CN1273505A - Biodegradable mineral wool composition - Google Patents
Biodegradable mineral wool composition Download PDFInfo
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- CN1273505A CN1273505A CN99801073.1A CN99801073A CN1273505A CN 1273505 A CN1273505 A CN 1273505A CN 99801073 A CN99801073 A CN 99801073A CN 1273505 A CN1273505 A CN 1273505A
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- mineral wool
- mgo
- cao
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- condition
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- 239000011490 mineral wool Substances 0.000 title claims abstract description 41
- 239000000203 mixture Substances 0.000 title description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 238000004090 dissolution Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000002609 medium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000001963 growth medium Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 20
- 239000000377 silicon dioxide Substances 0.000 abstract description 10
- 229910052681 coesite Inorganic materials 0.000 abstract description 5
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 5
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 5
- 229910052682 stishovite Inorganic materials 0.000 abstract description 5
- 229910052905 tridymite Inorganic materials 0.000 abstract description 5
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 12
- 230000007935 neutral effect Effects 0.000 description 9
- 239000010425 asbestos Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 229910052895 riebeckite Inorganic materials 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 4
- 230000003176 fibrotic effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000338 in vitro Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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
- C03C2213/00—Glass fibres or filaments
- C03C2213/02—Biodegradable glass fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Cultivation Of Plants (AREA)
- Hydroponics (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention concerns a mineral wool capable of dissolving in a physiological medium, comprising the following constituents in weight percentages as follows: SiO2 38-46 %; Al2O3 16-24 %; MgO 10-20 %; RO (CaO + MgO) 16-40 %; MgO/CaO = 0.8 %; R2O (Na2O + K2O) = 0.3 %; P2O5 0-5 %; Fe2O3(total iron) = 0.5 %; TiO2 0-3 %; MnO 0-2 %; SO3 0-2 %.
Description
The present invention relates to artificial mineral wool (mineral wool) field.More specifically, the objective of the invention is to be intended for use to prepare mineral wool heat insulation and/or sound insulating material or soilless culture medium matter.
More specifically, the present invention relates to the mineral wool of asbestos or basalt wool type, promptly under its fiberization temperature, have the Chemical composition that of high liquidus temperature and high fluidity.
By convention, such mineral wool is to make it fibrillatable by so-called " outward " centrifugal process, and for example those use the tandem centrifugal wheel, add the type of melted material by a kind of constant transmissions device, particularly as patent EP-0,465,310 and EP-0, described in 439,385.
In recent years, on known industry and economic feasibility standard and quality level standard, increased the biodegradability standard of mineral wool, promptly it is dissolved in a kind of ability of Physiological Medium rapidly, may assemble relevant potential pathogenic risk in vivo so that prevent any and fine fibre inhalation (inhalatio).
Therefore the objective of the invention is to improve the chemical composition of the mineral wool of rock or basalt type, improved purpose especially is to increase its biodegradability, and/or makes biodegradability and to make it Fibrotic ability by outer centrifugal process (but do not get rid of other fibrillatable method) consistent.
The objective of the invention is to a kind of mineral wool that dissolves in Physiological Medium, it comprises following component, and the percentage by weight of each component is as follows: SiO
238-46% especially is at least 40%, Al
2O
316-24%RO (CaO and/or MgO) 16-40%MgO 10-20%MgO/CaO 〉=0.8 (or 〉=0.70, especially 〉=0.75) R
2O (Na
2O and/or K
2O) 〉=0.3%P
2O
50-5%Fe
2O
3(total iron) 〉=0.5%TiO
20-3%MnO 0-2%SO
30-2% (in the remainder of this paper, arbitrary percentages of ingredients all is interpreted as the percentage by weight that refers in the composition).
Select this composition very favourable, particularly by changing many complexing actions by a large amount of specific group branch performances.
