10 mass% of CaO as an auxiliary material and coke breeze corresponding to 5 mass% as a carbon material into a drum mixer and agitating and mixing them and granulating into particles having an arithmetic mean particle size of 2.9 mm.
  • the carbon material-containing granulated particles are used quasi particles T1-T7 shown in Table 1, which are obtained by charging three kinds of small lump coke each having particles sizes of 3 mm, 4 mm and 8 mm as a carbon material core, Anglo American-PF having a particle size of not more than 250 ⁇ m (hematite (Fe 2 O 3 ): 97.7%) as a raw material for outer layer (iron ore powder) and CaO (quicklime) as a melting point conditioner into a pelletizer and mixing them and granulating into particles having an outer layer thickness of not less than 2 mm and a particle size of 8-20 mm.
  • Anglo American-PF having a particle size of not more than 250 ⁇ m (hematite (Fe 2 O 3 ): 97.7%) as a raw material for outer layer (iron ore powder) and CaO (quicklime) as a melting point conditioner into a pelletizer and mixing them and granulating into particles having an outer layer thickness of not less than
  • the addition amount of CaO is 5 mass% (T6) when a melting point is set to 1500°C, 10 mass% (T1-T3) when a melting point is set to 1450°C and 17 mass% (T4, T5) when a melting point is set to 1300°C in a Fe 2 O 3 -CaO binary phase diagram shown in FIG. 5 , respectively, because hematite (Fe 2 O 3 ) of PF used as a raw material for outer layer is approximately 100%.
  • the granulated particles T4 in Table 1 are a comparative example that 2 mass% of a carbon material is incorporated into PF of the outer layer like the normal granulated particles.
  • T7 in Table 1 is a comparative example that the adjustment of a melting point in the outer layer is not performed (no addition of CaO, melting point: 1580°C).
  • the sintering experiment is performed with a sintering pan having an inner diameter of a starting material charging portion of 300 mm ⁇ and a height of 400 mm shown in FIG. 8 , in which the carbon material-containing granulated particles and the normal granulated particles are uniformly mixed at a mass ratio of 1:1 so as to embed the carbon material-containing granulated particles into the normal granulated particles and charged into a lower layer side 1/3 (133 mm) of the starting material charged portion, while the normal granulated particles are charged into an upper layer side 2/3 thereof (267 mm), and thereafter the upper layer surface of the charged layer is ignited, and air is sucked and introduced into the charged layer from above the test pan through a blower arranged beneath the test pan to combust the carbon material in the sintering raw material.
  • the reason why the carbon material-containing granulated particles are embedded in the normal granulated particles and charged into the lower layer side 1/3 is due to the fact that a carbon material-containing sintered ore is obtained by promoting the sintering reaction between the normal granulated particles and the outer layer of the carbon material-containing granulated particles through only combustion heat of the normal granulated particles without combusting the carbon material as a central core.
  • the lower layer side 1/3 is advantageous because the temperature easily rises during the sintering.
  • FIG. 9 is shown an appearance photograph of the sintered ore (agglomerated ore) obtained in the above sintering experiment.
  • the granulated particles T1-T3, T5 and T6 adapted to the invention provide the carbon material-containing sintered ore but also are properly fused to the normal sintered ore surrounding them.
  • the sintered ore is obtained at a state of including the carbon material therein and integrally uniting with the surrounding sintered ore, there is no bad influence even if it is charged into the actual sintering machine as a sintering raw material.
  • the sintered ore obtained from the granulated particles T7 not performing the melting point adjustment are retained alone without being fused to the surrounding normal sintered ore and maintained at a raw state. Therefore, it is anticipated that when the carbon material-containing granulated particles not performing the melting point adjustment of the outer layer are charged into the actual sintering machine, the carbon material-containing sintered ore is not obtained and the firing to the surrounding sintered ore is not promoted, so that they form a breaking point of the sintered ore and hence the dusting rate is increased to largely lower the yield.
  • FIG. 10 is shown a photomicrograph of the carbon material-containing sintered ore T5 integrally united with the surrounding sintered ore by proper sintering.
  • the carbon material core is coated with the PF layer in the sintered ore obtained by proper sintering, and also a fusion layer is observed between PF and the other sintering material in the surface portion of the PF layer, i.e. the PF layer is fused to the surrounding sintering raw material while coke forming the central core is retained. Therefore, there is no fear of decreasing the strength of the sintered ore due to the presence of the carbon material-containing sintered ore.
  • FIG. 11 results of elemental mapping with EPMA on the section of the carbon material-containing sintered ore T5 obtained by proper sintering. As seen from these results, carbon remains in the residual pellets inside the sintered ore, i.e. the included carbon material is existent. Also, Fe concentration is locally increased around the carbon and hence metallic iron is produced by reduction.
  • the sintering experiment is performed by charging the carbon material-containing granulated particles T5 produced in Example 1 and the normal granulated particles into the sintering test pan shown in FIG. 8 in the same manner as in Example 1.
  • the reducibility index (reducibility) RI defined in JIS M8713 and reduction degradation index RDI defined in JIS M8720 are measured on the carbon material-containing sintered ore obtained from a lower layer side 1/3 of the starting material charged part (133 mm) and the normal sintered ore obtained from an upper layer side 2/3 of the starting material charged part (267 mm), respectively.
  • FIG. 12(a) shows a change of the reducibility index (reducibility) RI with a reduction time, from which it can be seen that the carbon material-containing sintered ore according to the invention is higher in the reducibility as compared to the normal sintered ore, or the reduction reaction rate becomes higher.
  • FIG. 12(b) shows a relation between the reducibility index RI and the reduction degradation index RDI of the carbon material-containing sintered ore according to the invention in comparison with a relation between the reducibility index RI and the reduction degradation index RDI of the normal sintered ore, from which it can be seen that the carbon material-containing sintered ore according to the invention is excellent in the reducibility index RI as well as reduction degradation index RDI as compared to the normal sintered ore.
  • the technique of the invention is not limited to the aforementioned examples and can be applied, for example, to a sintering technique of supplying a gaseous fuel in addition to the carbon material added to the sintering raw material as a heat source for sintering or further a sintering technique of enriching and supplying oxygen.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Glanulating (AREA)
EP14822156.7A 2013-07-10 2014-07-02 Carbon material-containing granulated particles in production of sintered ore, method for producing the same and method for producing sintered ore Active EP3020834B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013144214 2013-07-10
JP2013215334 2013-10-16
PCT/JP2014/067656 WO2015005190A1 (ja) 2013-07-10 2014-07-02 焼結鉱製造用の炭材内装造粒粒子とその製造方法および焼結鉱の製造方法

