emew Blog

Correlation between metal abundance, price and recycling.

Posted by Alex Barshai on Aug 1, 2017 10:08:41 AM
After centuries of global mining activity, ore deposits are continually decreasing in mineral grade.  What would have been considered 'tailings' or discard from mines only a century ago, are in many cases considered high grade deposits today.  In order to economically recover metals from these lower grade resources requires more and more earth to be moved, resulting in mining operations becoming larger and larger.  
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Topics: metal recycling, mining, Refining, General

Leaching in Metallurgy and Metal Recovery

Posted by Sara Wollschlaeger on Jul 10, 2017 12:57:15 PM

Tea & Metal Recovery: An Unlikely Comparison

What do your morning cup of tea and a metal recovery plant have in common? Not a whole lot, is what you would hope! However, this is where you are mistaken. The simple act of steeping tea is, in fact, very similar to the process of leaching in metal recovery.

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Topics: Leaching, Refinery Optimization

Metal recovery plants - monitoring, optimization, and fault prevention.

Posted by Alex Barshai on Jun 27, 2017 11:37:45 AM

With much of the world rapidly progressing towards everything IoT, machine learning, and smart algorithms, many resource-based companies in industries such as mining, refining, and other industrial areas are still dragging their feet. The need is there, the technology is available – so what prevents some companies from jumping on the data analytics train?

Let’s look at some operational parameters that can be affected by lack of action and how technology can benefit the metal recovery industry.

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Topics: Data Analytics, Refinery Optimization

Five Things You Should Know About Metal Powder Production

Posted by Alex Barshai on Jun 20, 2017 4:20:28 PM

In electroplating, powders can be a very bad thing, but sometimes bad can be good. We are going to discuss doing a ‘bad thing’, but doing it consistently well.

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Topics: metal powders, Advanced Metal Powders

Electrocoagulation 101

Posted by Alex Barshai on Jun 7, 2017 11:57:07 AM

Electrocoagulation (EC) is an electrolytic process that is used mostly for wastewater and industrial process water treatment. Due to its unique ability to remove contaminants such as emulsified oils, suspended solids and dissolved metals, electrocoagulation has become one of the fastest growing technologies in this area. There are various devices and systems that comprise the basic principle of electrocoagulation which I would like to explain in this article.

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Topics: electrocoagulation, Industrial Waste & Water

10 Questions Answered About Electrowinning and Electrorefining

Posted by Alex Barshai on Apr 17, 2017 9:33:41 AM

1. What is electrowinning?

Electrowinning is a process in which metal ions present in an electrically conductive solution are separated using a direct current. This is achieved when a direct current is applied across an anode and cathode that are submerged in an electrically conductive solution causing the metal to deposit on the cathode. We say that metals like these were electrowon.

 

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Topics: electrowinning, Refinery Optimization

3 Methods of Nonferrous Metal Recycling

Posted by Alex Barshai on Apr 10, 2017 2:37:54 PM

In a world which is increasingly demanding sustainability, nonferrous metal recycling has become a very important practice. Opting for recycling does not only mean being responsible towards the environment and reducing the carbon footprint, it is also a very reasonable business in industries that rely on using non-renewable resources.

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Topics: wastewater treatment, metal recycling, electrowinning, Refinery Optimization

Applications of Copper Electrowinning

Posted by Trevor Bergfeldt on Apr 4, 2017 12:47:28 PM

The electrowinning of copper is an electrolytic process that uses electricity to recover dissolved copper from solution as copper plate, also known as ‘cathode’.


Cu2+(aq) + 2e- -->Cu(s)        (E= +0.34V)

 

Copper easily dissolves in acids including sulphuric, nitric and hydrochloric. Recovering copper cathode from acidic sulphate solutions using electrowinning is a well-known and fairly straightforward process that has been in commercial use since the late 19th century.

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Topics: copper, electrowinning, emew, Refinery Optimization

[VIDEO] emew Advanced Copper Liberators

Posted by Sonny Samra on Mar 28, 2017 12:33:53 PM
Thanks for joining me today for this discussion on emew advanced liberators. Let's start by looking at a simplified copper refining process flow diagram. Copper Concentrate is fed to the smelting process where fire-refined copper is produced. Next onto anode casting, where 99% anode copper is formed followed by electrorefining of copper to produce LME grade copper cathode. But we aren’t done there, the refinery bleed is then sent to copper liberators to control the copper concentration and impurities in the process. It is at this step, where we will focus our time today.
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Topics: electrowinning, mining, emew, Refining, Refinery Optimization

emewBots - the Future of Mobile Metal Recovery Plants

Posted by Sonny Samra on Mar 21, 2017 3:49:44 PM
 
As modern society and technology move at a rapidly evolving pace each day, consumers and businesses are constantly searching for innovative methods to accomplish tasks more efficiently and conveniently. There are countless examples of technology mobilization that has led to increased efficiency and convenience, for both consumers and businesses, from stereos to the Walkman, typewriters to laptops, and rotary phones to cellular phones; all the innovations listed have enhanced the ease and productivity of many everyday tasks.
 
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Topics: electrowinning, emew, General