WO2000073233A1 - Production de fibres minerales - Google Patents

Production de fibres minerales Download PDF

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Publication number
WO2000073233A1
WO2000073233A1 PCT/EP2000/004836 EP0004836W WO0073233A1 WO 2000073233 A1 WO2000073233 A1 WO 2000073233A1 EP 0004836 W EP0004836 W EP 0004836W WO 0073233 A1 WO0073233 A1 WO 0073233A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
mineral
briquettes
process according
alkali
Prior art date
Application number
PCT/EP2000/004836
Other languages
English (en)
Inventor
Vermund Rust Christensen
Soeren Lund Jensen
Jens Ranloev
Original Assignee
Rockwool International A/S
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
Priority claimed from GBGB9912564.3A external-priority patent/GB9912564D0/en
Priority claimed from GBGB9915043.5A external-priority patent/GB9915043D0/en
Application filed by Rockwool International A/S filed Critical Rockwool International A/S
Priority to EP00940276A priority Critical patent/EP1198429A1/fr
Priority to AU55262/00A priority patent/AU5526200A/en
Publication of WO2000073233A1 publication Critical patent/WO2000073233A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/02—Pretreated ingredients
    • C03C1/026—Pelletisation or prereacting of powdered raw materials
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2213/00—Glass fibres or filaments
    • C03C2213/02—Biodegradable glass fibres

