Gußkeramische Zusammensetzung

Gußkeramische Zusammensetzung

In accordance with the invention, there is provided a process for preparing a ceramic casting composition. In the process a mixture of a kaolin clay and water at a pH in the range of from 2.8 to 7.5 is first treated with a minor proportion by weight of a water soluble organic compound having a plura...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: FOOKS, JAMES ALFRED, SCREDDA, ST. AUSTELL, CORNWALL, GB
Format: Patent
Sprache:ger
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:In accordance with the invention, there is provided a process for preparing a ceramic casting composition. In the process a mixture of a kaolin clay and water at a pH in the range of from 2.8 to 7.5 is first treated with a minor proportion by weight of a water soluble organic compound having a plurality of basic groups and a weight average molecular weight not greater than 1000; the treated mixture of kaolin clay and water is then partially dewatered, if necessary, to form a plastic mass having a solids concentration in the range of from 50% to 78% by weight which is then subjected to mechanical working in the plastic state and, finally, the mechanically worked, treated kaolin clay is formed into a ceramic casting composition.