Chapter 21. Glassmaking Wastes as Specialty Glass Raw Materials

  1. John B. Wachtman Jr
  1. George H. Edwards

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314098.ch21

A Collection of Papers Presented at the 53nd Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 14, Issue 3/4

A Collection of Papers Presented at the 53nd Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 14, Issue 3/4

How to Cite

Edwards, G. H. (2008) Glassmaking Wastes as Specialty Glass Raw Materials, in A Collection of Papers Presented at the 53nd Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 14, Issue 3/4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314098.ch21

Author Information

  1. Corning Incorporated Corning, NY 14831

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375242

Online ISBN: 9780470314098

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Keywords:

  • consigned;
  • beneficiation;
  • flotation;
  • hazardous;
  • compliance

Summary

Certain materials produced during the manufacture of specialty glasses are presently consigned to land disposal, but may have value as raw materials in glass batches if they can be modified sufficiently by beneficiation. In some cases, these are hazardous materials, and the cost of land disposal is substantial. Examples are foreign, mired, and dirty cullet; effluent gas capture device dust; glass grinding and polishing sludge; and refractory rubble from the demolition of glass furnaces. Industrial mineral beneficiation processes with potential for recycling glass manufacturing wastes include wet and dry magnetic separation, electrostatic separation, eddy-current detection and separation, gravity concentration techniques, and froth flotation. In the limited cases examined thus far, preliminary economic estimates favor recycling vs land disposal. The elimination of long-term liability by recycling into the product stream is of perhaps greater value.