Sunday 26 February 2023

Sunday in Denver

 I arrived in Denver yesterday afternoon and due to the 7 hours time difference I was up and about early this morning, walking the short distance from the Curtis Hotel to the Convention Centre to register early.

As always I met up for coffee with Rob Dunne, who was on the Editorial Board of Minerals Engineering on its inception 35 years ago. Rob is now a semi-retired consultant in Perth, Australia and is passionate about mentoring young people in our industry, something which he is much involved with at Curtin University. Rob is involved with the SME’s Mineral Processing Division’s Awards Committee and is also involved with next year’s International Mineral Processing Congress, which will be held in Washington DC and organised by SME. 

I then spent a few hours strolling along 16th Street, to the Capitol Building and on the way back spotting Daniel Gleeson and Phil Playle of International Mining enjoying the 16C weather on the 16th Street Mall.

Daniel and Phil enjoying the balmy weather 

After a quick lunch it was back to the hotel ready for the late afternoon exhibition opening. I will publish my report on the event early next week.

#MINEXCHANGE2023

Thursday 23 February 2023

Kemtec Africa, the latest sponsor of Flotation '23

In 2017 we were pleased to announce that Kemtec, a new Australian company, supplying specialty flotation reagents to tackle plant challenges, was to sponsor Flotation '17 in Cape Town. Two years later we welcomed the young company back as a sponsor of Flotation '19.

The company has grown since then and is now a global group of specialised mineral processing reagent companies, located in USA, Australia, Mexico and China, with Kemtec Africa servicing the African continent.  In 2021 we welcomed Kemtec Africa as a sponsor of Flotation '21, which due to Covid was an online conference, and now we welcome the company to November's Flotation '23 in Cape Town, which will be our first face to face conference in the flotation series in 4 years.

Current sponsors

We are currently calling for abstracts for the conference, which should be submitted via the online portal by the end of May.

#Flotation23

Monday 20 February 2023

Technology Metals for a Green Future: The Role of Biomining

Current global efforts to achieve net-zero carbon emissions is leading to increased mining of ‘Technology Metals’. These are the metals needed for ‘green’ technologies such as battery-powered electric vehicles, solar photovoltaics and wind power generation. Examples include cobalt, lithium, rare earth elements, tin, copper and tungsten. Although their current annual global production is not large (~100-100000 T) demand is increasing significantly. 

This rapid increase in demand is in turn driving a need for sustainable mining practices to exploit them profitably while protecting ecosystems and human rights and health. Biomining is such a practice, and is well-established for extraction of metals such as copper. At MEI's Biomining '23 in Falmouth in June, Prof. Karen Hudson-Edwards will review biomining of copper and other technology metals, highlighting research in the NEMO (Near-zero-waste recycling of low-grade sulfidic mining waste for critical-metals, mineral and construction raw-material production in a circular economy) and Met4Tech (Interdisciplinary circular economy centre for technology metals) projects.

Karen is Professor in Sustainable Mining at the Camborne School of Mines and Environment and Sustainability Institute at the University of Exeter, UK.  She is an environmental geochemist and mineralogist working in the fields of mine waste characterisation and remediation, sustainable resource extraction (including biomining), mining and circular economy. She has published over 125 peer-reviewed papers in these areas  with colleagues in microbiology, geomorphology, engineering, business and social science. 

She was the 2012/3 Mineralogical Society of Great Britain and Ireland’s Hallimond Lecturer, the 2016 Australian Institute of Mining and Metallurgy New Zealand's Visiting Lecturer and the 2019 European Association of Geochemistry’s Distinguished Lecturer.  Karen was recently named among the top 100 most inspiring women in mining, being chosen for inclusion in the 2022 ‘100 Global Inspirational Women in Mining’ publication. This book, published biennially, highlights the wealth of female talent within the global mining industry and celebrates 100 women from around the world who go “above and beyond” and contribute so much to the industry and, as a result, are role models for everyone. 

#Biomining23

Thursday 16 February 2023

February sundowner: news of lithium and of the passing of a larger than life man of mining

Last night's Cornish Mining Sundowner was held at the County Arms Hotel Truro, with an attendance of about twenty.

