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Information and links on a variety of technical aspects of mining & mineral exploration.
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 Thermo Fisher Scientific releases ARL SMS-3500 automated spectrometerThursday, November 12, 2009Thermo Fisher Scientific has released the ARL SMS-3500 automated optical emission and X-ray fluorescence spectrometers, designed for the mining and metals industries. read more » Thermodynamics of selective roasting of arsenic from tennantite containing copper concentratesMonday, November 09, 2009Australia exports ~ 3 millions of tpa of base metals in form of concentrate and refined metals. Base metal ores contain low levels (1- 104 ppm) of toxic/hazardous elements (As, Sb, Bi, Cd, Hg, Se, Te, Po, Th, U, ..). Smelters impose treatment charges and penalty payment on minor elements in concentrates and reject those beyond the level they can safely process. read more » Water: Coalbed methane decision adds salt to Montana farmers' wounds Tuesday, November 03, 2009Roger Muggli has worked his family's 1,700-acre farm in east Montana almost the entire length of his 61 years, and he considers the nearby Tongue River to be the very lifeblood of his alfalfa and barley crops. But three years ago, something happened to the river's water, Muggli said, as routine irrigation began turning the Custer County farm's once-rich soil the consistency of mayonnaise. read more » U.S. water use down but migration to West a concernFriday, October 30, 2009Steady migration to the hot and dry Western states along with water use by coal and nuclear plants are undermining conservation efforts that have kept U.S. water use steady in recent years, a study said on Thursday. read more » Chemical optimisation and sustainability in flotationWednesday, September 30, 2009The depletion of mineral resources associated with the cost and limited availability of water and energy is putting pressure on the industry to optimise its processes, especially concentration by flotation, Ricardo Capanema reports. read more » To leach or not to leach?Wednesday, September 30, 2009In-situ leaching (ISL) or in-situ recovery was developed in the mid 1970s as a method for extracting uranium from typical roll-front type deposits located in water saturated permeable rocks that were not suitable for conventional mining. It was conceived independently in both the (former) USSR and the USA using similar approaches in engineering and technology. read more » Planning for the futureWednesday, September 30, 2009In the introduction to ICMM's Planning for Integrated Mine Closure: Toolkit, the authors describe planning for closure as being "about how to design a mine operation in order to facilitate closure. When a project is designed,there is a lot of scope to do so with closure in mind..." read more » Steeling for a comebackWednesday, September 30, 2009At the beginning of August, Macquarie Research described iron ore prices as being "in transition." Announcing "progress" in its 2009 iron ore price negotiations, BHP Billiton highlighted what it views as significant progress in the evolution away from iron ore pricing dominated by an annually negotiated benchmark price towards a "transparent" pricing system based on index (or spot pricing). read more » Viva Las CrucesWednesday, September 30, 2009After an almost year-long suspension Las Cruces in southern Spain made the final leap into production in June. Daniel Gleeson examines a mine reporting contained copper of some 2,425 MIb, an estimated 15-year mine life and some exciting copper processing advances. read more » The road to GrasbergWednesday, September 30, 2009Until Bechtel built the first road in the early 1970s, and Freeport Indonesia subsequently developed the area, subrivers were the only access inland to the foothills of the Jayawijaya mountain range on Irian Jaya that hosts what is arguably the greatest ore complex discovered in the world to date, the Grasberg and Ertsberg copper gold deposits. read more » Mercury-tainted fish found widely in U.S. streamsThursday, August 20, 2009Scientists have detected mercury contamination in every one of hundreds of fish sampled from 291 freshwater streams, according to a U.S. government study released on Wednesday. More than a quarter of those fish contained concentrations of mercury exceeding levels set by the Environmental Protection Agency for the protection of people who eat age amounts of fish, the U.S. Geological Survey report said. read more » The gold metallurgy of Isaac NewtonMonday, August 03, 2009The science of metals had always appealed to Isaac Newton and when, after the conclusion of his remarkable contributions to mathematics and physics, he was invited to take charge of the Royal Mint in London he was able not only to display his great gifts as an administrator but also to exercise his interest in metals and alloys and particularly in the metallurgy of gold. read more » Gold metallurgy in the Twelfth CenturyMonday, August 03, 2009The simple basic properties of gold – its colour, great malleability and ductility, and its immunity from oxidation even on melting – were well known in the ancient civilizations. In prehistoric times, in Egypt, Babylon and other lands of the Near East, the fabrication of gold articles was equally well understood, as the many brief references throughout the Old Testament establish. read more » Flotation '09 - MEI's 3rd Flotation ConferenceTuesday, July 21, 2009It is 103 years since froth flotation was patented, and it is often said to be the 20th century's most important technological development. read more » Online moisture analyser (for bulks such as iron ore or coal) easy to commission, calibrate and serviceFriday, June 26, 2009Callidan Instruments, the manufacturer of MoistScan®, has recently added remote access functionality to its range of online microwave moisture analysers. The MoistScan is now equipped with internet-based wireless connectivity