Definitions

  • This invention relates to processes for the production of man-made vitreous fibres (MMVF) which are durable in use but which can be shown to be biologically advantageous, and to novel briquettes suitable for use in such processes.
  • MMVF man-made vitreous fibres
  • the charge can be melted in various types of furnace.
  • One known furnace type is the shaft furnace (for instance a cupola furnace) , in which combustion air is blown into the furnace through the charge, which includes fossil fuel to provide energy for melting.
  • the shaft furnace for instance a cupola furnace
  • combustion air is blown into the furnace through the charge, which includes fossil fuel to provide energy for melting.
  • the air flow through the stack is not disrupted. Therefore in such a process it is important that the charge forms a self-supporting stack which has considerable strength even at the high temperatures (eg above 1,000°C) which prevail in the furnace.
  • the stack should also be sufficiently permeable that melt may drain to the bottom of the stack.
  • raw materials are often charged as coarse lumps, for instance of rock or slag, or are formed into molded briquettes of particulate material.
  • briquettes allows the inclusion of fine particulate material which may not be suitable for direct addition to the furnace.
  • Such briquettes are usually molded in the presence of a binding agent such as cement or molasses .
  • a binding agent such as cement or molasses .
  • the requirement for biologically soluble fibres has been addressed by modifying the chemical composition of the fibres, for instance the amount of alumina Al 2 0 3 .
  • advantageous biological solubility properties were obtained with medium to high amounts of alumina, with values of 14 or 16% upwards being exemplified in 096/14274 and amounts of 18% upwards being described and exemplified in W096/14454.
  • the molten composition (mineral melt) is poured on to the first rotor in a set of substantially horizontally mounted rotors, and the melt is thrown from that rotor on to a second rotor in the set, from which it is thrown as fibres.
  • Some melt is usually thrown off the second rotor onto a third rotor in the set, from which melt is thrown as fibres, and in preferred processes melt is also thrown off the third rotor onto a fourth rotor, from which it is thrown as fibres.
  • phosphorus-containing fibres are described in O99/08970 in which the amount of Si0 2 is 38 to 47%, A1 2 0 3 16 to 20%, alkali 0 to 6% and iron 3 to 10%. In each of the examples the amount of Si0 2 is 42% or more and the amount of alkali is 3% or less. In WO97/29057 the amount of Si0 2 is 30 to 51%, Al 2 0 3 11.5 to 25% and alkali 10 to 19%. A somewhat similar definition is given in DE-U-29709025 but the highest exemplified amount of Al 2 0 3 is 15%. In WO98/15503 various fibres having more than 18% alumina are exemplified.
  • the amount of alkali is low and the highest amount exemplified is 2.3%.
  • O83/01947 is not concerned with providing fibres having advantageous biological solubility properties. Instead it is concerned with providing fibres which are suitable for strengthening cement and concrete products and which must thus have high resistance to chemical attack by the alkali in the cement mixtures.
  • a composition is exemplified in which the amount of alumina is 17.6%.
  • fibres which comprise amounts of alumina (Al 2 0 3 ) of from 16 to 23%, preferably 19 to 23%, and alkali (Na 2 0 and K 2 0) of from 4 to 8%.
  • alumina Al 2 0 3
  • alkali Na 2 0 and K 2 0
  • waste glass cullet eg from window panes
  • Conventional waste glass cullet is another potential candidate for providing alkali content but tends to melt too rapidly even in briquettes and thus is also inappropriate in a shaft furnace.
  • DT2536122A is a general disclosure concerning a method for the addition of basalt and other raw materials to furnaces for production of melts for various purposes, including production of mineral wool.
  • Basalt is formed into briquettes and various other materials may also be included, including nepheline syenite and phonolite amongst a wide range of other materials.
  • a briquette is exemplified which comprises 45 parts phonolite but these briquettes are clearly intended for use in a glass oven and not a shaft furnace.
  • This publication does not disclose any fibre compositions. In particular, it does not disclose fibres of the type discussed above containing high levels of alumina and relatively high levels of alkali. Nor does it address the difficulties, discussed above, in providing such fibres from materials such as soda ash and potash, especially in a shaft furnace. In particular, the publication appears to equate soda ash, potash, nepheline syenite and phonolite. It mentions a range of binders, including molasses and cement, but does not address the specific problems we have found arise when materials such as soda ash and potash are used together with cement or molasses binder.
  • Al 2 0 3 and 4 to 8% Na 2 0 plus K 2 0 comprising providing in a furnace a charge of mineral material, melting the mineral material to form a mineral melt and fiberising the mineral melt, wherein the charge comprises molded briquettes which comprise at least 5 wt.% of a mineral material selected from the group consisting of (a) mineral concentrates selected from alkali feldspar, nepheline, leucite and sodalite, (b) natural rocks selected from syenite, nepheline syenite, phonolite and alkali basalt and those natural rocks containing at least 40% alkali feldspar (eg pegmatite and granite rich in alkali feldspar) and (c) front screen glass waste (i.e. waste glass from the front screens of tubes used for televisions, monitors etc) and mixtures thereof.
