emew Blog

Prices of emew revealed: How much does a 600 t/a electrowinning plant cost?

Posted by Trevor Bergfeldt on May 15, 2018 8:55:04 AM

One of the most important and frequently asked questions we get is “How much does an emew plant cost”? The cost obviously depends on the size of the emew plant, so to answer this question we need to know how many electrowinning cells are required, which depends on several factors.

 

In this blog, I will discuss some of the key factors we take into consideration when sizing an emew electrowinning plant and provide some examples for three different applications. 

 

Read More

4 Most Frequently Asked Questions About emew Cathodes and Anodes

Posted by Sara Wollschlaeger on Apr 10, 2018 3:42:41 PM

Today we would like to answer some frequently asked questions about emew cathode quality and emew anode coating and lifespan.

Read More

Topics: Video

[VIDEO] Why some metals are easier to electrowin than others?

Posted by Sara Wollschlaeger on Mar 21, 2018 12:42:21 PM
Why is it easy to electrowin some metals, and almost impossible to electrowin others?
 
In a few minutes, I will explain why. The answer lies in the Electrochemical Series, and its relation to electrowinning.
Read More

Topics: electrowinning, General

How can you increase the copper recovery of your SX-EW process by 8.9% in only 29 days?

Posted by Sara Wollschlaeger on Mar 6, 2018 4:00:19 PM

What is SX-EW?

Hydrometallurgical extraction is an effective way to recover copper from low-grade copper ores.
 
But how is it done?
 
Heap leaching is the method most commonly chosen for copper recovery from oxide ores. An acidic solution is used to leach the metal, dissolving the copper into what is referred to as a pregnant leach solution (PLS). This solution is collected and purified by solvent extraction (SX). SX is a two-step process of loading the copper into an organic solution, followed by stripping the copper from the organic, into an aqueous solution.
 
Read More

Topics: Refinery Optimization

Silver Recovery from Scrap and Low-Grade Residue

Posted by Sara Wollschlaeger on Dec 19, 2017 10:19:40 AM
Due to the increase in electric and electronic equipment (EEEs), high-purity silver continues to be in high demand. For the past 4 years, silver demand has exceeded silver mining production, but the global supply has nearly met the demand each and every year – thanks to silver recovery and silver refining. Silver recycling will also be critical to meet future demand, especially as we see the general demand of metals increase across the globe, in relation with technological growth. High-purity silver can be produced from silver refining and silver recycling by utilizing a series methods and processes, such as silver electrowinning and electrorefining. I’d like to delve into how these processes are carried out, and the outlook for silver production.
Read More

Topics: metal recycling, electrowinning, emew, Refining, metal powders

Can I recover copper from this? Copper recovery from the ground up

Posted by Trevor Bergfeldt on Oct 19, 2017 9:45:13 AM

A question that we hear from Clients every day is "Can I recover (copper - or other metals) from this?"  The material in question can be concentrated wastes, dilute effluents, ores, concentrates, residues, plating baths, bleed streams and so on.  It seems like a very easy and straightforward question to answer, and in some cases that is true.  In other cases, however, the answer is a bit more complicated requiring some additional information.  Let's take a closer look at the good, the bad, and the ugly when it comes to the common question "Can I recover (copper - or other metals) from this?"

Read More

Topics: effluent treatment, environmental, copper, wastewater treatment, metal recycling, mining, Refinery Optimization

Why the world is demanding more cobalt, and why new methods for cobalt recovery are the answer.

Posted by Sara Wollschlaeger on Sep 29, 2017 10:12:21 AM

A review of why new technologies are going to drive the future of cobalt recovery and production.

Background of Cobalt:

Cobalt, the element that is just starting to create a lot of buzz ; from the auto industry to electronics production, the popularity of cobalt is growing rapidly – chiefly for its use in rechargeable batteries. As global demand for cobalt increases, current sources of cobalt may not be sufficient. This imbalance between supply and demand may open doors for novel methods of recovery and recycling of cobalt.

Read More

Topics: Advanced Battery Materials

Which metals have held their value over 50 years?

Posted by Alex Barshai on Sep 20, 2017 12:49:13 PM
With technology changing so fast, new raw materials are taking centre stage every day, making it more and more difficult to predict which metals will hold or lose their value in the next 50 years. Recent innovations are making electric cars powered by renewable energy mainstream, fuelling development of novel and more efficient battery technologies.  All of these technological developments depend on resources such as nickel, copper, and cobalt.  Technological trends coupled with geopolitical stability contribute to supply and demand which in turn dictate metal prices. 
Read More

Topics: market, General

Enhanced methods for nickel recovery from low-grade ores and bleed streams

Posted by Sara Wollschlaeger on Sep 6, 2017 5:09:46 PM

Way back in elementary school when you thought of nickel, the first image that popped into your head was probably that nice shiny 5¢ coin. Even though we hardly carry change purses anymore, nickel is still ever present in our day-to-day lives. From the shiny stainless steel trim on your building, to the knives in your kitchen, nickel is found everywhere.With nickel becoming favoured for use in transport, power generation, cell phones, food preparation, and medical equipment, it leads one to think about where all of this nickel is coming from. 

Read More

Topics: nickel, Refinery Optimization

The future of clean energy and its relationship to electrolytic metal powders.

Posted by Sara Wollschlaeger on Aug 28, 2017 10:21:33 AM

I recently learned that metal powders have the potential to be the future of renewable energy sources. This is a relatively new venture, and an area of interest for us, here at emew , since producing metal powders is something we do daily. I wanted to explore the topic of the production of metal powders and explain more about how they are produced to create this renewable fuel source.

Read More

Topics: metal powders, Advanced Metal Powders