Like this, the present invention relates to a kind of mineral wool composition of asbestos type, wherein, basically with Na
2O and/or K
2Alkali metal oxide (the R that the O form exists
2O) content limited or even lower, generally be less than 6%; Simultaneously, the content of the alkaline earth oxide (RO) that exists with CaO and/or MgO form is higher basically, generally is at least 20%, even at least greater than 22%.
Optional MnO, TiO
2And SO
3Content be considered to be at the content of common impurity in this group composition, generally speaking, total amount that can found all impurity in the composition is up to 3%.
Viscosity during this composition fibrillatable is suitable for outer centrifugal process.
About its biodegradability, we know, especially in the composition of asbestos type, and certain compound, for example P
2O
5, can improve its biodegradability greatly, but as if other oxide antithesis, when neutral pH, have the tendency that reduces its biodegradability at least.For example, but referenced patent EP-0,459,897 and WO93/22251.But, do not confirm a large amount of P of adding in the context of the present invention
2O
5It is the best approach.This is because can there be other to consider, for example consideration (P economically
2O
5Come from expensive raw material), technical consideration is also arranged--for example in composition, P
2O
5Can cause that with the change of aluminium oxide percentage other characteristic of composition changes according to undesirable or unknown mode.Therefore, the same with aluminium oxide, P
2O
5Be not the viscosity that does not influence composition.But, by be beneficial to most the present invention applied outside centrifugal process come under the situation of composition of the cotton type of fiber fossil, the viscosimetric analysis performance of said composition is a major criterion to be controlled.
As if in addition, though some compound can help certain specific character, be unfavorable for obtaining the biodegradability of height, this is the same with the situation of iron, for example, iron can make mineral wool that higher fire line is arranged, but it tends to reduce the biodegradability of asbestos.Perhaps the situation with aluminium oxide is the same, though it can regulate the viscosity of composition, may not too help biological dissolution, especially when measuring by in vitro test under condition of neutral pH.
Therefore, the present invention has formed an optimal compromise method between all these data, and basically according to following manner: composition can comprise P
2O
5But content is limited, is at most 5% or even be at most 4%.It also comprises a spot of ferriferous oxide at least, and this can be proved to be favourable (perhaps being inevitable) under micro-condition, but is not because the cause of biodegradability.But by alternate manner, particularly by changing the percentage of the corresponding M gO relevant with CaO, the biodegradability of composition can reach high level, and need not to add the P of extra quantity
2O
5, perhaps even fully do not add P
2O
5(perhaps arbitrary other special compound that helps biodegradability that is counted as).In fact, the lime CaO content that is comprised in the composition of asbestos type is usually very significantly greater than MgO content.By revising this ratio, we have found that: up to now, for " compensation " significant aluminium oxide and/or iron content, only at P
2O
5Under the condition of high-load, just can reach high-caliber biodegradability.Replenish a bit (being not unimportant), should be understood that P
2O
5The benefit of low content, promptly too many P
2O
5In fact tend to increase the liquidus temperature of composition.
Another characteristic aspect of the present invention relates to makes specific MgO/CaO ratio combine with quite high alumina content, and this is because alumina content is at least 16%.We have found that: no matter be to measure by in vitro test under neutral pH or the condition at acid pH, this combination can both gratifyingly reach the biological dissolution standard.In fact, any pH can represent the body physiological medium, and lung areas especially, this problem finally solve as yet.Up to the present as if, higher alumina content helps composition dissolving rapidly under condition of acidic pH, but situation is then different under condition of neutral pH.
High-load by selective oxidation aluminium, especially by regulating the content of alkaline earth oxide, no matter (at least external mensuration time) under which kind of pH condition, the present invention may obtain the biological dissolution of higher level, so that keep it under condition of acidic pH rather than the advantageous effect under condition of neutral pH.
Should be pointed out that SiO
2+ Al
2O
3Total amount make us can control the viscosimetric analysis performance of said composition greatly, and preferably be at least 58%, especially be 59～64%.
