DE664943C - Process for the manufacture of refractory products - Google Patents

Process for the manufacture of refractory products

Info

Publication number
DE664943C
DE664943C DES116834D DES0116834D DE664943C DE 664943 C DE664943 C DE 664943C DE S116834 D DES116834 D DE S116834D DE S0116834 D DES0116834 D DE S0116834D DE 664943 C DE664943 C DE 664943C
Authority
DE
Germany
Prior art keywords
manufacture
zirconium
refractory products
silicate
aluminum oxide
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
Application number
DES116834D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Priority to DES116834D priority Critical patent/DE664943C/en
Application granted granted Critical
Publication of DE664943C publication Critical patent/DE664943C/en
Expired legal-status Critical Current

Links

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
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Verfahren zur Herstellung von feuerfesten Erzeugnissen Es ist bekannt, feuerfeste Erzeugnisse unter. Verwendung von Zirkonsilicat herzustellen, indem m.an entweder das Zirkonsilicat mit Oxyd-en zusammenschmilzt, die sich mit der aus der. Zersetzung des Zirkons herrührenden Kieselsäure verbinden, oder indem man ein Gemisch, welches sich aus- fein gemahlenem Zirkon und Körpern, wie Carbiden oder tonerdehalti,gen Verbindungen, zusammensetzt, erwärmt. Die erstgenannte Herstellungsweise erfordert die Anwendung hoher Temperaturen, da das Zirkon erst bei etwa z5oo° C schmilzt. Demgegenüber arbeitet man bei dem zweiten Herstellungsverfahren mit niedrigeren Temperaturen, aber bei i 5oo° C und darüber zerfallen die ,erhaltenen Produkte unter Belastung infolge der Zersetzung des Zirkonsilicats in Zirkoniumoxyd und Kieselsäure, welche bei über 1q.00° C beginnt.Process for the manufacture of refractory products It is known refractory products under. Use of zirconium silicate by m.an either the zirconium silicate fuses with the oxides which come from the. Decomposition of the zirconium-derived silica, or by adding a mixture, which is made up of finely ground zirconia and bodies such as carbides or alumina Connections, put together, heated. The former production method requires the use of high temperatures, as the zirconium only melts at around 500 ° C. In contrast, the second manufacturing process uses lower Temperatures, but at 1500 ° C. and above, the products obtained disintegrate below Exposure due to the decomposition of zirconium silicate into zirconium oxide and silica, which starts at over 1q.00 ° C.

Den Mängeln dieser beiden Hierstellungsverfahren hilft die Erfindung ab. Sie besteht darin, daß man mit dem Zirkon solche Mengen von Aluminiumoxyd vermischt, daß beim Brennen über i 5oo° C die gesamte freie Kieselsäure, die aus dem Zerfall des Zirkons herrührt, zu Aluminiumsilicat gebunden wird.The invention helps to overcome the shortcomings of these two methods of presentation away. It consists in mixing such quantities of aluminum oxide with the zirconium, that when burning over 1500 ° C all the free silica that results from the disintegration derives from the zirconium, is bound to aluminum silicate.

Eine solche Mischung kann beispielsweise z 5 bis i o % Zirkon und 7 5 bis 9o o/o Korund oder Bauxit enthalten.Such a mixture can, for example, z 5 to 10% zirconium and 7 5 to 90% corundum or bauxite.

Das Brennen kann in einer Form oder an Ort und Stelle vorgenommen werden, um .einen feuerfesten Stampfhau oder feuerfeste Verkleidungen herzustellen.The firing can be done in a mold or on the spot in order to produce a fireproof rammed earth or fireproof cladding.

Claims (1)

PATENTANSPRUCH: Verfahren zum Herstellen feuerfester Erzeugnisse :durch Brennen von Gemischen aus Zirkonsilicat und Aluminiumoxyd, da'-durch gekennzeichnet, daß das Aluminiumoxyd in solcher Menge zugesetzt wird, daß beim Brennen über 1500° C die gesamte freie Kieselsäure, die aus dem Zerfall des Zirkonsilicats herrührt, zu Aluminiumsilicat gebunden wird.PATENT CLAIM: Process for the manufacture of refractory products: by Firing of mixtures of zirconium silicate and aluminum oxide, characterized by that the aluminum oxide is added in such an amount that when burning over 1500 ° C all the free silica resulting from the decomposition of the zirconium silicate, is bound to aluminum silicate.
DES116834D 1935-01-18 1935-01-18 Process for the manufacture of refractory products Expired DE664943C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES116834D DE664943C (en) 1935-01-18 1935-01-18 Process for the manufacture of refractory products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES116834D DE664943C (en) 1935-01-18 1935-01-18 Process for the manufacture of refractory products

Publications (1)

Publication Number Publication Date
DE664943C true DE664943C (en) 1938-09-09

Family

ID=7534052

Family Applications (1)

Application Number Title Priority Date Filing Date
DES116834D Expired DE664943C (en) 1935-01-18 1935-01-18 Process for the manufacture of refractory products

Country Status (1)

Country Link
DE (1) DE664943C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900913C (en) * 1938-10-14 1954-01-04 Gen Motors Corp Spark plug isolator
US2842447A (en) * 1955-09-29 1958-07-08 Corning Glass Works Method of making a refractory body and article made thereby

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900913C (en) * 1938-10-14 1954-01-04 Gen Motors Corp Spark plug isolator
US2842447A (en) * 1955-09-29 1958-07-08 Corning Glass Works Method of making a refractory body and article made thereby

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