DE3347249C1 - Basic, refractory stones or masses containing Celsian, process for their production and their use - Google Patents
Basic, refractory stones or masses containing Celsian, process for their production and their useInfo
- Publication number
- DE3347249C1 DE3347249C1 DE3347249A DE3347249A DE3347249C1 DE 3347249 C1 DE3347249 C1 DE 3347249C1 DE 3347249 A DE3347249 A DE 3347249A DE 3347249 A DE3347249 A DE 3347249A DE 3347249 C1 DE3347249 C1 DE 3347249C1
- Authority
- DE
- Germany
- Prior art keywords
- celsian
- basic
- masses
- stones
- weight
- 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
Links
- 229910001597 celsian Inorganic materials 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 12
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 10
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- -1 ferrous metals Chemical class 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000011133 lead Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011451 fired brick Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 235000013339 cereals Nutrition 0.000 description 10
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052849 andalusite Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 235000019830 sodium polyphosphate Nutrition 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/237—Regenerators or recuperators specially adapted for glass-melting furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
- C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
-
- 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
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Description
Die Erfindung betrifft basische, feuerfeste Steine oder Massen auf der Basis vom Chromerz, Chromerz-Magnesiumoxidmischungen, insbesondere für Schmelzgefäße von NE-Metallen, wie Kupfer, Blei, Nickel oder Ferrolegierungen sowie für Regeneratoren von Glaswannenöfen, ein Verfahren zur Herstellung gebrannter Steine sowie die Verwendung der basischen, feuerfesten Steine oder Massen.The invention relates to basic, refractory bricks or masses based on chrome ore, chrome ore-magnesium oxide mixtures, especially for melting vessels made of non-ferrous metals such as copper, lead, nickel or Ferro alloys as well as for regenerators of glass tank furnaces, a process for the production of fired Stones as well as the use of basic, refractory stones or masses.
Aus der deutschen Patentschrift 5 36 799 sind bereits keramische Massen auf Basis von Celsian, d. h. BaO · AI2O3 · 2 SiO2, bekannt, die eine bessere Basenbeständigkeit der hieraus hergestellten Formkörper besitzen. Diese Massen enthalten jedoch überwiegend die zur Bildung von Celsian notwendigen Bestandteile und keine weiteren Feuerfestmaterialien.Ceramic compositions based on Celsian, ie BaO · Al2O3 · 2 SiO 2 , are already known from German patent specification 5 36 799, the moldings produced from them having better base resistance. However, these masses mainly contain the components necessary for the formation of Celsian and no other refractory materials.
Aufgabe der vorliegenden Erfindung ist die Bereitstellung von basischen, feuerfesten Steinen oder Massen, die eine verbesserte Festigkeit und verbesserte Schlacken- und Infiltrationsbeständigkeit gegenüber flüssigen Nichteisenmetallen und deren Schlacken sowie eine verbesserte Korrosionsbeständigkeit gegenüber alkali- und SC>3-haitigen Ofengasen im Vergleich zu gebrannten oder chemisch gebundenen, basischen Steinen auf Basis von Chromerz und Chromerz-Magnesiasintermischungen besitzen, wobei die erfindungsgemäßen Steine oder Massen ihre vorteilhaften Eigenschaften bereits erreichen, wenn sie bei niedrigeren Temperaturen gebrannt werden oder bei niedrigeren Anwendungstemperaturen eingesetzt werden.The object of the present invention is to provide basic, refractory bricks or masses, which compared to improved strength and improved slag and infiltration resistance liquid non-ferrous metals and their slags as well as improved corrosion resistance Alkaline and SC> 3-containing furnace gases compared to fired or chemically bound, basic ones Stones based on chrome ore and chrome ore-magnesia sinter mixtures have, the invention Stones or masses already achieve their advantageous properties when they are at lower levels Temperatures can be fired or used at lower application temperatures.
Die erfindungsgemäßen basischen, feuerfesten Steine oder Massen sind dadurch gekennzeichnet, daß sie Celsian oder zur Bildung von Celsian bei Brenn- oder Anwendungstemperaturen fähige Bestandteile in einer Menge von 1 bis 20 Gew.-%, berechnet als Bariumoxid, enthalten.The basic, refractory bricks or masses according to the invention are characterized in that they are Celsian or ingredients capable of forming celsian at firing or use temperatures in one Amount of 1 to 20% by weight, calculated as barium oxide, contain.
Gemäß einer bevorzugten Ausführungsform enthalten die erfindungsgemäßen Steine oder Massen Celsian oder zur Bildung von Celsian fähige Bestandteile in einer Menge von 3 bis 8 Gew.-%, berechnet als Bariumoxid. According to a preferred embodiment, the stones or masses according to the invention contain Celsian or ingredients capable of forming celsian in an amount of 3 to 8% by weight calculated as barium oxide.
