DE29915333U1 - Conditioner for tin compounds in hydraulically setting masses - Google Patents
Conditioner for tin compounds in hydraulically setting massesInfo
- Publication number
- DE29915333U1 DE29915333U1 DE29915333U DE29915333U DE29915333U1 DE 29915333 U1 DE29915333 U1 DE 29915333U1 DE 29915333 U DE29915333 U DE 29915333U DE 29915333 U DE29915333 U DE 29915333U DE 29915333 U1 DE29915333 U1 DE 29915333U1
- Authority
- DE
- Germany
- Prior art keywords
- tin
- rocks
- conditioner
- compounds
- hydraulically setting
- 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.)
- Expired - Lifetime
Links
- 150000003606 tin compounds Chemical class 0.000 title description 4
- 239000011435 rock Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000002808 molecular sieve Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000010454 slate Substances 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- -1 zeolites Chemical compound 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000010884 boiler slag Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 230000000888 organogenic effect Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1075—Chromium-free or very low chromium-content materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
Es ist aus der Patentliteratur bekannt, dass Eisen II - und Zinn II - verbindungen hochgiftige Chrom VI - ionen in die gesundheitlich unbedenklichen Chrom III - ionen umwandelt. Besonders die Zinn II -verbindungen sind extrem wirksam bei der Reduktion des Chrom VI in stark alkalischen Lösungen wie in der Zementmatrix.It is known from the patent literature that iron II and tin II compounds convert highly toxic chromium VI ions into chromium III ions, which are harmless to health. Tin II compounds in particular are extremely effective in reducing chromium VI in strongly alkaline solutions such as in the cement matrix.
Die für die Reduktion des Chromates in hydraulisch abbindenden Massen benutzten Zinnverbindungen , wie z.B. Zinn II-sulfat sind hygroskopisch.The tin compounds used for the reduction of chromate in hydraulically setting masses, such as tin II sulfate, are hygroscopic.
Die Tatsache der Hygroskopizität beinhaltet zwei wesentliche Nachteile des Reduktors . Erstens wird die Lagerzeit wesentlich verkürzt, durch eine mögliche Autooxidation ( Sn2+ —> Sn4+ ) die bei Zutritt von Feuchtigkeit zum Zinnsystem verursacht wird. Zweitens ist durch die hygroskopischen Eigenschaften der Zinnverbindungen keine genaue Dosierung möglich .Um nun eine genaue Dosierung des Zinnreduktors zu ermöglichen, und gleichzeitig die Autooxidation auszuschalten und damit die Lagerfähigst in hydraulisch abbindenden Massen zu ermöglichen und zu gewährleisten, ist es nötig den Zinnverbindungen durch Zumischung bestimmter Stoße diese Fähigkeit zu verleihe.The fact that the reductant is hygroscopic has two major disadvantages. Firstly, the storage time is significantly shortened by possible auto-oxidation (Sn 2+ -> Sn 4+ ) which is caused by the ingress of moisture into the tin system. Secondly, the hygroscopic properties of the tin compounds mean that precise dosing is not possible. In order to enable precise dosing of the tin reductant and at the same time to eliminate auto-oxidation and thus enable and guarantee storage in hydraulically setting masses, it is necessary to give the tin compounds this ability by adding certain additives.