Advantageously, in the mineral wool composition of the present invention, the content of alkaline earth oxide (CaO and/or MgO) RO is 18～32%, for example is 26～30%, perhaps greater than 32%, is up to 40%.
Similarly, according to the first embodiment of the present invention, ferriferous oxide Fe
2O
3Content can be very limited, especially be 0.5～1.7% (this usually and RO high-load combine) greater than 32%.This low content might be known as the composition of " white wool " sometimes, and it especially is sprayed onto in the mineral wool of building on the composition with being applied in.
According to second embodiment, iron content is higher, Fe
2O
3Content especially greater than 1.7%, be up to 12%, preferred Fe
2O
3Be 5～10% or 5～8% (common RO content with 18～32% combines).As mentioned above, iron especially can make mineral wool have high fire line.In this embodiment, mineral wool is collected with the form of felt usually.
Advantageously, R
2O oxide (Na
2O and/or K
2O) content can especially greater than 1%, almost be up to 6% for 0.3～1% (being purpose to prepare above-mentioned white wool preferably) or bigger, for example is at least 2～2.2% or 1～3%.
Advantageously, the present composition also satisfies following relationship, represents with the percentage by weight ratio: MgO/CaO especially greater than 0.95 or 1 or 1.15, is at most 2 or 3 greater than 0.85 usually.Like this, do not need MgO than the excessive above-mentioned advantageous effects (obtain these raw material oxides and need extra-pay and complex operations) that much just can reach of CaO.As mentioned above, also have the possibility of the MgO/CaO that adopts a little low ratio, for example ratio is 0.75～0.80.
Equally advantageously, the present composition can satisfy following relationship: R
2O/Al
2O
3=0.07～0.8, be preferably 0.09～0.3, or 0.05～0.2.
P in the preferred present composition
2O
5Content greater than 0.1%, especially be up to 2～3%.This proper content is very beneficial for biodegradability, simultaneously this compound is not had economically loss, perhaps its liquidus temperature is not had too big influence.
According to another one embodiment, P
2O
5Content is lower, especially is zero or big a little, is up to 0.1%.
The oxidation of composition for example can be controlled by selecting to add manganese oxide (MnO), and its content especially is 0.1～4%.
Can select to add boron oxide, content especially is 0.1～5%, and it can improve the thermal insulation of mineral wool, especially by reducing the thermal conductivity factor of its radiation component.
Also can choose wantonly in the composition and comprise TiO
2, it can be used as a kind of impurity or is deliberately added, and for example quantity is up to 1～2%.And P
2O
5The same, SO
3Also can be regarded as a kind of impurity, especially be limited in less than 0.1% the time when its content.
CaO content is preferably and is less than or equal to 22% in the present composition, especially is at least 10%, and advantageously 11～18%, perhaps be greater than 18%-21%.
Similarly, MgO content preferably is at least 11% in the composition, and is at most 19% usually, and preferable range is 12～15%.
According to a non-limiting preferred embodiment of the present invention, aluminium oxide (Al in the composition
2O
3) content is at least 18.5%, especially be at least 19%, even be at least 20% or 21%.
T
Log1-T
LiqDifference preferably be at least 10 ℃, preferably be at least 20 or 30 ℃.This difference has defined the present composition " working range ", can more specifically is to make it Fibrotic temperature range by outer centrifugal process by Fibrotic temperature range.
As mentioned above, no matter the pH of assay method is neutral, alkalescent or acidity, and the biological dissolution of this mineral wool all reaches gratifying level.
Like this, when measuring under the pH value is 4.5 condition, the rate of dissolution of mineral wool of the present invention generally is at least 30ng/cm
2/ hr preferably is at least 40 even 50ng/cm
2/ hr (when especially measuring) with silica; When measuring under the pH value is 7.5 condition, its rate of dissolution is at least 30ng/cm
2/ hr preferably is at least 40 even 50ng/cm at least
2/ hr (when especially measuring) with silica.