Gemäß einer weiteren Ausführungsform, welche gebrannte Steine betrifft, sind diese bei 1100 bis 1500°C gebrannt worden.According to a further embodiment, which relates to fired stones, these are at 1100 to 1500 ° C been burned.
Das erfindungsgemäße Verfahren zur Herstellung von gebrannten Steinen ist dadurch gekennzeichnet, daß dem Ausgangsgemisch zur Herstellung der gebrannten Steine Bariumsulfat als zur Bildung von Celsian fähiger und notwendiger Bestandteil zugesetzt wird.The method according to the invention for the production of fired stones is characterized in that that the starting mixture for the production of the fired stones is barium sulfate than for the formation of Celsian capable and necessary component is added.
Die Herstellung der basischen, feuerfesten Steine oder Massen erfolgt in üblicher Weise durch Vermischen der Ausgangsmaterialien, die in geeigneter Korngröße vorliegen. Hierbei werden die Feuerfestmaterialien Chromerz, Magnesiumoxid und Chrommagnesit in einer Korngröße von 0 bis 6 mm, vorteilhafterweise 0 bis 4 mm und bevorzugt 0 bis 3 mm eingesetzt. Unter Chrommagnesit sind hierbei Sintermaterialien aus gebrannten Mischungen von Chromerz und Magnesiumoxid zu verstehen, wobei der MgO-Gehalt des Sintermaterials (Simultansinter) 30 Gew.-% nicht übersteigt. Als Chromerze können die bekannten Chromerze verschiedener Herkunft verwendet werden, beispielsweise philippinisches Chromerz. Magnesiumoxid wird üblicherweise als Magnesiasinter eingesetzt.The production of the basic, refractory bricks or masses takes place in the usual way by mixing of the starting materials, which are present in a suitable grain size. This is where the refractory materials Chrome ore, magnesium oxide and chrome magnesite with a grain size of 0 to 6 mm, advantageously 0 up to 4 mm and preferably 0 to 3 mm. Here, chromium magnesite includes sintered materials made from fired Mixtures of chrome ore and magnesium oxide are to be understood, with the MgO content of the sintered material (Simultaneous sintering) does not exceed 30% by weight. The known chrome ores can be of various types as chrome ores Origin are used, for example Filipino chrome ore. Magnesium oxide is commonly used used as magnesia sinter.
Der in den erfindungsgemäßen Steinen oder Massen enthaltene Celsian wird vorzugsweise in gemahlener Form, d. h. mit einer Korngröße von 0 bis 0,6 mm eingesetzt. Falls in den basischen, feuerfesten Steinen oder Massen der Celsian nicht als fertig vorgebildetes Produkt, sondern in Form der zur Bildung von Celsian bei Brenntemperaturen oder Anwendungstemperaturen der erfindungsgemäßen Steine oder Massen fähigen Bestandteile zugesetzt wird, kann als Bariumoxid liefernder Bestandteil entweder Bariumcarbonat oder vorzugsweise Bariumsulfat in fein gemahlener Form, d. h. als sogenanntes Mehl mit einer Korngröße unterhalb von 0,09 mm und vorzugsweise unterhalb von 0,04 mm, eingesetzt werden. Als weiterer Bestandteil zur Bildung von Celsian bei Brenntemperaturen oder Anwendungstemperaturen werden feinteiliges AI2O3 und/oder SiO2 enthaltende Materialien, wie Korund, calcinierte Tonerde, feuerfester Ton, Aluminiumsilikate (ungefähre Zusammensetzung Al2O3 · SiO2, z. B. Andalusit, Kerpha-Ht), Quarz, Quarzgut und pyrogene Kieselsäure verwendet. Diese Al2O3/SiO2-liefernden Bestandteile werden ebenfalls in fein gemahlener Form eingesetzt, d. h. mit einer Korngröße unterhalb von 0,09 mm und vorzugsweise unterhalb von 0,04 mm.The celsian contained in the stones or masses according to the invention is preferably used in ground form, ie with a grain size of 0 to 0.6 mm. If the Celsian is not added as a pre-formed product in the basic, refractory bricks or masses, but in the form of the components capable of forming Celsian at firing temperatures or application temperatures of the bricks or masses according to the invention, either barium carbonate or, preferably, barium sulfate in finely ground form, ie as so-called flour with a grain size below 0.09 mm and preferably below 0.04 mm, are used. Finely divided materials containing Al2O3 and / or SiO 2 , such as corundum, calcined alumina, refractory clay, aluminum silicates (approximate composition Al 2 O 3 · SiO 2 , e.g. andalusite, kerpha -Ht), quartz, fused quartz and fumed silica are used. These Al 2 O 3 / SiO 2 -providing constituents are also used in finely ground form, ie with a grain size below 0.09 mm and preferably below 0.04 mm.
