{"id":82,"date":"2014-10-14T14:05:19","date_gmt":"2014-10-14T14:05:19","guid":{"rendered":"https:\/\/ddtp.tecnicasreunidas.es\/?page_id=82"},"modified":"2024-05-08T11:33:54","modified_gmt":"2024-05-08T11:33:54","slug":"zinc-technologies","status":"publish","type":"page","link":"https:\/\/ddtp.tecnicasreunidas.es\/en\/technologies\/zinc-technologies\/","title":{"rendered":"Zinc technologies"},"content":{"rendered":"

ZINCEXTM<\/sup> <\/strong> technology offers a robust, reliable and flexible alternative for zinc ores and concentrates that are difficult to treat using conventional methods. This technology is the first industrial reference for zinc production through hydrometallurgy using solvent extraction.<\/strong><\/p>\n

A clear example of the versatility of this technology is its successful implementation in Spain, Nambia, Japan, Italy and the United States,<\/strong> over a wide variety of raw materials (oxidised ore, waelz oxides and spent batteries, among others) and with treatment capacities ranging from 2,000 tons of zinc per year to 150,000 tpa of zinc.<\/strong><\/p>\n

ZINCEXTM<\/sup> technology comprises the following process units:<\/p>\n

LEACHING:<\/h2>\n

Performed in an acid medium with the aim of obtaining a solution with the zinc present in the raw material.<\/p>\n

SOLVENT EXTRACTION<\/h2>\n

The solvent extraction stage purifies and concentrates the zinc solution, acting as a barrier to impurities for the subsequent stages of the process.<\/p>\n

ELECTROWINNING:<\/h2>\n

The function of this unit is the production of zinc metal from the zinc-bearing solution (loaded electrolyte). Direct current is applied to the solution and a deposit of SHG zinc metal plate is grown from the electrolyte onto the cathodes.<\/p>\n

The key to the success of the ZINCEXTM<\/sup> technology resides in its ability to treat a wide range of zinc solutions, from 1 g\/l to 160 g\/l Zn, which makes it ideal for combining multiple projects and applications, along with its capacity to obtain high-purity electrolytes by creating impassable barriers, not only for common impurities, such as Ni, Co, Cd, etc., but also for elements such as Ca, Mg, Mn, Cl, F, which have a damaging effect on the electrolysis of zinc.<\/p>\n

The following figure compares the behaviour of the main impurities in ZINCEXTM<\/sup> technology and in conventional technology:<\/p>\n

CONVENTIONAL PROCESS
\nRoasting, Leaching, Electrowinning<\/p>\n

ZINCEXTM<\/sup> PROCESS<\/p>\n

MAIN PLANTS USING THIS TECHNOLOGY:<\/p>\n

Rosh Pinah \u2013 Namibia
\nVedanta
\n150.000 tpa
\nMineral de zinc
\nNew plant<\/p>\n

Akita \u2013 Japan
\nDowa
\n20.000 tpa
\nSecondary zinc oxide concentrate such as Waelz Oxides, Crude Zinc Oxides and Fumes
\nRemodelado de planta existente<\/p>\n

Cerde\u00f1a \u2013 Italia
\nGlencore
\n52.500 tpa
\nSecondary zinc oxide concentrate such as Waelz Oxides, Crude Zinc Oxides and Fumes
\nRemodelado de planta existente<\/p>\n

Mooresboro \u2013 EEUU
\nHorsehead
\n135.000 tpa
\nSecondary zinc oxides such as Waelz Oxide and Skimmings.
\nNew plant<\/p>\n","protected":false},"excerpt":{"rendered":"ZINCEXTM technology offers a robust, reliable and flexible alternative for zinc ores and concentrates that are difficult to treat using conventional methods. This technology is the first industrial reference for zinc production through hydrometallurgy using solvent extraction. A clear example of the versatility of this technology is its successful implementation in Spain, Nambia, Japan, Italy… View Article<\/a>","protected":false},"author":2,"featured_media":0,"parent":67,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"procesos-y-productos-ficha.php","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/pages\/82"}],"collection":[{"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/comments?post=82"}],"version-history":[{"count":4,"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/pages\/82\/revisions"}],"predecessor-version":[{"id":886,"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/pages\/82\/revisions\/886"}],"up":[{"embeddable":true,"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/pages\/67"}],"wp:attachment":[{"href":"https:\/\/ddtp.tecnicasreunidas.es\/en\/wp-json\/wp\/v2\/media?parent=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}