Publications (3)

Publication Number Publication Date
EP3020834A1 EP3020834A1 (en) 2016-05-18
EP3020834A4 EP3020834A4 (en) 2016-06-29
EP3020834B1 true EP3020834B1 (en) 2017-11-01

Family

ID=52279875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14822156.7A Active EP3020834B1 (en) 2013-07-10 2014-07-02 Carbon material-containing granulated particles in production of sintered ore, method for producing the same and method for producing sintered ore

Country Status (8)

Country Link
EP (1) EP3020834B1 (ja)
JP (3) JP5790966B2 (ja)
KR (2) KR102110643B1 (ja)
CN (2) CN107419093B (ja)
AU (1) AU2014288374B9 (ja)
BR (1) BR112016000103B1 (ja)
PH (1) PH12015502818A1 (ja)
WO (1) WO2015005190A1 (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5842967B1 (ja) * 2014-07-25 2016-01-13 住友金属鉱山株式会社 ペレットの製造方法、鉄−ニッケル合金の製造方法
JP6887717B2 (ja) * 2016-03-25 2021-06-16 Ｊｆｅスチール株式会社 焼結鉱製造用の炭材内装造粒粒子およびそれを用いた焼結鉱の製造方法
JP6436317B2 (ja) * 2016-03-31 2018-12-12 Ｊｆｅスチール株式会社 焼結鉱製造用の炭材内装造粒粒子およびそれを用いた焼結鉱の製造方法
JP6686974B2 (ja) * 2016-06-22 2020-04-22 Ｊｆｅスチール株式会社 焼結鉱の製造方法
WO2017221774A1 (ja) * 2016-06-22 2017-12-28 Ｊｆｅスチール株式会社 炭材内装焼結鉱の製造方法
CN106053503A (zh) * 2016-08-09 2016-10-26 重庆大学 一种铁矿石烧结的方法及矿物相含量的定量表征方法
JP6805672B2 (ja) * 2016-09-20 2020-12-23 Ｊｆｅスチール株式会社 炭材内装造粒粒子の製造方法および炭材内装塊成鉱の製造方法
KR102288003B1 (ko) * 2016-12-28 2021-08-09 제이에프이 스틸 가부시키가이샤 소결광의 제조 방법
JP6631644B2 (ja) * 2017-02-22 2020-01-15 Ｊｆｅスチール株式会社 炭材内装造粒粒子の検査方法および炭材内装焼結鉱の製造方法
JP6683155B2 (ja) * 2017-02-28 2020-04-15 Ｊｆｅスチール株式会社 炭材内装造粒粒子の製造方法
JP2018172704A (ja) * 2017-03-31 2018-11-08 Ｊｆｅスチール株式会社 造粒焼結原料の製造方法および焼結鉱の製造方法
JP6816709B2 (ja) * 2017-12-27 2021-01-20 Ｊｆｅスチール株式会社 炭材内装焼結鉱の製造方法
JP6954236B2 (ja) * 2018-07-03 2021-10-27 Ｊｆｅスチール株式会社 炭材内装焼結鉱の製造方法及び製造設備
JP6988778B2 (ja) * 2018-11-30 2022-01-05 Ｊｆｅスチール株式会社 炭材内装焼結鉱の製造方法および炭材内装焼結鉱の製造設備
CN110724814A (zh) * 2019-11-25 2020-01-24 洛阳凯正环保工艺设备有限公司 一种高钙含铁除尘灰的冷固球团制备工艺
CN112251550B (zh) * 2020-09-30 2022-08-23 首钢集团有限公司 一种高炉入炉矿石的品位的调节方法
JP2022156458A (ja) * 2021-03-31 2022-10-14 Ｊｆｅスチール株式会社 焼結鉱の製造方法および粉化抑制方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR204404A1 (es) 1973-01-12 1976-02-06 Pilkington Brothers Ltd Metodo para producir vidrio en un tanque de fundir vidrio y tanque para su realizacion
JPS5140888B2 (ja) 1973-05-09 1976-11-06