Diese Zumischprodukte sind u.a. Molekularsiebe. Die Molekularsiebe können aus der Familie der Zeolithe , Tone oder ganz allgemein aus Effusivgesteine, Ergussgesteine, Vulkanite, klassische und/oder organogene Sedimentgesteine sowie chemische Sedimente, metamorphe Gesteine und Gesteine der Regionalmetamorphose sein. Es können aber auch Stoffe aus der technischen Herstellung wie z.B. Blähten, Blähschiefer bzw. Keramik sein. Eine Verbesserung des beschriebenen Verhaltens wird bereits durch Zumischung von Industrieabfallprodukten wie Glashohlkugeln, Flugaschen, Elektrofilteraschen, Ferrosilicium, Mikrosilikaten, Kesselschlacke, Kesselasche, Hochofenschlacke, Hüttensande, Kalksteinmehl, Anhydriten aus der Flusssäureherstellung erreicht.These admixture products include molecular sieves. The molecular sieves can be from the family of zeolites, clays or, more generally, from effusive rocks, igneous rocks, volcanic rocks, classic and/or organogenic sedimentary rocks as well as chemical sediments, metamorphic rocks and rocks from regional metamorphism. They can also be materials from technical production such as expanded clay, expanded shale or ceramics. An improvement in the described behavior can already be achieved by admixing industrial waste products such as hollow glass spheres, fly ash, electrostatic precipitator ash, ferrosilicon, microsilicates, boiler slag, boiler ash, blast furnace slag, granulated blast furnace slag, limestone powder and anhydrites from hydrofluoric acid production.
-2--2-
Prinzipiell sind alle Stoffe geeignet die selbst einen niedrigen Feuchtigkeitsgehalt aufweisen und die geeignet sind den Feuchtigkeitsgehalt zu reduzieren ( Depotwirkung ) und die Rieselfähigkeit des Produktes zu erhöhen. Weiterhin eignen sich durch Zumischungfolgende Stoffe:In principle, all substances that have a low moisture content themselves and that are suitable for reducing the moisture content (depot effect) and increasing the flowability of the product are suitable. The following substances are also suitable for admixture:
Trass, Bims, Tuffe, Puzzolane, Füllte - Glashohlkugeln, Dolomit, Korund, Sandstein, Schiefer, Mergel, Kreide, Grauwacke, Kaolin, Phonolithe, Vulkanite, Effusivgesteine, Intrusivgesteine, Gas - und Schaumbetonmehl und Granulate, Metalloxide, aufgeschäumtes Polystyrol, Silikate sowie andere Sulfate, Sulfide, Phosphate, Nitrate, Nitrite und Carbonate. Industrieabfallprodukte : Glashohlkugeln, Flugaschen, Elektrofilteraschen, Ferrosilicium, Mikrosilikaten, Kesselschlacke, Kesselasche, Elektrofilterschlacken, Hüttensande, Kalksteinmehle , Anhydrite aus der Flusssäureherstellung. Trass, pumice, tuff, pozzolan, filled glass hollow spheres, dolomite, corundum, sandstone, slate, marl, chalk, greywacke, kaolin, phonolites, volcanic rocks, effusive rocks, intrusive rocks, gas and foam concrete powder and granules, metal oxides, expanded polystyrene, silicates and other sulfates, sulfides, phosphates, nitrates, nitrites and carbonates. Industrial waste products: hollow glass spheres, fly ash, electrostatic precipitator ash, ferrosilicon, microsilicates, boiler slag, boiler ash, electrostatic precipitator slag, granulated blast furnace slag, limestone powder, anhydrites from hydrofluoric acid production.
