The electro-refining of copper is a multi-step process that starts with copper concentrate that is smelted to produce impure copper anodes, which are then
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Silver refining is a critical part of any precious metals refinery. Often the higher value metals such as gold and the Platinum Group Metals (PGM’s) are associated with silver, which must be recovered separately as a by-product.
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A unique feature of the electrowinning process is acid generation. As a result, acid can be recycled or recovered from the metal depleted electrolyte. In particular, high concentrations of acid can be produced in an emew cell due to their unique ability to deplete to very low concentrations of metals (< 1 g/L).
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In this video we discuss which adjustable parameters in the emew cell affect production and purity, as well as which impurities can adversely affect the operation of an emew plant.
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Topics: Video
In this video, we explain which metals emew can recover, and if selective recovery of silver from a solution with high copper content is possible.
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Topics: Video
When talking about electrowinning, copper, silver, and nickel always seem to be the
center
of attention.
However, with the recent advancements in electric vehicles and electronics, it’s Cobalt’s time to shine.
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Topics: Refinery Optimization
Clean, fresh water is a luxury in many countries and is increasingly becoming a valuable commodity. Our society today is faced with the challenge of harnessing the power of advanced wastewater treatment technologies to preserve our precious water resources. Not only does this apply to municipal water treatment plants that work around the clock to make sure communities all over the world have access to clean, fresh water, but also in industrial processes to minimize usage and waste.
"Presently only 20% of globally produced wastewater receives proper treatment."
- United Nations Educational, Scientific, and Cultural Organization (UNESCO)
In the years following the industrial revolution and continuing on into the information age, industries have been challenged to develop new and innovative ways to treat wastewater and bleed streams to encourage recycling and reduce discharge towards the holy grail of so-called 'zero discharge'. We've come a long way in the latter part of the 20th Century, but there's still work to be done as populations swell, economies grow and everyone strives to improve their quality of life and that of his or her children.
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Topics: Wastewater Treatment
In this video we answer questions about how to size your emew plant, what are typical delivery times for emew equipment, and what is the cost of an emew plant.
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Topics: Video
Two case studies on the value of metal recovery from wastewater
It’s no secret that industrial pollution is harmful to the environment and human health.
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Topics: Wastewater Treatment
In one of the previous posts I described the basic principle of conventional electrowinning. Today I would like to talk about the differences between conventional electrowinning and proprietary emew technology, which is based on fundamental electrowinning tenets but offers so many additional benefits.
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Topics: Video
