AT77631B

AT77631B - Process for the production of refractory bricks and other refractory products using sulphite waste liquor as a binder.

Info

Publication number: AT77631B
Authority: AT
Original assignee: Stettiner Chamotte Fabrik Ag
Priority date: 1916-06-13
Filing date: 1917-06-04
Publication date: 1919-08-11

Description

  

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  Verfahren zur Herstellung feuerfester Steine und sonstiger feuerfester Erzeugnisse unter Verwendung von Sulfitablauge als Bindemittel. 



   Die Erfindung betrifft ein Verfahren zur Herstellung feuerfester Steine und sonstiger feuerfester Erzeugnisse unter Verwendung von   Sulfitlauge   als Bindemittel. 



   Es ist bereits bekannt, Sulfitlauge als Bindemittel für hoch zu erhitzende Presslinge, nämlich für aus mulmigen Erzen hergestellte Briketts, zu verwenden, wobei es indessen auf das Verhalten der   Suisstiauge   bel hohen Temperaturen hinsichtlich der Form der damit gebundenen Briketts ankommt. 



   Es ist ferner vorgeschlagen worden, Siliziumkarbid für die Herstellung feuerfester Erzeugnisse mit zu verkokenden Stoffen zu binden, die unter dem   Einfluss hoher Tempera-   turen ein Kohlenstoffgerippe bilden. Die zu diesem Zweck verwendeten Bindemittel, wie Teer, Asphalt, Pech, Melasse, Zucker, Leim   usw.,   zeigen jedoch den Nachteil, dass sie eine mehr oder weniger starke Glasur-oder Blasenbildung verursachen und ziemlich kostspielig sind, so dass sie sich als Ausgangsstoffe für minder wertvolle Erzeugnisse weniger eignen als die verhältnismässig wertlose Sulfitablauge. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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  Process for the production of refractory bricks and other refractory products using sulphite waste liquor as a binder.



   The invention relates to a method for producing refractory bricks and other refractory products using sulphite liquor as a binder.



   It is already known to use sulphite liquor as a binder for high-temperature pellets, namely for briquettes made from queasy ores, although it depends on the behavior of the suisstiauge at high temperatures with regard to the shape of the briquettes bound therewith.



   It has also been proposed to bind silicon carbide for the production of refractory products with substances to be coked, which form a carbon framework under the influence of high temperatures. The binders used for this purpose, such as tar, asphalt, pitch, molasses, sugar, glue, etc., however, have the disadvantage that they cause a more or less strong glaze or blistering and are rather expensive, so that they can be used as starting materials less suitable for less valuable products than the comparatively worthless sulphite waste liquor.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims

The present process is based on the knowledge that sulphite liquor as a binding agent for refractory raw materials, due to its high content of lignin sulphonic acid salts, has a very high viscosity and excellent binding capacity EMI1.1 penetrates. For this reason, even very brittle raw materials, e.g. H. silicon carbide, with sulphite waste liquor a completely identical, extremely plastic and slightly formbale mass can be achieved without difficulty, which is EMI1.2 it.

When the products made in this way are baked, the sultitol waste liquor is partially volatilized, but for the most part it forms a solid carbon structure through coking of the organic components, which gives the product high resistance to very high temperatures. EMI1.3 Process for the production of refractory bricks and other refractory products using sulphite waste liquor as a binding agent, characterized in that the ferrous base material, e.g. B. silicon carbide, is bound with sulphite waste liquor. ** WARNING ** End of CLMS field may overlap beginning of DESC **.