NL8801561A (nl) 1988-06-17 1990-01-16 Imec Inter Uni Micro Electr Inrichting voor optische signaalverwerking met transistorwerking.
GB8820761D0 (en) 1988-09-02 1988-10-05 Tyrer J R Interferometry
JPH02228428A (ja) * 1989-03-02 1990-09-11 Sumitomo Metal Ind Ltd 高炉装入物およびその製造方法
JPH089739B2 (ja) * 1989-08-23 1996-01-31 日本鋼管株式会社 焼成塊成鉱の製造方法
JP2704673B2 (ja) * 1990-12-06 1998-01-26 新日本製鐵株式会社 半還元焼結鉱の製造方法
JPH05339652A (ja) * 1992-06-09 1993-12-21 Nippon Steel Corp ピソライト鉱石を主原料とする焼結鉱製造のための事前造粒法とその擬似粒子構造
JPH08199250A (ja) * 1995-01-25 1996-08-06 Nippon Steel Corp 焼結鉱の製造方法
JPH10183262A (ja) 1996-12-24 1998-07-14 Nippon Steel Corp 製鉄用塊成鉱およびその製造方法
JP3502008B2 (ja) 2000-04-07 2004-03-02 株式会社神戸製鋼所 炭材内装塊成化物の製造方法
JP3502011B2 (ja) 2000-04-24 2004-03-02 株式会社神戸製鋼所 炭材内装塊成化物の製造方法
JP2001348625A (ja) 2000-06-08 2001-12-18 Nippon Steel Corp 製鉄原料用ペレットの製造方法
JP2002241853A (ja) 2001-02-13 2002-08-28 Nippon Steel Corp 高炉用非焼成塊成鉱
JP4470490B2 (ja) * 2003-12-26 2010-06-02 Ｊｆｅスチール株式会社 半還元塊成鉱の製造方法
EP1749894A4 (en) * 2004-05-19 2008-07-02 Jfe Steel Corp SINTERED SEMI-REDDED ORE AND METHOD OF PRODUCTION THEREOF
JP4490735B2 (ja) 2004-06-04 2010-06-30 株式会社神戸製鋼所 炭材内装塊成化物の製造方法
JP2008212128A (ja) * 2007-02-28 2008-09-18 Joint Farm Kk 米の食味向上手段
JP5540806B2 (ja) 2010-03-24 2014-07-02 Ｊｆｅスチール株式会社 製鉄用炭材内装塊成鉱およびその製造方法
CN102844449B (zh) * 2010-04-14 2014-06-04 新日铁住金株式会社 烧结矿的制造方法
JP5540859B2 (ja) 2010-04-19 2014-07-02 Ｊｆｅスチール株式会社 製鉄用炭材内装塊成鉱およびその製造方法
JP5480969B2 (ja) * 2010-06-16 2014-04-23 三菱日立製鉄機械株式会社 生ペレット
JP5354428B2 (ja) * 2010-12-06 2013-11-27 三菱マテリアル株式会社 コンクリートの流動性状評価方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AU2014288374A1 (en) 2016-01-07
JP5790966B2 (ja) 2015-10-07
AU2014288374B9 (en) 2017-02-02
JP2015129353A (ja) 2015-07-16
CN107419093A (zh) 2017-12-01
CN105308194B (zh) 2018-11-13
KR20170106513A (ko) 2017-09-20
EP3020834A1 (en) 2016-05-18
JP6414493B2 (ja) 2018-10-31
WO2015005190A1 (ja) 2015-01-15
PH12015502818B1 (en) 2016-03-21
EP3020834A4 (en) 2016-06-29
CN105308194A (zh) 2016-02-03
AU2014288374B2 (en) 2016-12-08
KR102110643B1 (ko) 2020-05-13
JP6620850B2 (ja) 2019-12-18
PH12015502818A1 (en) 2016-03-21
CN107419093B (zh) 2021-12-21
KR20160003860A (ko) 2016-01-11
JP2018168476A (ja) 2018-11-01
JPWO2015005190A1 (ja) 2017-03-02
BR112016000103B1 (pt) 2020-05-12

