Diamond Miners Respond

Suffering from lower jewelry demand over much of the past 10 years, the world’s diamond industry picked up last year, at least in volume terms

Since the last occasion when E&MJ took an in-depth look at the world diamond industry (September 2011, pp.54-63), the world’s diamond producers have continued the process of restructuring that began in the early 2000s when De Beers began to relinquish its traditional role of industry custodian. In the intervening period, statistics compiled by the Kimberley Process Certification Scheme (KPCS) indicate that producers responded in no mean way to reduced consumer demand, particularly in the aftermath of the 2008 global economic downturn, with output fluctuating within a fairly narrow band between 2009 and 2015, and only showing signs of picking up again last year.

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EcoTails: A New Approach to Large Scale Tailings Disposal

Co-mingling coarse material with wetter filtered tails could enable the cost-effective construction of safer TSFs

The reality that every refining process faces is that for every product stream, there is a waste stream. Sometimes the reject can be recycled, but with large-scale bulk material handling applications, such as mineral processing, it’s simply not practical. With mining operations pursuing lower grade deposits, the industry needs a safe and cost-effective solution for tailings storage facilities (TSFs) capable of accommodating a 150,000 metric tons per day (mt/d).

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Screening the Options

A look at what’s new in products and services designed to improve vibrating screen value and performance

In the mechanical world, a machine that shakes is often a machine that breaks. That’s not the case in mineral processing, where thousands of vibrating screens currently in operation are expected — and engineered — to shake, vibrate or oscillate continuously shift after shift, providing predictable and reliable dewatering and particle-separation performance.

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Russian Miners Invest in Additional Capacity

Despite currency fluctuations and sanctions, Russian miners plan to supply more diamonds and minerals to export markets

The economic crisis in the Russian Federation, created by Western sanctions and falling global oil prices, at first glance seemed to be manna from heaven for the country’s mining industry. The foreign exchange rate for the Russian Ruble collapsed three times recently and each time export revenues surged, benefiting domestic miners. Even today, with the Ruble not as weak as it once was, export supplies are determining the direction of the country’s mining sector for the coming decade.

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