EP3902776A1 - Cold-setting dry vibratable mix - Google Patents
Cold-setting dry vibratable mixInfo
- Publication number
- EP3902776A1 EP3902776A1 EP20709505.0A EP20709505A EP3902776A1 EP 3902776 A1 EP3902776 A1 EP 3902776A1 EP 20709505 A EP20709505 A EP 20709505A EP 3902776 A1 EP3902776 A1 EP 3902776A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mgo
- refractory
- acid
- magnesia
- compound according
- 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.)
- Pending
Links
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 23
- 239000000395 magnesium oxide Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 4
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 4
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical group [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010450 olivine Substances 0.000 claims description 3
- 229910052609 olivine Inorganic materials 0.000 claims description 3
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 2
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- 239000001630 malic acid Substances 0.000 claims description 2
- 235000011090 malic acid Nutrition 0.000 claims description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 claims 1
- 230000009969 flowable effect Effects 0.000 claims 1
- 239000010453 quartz Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 235000021317 phosphate Nutrition 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- XZTWHWHGBBCSMX-UHFFFAOYSA-J dimagnesium;phosphonato phosphate Chemical compound [Mg+2].[Mg+2].[O-]P([O-])(=O)OP([O-])([O-])=O XZTWHWHGBBCSMX-UHFFFAOYSA-J 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- POASWNXGEVBTTP-UHFFFAOYSA-K magnesium;potassium;phosphate;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[K+].[O-]P([O-])([O-])=O POASWNXGEVBTTP-UHFFFAOYSA-K 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
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- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/105—Magnesium oxide or magnesium carbonate cements
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/06—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on oxide mixtures derived from dolomite
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/20—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in magnesium oxide, e.g. forsterite
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/447—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on phosphates, e.g. hydroxyapatite
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6306—Binders based on phosphoric acids or phosphates
- C04B35/6313—Alkali metal or alkaline earth metal phosphates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0067—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00431—Refractory materials
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/449—Organic acids, e.g. EDTA, citrate, acetate, oxalate
Definitions
- the invention relates to a pouring compound according to the preamble of claim 1.
- the invention relates to an unshaped refractory pouring mass which solidifies particularly at room temperature.
- This is preferred as a pouring compound for fertilization of metallurgical vessels, for example a distributor or the like, is used and can be referred to as cold-setting tundish flow mass.
- Unformed refractory masses are usually a mixture consisting of a refractory main component (e.g. MgO, Si02, sintered dolomite, olivine) and one or more binders.
- a refractory main component e.g. MgO, Si02, sintered dolomite, olivine
- binders e.g. MgO, Si02, sintered dolomite, olivine
- Such refractory masses can be solidified by using organic or inorganic binders or a combination of the two.
- the dry flowing masses known which contain the powdery phenolic resin as a binder.
- the hardening of these flowing masses takes place at around 200-250 ° C.
- the cold-setting pouring masses are also used. This involves using a 2-component binding system in liquid form such as water glass / ester or resin / ester combinations.
- the invention is based on the object of creating improved trickling mass according to the preamble of the independent claims.
- the flowing mass according to the invention advantageously contains the binder components in powder form and can set at room temperature by adding water as a solvent or reactant, but avoids the disadvantages described above.
- a binder consisting of magnesium oxide and an alkali phosphate (e.g. potassium dihydrogen phosphate or an alkali polyphosphate) or ammonium dihydrogen phosphate or mixtures of these phosphates.
- the phosphate used is preferably a potassium dihydrogen phosphate.
- Magnesium oxide and potassium dihydrogen phosphate react when water is added to form the crystalline potassium magnesium phosphate hexahydrate (setting product). The added water serves both as a solvent and as a reaction partner, in which it is absorbed as water of crystallization.
- the incandescent magnesium pyrophosphate As a result of the heating, at approx. 250 ° C the incandescent magnesium pyrophosphate. From around 1000 ° C this changes into magnesium phosphate.
- the refractory mass according to the invention is characterized in that it has at least one retarder in the form of a carboxylic acid.
- the carboxylic acid used is e.g. about citric acid, tartaric acid, malic acid, maleic acid etc.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to a refractory dry vibratable mix which sets at room temperature when water is added, for use in metallurgical vessels and comprising a refractory main component, a binder and a retarder.
Description
Kalthärtende Rieselmasse Cold-curing flow mass
GEBIET DER ERFINDUNG FIELD OF THE INVENTION
Die Erfindung betrifft eine Rieselmasse nach dem Oberbegriff des Anspruchs 1. The invention relates to a pouring compound according to the preamble of claim 1.