Generally speaking, when measuring under the pH value is 4.5 condition, the rate of dissolution of this mineral wool is at least 30ng/cm
2/ hr preferably is at least 40 even 50ng/cm
2/ hr; When measuring under the pH value is 6.9 condition, its rate of dissolution is at least 30ng/cm
2/ hr preferably is at least 40 even 50ng/cm
2/ hr (same, when especially measuring) with silica.
Generally speaking, when measuring under the pH value is 7.5 condition, the rate of dissolution of this mineral wool also is at least 60ng/cm
2/ hr especially is at least 80ng/cm
2/ hr; And/or when measuring under pH is 6.9 and/or 7.5 condition, its rate of dissolution also is at least 40ng/cm
2/ hr especially is at least 60ng/cm
2/ hr (when especially measuring) with silica.
This mineral wool mainly is used to prepare heat insulation and/or sound insulation product or soilless culture medium matter.Purpose of the present invention also is to comprise to small part any product of above-mentioned mineral wool.
Further details and advantageous feature will be described in following preferred non-limiting embodiments.
1 chemical composition that has provided among 15 embodiment by weight percentage of tabulating down.
When the total content of all compounds slightly less than 100% the time, be interpreted as: residue content is corresponding to minor impurity/compounds content (non-quantitation detection), this content is at most 0.5%～1%, and/or just because approved approximate in the analytical method that adopt in this field.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | |
| ?SiO 2 | ?45.1 | ?43.7 | ?42.2 | ?40.6 | ?42.0 | ?41.2 | ?45.4 | ?42.7 |
| ?Al 2O 3 | ?18.1 | ?19.9 | ?21.7 | ?23.5 | ?18.3 | ?17.0 | ?17.4 | ?18.5 |
| ?Fe 2O 3 | ?6.3 | ?6.5 | ?6.8 | ?7.2 | ?8.8 | ?0.7 | ?5.7 | ?5.4 |
| ?CaO | ?13.9 | ?13.7 | ?13.5 | ?13.3 | ?11.0 | ?21.0 | ?14.8 | ?17.6 |
| ?MgO | ?13.0 | ?12.7 | ?12.3 | ?11.9 | ?12.0 | ?18.5 | ?13.3 | ?14.6 |
| ?Na 2O | ?1.9 | ?1.9 | ?1.8 | ?1.7 | ?2.6 | ?0.1 | ?1.8 | ?1.7 |
| ?K 2O | ?0.5 | ?0.5 | ?0.4 | ?0.40 | ?1.6 | ?0.3 | ?0.4 | ?0.4 |
| ?P 2O 5 | ?0.1 | ?0.1 | ?0.1 | ?0.1 | ?0.5 | ?0 | ?0 | ?0 |
| ?TiO 2 | ?0.6 | ?0.7 | ?0.8 | ?0.9 | ?2.6 | ?0.8 | ?0.8 | ?0.7 |
| ?MnO | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.1 | ?0.2 | ?0.2 |
| ?SO 3 | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.3 | ?0.3 | ?0.1 | ?0.1 |
| Amount to | ?100 | ?100 | ?100 | ?100 | ?100 | ?100 | ?100 | ?100 |
| ?CaO+ ?MgO(RO) | ?26.9 | ?26.4 | ?25.8 | ?25.2 | ?23 | ?39.0 | ?28.0 | ?32 |
| ?Na 2O+ ?K 2O(R 2O) | ?2.4 | ?2.4 | ?2.2 | ?2.1 | ?4.2 | ?0.4 | ?2.2 | ?2.1 |
| ?MgO/CaO | ?0.93 | ?0.93 | ?0.91 | ?0.89 | ?1.09 | ?0.88 | ?0.9 | ?0.83 |
| ?R 2O/Al 2O 3 | ?0.13 | ?0.12 | ?0.10 | ?0.09 | ?0.23 | ?0.02 | ?0.13 | ?0.13 |
Table 1 (continuing)