  • a mineral concentrates selected from alkali feldspar, nepheline, leucite and sodalite
  • natural rocks selected
  • Preferred mineral concentrates (a) have content of alkali (Na 2 0 + K 2 0) of from 8 to 30 wt.%, more preferably 10 to 26 wt.%, in particular from 12 to 24 wt.%.
  • Preferred alkali feldspars comprise up to 12% Na 2 0 and up to 12% K 2 0, in particular 1 to 12% Na 2 0 and 1 to 12% K 2 0.
  • Preferred nephelines contain 14 to 18% Na 2 0 and 0 to 3% K 2 0.
  • Preferred leucites comprise 3 to 6% Na 2 0 and 18 to 22% K 2 0.
  • Preferred sodalites comprise 10 to 25% Na 2 0 and 0 to 5% K 2 0.
  • Preferred alkali feldspar rich rocks contain at least 50%, more preferably 60%, alkali feldspar.
  • Preferred rocks include those which have Na 2 0 content of from 3 to 5 wt.% and K 2 0 content of 3 to 5 wt . % . They may be for instance pegmatites (eg zoned pegmatites or simple or complex pegmatites) or alkali-feldspar rich granite.
  • Preferred nepheline syenites have content of 7 to 9% Na 2 0 and 5 to 7% K 2 0. Syenites having content of 4 to 7% Na 2 0 and 4 to 7% K 2 0 are particularly useful.
  • Preferred phonolites comprise 6 to 9% Na 2 0 and 5 to 7% K 2 0.
  • Preferred alkali basalts comprise 3 to 6% Na 2 0 and 2 to 5% K 2 0.
  • a further, although less preferred, raw material is (c) waste front screen glass.
  • This is waste glass from the front screen of tubes used for televisions, monitors etc. We find that this type of glass is particularly beneficial in the invention in comparison with, say, standard glass cullet from window panes and even in comparison with the glass which forms the remainder of a tube.
  • the front screen glass contains a combination of minerals which are particularly suitable for providing the properties required in the invention. It often contains for instance medium levels of barium (e.g. 0.3 to 15, often 1 to 12%) and strontium (e.g. 0.5 to 12.5, often 1 to 10%), which can provide advantages in stone wool fibres . It generally contains lower levels of alkaline earth metals such as calcium and magnesium than other types of waste glass cullet. Preferred levels of alkali are from 10 to 17 wt.%, preferably from 14 to 16 wt.%.
  • alkali content of raw materials is measured by weight of oxides .
  • the raw material has a content of alumina also, in particular at least 15 wt.%, preferably at least 19 wt.%, more preferably at least 24 wt.%.
  • Suitable materials which contain alumina include phonolite, nepheline syenite and syenite.
  • the content of silica in the raw material is not more than 65 wt.%, preferably not more than 55 wt.%.
  • Front screen glass waste is particularly suitable for providing low silica content and its content of silica is often below 65%, preferably below 62%. This is to be compared with standard glass cullet which may have content of silica of 70% or greater.
  • Preferred mineral concentrates (a) are alkali feldspar and nepheline.
  • Preferred natural rocks (b) are nepheline syenite, alkali basalt and syenite, especially alkali basalt and syenite.
  • the charge must comprise briquettes comprising at least 5 wt.% of one or a mixture of these materials. Preferably at least 20 wt.% of the charge, more preferably at least 40%, comprises such briquettes.
  • the amount may be up to for instance 85 or 90%, but is generally not more than 70%.
  • alkali basalt may be added as coarse lumps in addition to that which is added in the briquettes.
  • the total amount of the essential raw materials defined above is preferably at least 5%, more preferably at least 10 or 20%. Generally it is not more than 70%, preferably not more than 50% or 40%. It is preferred in the invention that the furnace is a shaft furnace, in particular a cupola furnace, since the invention is particularly beneficial in such a process. However, the invention can be applied in other types of furnaces, such as electric and tank furnaces.
  • the process requires the use of briquettes to form part of the charge. These include at least 5 wt.% (based on the briquette) of the defined material. Preferably they include at least 10% or 12%, preferably at least 15 or 20% and more preferably at least 25% of materials selected from the defined group.
  • the briquettes may contain up to 80%, preferably not more than 70%, and in practice generally not more than 50%, of such materials.
  • the amount of any one of the defined materials can be up to the levels above but preferably is not more than 50%, more preferably not more than 40% and in particular not more than 30%.
  • all briquettes contain at least 5 wt . % of the defined materials, although more than one type of briquette (ie composition of the briquettes) may be used. If briquettes which contain less than 5% of these defined materials are used these preferably constitute less than 50%, more preferably less than 30%, of the briquettes in the charge .
  • the briquettes may be made in known manner by molding a mix of the desired particulate materials (including the defined alkali-containing material) and a binder into the desired briquette shape and curing the binder.
  • the binder may be a hydraulic binder, that is one which is activated by water, for instance cement such as Portland cement.
  • cement such as Portland cement.
  • Other hydraulic binders can be used as partial or complete replacements for the cement and examples include lime, blast furnace slag powder (JP-A- 51075711) and certain other slags and even cement kiln dust and ground MMVF shot (US 4,662,941 and US 4,724,295).
  • Alternative binders include clay.
  • the briquettes may also be formed with an organic binder such as molasses, for instance as described in W095/34514. Such briquettes are described herein as formstones .
