Methods for Making Glasses from
Organic Waste Food Streams
Subramanian Ramalingam, Ivan Cornejo, and Ivar Reimanis
Summary: A renewable method for making commercial and new glasses from organic waste
Description: Current glass products can contain up to 20-30% recycled glass, while the
remaining materials are directly mined from the Earth’s crust. In this work, a renewable method
for making a variety of commercial and new glasses from organic waste products has been
developed. In this method, the necessary inorganic compounds are extracted from organic
waste streams (e.g., food and agriculture waste streams) that are high in inorganic oxide
content. Food wastes are dried in an oven and then heated to a temperature at which the
undesired components (e.g., water, carbon, and nitrogen) are removed. Typically, a secondary
heat treatment process produces the minerals desired for glass batching. These glasses have
the same, or improved physical, chemical, and mechanical properties as glasses made from
mined minerals. However, the methodology disclosed in this invention will produce a
renewable and sustainable product.
Main Advantages of this Invention:
 Reduced environmental impact
 Potential for improved properties
Potential Areas of Application:
 Glass and ceramics manufacturing
ID number: # 14001
Intel ectual Property Status: US utility
application pending (#14/477,458).
Publication Link:
Opportunity: Seeking an exclusive or non-exclusive licensee for implementation of this
For more information contact:
William Vaughan, Director of Technology Transfer
Colorado School of Mines, 1500 Illinois Street, Guggenheim Hall Suite 314, Golden, CO 80401
Phone: 303-384-2555; e-mail: