Técnicas Reunidas S.A (TR) is an international general contractor that provides engineering, design and construction of various types of industrial facilities for a wide range of customers throughout the world.
Since 1960, TR has designed and built more than 1000 industrial plants in more than 50 countries.
The Proprietary Technology Development Division (DDTP), created in 2007, alongside its renovated Technological Center, which focuses on projects in R&D to develop new technologies in TR’s strategic sectors, is the result of these activities initiated in 1971.
In 1971, TR created the Research and Development Division as a business unit to specialise in hydrometallurgical and electrochemical processes.1974 RESEARCH
Metalquímica del Nervión, the first hydrometallurgical plant in the world to produce SHG ZINC through solvent extraction methods ZincexTM process.
In 1977, the first plant was set up to recover mercury in industrial effluents from chlorine-soda plants through solvent extraction: the Mercurex process.
Its success allowed it to license and operate two more plants, one in 1978 and another in 1982, for the same industrial group (EIASA) with the same process.
In 1980, the Quimigal plant in Lisbon (Portugal) became the second standard in the ZincexTM process for the production of SHG zinc through solvent extraction.
En 1987 en Cataluña (España) se pone en marcha una planta para el reciclado de baterías domésticas agotadas para la obtención de sulfato de zinc ultra-puro.
In 1988, a new plant was built in Almagrera (Andalucía, Spain). It produced for COPPER salt production (CuSO4.5H2O) through another process licencsed by TR: the Copper SX Process.
In 2003, a new plant was set up in Namibia for the production of 150,000 tpa of SHG zinc through the modified ZincexTM process (MZP), constituting an improvement upon ZincexTM technology.
In 2010 in Akita (Japan), Dowa Minerals opened a new production plant for 20,000 tpa of SHG zinc using the modified ZincexTM process (MZP) applied to secondary materials of Zn.
In 2013, in Portovesme, (Sardinia, Italy) Glencore opened a new production plant for 52.000 tpa of SHG zinc from Waelz oxides and Kivcet oxides using the modified ZincexTM process (MZP).
In 2014, in Mooresboro, North Carolina (USA), the HorseHead Corporation opened a new production plant for 140.000 tpa of SHG zinc from Waelz oxide using the modified ZincexTM process (MZP), as well as a production plant using ECOLEADTM technology, form 6,000 tpa of lead and 17 tpa of silver.
Currently more than 300,000 tpa of Super High Grade (SHG) Zinc are produced worldwide in various plants using ZincexTM Technology, consolidating TR as a world leader in the production of Zinc through its patented technology.
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