  • the invention is particularly beneficial when the binder is cement, because standard alkali-containing materials such as soda ash and potash give problems in combination with cement .
  • the invention can also be beneficial when the binder is molasses, which can also give problems in combination with soda ash and potash.
  • the fibres produced comprise 19 to 23% Al 2 0 3 , preferably 20 to 22%. They also comprise 4 to 8% Na 2 0+K 2 0, preferably 4.2 to 7%.
  • the fibres are generally of the type known as stone fibres and thus preferably contain 20 to 35% CaO+MgO, more preferably 25 to 30%.
  • the fibres comprise 34 to 39% Si0 2 , more preferably 35 to 38%.
  • they contain 0 to 3% Ti0 2 , more preferably not more than 2%, in particular 0.5 to 2%.
  • the amount of iron is preferably from 3 to 10%, more preferably from 4 to 9%. Throughout this specification, the amount of iron is quoted as FeO .
  • P 2 0 5 may be present, preferably in an amount of from 0 to 2%, more preferably 0 to 1%, especially 0.1 to 0.8%. Other elements may be present in amounts up to 5%, more preferably up to 2%.
  • the invention is particularly suitable for the production of novel fibres which we have described in our copending application number ... (reference PRL04240WO claiming priority from British Patent Applications 9915043.5 and 9912564.3). These fibres are particularly beneficial for efficient fiberisation.
  • the combination of ease and cost of manufacture and solubility properties is optimised, in particular in comparison with those exemplified in W096/14454 and W096/14274.
  • the process can be used to provide novel MMV fibres having a composition which includes, by weight of oxides,
  • the amount of Si0 2 is preferably at least 35.0% and is preferably not more than 38.0%. It is particularly preferred that the amount of Si0 2 should be at least 35.0% but preferably not more than 37.0%.
  • the amount of A1 2 0 3 is usually at least 20.0% and is preferably not more than 22.0%. Values of from 20.0 to 21.5% are particularly preferred, especially when the amount of Si0 2 is at least 35% and/or not more than 37%.
  • the amount of Na 2 0 plus K 2 0 is preferably at least 4.2% and is preferably not more than 7.0%. It is preferably at least 4.3% but preferably not more than 6.0%.
  • the amount of iron is preferably at least 4.0% but is usually not more than 9.0%. Preferably it is at least 5.0% but preferably not more than 8.0%.
  • the amount of Si0 2 + Al 2 0 3 is generally below 62.0% and preferably it is below 60.5%. In particular, best results are generally obtained when it is from 55.0 to 59.0%, and in particular when it is from 56.0% to 58.0%.
  • the amount of Si0 2 + Al 2 0 3 + 2R 2 0 (where R is sodium plus potassium) is preferably in the range 63.0% to 75.0%. Generally it is at least 64.0, preferably at least 64.5% and often it is at least 65.0%. Generally it is not more than 70.0% and preferably it is not more than 69.0%. It is meaningful to define these fibres partly by reference to Si0 2 4- Al 2 0 3 and/or partly by reference to Si0 2 + Al 2 0 3 + 2R 2 0 because the selection of the relative amounts of Si0 2 , Al 2 0 3 and alkali is dictated by the inter- relationship which we have established these components have on biosolubility and on viscosity.
  • Achieving the required melt properties is facilitated by increasing the amount of alkali above the amounts generally used in, for instance, W096/14454.
  • a higher amount of alkali facilitates in these compositions an increased melt viscosity and at the same time acts as a fluxing agent thus improving the melting of the high- alumina raw materials in the furnace .
  • the amount of alkali is increased too much the fire resistance of the fibres is adversely* influenced.
  • the amount which is required for any particular effect is, on a weight basis, approximately twice the amount of alumina which is required, and so selecting within the defined preferred ranges of, for instance, Si0 2 + A1 2 0 3 + 2R 2 0 gives a meaningful indication of the balance that is required for each of these components to achieve the desired combination of properties .
  • the amount of CaO is usually larger than the amount of MgO but this is not essential and valuable fibres can be made when the amount of MgO is 1.1 to 2 times, or more, the amount of CaO . Generally, however, the amount of CaO is 1.5 to 2.2 times the amount of MgO.
  • Preferred amounts of CaO are generally in the range 15.0 to 22.0% and preferred amounts of MgO are generally in the range 6.0% to 14.0%. If the amount of iron is too low the physical properties of the fibres, especially when heated, are likely to be adversely influenced. For instance the fibres will shrink and will not have good sintering properties. However if the amount is too high, as mentioned above, this makes the process of melting unsatisfactory when using a cupola or shaft furnace .
  • fibres which do give an improved balance of ease of manufacture, physical and mechanical properties in use and, especially, in vivo solubility.
  • biosolubility There is a probability that the required standards of biosolubility will continue to increase.
  • one method for determining biosolubility is by intra- tracheal tests, e.g. as described by Muhle et al in BIA- Report 2/98 : Fasern - Testszzy Abschatzung der Bio sensible für Mikrogger und vum Verstaubungs (Fibres - Tests for estimating the biopersistence and dust conditions) .
  • the result of such a test is the elimination half-time, T 50 of WHO-fibres, i.e. the time until half of the WHO-fibres injected in the rat lung have been eliminated.
  • the fibres can have very satisfactory T 50 and in particular can provide the desired T 50 values above.
