Method for cold molding pitch bonded refractory

Details Method for cold molding pitch bonded refractory Method for cold molding pitch bonded refractory

C - Chemistry, Metallurgy

08

L

400/1400, 25/142

C08L 95/00 (2006.01) C04B 35/01 (2006.01) C08L 61/24 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1038514

ABSTRACT OF THE DISCLOSURE A binder composition comprising pitch, an aqueous solution of a water soluble resin, and an organic solvent solution of a thermosetting polymer. The binding composition in combination with particulate refractory aggregate forms a molding composition suitable for use in making shaped refractory articles. Shaped refractory articles prepared from such a molding composition are particularly suitable for use as linings in basic oxygen process steel refining vessel? Shaped refractory articles may be prepared by coating coarse refractory aggregate with the organic solvent solution of a thermosetting polymer, admixing powdered pitch with the coated coarse refractory aggregate, blending fine refractory aggregate and the aqueous solution of the water soluble resin with the coated refractory aggregate-pitch mixture, and forming the resultant composition into shaped refractory articles.

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