PROCESS FOR THE MANUFACTURE OF REFRACTORY MATERIALS

摘要

A process for the manufacture of shaped refractory articles, which process comprises mixing one or more powdered refractory materials with a curable phenolic resin and adding an aldehyde as a solvent for the curable phenolic resin to the mixture, or adding a curable phenolic resin dissolved in an aldehyde solvent to the refractory powdered material(s), the aldehyde solvent comprising a compound of general formula (I), where A, B, X, Y and Z represent certain defined substituent groups, partially drying the mixture to form free flowing agglomerates of the powdered material(s) and subjecting the agglomerates of the powdered material(s) to compression moulding.