TECHNISCHER HINTERGRUND TECHNICAL BACKGROUND
Die Erfindung betrifft eine insbesondere bei Raumtemperatur verfestigende unge- formte feuerfeste Rieselmasse. Bevorzugt wird diese als Rieselmasse zur Ausklei-
düng von metallurgischen Gefäßen, z.B. eines Verteilers oder dergleichen, einge setzt und kann als Kalthärtende Tundish-Rieselmasse bezeichnet werden. The invention relates to an unshaped refractory pouring mass which solidifies particularly at room temperature. This is preferred as a pouring compound for fertilization of metallurgical vessels, for example a distributor or the like, is used and can be referred to as cold-setting tundish flow mass.
Bei ungeformten feuerfesten Massen handelt es sich in der Regel um ein Gemisch, welches aus einer feuerfesten Hauptkomponente (z.B. MgO, Si02, Sinterdolomit, Olivin) und einem oder mehreren Bindemittel besteht. Unformed refractory masses are usually a mixture consisting of a refractory main component (e.g. MgO, Si02, sintered dolomite, olivine) and one or more binders.
Die Verfestigung solcher feuerfesten Massen kann durch Verwendung von organi schen oder auch anorganischen Bindemitteln oder auch Kombination der beiden erfolgen. Such refractory masses can be solidified by using organic or inorganic binders or a combination of the two.
So sind z.B. die trockenen Rieselmassen bekannt, welche das pulverförmige Phe nolharz als Bindemittel enthalten. Die Aushärtung dieser Rieselmassen findet bei circa 200-250 °C statt. Ferner kommen die kaltabbindenden Rieselmassen zum Einsatz. Es handelt sich hier um Verwendung eines 2-Komponentenbindesystemes in flüssiger Form wie Wasserglas/Ester oder Harz/Ester-Kombinationen. E.g. the dry flowing masses known, which contain the powdery phenolic resin as a binder. The hardening of these flowing masses takes place at around 200-250 ° C. The cold-setting pouring masses are also used. This involves using a 2-component binding system in liquid form such as water glass / ester or resin / ester combinations.
Diese Systeme weisen aber mehrere Nachteile auf. So kann z.B. das klebrige Wasserglas zum Verschleiß bestimmter Maschinenteile führen. Die Harz enthal tende Bindesysteme führen zur Geruchs- und Emissionsbelastung z.B. durch Frei setzen von Ammoniak. Weiterer Nachteil dieser Binder liegt in ihrer begrenzten La gerfähigkeit. However, these systems have several disadvantages. E.g. The sticky water glass can wear out certain machine parts. The resin-containing binding systems lead to odor and emission pollution e.g. by releasing ammonia. Another disadvantage of these binders is their limited storage capacity.
Es sind aber auch Bindemittel bekannt, welche in pulvriger Form einer Rieselmasse zugegeben werden und anschließend durch Zugabe von Wasser als Reaktions partner oder Lösungsmittel ihre Wirkung entfalten. Die bis jetzt bekannten Riesel massen auf Basis von Säure/Base-Bindesystemen können unter bestimmten Be dingungen zum Freisetzen von schwefelhaltigen Verbindungen führen. Weiterhin kann durch die Verwendung von Calciumträgern als Basen die CaO-Aufnahme in vielen Stahlqualitäten als unerwünscht angesehen werden
DARSTELLUNG DER ERFINDUNG But there are also known binders which are added in powder form to a pouring mass and then develop their effect by adding water as a reaction partner or solvent. The previously known trickling masses based on acid / base binding systems can lead to the release of sulfur-containing compounds under certain conditions. Furthermore, through the use of calcium carriers as bases, the CaO uptake in many steel grades can be viewed as undesirable DISCLOSURE OF THE INVENTION
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, verbesserte Riesel masse nach dem Oberbegriff der unabhängigen Ansprüche zu schaffen. Proceeding from this, the invention is based on the object of creating improved trickling mass according to the preamble of the independent claims.
Diese Aufgabe wird entsprechend den Merkmalen der unabhängigen Ansprüche gelöst. This object is achieved in accordance with the features of the independent claims.
Die erfindungsgemäße Rieselmasse enthält die Bindemittelkomponenten zweck mäßigerweise in Pulverform und kann durch Zugabe von Wasser als Lösungsmittel bzw. Reaktionspartner bei Raumtemperatur abbinden, vermeidet jedoch die oben beschriebenen Nachteile. The flowing mass according to the invention advantageously contains the binder components in powder form and can set at room temperature by adding water as a solvent or reactant, but avoids the disadvantages described above.
