Nickel is normally found in nature combined with arsenic, antimony and sulfur in the form of sulfides. Getting from this mixture to the pure metal is a complex process. This mixture rich in copper, nickel and cobalt is what is technically called “speiss”. This makes it possible to separate silver, a mixture of materials rich in copper, nickel and cobalt and a scorifiable residue. The ore is mixed with calcium oxide and silica, producing a slag. This coke is obtained from bituminous coal in ovens with an oxygen-free atmosphere, removing the volatile content and obtaining a porous coal suitable for these metallurgical treatments. The parts enriched with nickel, cobalt, and often also iron, are mixed with metallurgical coke. The initial treatment of these arsenides is crushing and concentration by flotation or gravity. Normally, arsenic is also a constituent of these minerals. The main cobalt reserves are found in the Congo, Russia, Peru, Canada, Finland, Chile, Burma, Morocco and Zimbabwe. These materials are a mixture of arsenides that contain appreciable amounts of nickel, cobalt, iron and silver. The most important cobalt minerals are smaltite CoAs 2 and cobaltite CoAsS however, from a technical point of view, the main sources of cobalt are “speiss”. Alnico, Fernico and Cunico), enamels, coatings, electrodes, batteries and structured cabling for tyres. Cobalt and nickel are two elements that are well positioned in new technologies, especially those with an energy link.Ĭobalt is part of the steel superalloys that work at high temperature with a high yield strength: e.g. These extraction processes have to evolve from optimised technologies to deal with deposits with a lower metal content. The international price of cobalt shot up 127% in 2017, that of copper increased by 30%, tungsten was up 27%, while the price of lithium has almost doubled since 2015 in conjunction with these figures, certain countries are positioning themselves in certain deposits, such as China in Katanga. Mining of these metals, together with others technologically associated with electronic advances, is being reactivated to guarantee growing supplies especially for the fields of batteries, energy accumulation and the decrease in the volume of these essential components for our mobiles, computers, hybrid and electric vehicles. Scalsim® LITE: Hardness, alkalinity and corrosion calculatorĬobalt and nickel are found together in nature in a large number of deposits.Manure management, slurry treatment and digestate valorisation in farms.Purification of dust or aerosols emissions.Technologies for VOC treatment and removal.Wastewater brine treatment plant and disposal process.Zero Liquid Discharge (ZLD) systems and technologies.Industrial wastewater treatment systems.Multiple effect evaporators for high volumes of wastewater.MVR evaporators – Mechanical vapor recompression systems.Bioscrubbers for the biological removal of VOCs, odors, and ammonia.Scrubber system for air pollution control.Water desalination and wastewater valorization powered by solar energy.Micro-filtration, ultra-filtration and nano-filtration.Industrial vacuum crystallizers for wastewater treatment and ZLD.Industrial vacuum evaporators for wastewater treatment.Industrial wastewater evaporator manufacturer and supplier.
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