Die Mengenverhältnisse der zur Bildung von Celsian fähigen Bestandteile werden so ausgewählt, daß die Bildung der Celsianphase, d. h. BaO · Al2O3 · 2 SiO2, möglich ist. Geringe Überschußmengen oder Unterschußmengen an Al2O3 oder SiO2 stören in diesem Fall nicht, da neben dem Celsian in geringerer Menge noch andere Mineralphasen, wie Spinell (MgO · Al2O3), Forsterit (2 MgO · SiO2) bzw. Glasphasen gebildet werden.The proportions of the constituents capable of forming celsian are selected so that the formation of the celsian phase, ie BaO · Al 2 O 3 · 2 SiO 2 , is possible. Small excess amounts or deficiencies of Al 2 O 3 or SiO 2 do not interfere in this case, since in addition to the celsian there are also other mineral phases in smaller amounts, such as spinel (MgO · Al 2 O 3 ), forsterite (2 MgO · SiO 2 ) or Glass phases are formed.
Bei der Herstellung der basischen, feuerfesten Steine oder Massen können weitere auf dem Feuerfestgebiet üblicherweise verwendete Zusatzstoffe eingesetzt wer-In the production of the basic, refractory bricks or masses, others can be used in the refractory area commonly used additives are used
den, Beispiele hierfür sind organische Bindemittel, d. h. temporare Bindemittel, wie Sulfitablauge oder eine chemische Bindung herbeiführende Bindemittel, wie Magnesiumsulfat oder Natriumpolyphosphat. Bei der Herstellung der basischen, feuerfesten Steine oder Massen wird weiterhin noch Wasser nach Bedarf zugesetzt, wobei die Wassermenge von der Art des herzustellenden Endproduktes abhängig ist. Diese Wassermenge kann jedoch aufgrund von einfachen Vorversuchen festgelegt werden.Examples include organic binders, i. H. temporary binders, such as sulphite waste liquor or a chemical Binding agents such as magnesium sulfate or sodium polyphosphate. In the preparation of the basic, refractory bricks or masses are still further added to water as required, whereby the amount of water depends on the type of end product to be manufactured. This amount of water can however, can be determined on the basis of simple preliminary tests.
Die Erfindung wird anhand der folgenden Beispiele näher erläutert:The invention is explained in more detail using the following examples:
1515th
80 Gew.-Teile Chromerz mit einem Cr2O3-Gehalt von 38 Gew.-%, wovon jeweils die Hälfte eine Korngröße von 0 bis 1 mm bzw. 1 bis 3 mm aufwies, wurden mit 20 Gew.-Teilen Magnesiasinter mit einer Korngröße von 0 bis 3 mm, wovon ebenfalls jeweils die Hälfte eine Korngröße von 0 bis 1 mm bzw. 1 bis 3 mm besaßen, in einem Mischer mit 10 Gew.-Teilen Bariumsulfatmehl mit einer Korngröße unterhalb von 0,09 mm und 15 Gew.-Teilen Aluminiumsilikat mit ca. 60 Gew.-% AI2O3, 40 Gew.-% SiO2 (Kerphalit) mit einer Korngröße unterhalb von 0,09 mm vermischt, wobei zu diesem Gemisch noch 2,4 Gew.-Teile Sulfitablauge und etwa 1 Gew. -Teil Wasser zugesetzt wurden. Aus diesem Gemisch wurden Steine geformt, diese Steine wurden im Tunnelofen bei 145O0C gebrannt, nachdem sie vorher bei 120° C getrocknet worden waren.80 parts by weight of chrome ore with a Cr2O3 content of 38% by weight, half of which had a grain size of 0 to 1 mm or 1 to 3 mm, were mixed with 20 parts by weight of magnesia sinter with a grain size of 0 up to 3 mm, half of which also had a grain size of 0 to 1 mm or 1 to 3 mm, in a mixer with 10 parts by weight of barium sulfate flour with a grain size of less than 0.09 mm and 15 parts by weight of aluminum silicate mixed with approx. 60% by weight Al2O3, 40% by weight SiO 2 (kerphalite) with a grain size below 0.09 mm, with 2.4 parts by weight of sulphite waste liquor and about 1% by weight being added to this mixture. Part of water was added. Stones were formed from this mixture; these stones were fired in a tunnel kiln at 145O 0 C after they had previously been dried at 120 ° C.