In einer Ausführungsform wird ein Bindemittel bestehend aus Magnesiumoxid und einem Akaliphosphat (z.B. Kaliumdihydrogenphosphat oder einem Alkalipolyphos phat) oder Ammoniumdihydrogenphosphat oder Mischungen dieser Phosphate zur Verfügung stellt. Bevorzugt handelt es sich beim verwendeten Phosphat um einen Kaliumdihydrogenphosphat. Magnesiumoxid und Kaliumdihydrogenphosphat rea gieren unter Hinzufügen von Wasser zum kristallinen Kaliummagnesiumphosphat Hexahydrat (Abbindeprodukt). Das zugegebene Wasser dient sowohl als Lö sungsmittel als auch als Reaktionspartner, in dem es als Kristallwasser aufgenom men wird. Durch das Erwärmen bildet sich bei circa. 250 °C das glühbeständige Magnesiumpyrophosphat. Ab circa 1000 °C geht dieser in Magnesiumphosphat über. In one embodiment, a binder consisting of magnesium oxide and an alkali phosphate (e.g. potassium dihydrogen phosphate or an alkali polyphosphate) or ammonium dihydrogen phosphate or mixtures of these phosphates is provided. The phosphate used is preferably a potassium dihydrogen phosphate. Magnesium oxide and potassium dihydrogen phosphate react when water is added to form the crystalline potassium magnesium phosphate hexahydrate (setting product). The added water serves both as a solvent and as a reaction partner, in which it is absorbed as water of crystallization. As a result of the heating, at approx. 250 ° C the incandescent magnesium pyrophosphate. From around 1000 ° C this changes into magnesium phosphate.
Weiterhin ist die erfindungsgemäße feuerfeste Masse dadurch gekennzeichnet, dass Sie mindestens einen Verzögerer in Form einer Carbonsäure aufweist. Bei der verwendeten Carbonsäure handelt es sich z.B. um Zitronensäure, Weinsäure, Ap felsäure, Maleinsäure etc. Furthermore, the refractory mass according to the invention is characterized in that it has at least one retarder in the form of a carboxylic acid. The carboxylic acid used is e.g. about citric acid, tartaric acid, malic acid, maleic acid etc.
Weitere Merkmale und Ausführungsformen der Erfindung ergeben sich aus den Ansprüchen.
Further features and embodiments of the invention emerge from the claims.
Claims
1. Bei Raumtemperatur durch Wasserzugabe verfestigende feuerfeste Riesel masse zum Einsatz in metallurgischen Gefäßen, gekennzeichnet durch eine feuerfeste Hauptkomponente, ein Bindemittel und einen Verzögerer. 1. Refractory trickle mass that solidifies at room temperature by adding water for use in metallurgical vessels, characterized by a refractory main component, a binder and a retarder.
2. Rieselmasse nach Anspruch 1 , dadurch gekennzeichnet, dass die Haupt komponente Sintermagnesia, Schmelzmagnesia, Olivin, Quarz, Sinterdolo mit, und/oder Sekundärrohstoffe auf MgO-Basis umfasst oder ist. 2. Flowing compound according to claim 1, characterized in that the main component comprises or is sintered magnesia, fused magnesia, olivine, quartz, sintered dolomite and / or secondary raw materials based on MgO.
3. Rieselmasse nach Anspruch 1 oder 2, gekennzeichnet durch ein Bindemittel auf Basis von Magnesiumoxid und einem Alkaliphosphat und/oder Ammoni- umdihydrogenphosphat. 3. trickling compound according to claim 1 or 2, characterized by a binder based on magnesium oxide and an alkali phosphate and / or ammonium dihydrogen phosphate.
4. Rieselmasse nach Anspruch 3, dadurch gekennzeichnet, dass das Alkali phosphat Kaliumdihydrogenphosphat und/oder Alkalipolyphosphat umfasst oder ist. 4. pouring compound according to claim 3, characterized in that the alkali phosphate comprises or is potassium dihydrogen phosphate and / or alkali polyphosphate.
5. Rieselmasse nach einem der Ansprüche 1 bis 4, gekennzeichnet durch ei nen Verzögerer in Form einer Carbonsäure, insbesondere Zitronensäure, Weinsäure, Apfelsäure, Maleinsäure, Malonsäure. 5. pouring compound according to one of claims 1 to 4, characterized by a retarder in the form of a carboxylic acid, in particular citric acid, tartaric acid, malic acid, maleic acid, malonic acid.
6. Rieselmasse, insbesondere nach einem der vorhergehenden Ansprüche, umfassend (Gew.-%) 6. flowing mass, in particular according to one of the preceding claims, comprising (wt .-%)
5-95 % MgO oder Olivin, und/oder 5-95% MgO or olivine, and / or
Amorphes Si02<1 %, und/oder Amorphous SiO2 <1%, and / or
Carbonsäure >1 %< 5 %, und/oder Carboxylic acid> 1% <5%, and / or
Alkaliphosphat >1 %<5 %. Alkali phosphate> 1% <5%.
