EP3983357A1 - Verwendung eines calciumaluminathaltigen hydraulischen bindemittels zur herstellung eines baustoffes - Google Patents

Verwendung eines calciumaluminathaltigen hydraulischen bindemittels zur herstellung eines baustoffes

Info

Publication number
EP3983357A1
EP3983357A1 EP20732860.0A EP20732860A EP3983357A1 EP 3983357 A1 EP3983357 A1 EP 3983357A1 EP 20732860 A EP20732860 A EP 20732860A EP 3983357 A1 EP3983357 A1 EP 3983357A1
Authority
EP
European Patent Office
Prior art keywords
weight
use according
proportion
building material
calcium
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
Application number
EP20732860.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Stephen Alan BROOKS
Rüdiger Oberste-Padtberg
Jörg Sieksmeier
Hubert Motzet
Michael POMBERG
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.)
Ardex Group GmbH
Original Assignee
Ardex Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ardex Group GmbH filed Critical Ardex Group GmbH
Publication of EP3983357A1 publication Critical patent/EP3983357A1/de
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
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    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation
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    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
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    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • C04B2111/00646—Masonry mortars
    • 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
    • C04B2111/60—Flooring materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/20—Dewatering by mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B2007/005—Rotary-drum furnaces, i.e. horizontal or slightly inclined for the treatment of slurries or wet materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to the use of a calcium aluminate-containing binder for the production of a building material.
  • a hydraulic binder containing calcium aluminate is used for the production of a building material, the hydraulic binder containing calcium aluminate being obtainable via a method in which a) processed amorphous aluminum oxide-rich and / or aluminum hydroxide-rich residue after addition of a b) calcium ion-containing binder component and c) water is heated.
  • a hydraulic binding agent is preferably understood to be a material which, after being mixed with water, solidifies and hardens automatically as a result of chemical reactions with the mixing water and, after hardening, remains firm and stable under water.
  • a residue is understood to mean, in particular, a residue occurring in a process for which none Reuse is intended and which therefore - in some cases time-consuming and costly - has to be disposed of.
  • processing can in particular be understood to mean a form of treatment that includes, for example, collecting, filtering, drying, comminuting or the like.
  • a residual material rich in aluminum oxide and / or aluminum hydroxide is understood in particular to be a material which has an aluminum oxide or aluminum hydroxide content (the sum of the aluminum oxide or aluminum hydroxide) of at least 5% by weight, preferably at least 30% by weight. , in particular of at least 50% by weight based on the dry content of the material. It goes without saying that the material can essentially only be formed in the form of one of the two components.
  • a versatile, replaceable hydraulic binder can be produced in a simple and inexpensive manner, which at the same time makes a contribution to sustainable building, the contribution in particular it is supplied by conserving natural resources by using residual or waste materials to produce the hydraulic binder, which otherwise would have to be disposed of in a complex and costly manner.
  • the processed amorphous aluminum oxide-rich and / or aluminum hydroxide-rich residue has a degree of crystallization of less than 25% by weight, preferably less than 20% by weight. , in particular of less than 15 wt .-%.
  • the degree of crystallization should serve as a measure of the amorphous character of a material, whereby the Properties behave inversely to each other.
  • the degree of crystallization can be measured, for example, using spectroscopic methods, DSC measurements or X-ray diffraction experiments.
  • the processed residual material rich in aluminum oxide and / or high in aluminum hydroxide is at least partially, preferably completely, in the form of drinking water treatment residues.
  • Drinking water treatment residues in particular have high aluminum oxide and / or aluminum hydroxide contents and are significantly less laborious to clean up than other residues, such as waste water treatment residues or the like, in particular because they are less polluted. Due to the different ingredients of drinking water and wastewater, these (drinking water / wastewater) cannot be directly compared.
  • Organic material is understood here to mean material that includes carbon compounds and does not belong to one of the following types of compounds: elemental carbon, anhydrous chalcogenides, carbonic acid, carbonates, carbides, cyanides, cyanates and thiocyanates.
  • Essentially free means a residue content of preferably less than 2% by weight, particularly preferably less than 0.5% by weight, in particular less than 0.1% by weight.
  • the processed residue rich in aluminum oxide and / or high in aluminum hydroxide is essentially anhydrous.
  • Essentially anhydrous here means a water content of preferably less than 5% by weight, particularly preferably less than 2% by weight, in particular less than 0.5% by weight.
  • the processed residual material rich in aluminum oxide and / or aluminum hydroxide has a particle size of less than 100 ⁇ m, preferably less than 50 ⁇ m, in particular less than 40 pm.
  • the processed residual material rich in aluminum oxide and / or aluminum hydroxide is present in a proportion of 0.5-65% by weight, preferably in a proportion of 1-55% by weight. %, in particular in a proportion of 2-45% by weight based on the total dry matter of the building material is used or is contained in the building material.
  • the material can be temperature pretreated, for example by being at a temperature of less than 700 ° C, preferably less than 650 ° C, in particular is preferably pretreated at a temperature between 650 ° C and 350 ° C, in particular at a temperature between 400 ° C and 500 ° C.
  • the residual material can also be pre-treated with air flow or pre-drained.
  • an ettringite former preferably a calcium-containing and / or sulfate-containing ettringite former
  • the ettringite former can be used in a proportion of 20-70% by weight based on the dry weight of the building material.
  • the ettringite former can preferably be in the form of calcium aluminate, calcium sulfoaluminate cement, sodium aluminate, high alumina cement, aluminum sulfate, aluminum hydroxide or mixtures thereof.
  • the addition of Portland cement and / or hydrated lime and / or can be used to produce the building material Calcium oxide and / or calcium sulfate may be provided. Pozzolans, lime or similar substances can also be added.
  • the building material can advantageously have a ternary binder, the ternary binder preferably comprising calcium aluminate cement, Portland cement and a sulfate carrier.
  • the ternary binder advantageously has a proportion of 20-70% by weight of calcium aluminate cement, 10-40% by weight of sulphate carrier and 0.2-20% by weight of Portland cement, based on the total mass of the ternary binder.
  • the sulfate carrier can preferably be formed in the form of calcium sulfate a-hemihydrate, calcium sulfate ß-hemihydrate, anhydrite, calcium sulfate dihydrate or mixtures thereof.
