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US 5,846,894 AGranted
Phosphate bonded structural products from high volume wastes
AssigneeThe University of Chicago
InventorsDileep Singh, Arun S. Wagh
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Abstract
A method to produce structural products from benign waste is provided comprising mixing pretreated oxide with phosphoric acid to produce an acid solution, mixing the acid solution with waste particles to produce a slurry, and allowing the slurry to cure. The invention also provides for a structural material comprising waste particles enveloped by an inorganic binder.
Claims20
A method to produce structural products from nonrecyclable and nonbiodegradable waste comprising:
- a.) preparing an inorganic oxide;
- b.) contacting the prepared inorganic oxide with phosphoric acid to produce an acid solution;
- c.) mixing the acid solution with waste particles to produce a slurry;
- and
- d.) allowing the slurry to cure.
2 more elements
A structural material comprising:
- a.) nonrecyclable or nonbiodegradable waste particles;
- and
- b.) a premixed ceramic-based inorganic binder enveloping the waste particles, wherein no more than 55 percent of said binder comprises a powder mixture.
A nonflammable structural material comprising:
- a.) styrofoam particles;
- and
- b.) a ceramic-based inorganic binder enveloping the styrofoam, wherein no more than 55 percent of said binder comprises a powder mixture.
Dependencies are inferred from the claim text.