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Alex Barshai

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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 that is increasingly demanding sustainability, nonferrous metal recycling has become a very important practice. Opting for recycling does not only mean being responsible for 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

Advanced Green Technologies for Wastewater Treatment

Posted by Alex Barshai on Mar 6, 2017 2:22:09 PM

Objectives of advanced green technologies

Advanced green technologies (AGTs) refer to a group of practical methodologies and materials based, among others, on non-toxic chemical processes, clean energies, and environmental monitoring to slow down or correct the negative impact induced by human activities.

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Topics: Wastewater Treatment

Nickel Cathode Harvesting Demonstration

Posted by Alex Barshai on Feb 23, 2017 11:10:58 AM
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Topics: electrowinning, nickel, emew, Refinery Optimization

Copper Mined vs Copper Refined (by Country)

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

Where is copper mined and refined?

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, Small Mine Production

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, General

emew Power Consumption

Posted by Alex Barshai on Oct 17, 2016 10:33:04 AM
A common question we get here at emewCorporation 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, General

The 411 on Nickel Powder

Posted by Alex Barshai on Aug 3, 2016 12:19:05 PM

Nickel and Nickel Powders

Nickel is a lustrous silvery-white metal with a tint of gold. While nickel is the 5 th most common element on earth, most of it is inaccessible in the Earth’s core. Nickel and nickel powder are widely used in hundreds of thousands of products, in most cases as alloys with other metals, such as chromium. Nickel alloys are used to create stainless steel and heat-resisting steel and provide some great anti-corrosion capabilities.
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Topics: metal recycling, Advanced Metal Powders

3 Ways Wastewater Treatment Plants Can Make You Rich

Posted by Alex Barshai on Jul 18, 2016 4:41:31 PM

 

Billions of litres of wastewater are treated every year in wastewater treatment plants around the world. This wastewater, both industrial and municipal, can contain various pollutants depending on the source. Wastewater may contain soap, waste products, food scraps, human waste, oils and in some cases, metals. The main goal of wastewater treatment is to preserve the environment and keep the pollutants out of rivers and oceans.

 

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Topics: Wastewater Treatment

Electrowinning 102: Electrowinning of Silver

Posted by Alex Barshai on Jun 2, 2016 11:12:01 AM

While silver is definitely a precious metal, the usages of this metal are much wider than just the jewelry industry. Silver is a great electro-conductor which makes it a beneficial metal in the manufacturing of electrical and electronic components. Silver is a cost-effective and high-performance metal for the electronics industry. For example, it can be used in copper or brass connectors in order to increase conductivity. In other cases, silver is used as an anti-tarnishing plating and can prevent scratches and retain the attractiveness of parts.

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Topics: electrowinning, Refinery Optimization