emew Blog

Low Grade Better Than High Grade… Tell That to My Former Teachers

Posted by Sonny Samra on Feb 10, 2017 2:15:36 PM

A brief history of grading

William Farish was a tutor at Cambridge University in England in 1792, and, other than his single contribution to the subsequent devastation of generations of schoolchildren, is otherwise undistinguished and unknown by most people.
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Topics: copper, electrowinning

Copper Mined vs Copper Refined (by Country)

Posted by Alex Barshai on Dec 21, 2016 11:20:54 AM

Taking a closer look at worldwide copper production statistics we found that some of the biggest copper producing countries do not necessarily refine the copper at home. The reasons for this depend on various factors. We wanted to find out how much of copper is not actually refined in the same countries from which it was mined.

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Topics: copper

Video of emew® Lab Cell Test

Posted by Alex Barshai on Dec 9, 2016 3:35:02 PM

Lab tests such as this are an ideal way to demonstrate the recovery capabilities of emew® for a variety of electrolytes and feed materials. In most cases, these tests can be done right at your site so you can see the results for yourself.

This particular test is to demonstrate the recovery of copper cathode from a copper sulphate feed solution.  We can test a range of feed materials to recover not only copper, but also silver, nickel, tin and others.  This copper sulphate solution was prepared ahead of time and roughly 3L transferred to the feed tank.

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Topics: copper, electrowinning, emew

5 Performance-Boosting Mobile Apps for Metal and Water Professionals

Posted by Alex Barshai on Dec 5, 2016 3:55:33 PM

Modern mobile technology offers tech professionals various ways to stay on top of things when it comes to equipment news, technology updates, or resource price fluctuations. We gathered together five mobile applications that can help metal and wastewater professionals keep up with rapidly changing industry trends. 

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Topics: environmental, wastewater treatment, metal recycling

Liberating Copper and Nickel: A True Story

Posted by Dora Ip on Nov 10, 2016 5:21:07 PM

What pops into your mind when you see the word, "liberation"?

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The word liberation comes from the latin word, liberatus, which literally means "to set free" or "to deliver", and can easily apply to myriad of different topics from politics and religion to science and industry.

Particularly in the copper industry, the word liberation applies to the act of freeing copper specifically from refinery bleed electrolyte. The process that starts with mining and carries on through smelting and electrorefining is complex with many process operations.  Let's take a closer look at the story of 'liberating copper'.  

On average, mined ore contains about 1% copper and in order to recover this copper from the rock it requires several physical and chemical processing and refining steps in order to produce market ready copper metal.

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Topics: copper, nickel, Refining

Infographic: Your Clear way to emew®

Posted by Dora Ip on Nov 7, 2016 1:50:38 PM

As with many things, sometimes we need a map to guide us to our chosen destination. Same can be said for metal recovery. Have you found yourself with a throughput of material that you know has salvagable metals in it, such as copper, silver, tin, or nickel? ...while also scrambling to figure out who you need to talk to for your metal recovery needs?

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Topics: emew

5 Amazing Environmental Restorations

Posted by Alex Barshai on Oct 24, 2016 12:28:53 PM
Pollution has become a part of our daily lives. Everywhere we go we are exposed to various types of pollution such as noise, air, energy, light, and others. Pollution can be the result of natural source, as well as human-made. The leading cause of pollution is considered to be motor vehicle emissions. However, it is closely followed by chemical plants, coal-powered power plants, oil refineries, nuclear waste, farms, metal and plastic production, and other heavy industry. Today I wanted to talk about 5 amazing environmental restorations or polluted locations that were efficiently cleaned up by local governments.
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Topics: environmental

emew® Power Consumption

Posted by Alex Barshai on Oct 17, 2016 10:33:04 AM
A common question we get here at Electrometals is:  “What is the power consumption of emew® electrowinning technology”.  This is a very important question because power consumption is one of most significant costs involved in electrowinning, regardless of whether it is conventional or emew®. 
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Topics: copper, emew

Can I recover copper from this?

Posted by Trevor Bergfeldt on Oct 11, 2016 10:11:32 AM

A question that we hear from Clients every day is "Can I recover {metal} 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 {metal} from this?"

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

The Ultimate Solution to Low-Grade Mine Waters

Posted by Dora Ip on Sep 26, 2016 4:10:09 PM

As copper continues to be a rich and desired resource for a variety of products such as electrical wire, building infrastructure, electronics and other technology alike, copper process plants have responded by striving to continuously optimize and capture as much copper as possible from their mining processes. 

 

Mining processes have always looked for different ways to optimize their operations such as saving water, using less energy, and minimize on-site waste streams or tailings. Some of these optimizing techniques have included process water recycling from clarified tailings, transfering energy between solutions in heat exchangers, incorporating more gravity controlled flows between processes instead of using pumps, or recovering lost metal from waste streams. 

 

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Topics: copper, ion exchange, mining, emew