  • the fibres also have a moderately increased dissolution rate at pH 7.5.
  • the fibres have good resistance to atmospheric humidity and so can be used for insulation purposes where they will be exposed to atmospheric conditions. They also have good resistance to degradation by aqueous nutrients and other aqueous liquids which would be encountered when the fibres are used as products which serve as horticultural growth substrates .
  • the mineral material is selected from those discussed above as essential in connection with the first aspect of the invention.
  • Other preferred aspects of this process are as discussed in connection with the first aspect of the invention.
  • the invention also provides, in a third aspect, novel briquettes.
  • These novel briquettes have a content, measured as oxides, of at least 2% Na 2 0 and at least 5% alkali (Na 2 0 + K 2 0) and at least 25% Al 2 0 3 .
  • Na 2 0 + K 2 0 is preferably at least 7%, more preferably at least 8 or 10%.
  • Na 2 0 is preferably at least 3%, more preferably at least 5%.
  • A1 2 0 3 is preferably at least 30%.
  • Na 2 0 is preferably not more than 30%, more preferably not more than 25 or 20%.
  • Al 2 0 3 is preferably not more than 50%, more preferably not more than 40%.
  • the novel briquettes may have K 2 0 content at least 2%, preferably at least 5%, 7% or 10%. Generally K 2 0 content is not more than 15%.
  • These briquettes may be used in a process of producing MMV fibres.
  • the front screen glass waste may be used in the aspects of the invention discussed above. We also find that it is generally useful for the production of stone wool fibres.
  • a fourth aspect of the invention we provide a process of producing stone wool fibres having a composition comprising at least 10% alkaline earth metal oxides comprising providing a charge of mineral material, melting the mineral material to form a mineral melt and fiberising the mineral melt, in which the charge comprises moulded briquettes which comprise at least 5 wt . % of front screen glass waste.
  • preferred features of the aspects of the invention discussed above may be applied, as appropriate.
  • the fibres may be made in known manner. Generally they are made by a centrifugal fibre forming process. For instance the fibres may be formed by a spinning cup process in which they are thrown outwardly through perforations in a spinning cup, or melt may be thrown off a rotating disc and fibre formation may be promoted by blasting jets of gas through the melt.
  • the invention is particularly beneficial when a cascade spinner is used and fibre formation is conducted by pouring the melt onto the first rotor in a cascade spinner.
  • the melt is poured onto the first of a set of two, three or four rotors, each of which rotates about a substantially horizontal axis, whereby melt on the first rotor is primarily thrown onto the second (lower) rotor although some may be thrown off the first rotor as fibres, and melt on the second rotor is thrown off as fibres although some may be thrown towards the third (lower) rotor and so forth.
  • the MMV fibres may be used for any of the purposes for which MMVF products are known. These include fire insulation and protection, thermal insulation, noise reduction and regulation, construction, horticultural media, and reinforcement of other products such as plastics and as . a filler.
  • the materials may be in the form of bonded batts (which may be flat or curved) or the materials may be comminuted into a granulate.
  • Bonded batts include materials such as slab and pipe sections.
  • the invention includes the use of a melt composition to provide fibres having the defined composition and which are biosoluble, in particular as indicated by T 50 of not more than 40 days, preferably not more than 30 days and most preferably not more than 25 days.
  • the process of the invention can be used to make fibres which are shown to be biodegradable, for instance as given above, and wherein the fibres have the preferred analysis given above, especially when the fibres are the fibres of a bonded product, for instance which is used as thermal insulation, fire insulation or protection or noise regulation protection, or as horticultural growth medium, or wherein the fibres are used in free form as reinforcement or as a filler.
  • the invention also includes a method of making man- made vitreous fibre products comprising forming one or more mineral melts and forming fibres from the or each melt wherein the melt viscosity and biosolubility of fibres are determined (for instance by any of the methods described in W096/14274 or by the T 50 method described above) and a composition is selected which has a suitable viscosity (generally 10 to 40, preferably 10 to 30 poise, at 1400°C) and an appropriate biosolubility and fibres are made from the selected composition, and bonded or unbonded products are made from the fibres.
  • the selected fibres may be provided in any of the forms conventional for man-made vitreous fibres.
  • the fibres may be provided as loose unbonded fibres, for instance being used as free fibres for reinforcement of cement, plastics or other products or as a filler as an unbonded insulation.
  • the fibres are provided with a bonding agent, generally as a result of forming the fibres and collecting them in conventional manner in the presence of a bonding agent.
  • the resultant product is consolidated as a slab, sheet or other shaped article. Bonded products may take the form of slabs, sheets, tubes or other shaped articles that are to serve as thermal insulation, fire insulation and protection or noise reduction and regulation, or in appropriate shapes as horticultural growing media .