| Embodiment 9 | Embodiment 10 | Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | Embodiment 15 | |
| ?SiO 2 | ?44.8 | ?42.8 | ?41.5 | ?42.9 | ?41.8 | ?41.0 | ?40.8 |
| ?Al 2O 3 | ?17.9 | ?20 | ?22.1 | ?20.1 | ?21.2 | ?22.2 | ?22.8 |
| ?Fe 2O 3 | ?7.7 | ?8 | ?8.6 | ?8.2 | ?8.5 | ?8.4 | ?8.8 |
| ?CaO | ?13.3 | ?13.2 | ?12.6 | ?12.9 | ?12.7 | ?12.8 | ?12.3 |
| ?MgO | ?13.2 | ?12.9 | ?12.3 | ?12.7 | ?12.5 | ?12.4 | ?12 |
| ?Na 2O | ?1.9 | ?1.8 | ?1.7 | ?2 | ?2 | ?1.9 | ?2.0 |
| ?K 2O | ?0.4 | ?0.4 | ?0.4 | ?0.4 | ?0.4 | ?0.4 | ?0.4 |
| ?P 2O 5 | ?0.05 | ?0.05 | ?0.05 | ?0.06 | ?0.06 | ?0.05 | ?0.06 |
| ?TiO 2 | ?0.5 | ?0.6 | ?0.7 | ?0.6 | ?0.7 | ?0.7 | ?0.7 |
| ?MnO | ?0.18 | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.2 |
| ?SO 3 | ?- | ?- | ?- | ?- | ?- | ?- | ??- |
| Amount to | ?99.9 | ?99.9 | ?100.1 | ?100.1 | ?100.1 | ?100.1 | ?100.1 |
| ?CaO+ ?MgO(RO) | ?26.5 | ?26.1 | ?24.9 | ?25.6 | ?25.2 | ?25.2 | ?24.3 |
| ?Na 2O+ ?K 2O(R 2O) | ?2.3 | ?2.2 | ?2.1 | ?2.4 | ?2.4 | ?2.3 | ?2.4 |
| ?MgO/CaO | ?0.99 | ?0.98 | ?0.98 | ?0.98 | ?0.98 | ?0.97 | ?0.98 |
| ?R 2O/Al 2O 3 | ?0.13 | ?0.11 | ?0.10 | ?0.12 | ?0.11 | ?0.10 | ?0.1 |
Composition among these embodiment is next Fibrotic by outer centrifugal process, especially according to mode mentioned in the above-mentioned patent.
Their working range is by T
Log1-T
LiqDifference define, be fully on the occasion of.
The MgO/CaO ratio of all compositions is all greater than 0.8, even greater than 0.85, and P
2O
5Content very limited (less than 1%) or be zero.They also all contain the aluminium oxide of high-load, are approximately 17～23%.Except embodiment 6, all embodiment contain about 6～8% Fe
2O
3The contained iron of embodiment 6 is considerably less, and contains a large amount of alkaline earth oxides, can prepare aforesaid " white " asbestos.
Their biodegradability is gratifying, especially measures under neutrality or faintly acid pH (pH6.9 or pH7.5) or acid pH (4.5) condition.
2 measurement results that provided silica rate of dissolution in the mineral wool of embodiment 9,10 and 11 of tabulating down are with " K
SiO2" represent that unit is ng/cm
2/ hr: → according to the in vitro test of in a kind of acid pH (4.5) buffer solution (being known as " acidic fluid "), carrying out; → according to the in vitro test of in a kind of pH is approximately 7.4～7.5 buffer solution (being known as " neutral fluid "), carrying out;
Table 2
| Acidic fluid | Neutral fluid | |
| K SiO2(embodiment .9) | ???????35 | ??????32 |
| K SiO2(embodiment .10) | ???????58 | ??????45 |
| K SiO2(embodiment .11) | ???????83 | ??????52 |
As if show from these results: alumina content is high more, and then the rate of dissolution under condition of acidic pH is high more, and under condition of neutral pH too, just degree is low a little.
