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 RESEARCHMetalquímica del Nervión, la primera planta hidrometalúrgica en el mundo que mediante técnicas de extracción con disolventes producía zinc SHG : la tecnología ZINCEX® .
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.
En 1980 la planta Quimigal en Lisboa (Portugal) supone la segunda referencia del proceso ZINCEX® para la producción de zinc SHG vía extracción con disolventes.
In 1987, in Catalonia (Spain), a plant for the recycling of used domestic batteries was started up to obtain ultra-pure zinc sulphate.
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, the new production plant in Namibia with a capacity of 150,000 t/a of SHG zinc under ZINCEX® technology represented an improvement of the ZINCEX® technology.
In 2010 in Akita (Japan), Dowa Minerals inaugurated a new production plant with a capacity of 20,000 t/a of SHG zinc using ZINCEX® MZP technology applied to secondary zinc materials.
En el año 2013 en Portoscuso, (Cerdeña, Italia) Glencore inaugura nueva planta de producción de 52.000 t/a de zinc SHG a partir de óxidos Waelz y óxidos Kivcet con tecnología ZINCEX® modificado.
En el año 2020 en Mooresboro, (Carolina del Norte, EEUU) American Recycling inaugura su nueva planta de producción de 140.000 t/a de zinc SHG a partir de óxidos Waelz con tecnología ZINCEX® modificado y planta de producción bajo tecnología ECOLEAD® de 6.000 tpa de plomo y 17 tpa de plata.
Currently, more than 300,000 tpa of SHG quality zinc is produced in several plants around the world using ZINCEX® consolidating TR as a world leader in zinc production through its patented technology.
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