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Facility Detail

Techemet LLP
(No known alias)
CHWMEG Report Number: H819.0


City, State/Prov, Country:Pasadena, Texas, USA

*Location Map:Google Maps

Review Program
(Visit Date):

There are 1 more reviews conducted prior to 2013 not shown.

Description of Services:Techemet specializes in the refining of precious metals. Materials delivered to Techemet for the most part arrive in super-sacks, drums, or Gaylord boxes on pallets. The metal recovery process is labor intensive and consists of receiving, sorting, catalyst removal, and smelting. The smelting process uses two methods depending on whether the catalyst is from automobile catalytic converters or the petroleum industry.
  • Submerged arc smelting of spent catalyst: Spent catalyst is smelted at Techemet for the recovery of precious metals; namely platinum (Pt) palladium (Pd) and rhodium (Rh). All catalyst that comes to Techemet is sampled and assayed to determine the precious metal content, after which it is smelted in a submerged arc furnace.
  • Thermal oxidation of catalyst in Rotary Kiln: Due to the physical characteristics of the submerged arc furnace, material with a high carbon content cannot be smelted in the submerged arc furnace. A rotary kiln is employed to burn off any carbon in petroleum catalysts.

The final product from Techemet is an alloy that contains approximately 10% precious metals. This product requires further refining, which Techemet out sources to internationally know precious metal refiners.


Description Date:2007 Facility Review Program

Facility Location Map:

*CHWMEG, Inc. cannot guarantee the accuracy of the maps. Maps are for informational purposes only. The latitude and longitude for this map are from the most recent CHWMEG facility review.