Method of producing glass materials from ash-slag waste

Details Method of producing glass materials from ash-slag waste Method of producing glass materials from ash-slag waste

1995-06-06

1996-12-31

Hoffmann, John

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 22, 65 20, 651359, 501 39, 501 84, C03B 1908

Patent

active

055889778

ABSTRACT:
A method of obtaining glass materials from ash-slag. Waste wherein the waste is heated to a melting point temperature and melted in a reducing medium. The obtained melt is cooled by a thermal shock to form a foamed glass material. Prior to heating the charge, the carbon content therein is brought to 3.0-8.0 wt %, and the foamed glass material is foamed under a flow of a gaseous medium resulting form decomposition of carbides formed in the melt as a result of carbon content adjustment. Carbon addition also reduces iron oxide present in the waste, this reduction facilitating iron separation from the foamed material.

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V. F. Pavlov et al., "Reprocessing Technology For Coal Ash Pellets", Academy of Sciences of the USSR Order of Lenin Siberian Division L. V. Kirensky Physics Institute SKTB NAUKA (Science)., Krasnoyarsk 1991.

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