emew Blog

Sara Wollschlaeger

Recent Posts

FAQ: Operating Cost of emew Electrowinning Plant

Posted by Sara Wollschlaeger on Aug 13, 2018 4:31:30 PM
In this video we answer questions about how to size your emew plant, what are typical delivery times for emew equipment, and what is the cost of an emew plant.
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Topics: Video

Cobalt and Nickel wastewater: How much money are you flushing down the drain?

Posted by Sara Wollschlaeger on Aug 8, 2018 4:40:18 PM

Two case studies on the value of metal recovery from wastewater

It’s no secret that industrial pollution is harmful to the environment and human health.
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Topics: Wastewater Treatment

FAQ: emew VS Conventional Electrowinning

Posted by Sara Wollschlaeger on Jul 30, 2018 2:30:39 PM
In this video we will discuss why the emew cell outperforms conventional electrowinning technology.
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Topics: Video

FAQ: Acid Mist

Posted by Sara Wollschlaeger on Jul 23, 2018 3:53:37 PM
In this video we answer questions about what happens to the gases that are produced as part of the normal electrowinning process and why emew cell doesn't release acid mist into the environment.
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Topics: Video

FAQ: Types of emew cells and production rate

Posted by Sara Wollschlaeger on Jun 26, 2018 2:12:05 PM
Today we would like to answer some frequently asked questions about types of emew cells and their production capacities.
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Topics: Video

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.

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

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.

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Topics: Advanced Battery Materials