The embodiment of two additional compositions, embodiment 16 and 17 satisfies above-mentioned formula MgO/CaO=0.75, also is proved to be useful.
At length provided the composition identical in 3 tabulating down with table 1 component.
Table 3
| Embodiment 16 | Embodiment 17 | |
| ?SiO 2 | ??????42 | ??????42 |
| ?Al 2O 3 | ??????19 | ??????22 |
| ?CaO | ??????16 | ??????16 |
| ?MgO | ??????12 | ??????12 |
| ?Na 2O | ??????0.5 | ??????1 |
| ?K 2O | ???????2 | ?????0.5 |
| ?Fe 2O 3 | ??????7.5 | ?????5.7 |
| Amount to | ??????99 | ?????99.2 |
| ?CaO+MgO | ??????28 | ??????28 |
| ?Na 2O+K 2O | ??????2.5 | ?????1.5 |
| ?MgO/CaO | ?????0.75 | ?????0.75 |
| ?R 2O/Al 2O 3 | ?????0.13 | ?????0.07 |
Claims (16)
1. dissolve in a kind of mineral wool of Physiological Medium, it is characterized in that it comprises following each component by weight percentage: SiO
238-46% especially is at least 40%, Al
2O
316-24%MgO 10-20%RO (CaO+MgO) 16-40%MgO/CaO 〉=0.8R
2O (Na
2O+K
2O) 〉=0.3%P
2O
50-5%Fe
2O
3(total iron) 〉=0.5%TiO
20-3%MnO 0-2%SO
30-2%
2. according to the mineral wool of claim 1, it is characterized in that the percentage by weight of the RO oxide (CaO+MgO) that it comprises is as follows:
RO 18～32%, or greater than 32%, are up to 40%.
3. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that the Fe that it comprises
2O
3The percentage by weight of (total iron) is as follows:
0.5～1.7% or greater than 1.7%, be up to 12%.
4. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that the R that it comprises
2O oxide (Na
2O+K
2O) percentage by weight is as follows:
0.3～1%, or, be up to 6% greater than 1%, especially be at least 2 or 2.2%.
5. according to each mineral wool in the claim 1～3, it is characterized in that it satisfies following relationship:
MgO/CaO＞0.85, preferred＞0.95, especially＞1 or＞1.15.
6. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that it satisfies following relationship:
R
2O/Al
2O
3=0.07～0.8, be preferably 0.09～0.3.
7. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that the P that it comprises
2O
5Percentage by weight be 0～0.1%, or, be up to 2% or 3% greater than 0.1%.
8. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that it comprises MnO, especially content is 0.1～4%; And/or comprise B
2O
3, especially content is 0.1～5%.
9. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that the percentage by weight of the MgO that it comprises is as follows:
MgO 〉=11% is 19% especially, is preferably 12～15%.
10. according to the mineral wool in above-mentioned arbitrary claim, it is characterized in that the percentage by weight of the CaO that it comprises is as follows:
CaO=22% is 10% especially, is preferably 11～18%, or greater than 18%,
Be up to 21%.
11. the mineral wool according in above-mentioned arbitrary claim is characterized in that the Al that it comprises
2O
3Percentage by weight as follows:
Al
2O
3〉=18.5%, especially 〉=19% or 〉=20%.
12. the mineral wool according in above-mentioned arbitrary claim is characterized in that: when measuring under the pH value is 4.5 condition, its rate of dissolution is at least 30ng/cm
2/ hr; When measuring under the pH value is 7.5 condition, its rate of dissolution is at least 30ng/cm
2/ hr.
13. the mineral wool according in above-mentioned arbitrary claim is characterized in that: when measuring under the pH value is 4.5 condition, its rate of dissolution is at least 30ng/cm
2/ hr; When measuring under the pH value is 6.9 condition, its rate of dissolution is at least 30ng/cm
2/ hr.