making remote calibration and service easy and cost effective. read more » Electronic Journal on California Gold Rush and Gold MiningThursday, May 14, 2009The Sierra College Press has published an electronic journal on the California Gold Rush and Gold Mining. This eJournal is the latest edition of Snowy Range Reflections: A Journal of Sierra Nevada History and Biography. read more » Coal through a microscopeMonday, May 11, 2009If you think that coal is a boring black rock then you have never seen it through a transmitted light microscope. The microscope reveals coal's hidden beauty as well as its composition. read more » MIPAC Unveils CellView® for Copper Electro-refining and WinningWednesday, October 22, 2008MIPAC introduces new wireless technology for tankhouse management that significantly improves copper and other electrolytic process operations read more » Blasting and Fragmentation Software from BlastwareMonday, September 29, 2008From Blastware comes new software to simulate the charge delay times involved in blasting. read more » Heap Leach Pad RisksWednesday, September 03, 2008Risk management enables you to identify risks and take action to avoid them before you get hurt. At least that is the theory. read more » InfomimetThursday, August 28, 2008Here is a link to a fascinating site from Brazil. I refer to Infomimet which describes itself as an “important information source for the mining, mineral and metallurgical sectors in the context of sustainable development.” read more » Xstrata Technology & MIPAC in Exclusive Service AgreementTuesday, July 08, 2008MIPAC & Xstrata Technology have announced the formalisation of their long-standing relationship, with an exclusive Collaboration Agreement for the delivery of the ISASMELT™ & ISACONVERT™ smelting and copper converting technology. read more » In-Lake Tailings Disposal Tuesday, June 17, 2008A new report from the Globe and Mail states that sixteen Canadian mining companies have applied to dispose of mine tailings in lakes across the country. read more » Pierina Gold MineThursday, June 12, 2008GoldSim to the rescue again: an abstract for the conference on Tailings & Mine Waste ’08 tells of a water balance model for the Pierina Gold Mine in Peru using GoldSim for the entire plant. read more » MIPAC Delivering Advanced Process Control Solution for Xstrata ZincWednesday, April 30, 2008MIPAC, a respected world leader in process control, is working with Xstrata to improve operations in its Mt Isa Zinc Concentrator. MIPAC will help Xstrata to automate and optimise key processes in the plant read more » Non-Traditional Uranium MiningFriday, February 29, 2008Here is a way to get more uranium from old mines and simultaneously protect surface water quality. In the paper Non-Traditional Utilization of Uranium Deposits After Underground Mining Completion, Rapantova et al. write of recovery of uranium from groundwater read more » Copper Solvent ExtractionFriday, February 08, 2008Here is a link to a magnificent paper in the InfoMine library relevant to all metallurgists. The paper is called Technical Review – Copper Solvent Extraction in Hydrometallurgy. read more » Comminution TestsWednesday, January 23, 2008If you need to test your mine’s ore as part of a comminution study, you can do no better than get a copy of SGS’s booklet Comminution Tests. read more » HPGR Trade-Off StudiesTuesday, November 27, 2007TechnoMine has previously posted an article from Wardrop on High Pressure Grinding Rolls (HPGR) in the mining industry. read more » Conference of Metallurgists AbstractsWednesday, October 17, 2007At this link you will find the program and abstracts from a past Conference of Metallurgists. To keep you informed and help you decide, here are my edited versions of abstracts of papers that caught my attention. read more » Gekko Systems Short Info Program - Part 8Friday, September 7, 2007This is the last of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Gekko Systems Short Info Program - Part 7Friday, August 31, 2007This is the seventh of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Gekko Systems Short Info Program - Part 6Friday, August 24, 2007This is the sixth of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » International Solvent Extraction Conference 2008Thursday, August 23, 2007From Bruce A. Moyer, Technical Program Chair, ISEC 2008: The deadline is approaching for abstracts for the International Solvent Extraction Conference, ISEC 2008 read more » Pollution Problems in the Mineral and Metallurgical IndustriesTuesday, August 21, 2007For those with a taste for the out-of-the way, the insightful and the different, here is a fascinating small book: Pollution Problems in the Mineral and Metallurgical Industries read more » Solvent ExtractionWednesday, August 15, 2007In 1989 Elsevier published a book called Tailings Management: Problems and Solutions in the Mining Industry by Gordon M. Ritcey. Here is a brief review of the book read more » Gekko Systems Short Info Program - Part 5Wednesday, August 15, 2007This is the fifth of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Gekko Systems Short Info Program - Part 4Thursday, August 09, 2007This is the fourth of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Gekko Systems Short Info Program - Part 3Wednesday, August 01, 2007This is the third of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Heap Leach Pad RaincoatsMonday, July 30, 2007The water balance of a heap leach pad may be detrimentally affected during the rainy season by excessive infiltration from heavy rains. read more » Gekko Systems Short Info Program - Part 2Wednesday, July 25, 2007This is the second of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems. read more » Gekko Systems Short Info Program - Part 1Tuesday, July 17, 2007From Gekko Systems: This is the first of an eight week short information program that is intended to keep people in the mineral processing sector up to date with the developments at Gekko Systems.
