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, Refinery Optimization

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

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 well performing metal for the 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

Electrowinning 101: What is electrowinning?

Posted by Alex Barshai on May 24, 2016 12:30:20 PM

Electrowinning is a widely used technology in modern metal recovery, mining, refining and waste water treatment applications. Electrowinning is one of the oldest electrolytic processes known and was first introduced in 1807 by English chemist Humphry Davy. After 66 long years the first commercial refinery Balbach and Sons Refining and Smelting Company adopted the electrowinning technology and shortly after became the second largest metal processing company in the United States.

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Topics: electrowinning, Refinery Optimization