14. the mineral wool according in above-mentioned arbitrary claim is characterized in that: when measuring under the pH value is 4.5 condition, its rate of dissolution is at least 60ng/cm
2/ hr; And/or when measuring under the pH value is 7.5 condition, its rate of dissolution is at least 40ng/cm
2/ hr; And/or when measuring under the pH value is 6.9 condition, its rate of dissolution is at least 40ng/cm
2/ hr.
15., it is characterized in that it makes by outer centrifugal process according to the mineral wool in above-mentioned arbitrary claim.
16. heat insulation and/or sound insulation product or soilless culture medium matter is characterized in that it comprises mineral wool in above-mentioned arbitrary claim to small part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9805707A FR2778400A1 (en) | 1998-05-06 | 1998-05-06 | COMPOSITION OF MINERAL WOOL |
| FR98/05707 | 1998-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1273505A true CN1273505A (en) | 2000-11-15 |
Family
ID=9526074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99801073.1A Pending CN1273505A (en) | 1998-05-06 | 1999-05-04 | Biodegradable mineral wool composition |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP0994648A1 (en) |
| JP (1) | JP2002512817A (en) |
| CN (1) | CN1273505A (en) |
| AR (1) | AR015287A1 (en) |
| AU (1) | AU3527599A (en) |
| BR (1) | BR9906422A (en) |
| CA (1) | CA2295870A1 (en) |
| FR (1) | FR2778400A1 (en) |
| HR (1) | HRP20000009A2 (en) |
| HU (1) | HUP0002499A2 (en) |
| IS (1) | IS5326A (en) |
| NO (1) | NO20000029D0 (en) |
| PL (1) | PL337923A1 (en) |
| SK (1) | SK188999A3 (en) |
| TR (1) | TR200000072T1 (en) |
| WO (1) | WO1999056526A1 (en) |
| ZA (1) | ZA200000071B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863744B (en) * | 2003-10-06 | 2010-12-08 | 圣戈班伊索福公司 | Mineral wool composition |
| CN101516797B (en) * | 2006-09-13 | 2011-01-26 | 圣戈班伊索福公司 | Composition for mineral wool |
| CN106630654A (en) * | 2016-12-22 | 2017-05-10 | 浙江轩鸣新材料有限公司 | Rock wool for household planting |
| CN106746691A (en) * | 2016-12-22 | 2017-05-31 | 浙江轩鸣新材料有限公司 | Microlandschaft carves special rock wool |
| CN108290767A (en) * | 2015-11-09 | 2018-07-17 | 埃科灵公司 | The method for producing rock wool and recyclable cast iron |
| CN114174235A (en) * | 2019-07-25 | 2022-03-11 | 霓佳斯株式会社 | Inorganic fiber, inorganic fiber product, method for producing inorganic fiber product, composition for producing inorganic fiber, and method for producing inorganic fiber |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001237407A1 (en) * | 2000-02-15 | 2001-08-27 | Rockwool International A/S | Man-made vitreous fibres and products containing them |
| WO2003050054A1 (en) | 2001-12-12 | 2003-06-19 | Rockwool International A/S | Fibres and their production |
| EP2354105A1 (en) * | 2010-02-05 | 2011-08-10 | 3B | Glass fibre composition and composite material reinforced therewith |
| KR101477733B1 (en) * | 2011-04-12 | 2014-12-30 | 주식회사 케이씨씨 | Mineral Wool Fiber Composition having improved Bio-Solubility, And Mineral Wool |
| CA2926033C (en) | 2013-10-16 | 2021-06-15 | Rockwool International A/S | Man-made vitreous fibres |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662688B1 (en) * | 1990-06-01 | 1993-05-07 | Saint Gobain Isover | MINERAL FIBERS LIKELY TO DECOMPOSE IN A PHYSIOLOGICAL ENVIRONMENT. |