7. Rieselmasse, insbesondere nach einem der vorhergehenden Ansprüche, umfassend eine feuerfeste Komponente wie etwa Magnesia und kein zusätz liches MgO.
7. pouring compound, in particular according to one of the preceding claims, comprising a refractory component such as magnesia and no additional Liches MgO.
8. Rieselmasse, insbesondere nach einem der vorhergehenden Ansprüche, umfassend eine feuerfeste Komponente wie etwa Magnesia und insbeson dere zusätzliches MgO < 2 Gew.-%, <1 Gew.-%, <0.1 Gew.-% MgO.
8. Flowable mass, in particular according to one of the preceding claims, comprising a refractory component such as magnesia and in particular additional MgO <2 wt .-%, <1 wt .-%, <0.1 wt .-% MgO.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202019000813.6U DE202019000813U1 (en) | 2019-02-20 | 2019-02-20 | Cold hardening trickle mass |
| PCT/EP2020/054547 WO2020169771A1 (en) | 2019-02-20 | 2020-02-20 | Cold-setting dry vibratable mix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3902776A1 true EP3902776A1 (en) | 2021-11-03 |
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ID=69770863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20709505.0A Pending EP3902776A1 (en) | 2019-02-20 | 2020-02-20 | Cold-setting dry vibratable mix |
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| Country | Link |
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| US (1) | US20220185736A1 (en) |
| EP (1) | EP3902776A1 (en) |
| BR (1) | BR112021016058A2 (en) |
| DE (1) | DE202019000813U1 (en) |
| MX (1) | MX2021009953A (en) |
| WO (1) | WO2020169771A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1471297A1 (en) * | 1964-03-18 | 1969-03-27 | Kaiser Aluminium Chem Corp | Refractory materials and processes for their manufacture |
| FR2312468A1 (en) * | 1975-05-29 | 1976-12-24 | Ucpi | REFRACTORY MATERIAL, USEFUL IN PARTICULAR FOR THE PREPARATION AND TRANSPORT OF ALUMINUM |
| CA1279335C (en) * | 1985-09-06 | 1991-01-22 | Fawzy G. Sherif | Magnesium phosphate fast-setting cementitious compositions containing set retardants |
| CN1021305C (en) * | 1990-09-26 | 1993-06-23 | 四川省彭县保护渣厂 | Mg-cr refractory paint for continuous casting tundishes |
| US5302563A (en) * | 1992-03-06 | 1994-04-12 | Minerals Technologies, Inc. | Sprayable refractory composition |
| US5507474A (en) * | 1994-01-13 | 1996-04-16 | Minerals Technologies, Inc. | Lining for molten metal handling vessles |
| US5512316A (en) * | 1994-04-11 | 1996-04-30 | Minerals Technologies, Inc. | Method of protecting ladle linings |
| FR2809724B1 (en) | 2000-06-05 | 2003-05-09 | Rhodia Chimie Sa | NEW PHOSPHOMAGNESIAN HYDRAULIC BINDER, AND MORTAR OBTAINED FROM THIS BINDER |
| JP2005060191A (en) * | 2003-08-19 | 2005-03-10 | Denki Kagaku Kogyo Kk | Alumina cement composition and monolithic refractory using the same |
| DE102007032892B4 (en) * | 2007-07-14 | 2009-12-24 | Refractory Intellectual Property Gmbh & Co. Kg | Tundish mass and a method for creating a humid Tundishmasse |
| EP3176140B1 (en) * | 2015-12-01 | 2019-04-10 | Imertech | Refractory magnesia cement |
-
2019
- 2019-02-20 DE DE202019000813.6U patent/DE202019000813U1/en active Active
-
2020
- 2020-02-20 WO PCT/EP2020/054547 patent/WO2020169771A1/en unknown
- 2020-02-20 US US17/432,365 patent/US20220185736A1/en active Pending
- 2020-02-20 BR BR112021016058-2A patent/BR112021016058A2/en unknown
- 2020-02-20 EP EP20709505.0A patent/EP3902776A1/en active Pending
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| Publication number | Publication date |
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| US20220185736A1 (en) | 2022-06-16 |
| WO2020169771A1 (en) | 2020-08-27 |
| BR112021016058A2 (en) | 2021-10-13 |
| MX2021009953A (en) | 2022-01-31 |
| DE202019000813U1 (en) | 2020-05-28 |
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