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Glass Compositions (AREA)

Abstract

La présente invention concerne des fibres vitreuses artificielles présentant une composition comprenant 16 à 23 % d'alumine and 4 à 8 % d'oxydes alcalins produites à partir d'une charge comprenant des briquettes moulées comportant au moins 5 % en poids d'un matériau choisi parmi (a) du feldspath alcalin, la néphéline, le leucite et le sodalite (minéraux concentrés); (b) la syénite néphéline syénitique, la phonolite, le basalte alcalin et d'autres roches naturelles contenant au moins 40 % de feldspath alcalin et (c) des déchets d'écrans avant et leurs mélanges.
PCT/EP2000/004836 1999-05-28 2000-05-26 Production de fibres minerales WO2000073233A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00940276A EP1198429A1 (fr) 1999-05-28 2000-05-26 Production de fibres minerales
AU55262/00A AU5526200A (en) 1999-05-28 2000-05-26 Production of mineral fibres

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GBGB9912564.3A GB9912564D0 (en) 1999-05-28 1999-05-28 Man-made vitreous fibres and products containing them
GB9912564.3 1999-05-28
GBGB9915043.5A GB9915043D0 (en) 1999-06-28 1999-06-28 Man-made vitreous fibres and products containing them
GB9915043.5 1999-06-28
EP99310260.7 1999-12-20
EP99310260 1999-12-20

Publications (1)

Publication Number Publication Date
WO2000073233A1 true WO2000073233A1 (fr) 2000-12-07

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EP (1) EP1198429A1 (fr)
AU (1) AU5526200A (fr)
WO (1) WO2000073233A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002051766A1 (fr) * 2000-12-22 2002-07-04 Paroc Group Oy Ab Matiere premiere servant a produire des fibres minerales
WO2012083335A1 (fr) * 2010-12-22 2012-06-28 Asamer Basaltic Fibers Gmbh Prétraitement de matériau brut pour la fabrication de fibres de basalte
WO2012083334A3 (fr) * 2010-12-22 2012-09-07 Asamer Basaltic Fibers Gmbh Matière première pour la fabrication de fibres de basalte
WO2012140173A1 (fr) * 2011-04-13 2012-10-18 Rockwool International A/S Procédés pour former des fibres vitreuses artificielles
CN103052603A (zh) * 2010-07-30 2013-04-17 罗克伍尔国际公司 在生产矿棉中用作矿物加料的压实体
WO2013087251A3 (fr) * 2011-12-16 2013-08-15 Rockwool International A/S Composition de matière fondue pour la production de fibres vitreuses synthétiques
CN103492639A (zh) * 2011-03-14 2014-01-01 罗克伍尔国际公司 石纤维的应用
JP2014511820A (ja) * 2011-04-12 2014-05-19 ケーシーシー コーポレーション カンパニー リミテッド 生溶解性ミネラルウール繊維組成物およびミネラルウール繊維
CN107473594A (zh) * 2017-06-20 2017-12-15 安徽梦谷纤维材料科技有限公司 一种高品质玄武岩纤维的加工工艺
CN108238715A (zh) * 2018-01-12 2018-07-03 江苏巨盈节能环保科技有限公司 一种无机纤维保温板及其制备方法
US11192819B2 (en) 2017-02-24 2021-12-07 Knauf Insulation Sprl Mineral wool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001947A1 (fr) * 1981-12-04 1983-06-09 Us Commerce Fibres de verre resistantes aux alkalis
US4483930A (en) * 1983-02-22 1984-11-20 Combustion Engineering, Inc. Ceramic fiber composition
WO1998015503A1 (fr) * 1996-10-07 1998-04-16 Owens Corning Procede de fabrication de fibres de laine minerale et fibres obtenues a l'aide dudit procede

