Method of recovering glass cullet

Details Method of recovering glass cullet Method of recovering glass cullet

C - Chemistry, Metallurgy

03

C

241/141

C03C 12/00 (2006.01) C03B 1/00 (2006.01) C03C 1/00 (2006.01) C03C 1/02 (2006.01)

Patent

CA 1067874

METHOD OF RECOVERING GLASS CULLET ABSTRACT OF THE DISCLOSURE A method of recovering cullet from laminated glass scrap is disclosed. The laminated scrap is crushed to fragment the glass but the glass generally remains in bonding contact with the laminating interlayer. The crushed scrap is mixed as its temperature is increased so that the laminating interlayer softens to permit the interlayer to be torn thus reducing the size of the scrap. The finally divided scrap is heated to a temperature at which the interlayer burns away. Any carbon residue left on the crushed scrap is also burned away. The crushed scrap is cooled and recovered as cullet.

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