  • the building material can advantageously have a filler, the filler in the building material preferably in a proportion of 10-90% by weight, particularly preferably in a proportion of 20-80% by weight. %, in particular in a proportion of 30-70% by weight based on the total dry mass of the can be added.
  • the filler in the building material preferably in a proportion of 10-90% by weight, particularly preferably in a proportion of 20-80% by weight. %, in particular in a proportion of 30-70% by weight based on the total dry mass of the can be added.
  • the filler can preferably have a particle size of less than 2 mm, particularly preferably less than 1 mm, in particular a particle size of 10-500 ⁇ m.
  • the filler can be in the form of various variants, such as limestone powder, quartz sand, marble, chalk, clay, marl, talc or lightweight fillers such as hollow microspheres made of glass, ceramic or plastic or lightweight fillers such as expanded glass, expanded mica, expanded perlite, expanded slate , Expanded clay, coal fly ash, brick chippings, natural pumice, tuff, lava, hut pumice, boiler sand or a mixture thereof.
  • the addition of additives can be provided for the production of the building material, the additives preferably in a proportion of 0.001-10% by weight, particularly preferably a proportion of 0.005-5% by weight. , in particular in a proportion of 0.01-2.5% by weight based on the total dry matter of the building material.
  • the additives can be in the form of liquefiers, retarders, accelerators, adjusting agents, stabilizers, defoamers or sealants, for example.
  • the plasticizers can preferably be present in the building material in a proportion of 0.001 to 5% by weight and are preferably provided to reduce the water requirement when mixing the building material and to bring about a rapid development of early strength.
  • the liquefiers or the flow agents or leveling agents can be in the form of modified liquefiers based on polycarboxylate ethers, melamine sulfonate based, casein based or based on saturated or unsaturated mono- or dicarboxylic acid derivatives or based on oxyalkylene glycol alkenyl ethers and / or esters.
  • the retarders can also preferably be present in the building material in a proportion of 0.001 to 2% by weight and advantageously be in the form of tartaric acid, citric acid or one or more of their salts.
  • the accelerators can furthermore preferably be in the form of hardening accelerators and, for example, be present in the building material in a proportion of 0.001 to 2% by weight.
  • the accelerators can in particular be based on alkali carbonates, such as UCO3 or the like.
  • the stabilizing agents can also advantageously be present in the building material in a proportion of 0.001 to 2% by weight and be formed, for example, in the form of heteropolysaccharides, cellulose, cellulose derivatives such as hydroxycellulose or the like.
  • the defoamers can also be present in the building material in a proportion of 0.001 to 1% by weight, for example.
  • other additives such as thickeners, color pigments, reducing agents, air-entraining agents, processing aids, water repellants, wetting agents, biocides, fungicides, algicides or flame retardants or the like can also be present in the building material.
  • an epoxy resin and an epoxy hardener to be provided for the production of the building material, the epoxy resin and the epoxy hardener in total preferably becoming one Proportion of 10 - 60 wt .-% based on the total dry mass of the building material can be added.
  • the building material has a plastic dispersion powder, the plastic dispersion powder preferably in a proportion of 0.1-20% by weight, particularly preferably in a proportion of 0.5-10% by weight, in particular in a proportion of 1 to 5% by weight, based on the
  • Total dry mass of the building material is present in the building material.
  • the plastic dispersion powder can for example be based on vinyl or acrylate polymers, in particular based on a polyvinyl acetate, a
  • Polyvinyl versatates a polystyrene acrylate, a polyacrylate, a polyvinyl alcohol, a polyvinyl propionate, a polyvinyl chloride, a polyethylene, a polypropylene, a butyl acrylate or a mixture thereof.
  • a fibrous material is added to the production of the building material, the fibrous material preferably in a proportion of 0.01-5 wt .-%, particularly preferably in a proportion of 0.1-3% by weight, in particular in a proportion of 1-2% by weight, based on the total dry matter of the building material.
  • the fiber-like material has fibers of a length of up to 2 mm, preferably of up to 3 mm, in particular of up to 5 mm.
  • the invention can advantageously provide that the building material is in the form of a Screed, mortar, filler or tile adhesive is formed.
  • the building materials can be particularly suitable for laying natural stones, stones, tiles, slabs or other covering materials such as mats, wooden floors, parquet, carpet, laminate and the like.
  • the screed can also be formed as a cement screed or synthetic resin screed and applied in the form of a flowing or dry screed.
  • the mortar can also be in the form of a cement-based mortar or a synthetic resin mortar and be designed as a joint mortar or thin-bed mortar.
  • the filler can also be designed, for example, in the form of a floor, wall or ceiling filler, whereas the tile adhesive can also be designed as a floor or wall tile adhesive and can be based on cement or synthetic resin.
  • some exemplary formulations (dry compositions) for building materials according to the invention are given, which can be produced on the basis of the inventive use of the calcium aluminate-containing hydraulic binder (hydraulic binder I) with the addition of the other listed components.
  • the corresponding “ready-to-use” building material can then be produced from these proposed dry compositions by adding water.
  • the proportion of water can preferably be 10-150% by weight based on the total dry mass of the building materials.
  • the identification as “hydraulic binder I” is intended to distinguish the hydraulic binder according to the invention containing calcium aluminate in particular from other hydraulic binders, such as Portland cement or high-alumina cement.
  • Hydraulic binder I 30% by weight
  • Hydraulic binder I 16.5% by weight Portland cement: 5.5% by weight high alumina cement: 5% by weight CaSCU-a-hemihydrate: 9% by weight
  • Dispersible powder 3% by weight
  • Stabilizer 0.02% by weight
  • Hydraulic binder I 11.6% by weight of calcium aluminate cement: 4% by weight of Portland cement: 10.4% by weight of CaSCL-a-hemihydrate: 11% by weight
  • Hydraulic binder I 29.2% by weight Synthetic resin: 30% by weight
  • Alumina cement 17.3% by weight
  • the building materials according to the invention listed in the exemplary embodiments are not only versatile and easy and inexpensive to manufacture, but also make a contribution to sustainable building at the same time, which is provided in particular by the fact that resources are conserved in the manufacture of the building materials by residual or waste materials are used for production, which otherwise would have to be disposed of in a complex and costly manner.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP20732860.0A 2019-06-12 2020-06-12 Verwendung eines calciumaluminathaltigen hydraulischen bindemittels zur herstellung eines baustoffes Pending EP3983357A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1908383.1A GB2586951B (en) 2019-06-12 2019-06-12 A method and apparatus for processing water treatment residuals
GB2003674.5A GB2592985A (en) 2019-06-12 2020-03-13 A method for the manufacture of hydraulic binders from water treatment residuals
PCT/EP2020/066303 WO2020249729A1 (de) 2019-06-12 2020-06-12 Verwendung eines calciumaluminathaltigen hydraulischen bindemittels zur herstellung eines baustoffes