| FR2690438A1 (en) * | 1992-04-23 | 1993-10-29 | Saint Gobain Isover | Mineral fibers capable of dissolving in a physiological medium. |
| FI960705A (en) * | 1996-02-16 | 1997-08-17 | Paroc Oy Ab | mineral fiber |
-
1998
- 1998-05-06 FR FR9805707A patent/FR2778400A1/en active Pending
-
1999
- 1999-05-04 PL PL99337923A patent/PL337923A1/en unknown
- 1999-05-04 SK SK1889-99A patent/SK188999A3/en unknown
- 1999-05-04 JP JP2000546574A patent/JP2002512817A/en active Pending
- 1999-05-04 CA CA002295870A patent/CA2295870A1/en not_active Abandoned
- 1999-05-04 TR TR2000/00072T patent/TR200000072T1/en unknown
- 1999-05-04 AU AU35275/99A patent/AU3527599A/en not_active Abandoned
- 1999-05-04 HU HU0002499A patent/HUP0002499A2/en unknown
- 1999-05-04 WO PCT/FR1999/001056 patent/WO1999056526A1/en not_active Application Discontinuation
- 1999-05-04 BR BR9906422-7A patent/BR9906422A/en not_active Application Discontinuation
- 1999-05-04 CN CN99801073.1A patent/CN1273505A/en active Pending
- 1999-05-04 EP EP99916985A patent/EP0994648A1/en not_active Withdrawn
- 1999-05-05 AR ARP990102110A patent/AR015287A1/en unknown
- 1999-12-28 IS IS5326A patent/IS5326A/en unknown
-
2000
- 2000-01-05 NO NO20000029A patent/NO20000029D0/en not_active Application Discontinuation
- 2000-01-05 HR HR20000009A patent/HRP20000009A2/en not_active Application Discontinuation
- 2000-01-11 ZA ZA200000071A patent/ZA200000071B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863744B (en) * | 2003-10-06 | 2010-12-08 | 圣戈班伊索福公司 | Mineral wool composition |
| CN101516797B (en) * | 2006-09-13 | 2011-01-26 | 圣戈班伊索福公司 | Composition for mineral wool |
| CN108290767A (en) * | 2015-11-09 | 2018-07-17 | 埃科灵公司 | The method for producing rock wool and recyclable cast iron |
| CN106630654A (en) * | 2016-12-22 | 2017-05-10 | 浙江轩鸣新材料有限公司 | Rock wool for household planting |
| CN106746691A (en) * | 2016-12-22 | 2017-05-31 | 浙江轩鸣新材料有限公司 | Microlandschaft carves special rock wool |
| CN114174235A (en) * | 2019-07-25 | 2022-03-11 | 霓佳斯株式会社 | Inorganic fiber, inorganic fiber product, method for producing inorganic fiber product, composition for producing inorganic fiber, and method for producing inorganic fiber |
| CN114174235B (en) * | 2019-07-25 | 2023-08-29 | 霓佳斯株式会社 | Inorganic fiber, inorganic fiber product, method for producing inorganic fiber product, composition for producing inorganic fiber, and method for producing inorganic fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| SK188999A3 (en) | 2000-07-11 |
| WO1999056526A1 (en) | 1999-11-11 |
| JP2002512817A (en) | 2002-05-08 |
| CA2295870A1 (en) | 1999-11-11 |
| PL337923A1 (en) | 2000-09-11 |
| BR9906422A (en) | 2000-07-11 |
| IS5326A (en) | 1999-12-28 |
| ZA200000071B (en) | 2000-08-01 |
| TR200000072T1 (en) | 2000-11-21 |
| NO20000029L (en) | 2000-01-05 |
| AR015287A1 (en) | 2001-04-18 |
| AU3527599A (en) | 1999-11-23 |
| EP0994648A1 (en) | 2000-04-26 |
| NO20000029D0 (en) | 2000-01-05 |
| HUP0002499A2 (en) | 2000-11-28 |
| HRP20000009A2 (en) | 2000-06-30 |
| FR2778400A1 (en) | 1999-11-12 |
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