THEORETICAL Limiting Grade Recovery Curve
To generate a limiting grade-recovery curve, three points are shown for each mineral. The left most end point of the curve represents the feed grade of the composite. The middle point of each curve represents the concentrate grade produced when all of the particles bearing target mineral are recovered. The far right end point represents the […]
Top 5 biggest US coal mines in 2013 in terms of production
The North-American coal mines with the biggest production rates in 2013 aren’t necessarily the largest in size or the ones with more workers. But one thing is for sure: they are all located in Wyoming, the US capital of coal. 1. North Antelope Rochelle Prodution in 2013: 100.703 tonnes Owner/explorer: Peabody Energy Location: Wyoming 2. Black […]
GE and Komatsu working on next generation mining equipment
The companies GE Transportation and Komatsu have teamed up to develop the next generation of underground mining equipment. The firms signed a joint venture agreement and are now ready to pool resources in an effort to boost innovation in this industry. The new company, called Komatsu GE Mining Systems and equally owned by the two holders, will […]
Nevada’s Jerritt Canyon mine criticized for safety violations
The company Veris Gold USA, owner and operator of the Jerritt Canyon mine in Elko County, Nevada, is being the target of hard criticism by the assistant US secretary of labor. Apparently the gold mine has failed to protect its workers after federal inspectors issued more than 60 citations and orders related to health and safety […]
Illegal gold miner rescued after 13 days lost
An illegal miner was found in the Osa Peninsula’s Corcovado National Park, in Costa Rica, where he got lost almost two weeks ago. Joel Cerdas Solórzano, locally known as “Pizote the gold miner”, went missing on January 23 while illegally mining gold inside the boundaries of the park. Three days later, a rescue team composed of officials from the National System […]
The five largest machines in the mining industry
Some mining machines are true beasts when it comes to their power, size and weight. Check out these five examples, the largest devices currently used in the industry, to see what we are talking about. 1. Bucket Wheel Excavator Bucket-wheel excavators are the largest machines ever used in the mining industry. Actually, one of them, the […]
The wonderful uses of silver [infographic]
Did you know silver is one of the most important substances on the entire planet? Besides being pretty and perfect for the jewelry field, silver also has amazing properties that make it perfect for different electrical uses, among others you can discover with the help of this infographic. Infographic by Visual.ly for Physical Gold via Mining.com
Mining process based on bacterias unlocks gold in South Africa
A bacteria-rich process currently being used in Barberton, a town in the Mpumalanga province of South Africa, can help liberate ultra-fine gold locked in sulphide crystals. The experiment, called Biox technology, is happening in three mines owned by Pan African Resources. Besides these three pits, there are other five gold mines around the world currently using the biological oxidation […]
Europe and China with cases of dam failure sites after 2000
The mining industry currently faces a lot of challenges, but one of them is definitely to keep tailing dams from collapsing or leaking. These embankments, which are built by geotechnical engineers with steep slopes using the coarse fraction of the tailings and saving costs, are supposed to be a safe solution, but there are different reasons that eventually cause some of […]
Canada mines support groundbreaking rules
In an effort to break the corruption blanket that many times chokes the mining industry, the Canadian sector is endorsing a plan that would boost transparency. The main measure states that it would become mandatory reporting to provincial securities commissions all project-related payments that companies make to the governments. The move is being praised and […]