Similar Documents

Publication Publication Date Title
EP3020834B1 (en) Carbon material-containing granulated particles in production of sintered ore, method for producing the same and method for producing sintered ore
JP2007077484A (ja) 炭材内装塊成化物の製造方法
JP6288462B2 (ja) 焼結鉱製造用の炭材内装造粒粒子とその製造方法および焼結鉱の製造方法
JP5168802B2 (ja) 焼結鉱の製造方法
TWI649429B (zh) 燒結礦的製造方法
EP1749894A1 (en) Semi-reduced sintered ore and method for production thereof
JP3344151B2 (ja) 焼結鉱の製造方法
JP7119856B2 (ja) 酸化鉱石の製錬方法
JP2002129247A (ja) 製鉄用高品位焼成塊成鉱及びその製造方法
JP7424339B2 (ja) 塊成物製造用の原料粒子、塊成物製造用の原料粒子の製造方法、塊成物、塊成物の製造方法および還元鉄の製造方法
JP6988778B2 (ja) 炭材内装焼結鉱の製造方法および炭材内装焼結鉱の製造設備
KR101841963B1 (ko) 소결광 제조방법
JP2001348622A (ja) 高炉用高品質低ＳｉＯ２焼結鉱の製造方法
JP6436317B2 (ja) 焼結鉱製造用の炭材内装造粒粒子およびそれを用いた焼結鉱の製造方法
CN115652078A (zh) 一种返矿镶嵌烧结工艺
JP2009114537A (ja) 低スラグ系焼結鉱の製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20151215

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20160601

RIC1 Information provided on ipc code assigned before grant

Ipc: C22B 1/16 20060101AFI20160525BHEP

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: C22B 1/245 20060101ALI20170504BHEP

Ipc: C22B 1/16 20060101AFI20170504BHEP

Ipc: C22B 1/24 20060101ALI20170504BHEP

Ipc: C21B 13/00 20060101ALI20170504BHEP

INTG Intention to grant announced

Effective date: 20170524

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 942103

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014016752

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20171101

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 942103

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180201

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180301

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180202

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180201

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014016752

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180702

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180702

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140702

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602014016752

Country of ref document: DE

Representative=s name: HL KEMPNER PATENTANWAELTE, SOLICITORS (ENGLAND, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602014016752

Country of ref document: DE

Representative=s name: HL KEMPNER PATENTANWALT, RECHTSANWALT, SOLICIT, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230620

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230622

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230531

Year of fee payment: 10