____PPR, Inc. is involved in the recovery of inorganic materials generated during the thermal treatment of automotive tires. Specifically, zinc oxide is left behind as an ash along with other inorganic materials and these can be recovered using proven pyrometallurgical and hydrometallugical methods. The method produces a non-hazardous slag and a saleable zinc oxide product.

_____Tires are a difficult material to dispose of using traditional methods. The size, shape and physical behavior of automotive tires make landfilling difficult and potentially dangerous. Fires can occur, and may burn for weeks. The number of tires disposed of each year is estimated at over 240 million a year in the United States alone - one per person. Rain water trapped within used tires is a serious problem, as it is an ideal environment for insects - which may carry disease .

_____Current used tire processing schemes consist mainly of thermal treatment to produce energy from the tires either directly through combustion of the tires or deriving oils known as Tire Derived Fuels (TDF) for use in furnaces. During these treatments, the inorganic components of tires are not delt with. Typically, an ash residue is left behind, composed mainly of zinc oxide, titanium dioxide, iron, carbon and other materials. These materials are valuble, and are easily reclaimable. We intend to recover the zinc oxide in a high purity form, good enough to use in the manufacture of new tires. This is true recycling, not just recovery, and adds the highest value to the feedstock product.

Current Recovery Projects

31MW Waste Tire-To-Energy Plant, Sterling, Connecticut

_____The Exeter Energy Zinc Oxide Recovery Project is located in the Sterling Industrial Park in Sterling, Connecticut. It will convert the ash generated by a 31 net MW waste tire fueled power plant into zinc oxide and glassy slag.

_____Electricity generated by the combustion of tires is converted at the site from 13.8 kV generation voltage to 115 kV. The power is directed along a 8.5 mile underground cable system for final sale to Connecticut Light & Power. Annual generation is approximately 198,000 megawatt hours of electricity which is equivalent to conserving approximately 291,000 barrels of oil per year.

_____At the completion of the project, scrap and waste tires will be converted into energy, a recovered slag and zinc oxide products for sale or further processing. This achieves a remarkable level of recovery for a difficult waste stream.

Learn more about our tire ash process......
PPR Process
Learn more about our people......
PPR People

For additional information about our company, please contact us at:

(502) 778-3891
Pure Product Recovery, Inc.
3908 Cane Run Road
Louisville, KY 40211

or send e-mail to
the PPR group by clicking here.

Keyword Listing:
Baghouse and dust, fume, waste or wastes. Zinc, Zn, Cadmium, Cd, Lead, Pb, Copper, Cu, Metals, Oxide or oxides, K061 or KO61. Chemical or industrial. Fly ash or ashes. Tires and waste or scrap.Tires or tire, ash or flue dust.Fluxes or slag, recovered or recovery. Hydrometallurgical or pyrometallurgical, lab or laboratory or bench scale. Forensic or criminalistics. Patent or research. Development or process. Leaching or solution or dissolving. Purification or production. Zinc oxide or zinc metal. Metallic. Recycling waste or wastes.
Spent catalyst or chemicals. Environmental and recovery. Steel mill or mini mill.