The latest revision of the BREF (Best Available Techniques Reference Document) for the non-ferrous metals industry lists ZINCEXTM technology among the purification processes for zinc production from primary and secondary raw materials.
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Last June, a pilot-scale demonstration of the technology developed by Técnicas Reunidas WALEVA began. The demonstration period lasted five weeks, during which a total of four continuous operation campaigns were completed, yielding levulinic acid under optimal conditions of yield and purity.
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