Besonders gut geeignet sind die natürlichen Zeolithe welche in verschiedenen Abmischungen, je nach Produkt und Kundenanforderung, zugemischt werden kann .Eine der möglichen Rezepturen ist ein Gemisch aus 90 % Zeolith und 10% Zinnsulfat oder auch 90% Zinnsulfat und 10 % Zeolith . Im Rahmen dieser Mischmöglichkeiten wird das Produkt oder hydraulisch abbindenden Massen wie auch als eigenständige Zinn II - basierende Produkte gewährleistet. Dadurch ist die Möglichkeit geschaffen statistisch genau den Reduktor zu dosieren und gleichzeitig sicher zu sein, dass tatsächlich überall ein System gleichermaßen die Reduktion des Chromates vollzogen wird. Daraus resultiert, dass der Verbraucher vollständig gegen mögliche Chromallergien ,die bei der Applikation dieser homogenen Zubereitung mit hydraulisch abbindenden Massen auftreten können , geschützt ist. Außerdem wird durch die Mischung sichergestellt, dass keinerlei Feuchtigkeit an das Zinn II - salz gelangt und somit die Lagerstabilität des Produktes über ein Jahr erhalten bleibt. Erst hierdurch kommen alle Vorzüge der Zinn II- verbindungen als Reduktor in hydraulisch abbindenden Massen zum tragen. Der Verbraucher kann absolut sicher sein , ein Produkt zu erhalten , das unter den Praxis relevanten Bedingungen der Lagerung und der Verarbeitung, im Chromatgehalt unter der gesetzlichen Grenze von 2ppm liegt. Natural zeolites are particularly suitable and can be mixed in various ways, depending on the product and customer requirements. One of the possible recipes is a mixture of 90% zeolite and 10% tin sulfate or 90% tin sulfate and 10% zeolite. These mixing options ensure that the product or hydraulically setting masses are available as stand-alone tin II - based products. This makes it possible to dose the reductant statistically precisely and at the same time to be sure that the chromate reduction is actually carried out in the same way everywhere. This means that the consumer is completely protected against possible chromium allergies that can occur when applying this homogeneous preparation with hydraulically setting masses. The mixture also ensures that no moisture gets into contact with the tin II salt, thus maintaining the product's storage stability for over a year. Only in this way do all the advantages of tin II compounds as a reductant in hydraulically setting masses come into play. The consumer can be absolutely certain that he is receiving a product which, under the practical conditions of storage and processing, has a chromate content below the legal limit of 2 ppm.
Dieses System ist so gut, dass der Chromatgehalt bis zum 15-fachen unterhalb des geforderten Grenzwertes von 2ppm eingestellt werden kann.This system is so good that the chromate content can be set up to 15 times below the required limit of 2 ppm.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29915333U DE29915333U1 (en) | 1999-09-01 | 1999-09-01 | Conditioner for tin compounds in hydraulically setting masses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29915333U DE29915333U1 (en) | 1999-09-01 | 1999-09-01 | Conditioner for tin compounds in hydraulically setting masses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29915333U1 true DE29915333U1 (en) | 2000-04-27 |
Family
ID=8078311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29915333U Expired - Lifetime DE29915333U1 (en) | 1999-09-01 | 1999-09-01 | Conditioner for tin compounds in hydraulically setting masses |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29915333U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004052806A1 (en) * | 2002-12-11 | 2004-06-24 | Dyckerhoff Ag | Physiologically-effective industrial protective means |
| EP1713739A2 (en) * | 2004-02-04 | 2006-10-25 | W.R. Grace & Co.-Conn. | Liquid additive for intergrinding cement |
| US7128782B2 (en) | 2003-11-21 | 2006-10-31 | W.R. Grace & Co.-Conn. | Sulfate dispersion chromate reducer |
-
1999
- 1999-09-01 DE DE29915333U patent/DE29915333U1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004052806A1 (en) * | 2002-12-11 | 2004-06-24 | Dyckerhoff Ag | Physiologically-effective industrial protective means |
| US7128782B2 (en) | 2003-11-21 | 2006-10-31 | W.R. Grace & Co.-Conn. | Sulfate dispersion chromate reducer |
| EP1713739A2 (en) * | 2004-02-04 | 2006-10-25 | W.R. Grace & Co.-Conn. | Liquid additive for intergrinding cement |
| EP1713739A4 (en) * | 2004-02-04 | 2010-04-14 | Grace W R & Co | Liquid additive for intergrinding cement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20000531 |
|
| R081 | Change of applicant/patentee |
Owner name: GRACE BAUPRODUKTE GMBH, DE Free format text: FORMER OWNER: ABC- ANGERSDORFER BAUCHEMIE GMBH, 06179 ANGERSDORF, DE Effective date: 20011112 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20021016 |
|
| R081 | Change of applicant/patentee |
Owner name: GRACE BAUPRODUKTE GMBH, DE Free format text: FORMER OWNER: TRICOSAL BETON-CHEMIE GMBH & CO. KG, 32676 LUEGDE, DE Effective date: 20040325 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20050909 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20071010 |
|
| R071 | Expiry of right |