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.

Topics: metal powders, Advanced Metal Powders

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.

Topics: Wastewater Treatment

 

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.

 

Topics: electrowinning, Refinery Optimization

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.

Topics: Wastewater Treatment, metal recycling, electrowinning, Refinery Optimization

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.

Topics: Wastewater Treatment

Topics: electrowinning, nickel, emew, Refinery Optimization

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.

Topics: copper, Small Mine Production

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.

Topics: copper, electrowinning, emew, General

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. 

Topics: copper, emew, General

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.

Topics: metal recycling, Advanced Metal Powders