Die Rohdichte der gebrannten Steine betrug 3, 07 g/ cm3, ihre Kaltdruckfestigkeit lag bei 120 N/mm2.The bulk density of the fired bricks was 3.07 g / cm 3 , their cold compressive strength was 120 N / mm 2 .
Diese gebrannten Steine enthielten als Mineralbestandteil Celsian, was durch Röntgenbeugung nachgewiesen wurde.These fired stones contained Celsian as a mineral component, which was proven by X-ray diffraction became.
Diese Steine besaßen eine ausgezeichnete Infiltrationsbeständigkeit gegenüber Kupfer und Kupferschlacken. These stones had excellent resistance to infiltration against copper and copper slags.
4040
Es wurden 100 Gew.-Teile des in Beispiel 1 verwendeten Chromerzes mit 8 Gew.-Teilen fein gemahlenem Bariumsulfat und 12 Gew.-Teilen fein gemahlenem Kerphalit verwendet.There were 100 parts by weight of the chrome ore used in Example 1 with 8 parts by weight of finely ground Barium sulfate and 12 parts by weight of finely ground kerphalite are used.
Im übrigen wurde die Arbeitsweise von Beispiel 1 hiermit wiederholt.Otherwise, the procedure of Example 1 was hereby repeated.
Die aus dem Ausgangsgemisch hergestellten, gebrannten Steine besaßen ebenfalls eine ausgezeichnete Infiltrationsbeständigkeit gegenüber Kupfer und dessen Schlacke.The fired stones made from the starting mixture also had excellent properties Infiltration resistance to copper and its slag.
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Claims (6)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3347249A DE3347249C1 (en) | 1983-12-28 | 1983-12-28 | Basic, refractory stones or masses containing Celsian, process for their production and their use |
| IT49254/84A IT1178450B (en) | 1983-12-28 | 1984-12-05 | BASIC REFRACTORY BRICKS OR MASSES CONTAINING CELSIANA IN PARTICULAR FOR MELTING CONTAINERS OR OVENS, PROCEDURE FOR THEIR PRODUCTION |
| AT0396384A AT382143B (en) | 1983-12-28 | 1984-12-13 | BASIC, FIRE-RESISTANT STONES OR MATERIALS CONTAINING CELSIAN, METHOD FOR THE PRODUCTION AND USE THEREOF |
| FR8419839A FR2557565A1 (en) | 1983-12-28 | 1984-12-26 | BASIC REFRACTORY BRICKS OR MASSES CONTAINING CELSIAN, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF |
| GB08432730A GB2152024A (en) | 1983-12-28 | 1984-12-28 | Basic refractory compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3347249A DE3347249C1 (en) | 1983-12-28 | 1983-12-28 | Basic, refractory stones or masses containing Celsian, process for their production and their use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3347249C1 true DE3347249C1 (en) | 1985-04-25 |
Family
ID=6218257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3347249A Expired DE3347249C1 (en) | 1983-12-28 | 1983-12-28 | Basic, refractory stones or masses containing Celsian, process for their production and their use |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT382143B (en) |
| DE (1) | DE3347249C1 (en) |
| FR (1) | FR2557565A1 (en) |
| GB (1) | GB2152024A (en) |
| IT (1) | IT1178450B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527470A (en) * | 1939-04-13 | 1940-10-09 | Gilbert Edward Seil | Chromite refractory materials |
| US2271362A (en) * | 1939-10-11 | 1942-01-27 | Corhart Refractories Co | Refractory alkaline earth chromite casting |
| GB546196A (en) * | 1941-03-27 | 1942-07-01 | Corning Glass Works | Improved manufacture of chromite refractories |
| SU413129A1 (en) * | 1971-12-06 | 1974-01-30 |
-
1983
- 1983-12-28 DE DE3347249A patent/DE3347249C1/en not_active Expired
-
1984
- 1984-12-05 IT IT49254/84A patent/IT1178450B/en active
- 1984-12-13 AT AT0396384A patent/AT382143B/en not_active IP Right Cessation
- 1984-12-26 FR FR8419839A patent/FR2557565A1/en not_active Withdrawn
- 1984-12-28 GB GB08432730A patent/GB2152024A/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT * |
Also Published As
| Publication number | Publication date |
|---|---|
| AT382143B (en) | 1987-01-12 |
| FR2557565A1 (en) | 1985-07-05 |
| GB2152024A (en) | 1985-07-31 |
| GB8432730D0 (en) | 1985-02-06 |
| IT8449254A0 (en) | 1984-12-05 |
| ATA396384A (en) | 1986-06-15 |
| IT1178450B (en) | 1987-09-09 |
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Owner name: GELSDORF, GUENTER, DR., 6200 WIESBADEN, DE MUELLER |
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| 8339 | Ceased/non-payment of the annual fee |