read more » History of MetallurgyFriday, July 13, 2007A History of Metallurgy (1994) is edited by Fathi Habashi of the Department of Mining & Metallurgy, Laval University, Quebec City. It is a collection of articles from a multi-volume work. read more » Microwave Infrared TechnologiesFriday, April 27, 2007In a dim room in Denver, drinking after a snowy SME day, I chanced on a friendly & voluble fellow: Dr. Gus Van Weert. He told me in enthusiastic tones of his work. read more » DEM Solutions Particle MechanicsWednesday, April 11, 2007DEM Solutions software is used to simulate, analyze, and visualize particle flows so that you can get a feel for what is happening in a situation involving particle kinematics, momentum, and heat and mass transfer. read more » Mining LabsFriday, March 23, 2007At every stage of mining, a lab is needed to test some sample or other. During exploration there are soil and rock samples to test, during production there are metallurgical and environmental samples to test read more » ComminutionMonday, March 19, 2007International Mining, January 2007 features another of those great articles from John Chadwick with a catchy title and chock-full of content. This one is called Comminution Conundrum. read more » Application of High Pressure Grinding Rolls in the Mining IndustryFriday, March 16, 2007The application of High Pressure Grinding Rolls (HPGR) in the mining industry, especially as a replacement for the conventional Semiautogenous (SAG) milling process read more » Mining for the FutureTuesday, March 06, 2007There is no mining without human resources. People are ultimately what mining is all about. People to plan and run the mines. read more » Mine Chemical OpportunitiesMonday, February 26, 2007All the information you might need in 2007 on the what chemicals the mining industry will needs now and in the future. read more » BioteQ MexicoWednesday, February 21, 2007Technical and financial innovation in one project: Columbia Metals Corporation (also at this link) has contracted with BioteQ Environmental Technologies (also at this link) to construct and operate a copper recovery and water treatment plant read more » Franklin MiningWednesday, February 14, 2007A rare collection of technical and cost evaluation reports on a new mining project is available at the Franklin Mining, Inc site read more » Solution Mining IrrigationWednesday, February 07, 2007A well-produced brochure is more informative than a text book, and certainly more entertaining than most paper magazines stuffed with pale replications of marketing materials turned into fake-erudite articles. read more » Data MetallogenicaMonday, February 05, 2007Probably the most extraordinary website I have yet come across is Data Metallogenica on-line read more » I Think Mining BlogWednesday, January 31, 2007Some paper magazines will never die. They are the ones with high quality, thoughtful, well-written articles. The rest are doomed to fade and wither. Part of their problem is the competition of Blogs read more » Aditya Birla Minerals and IndiaWednesday, January 31, 2007The moral of this story is that news reports and Annual Reports can tell the curious engineers and technicians amongst us interesting tales of the trials and tribulations of mining read more » Silver Deposits - Analysis & MetallurgyThursday, January 19, 2007The method selection for silver analysis and the art and science of extracting silver metal from silver minerals... read more » Discrete Element Method (DEM)Thursday, November 30, 2006The sales brochures are readily available. The technical papers are not. What the computer software does is readily obvious. What can yet be done to benefit the mining industry is not. read more » Cyclones and KrebsWednesday, November 29, 2006The universal solution? At last computing power catches up with the need to analyze the real world. Solutions for the mining industry are not there yet, but the computer codes are standing ready read more » Proudfoot Case HistoriesMonday, November 27, 2006For the aficionado of mining case histories, there is a venerable cornucopia on the Proudfoot Consulting website. Here is an edited version of one they recently sent us read more » Zambian ProcessingThursday, November 23, 2006This from the pages of the Times of Zambia: Large scale mining companies have invested US$1.4 billion in plant rehabilitation, expansion and in new technology in the last five years, President Mwanawasa has said.
read more » Problem SolverFriday, November 10, 2006As the traditional diagnostic methods failed to provide any insight into the cause of the problem I found myself focussing more and more on the comments of the operator relative to the wind. read more » Phosphate RequestMonday, September 25, 2006Unusual requests sometime find their way to my desk. Sometimes I post them in accordance with the idea that doing so may help the sender and most importantly result in benefit to a reader of TechnoMine. read more » Met RequestMonday, September 18, 2006Can you help a student with information? Here is a request I received by e-mail from a student at the university that was the rival to that I attended. Therefore I must do anything I can to help in the interests of a long-standing academic rivalry. read more » Acid Mine DrainageThursday, September 14, 2006“Most sites have a lot of Fe in their acid mine drainage.” True. But how do you treat it? I do not know. But the answer is on the web. This is what I found. read more » CyclotecFriday, August 18, 2006Russians outwit Americans in patent resuscitation! You must love headlines like this. I use it to introduce the following that popped up one day in my e-mail inbox: Cyclotec, an engineering team from St. Petersburg, Russia read more » HJ3 Composite TechnologiesTuesday, August 22, 2006InfoMine will soon have Wikis and e-Forums on the pages of TechnoMine. In anticipation, here is the first competition: list the uses of high-strength carbon or glass filaments in a polymer resin in retrofitting and rehabilitating mine facilities. read more » |
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