We regularly have geologists and metallurgists from Cornish Lithium at the sundowners, as their lithium from brine operation is based locally in west Cornwall. They are also developing lithium extraction from mica in granite in the china clay area of east Cornwall near St. Austell, as is the nearby company British Lithium Ltd. It was good to have British Lithium represented at the sundowner last night by their hydrometallurgy manager Katia Omelchuk, who brought along some of her friends, some former British Lithium employees.

Katia (centre) and friends

British Lithium is focused on sustainable, chemical-free, processing and an entirely novel approach to the commercial production of battery-grade lithium carbonate from mica and is planning to produce 21,000 tonnes of lithium carbonate each year from its single quarrying and refining site.

The latest results indicate that the company’s unique process of sustainably extracting lithium from ores without using acids or other corrosive chemicals, called Li-Sep, is consistently achieving a recovery rate of more than 90%. The high recovery rate is allowing the company to go on to produce a lithium carbonate grading better than 99.9% purity.

The company is currently ramping up from pilot-scale operations towards full-scale production. “For the past few months, we have been focusing on the maximisation of lithium recovery in the calcination and leaching stages. We are very pleased to announce that the results are very positive. By the end of this year, we hope to generate enough data to complete our pre-feasibility study. There is huge global demand for lithium and the UK needs to have its own domestic supply" said Katia.

Many of the sundowner regulars were at the Mawnan Old Church, near Falmouth, five days ago for the funeral of one of Cornish mining's larger than life characters, Malcolm Hooper, who died at the age of 81. Although a few years older than me I always referred to him as one of my students, as he was in my mineral processing class for a module on the Camborne School of Mines MSc Mining course, from which he graduated in 1988. He then travelled the world as a mining consultant, but attended the Cornish sundowners regularly until the onset of his long illness a few years ago.

Malcolm (left) with Barbara Wills and Bentley Orchard at the October 2015 sundowner

A true polymath, among his many accomplishments he was an expert skier and we learned a lot from him when he joined the CSM ski trip to Meribel, France, in 1994.

Malcolm with me and Amanda, off-piste in France, 1994

The sundowner returns to Falmouth next month, so if you are in the area please call in and see us at the Chain Locker on Thursday March 16th from 5.30pm.

Monday 13 February 2023

Nesch Mintec, an exciting new sponsor for Flotation '23

It is always good to welcome new companies to MEI Conferences, and none more so than Nesch Mintec Tanzania Ltd, a privately owned company registered in Tanzania, who will be sponsoring Flotation '23 in Cape Town in November.

Nesch Mintek  was formed mainly to offer Laboratory Analytical Services and Consultancy in Mineral Processing and Extractive Metallurgy to the mining sector of Tanzania, East Africa and beyond. 

Mining has become one of the fast-growing industries in Tanzania which also contributes much to the economy of the country. Due to this rapid growth Nesch Mintech was started to ease some of the challenges which small to large scale miners are facing in Tanzania. These miners had little knowledge on how to start, operate and to troubleshoot some of the challenges in their mineral processing activities, which had a great impact on the growth of the mining industry.

We look forward to meeting their team, who will be exhibiting in Cape Town, and to discover more of their activities in East Africa. The company joins the growing group of companies who are sponsoring Flotation '23.

Friday 10 February 2023

Only two weeks before off to Denver for my 20th SME Annual Meeting

Two weeks today I will be travelling to Denver for the Annual Meeting of the Society for Mining, Metallurgy and Exploration (SME). 

The Colorado Convention Centre, Denver

The first SME Annual Meeting that I attended was in Denver in 1987 and this month will be my 20th attendance, and my 10th in Denver, and over those 36 years I have been fortunate to spend time in many of the major cities of the American west, which included Denver (4 times), Albuquerque, Reno, Cincinnati and Salt Lake City prior to 2010. In 2010 I began reporting annually for the blog, and the links are below:

Phoenix 2010
Denver 2011
Seattle 2012
Denver 2013
Salt Lake City 2014
Denver 2015
Phoenix 2016
Denver 2017
Minneapolis 2018
Denver 2019
Phoenix 2020
Salt Lake City 2022

I will be reporting on the 2023 conference and exhibition, so if you have any interesting mineral processing news that you would like to share, please get in touch with me prior to the event, and I look forward to seeing some of you in Denver.