Publications (1)

Publication Number Publication Date
EP3983357A1 true EP3983357A1 (de) 2022-04-20

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Application Number Title Priority Date Filing Date
EP20732860.0A Pending EP3983357A1 (de) 2019-06-12 2020-06-12 Verwendung eines calciumaluminathaltigen hydraulischen bindemittels zur herstellung eines baustoffes
EP20732866.7A Pending EP3983359A1 (en) 2019-06-12 2020-06-12 A method for the manufacture of hydraulic binders from water treatment residuals
EP20732865.9A Pending EP3983358A1 (en) 2019-06-12 2020-06-12 A method and apparatus for processing water treatment residuals
EP20839233.2A Pending EP4118058A1 (de) 2019-06-12 2020-12-11 Verfahren zur herstellung eines bindemittels

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EP20732866.7A Pending EP3983359A1 (en) 2019-06-12 2020-06-12 A method for the manufacture of hydraulic binders from water treatment residuals
EP20732865.9A Pending EP3983358A1 (en) 2019-06-12 2020-06-12 A method and apparatus for processing water treatment residuals
EP20839233.2A Pending EP4118058A1 (de) 2019-06-12 2020-12-11 Verfahren zur herstellung eines bindemittels

Country Status (12)

Country Link
US (4) US20220227665A1 (https=)
EP (4) EP3983357A1 (https=)
JP (4) JP2022539963A (https=)
KR (4) KR20220021484A (https=)
CN (5) CN113950462A (https=)
AU (4) AU2020290677B2 (https=)
BR (4) BR112021024292A2 (https=)
CA (4) CA3140133A1 (https=)
GB (2) GB2586951B (https=)
MX (4) MX2021014670A (https=)
SG (4) SG11202113039UA (https=)
WO (5) WO2020249736A1 (https=)

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EP4484395A1 (en) * 2023-06-24 2025-01-01 The Provost, Fellows, Foundation Scholars, & the Other Members of Board, of the College of the Holy & Undiv. Trinit A method of producing a composition comprising calcium aluminate

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