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536122C2 (de) * 1975-08-13 1983-12-08 Schmelzbasaltwerk Kalenborn - Dr.-Ing. Mauritz KG, 5461 Vettelschoß Verfahren zum Einsatz von Basalt in Schmelzöfen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001947A1 (fr) * 1981-12-04 1983-06-09 Us Commerce Fibres de verre resistantes aux alkalis
US4483930A (en) * 1983-02-22 1984-11-20 Combustion Engineering, Inc. Ceramic fiber composition
WO1998015503A1 (fr) * 1996-10-07 1998-04-16 Owens Corning Procede de fabrication de fibres de laine minerale et fibres obtenues a l'aide dudit procede

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1198429A1 *

Cited By (19)

* Cited by examiner, † Cited by third party
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HRP20030416B1 (en) * 2000-12-22 2008-06-30 Paroc Oy Ab Raw material for the production of mineral fibres
WO2002051766A1 (fr) * 2000-12-22 2002-07-04 Paroc Group Oy Ab Matiere premiere servant a produire des fibres minerales
CN103052603A (zh) * 2010-07-30 2013-04-17 罗克伍尔国际公司 在生产矿棉中用作矿物加料的压实体
US9073780B2 (en) 2010-12-22 2015-07-07 Asa.Tec Gmbh Raw material for producing basalt fibers
WO2012083335A1 (fr) * 2010-12-22 2012-06-28 Asamer Basaltic Fibers Gmbh Prétraitement de matériau brut pour la fabrication de fibres de basalte
WO2012083334A3 (fr) * 2010-12-22 2012-09-07 Asamer Basaltic Fibers Gmbh Matière première pour la fabrication de fibres de basalte
CN103502160A (zh) * 2010-12-22 2014-01-08 阿萨默玄武岩纤维有限公司 用于制备玄武岩纤维的初始材料的预处理
CN103492639B (zh) * 2011-03-14 2016-07-06 罗克伍尔国际公司 石纤维的应用
CN103492639A (zh) * 2011-03-14 2014-01-01 罗克伍尔国际公司 石纤维的应用
JP2014511820A (ja) * 2011-04-12 2014-05-19 ケーシーシー コーポレーション カンパニー リミテッド 生溶解性ミネラルウール繊維組成物およびミネラルウール繊維
WO2012140173A1 (fr) * 2011-04-13 2012-10-18 Rockwool International A/S Procédés pour former des fibres vitreuses artificielles
EA026878B1 (ru) * 2011-04-13 2017-05-31 Роквул Интернэшнл А/С Способ производства искусственных стекловидных волокон
US9012342B2 (en) 2011-12-16 2015-04-21 Rockwool International A/S Melt composition for the production of man-made vitreous fibres
EP2791071B1 (fr) 2011-12-16 2016-03-30 Rockwool International A/S Composition de matière fondue pour la production de fibres vitreuses synthétiques
WO2013087251A3 (fr) * 2011-12-16 2013-08-15 Rockwool International A/S Composition de matière fondue pour la production de fibres vitreuses synthétiques
EA025519B1 (ru) * 2011-12-16 2016-12-30 Роквул Интернэшнл А/С Композиция расплава для изготовления искусственных стекловидных волокон
US11192819B2 (en) 2017-02-24 2021-12-07 Knauf Insulation Sprl Mineral wool
CN107473594A (zh) * 2017-06-20 2017-12-15 安徽梦谷纤维材料科技有限公司 一种高品质玄武岩纤维的加工工艺
CN108238715A (zh) * 2018-01-12 2018-07-03 江苏巨盈节能环保科技有限公司 一种无机纤维保温板及其制备方法

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