@barrywills
#MINEXCHANGE2023

Sunday 5 February 2023

Explore Falmouth by e-bike

If you are intending to visit Falmouth in June for Biomining '23 or Sustainable Minerals '23, or for any other reason, you should make time to explore this beautiful Cornish town, and its easy access to other parts of Cornwall, by foot, car, train or bus. Before planning your trip take a look at:

10 good reasons to spend some time in Falmouth 
Make the most of your time in Falmouth 
Swanpool Beach to Falmouth Town  
Falmouth's beautiful North Helford region  

And now an added incentive if you are reasonably fit. For a modest fee it is now possible to flatten Falmouth's famous hills by renting e-bikes from docking bays spread around the town.  The bikes can be rented for single or longer journeys via the Beryl app.

So make the most of your time in Falmouth and Cornwall- you won't regret it.

@barrywills

Wednesday 1 February 2023

January summary: travels to new places and Cornwall’s space disappointment

Barbara and I are spending 10 days with Jon and family at the moment, in their new home in Luxembourg, the small European country, only three quarters the size of Cornwall, surrounded by Belgium, Germany and France. While Jon works from home, Kathryn is Director of the European Space Resources Innovation Centre at the Luxembourg Institute of Science and Technology. 


Luxembourg has a rich history, with narrow medieval streets, castles and densely forested hills, but it also has a more recent industrial past, having its own iron ore mines and steel industry. The Luxembourg ore contained only around 34% iron, however, and in the second half of the 20th century ore from Sweden, Mauritania and Brazil, containing up to 74% Fe, became a viable option, and the last of the country’s iron ore mines closed in 1981.

It is a surreal experience to walk down the main shopping precinct just off the main road in the country’s second city, Esch-sur-Alzette, and to see the two giant blast furnaces of the Belval steel works towering over the shops and cafes. The last one closed in 1997 but they were both left as a monument to the industrial glory days.

We were away roughly half of January. The first two weeks of the month we spent in the Spanish Canary Islands,  located in the Atlantic Ocean off the coast of Africa. After a few days on the island of Tenerife we took the short ferry journey westwards to La Gomera, the third smallest of the eight main islands of this volcanic archipelago and the only one that has not had any volcanic activity in the last 2 million years. This prolonged inactivity has allowed much erosion, producing deep gullies and dramatic contours rising to an altitude of almost 1500 metres, and the drive from the ferry terminal at San Sebastion across the mountains to our base at Playa de Santiago was truly spectacular.

La Gomera is famed for its hiking trails
The rugged La Gomera coast. In the background is Tenerife's Mount Teide,
whose summit is the highest point above sea level in the islands of the Atlantic

While we were in La Gomera there was bitter disappointment in Cornwall on the 9th of the month when the much antipated  inaugural orbital space launch from the UK ended in failure. 

Virgin Orbit's jumbo jet, Cosmic Girl, took off from Cornwall’s Newquay airport with  the LauncherOne rocket attached beneath its wing. It flew up to 10.7 km where the rocket detached and blasted off to hopefully put nine satellites into orbit at an altitude of 555 km.

The rocket appeared to be ascending correctly but then suffered an "anomaly" and the rocket and  the satellites it was carrying were lost, but the carrier jumbo jet returned safely to base. Hopefully further launches  will be attempted over the next 12 months, although the failure has cast doubt over future missions.

Last month was the first January since 1988 that I have had no involvement with Minerals Engineering journal. My 35 year tenure officially ended on December 31st. The journal was a major part of my professional life, interesting and challenging (see YouTube), which gave me many opportunities to travel and to meet many interesting people around the world, no more so than Dean Eastbury, who was my Executive Publishing Manager for eight and a half years. Dean became a great friend, not only to me but to the family, so I was pleased when Christopher Greenwell, Publishing Director for Chemical and Environmental Science & Engineering at Elsevier, invited Dean and his partner Penny, and Amanda and husband Richard to share a retirement dinner at our old conference venue, the St. Michael's Hotel in Falmouth.

Barbara, Amanda, Richard, me, Penny, Dean and Chris

And finally, it is not often we get the white stuff in Cornwall, but when we do, as we did mid-month, the industrial landscape is transformed. The wonderful drone photo below, in the Camborne mining area, is courtesy of https://3deepmedia.com


On our return from Luxembourg I will be travelling again only two weeks later, this time to Denver for the Annual SME conference and exhibition. I hope to see some of you there!

@barrywills