gold mining tech

new gold mining technology to boost south african miners efficiency

new gold mining technology to boost south african miners efficiency

According to Gold Made Simple, a local drilling contractor has developed an alternate gold mining process, which increases the efficiency of current practices. The method, discovered in 1974, was never developed due to lack of funding.

South Africa still has one of the largest worldwide gold reserves, but the ore is at depth, which results in significant amounts of the bullion having to be locked up in shaft pillars and stability pillars, since blasting creates seismicity.

The company is prototyping a series of other mining projects such as reverse-circulation drilling, which involves threading a camera through the hole to locate and capture the environment. The data collected is then processed and used to produce a 3D model of the reef. The success rate of this process has been impressive as the resolution captured by the camera has been higher than was initially expected.

People Managers/CEOS are living in a world of MAKE BELIEVE . You can go down any mine in South Africa whether it be Gold or Platinum you will find unacceptable BASIC CONTROLSto ensure all the blasted rock is removed as the blasting process(Reef panels) advance.This process requires the installation of control barricades with advancing reef panels.This is not the case in most mines that I have visited.The blasted material called. SWEEPINGS is not removed immediately with the advancing panel,whereas the Manager now employs a CONTRACTOR( added cost) to remove the most VITAL aspect of the process. To ensure these gold/platinum sweepings are removed from the workings to mill it is required that the gold/platinum swepings are kept with the advancing reef panel of not more than 15metres,andi under the control of the MINER in charge.This to ensure that reef bearing material is not left behind in theFOOTWALL of the panel This just one of the aspects of inefficient mining problems in the industry,I can bring many more instances to the fore eg Inadequate training of/for miners/Managers come straight out of university with no practical experience etc etc

mining technology | mining news and views updated daily - mining news and in-depth feature articles on the latest mining company deals and projects covering trends in mineral exploration with up to date data on the most mined metal and mineral commodities

mining technology | mining news and views updated daily - mining news and in-depth feature articles on the latest mining company deals and projects covering trends in mineral exploration with up to date data on the most mined metal and mineral commodities

We aggregated thousands of records from GlobalData's proprietary jobs, deals, patents and company filings databases to identify the top companies in the area of artificial intelligence in the mining sector.

We aggregated thousands of records from GlobalData's proprietary jobs, deals, patents and company filings databases to identify the top companies in the area of artificial intelligence in the mining sector.

With Australia reportedly mulling a net-zero emissions target that could bring its climate goals in line with other countries while also having a major effect on the countrys mining industry, our staff writers each identify one policy they would enact to equip Australias mining sector for the challenges ahead.

With Australia reportedly mulling a net-zero emissions target that could bring its climate goals in line with other countries while also having a major effect on the countrys mining industry, our staff writers each identify one policy they would enact to equip Australias mining sector for the challenges ahead.

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Wearables are rapidly evolving into essential tools in the expanding the internet of things (IoT) landscape, driven by a combination of technological progress on one hand and creation of market demand on the other.

9 biggest chinese mining companies

9 biggest chinese mining companies

The growth of China's mining industry shows no sign of slowing down. Despite a slowing economy and the continuing trade war with the United States, the Chinese steel industry shows signs of being resilient. In 2020, China produced about half of the world's steel and imported more than 70% of the worlds seaborne iron ore.

The country also produced around 90% of the worlds rare earth metals in 2019. Minerals from the mining industry in China are used to make everything from iPhones to missiles, in addition to numerous other goods that the American consumer and the U.S. economy rely on.

Eight of these nine Chinese mining companies are included in PwC's 2020 list of the 40 largest mining companies in the world. The stocks of these companies trade on the Hong Kong Stock Exchange or the Shanghai Stock Exchange.

China Shenhua is an integrated energy company that operates primarily through its coal division. The company operates several coal mines and is involved in the production and transportation of coal and coal products.

Its revenue for fiscal year 2020, was233.263 billion RMB a3.6% decrease from the previous year. Its annual revenue for 2019 was241.871 billion RMBan8.4% increasefrom 2018. The company's net income for 2020 was43.984 billion RMB, an11.6% declinefrom 2019.

China Coal Energy Company Limited mines and processes coal products. It produces thermal coal and coking coal products and also conducts coal chemical production, coal mining equipment manufacturing, pit mouth power generation, and coal mine design businesses.

Zijin Mining Group is principally involved in gold mining and smelting, though the company also mines for copper, lead, zinc, silver, and iron products in smaller quantities. For FY 2020, the company's revenue was was 171.501 billion RMB, and its net income was 8.458 billion RMB.

China Northern Rare Earth Group, formerly known as the Inner Mongolia Baotou Steel Rare Group, is engaged in producing rare earth metals, oxides, and salts. China Northern Rare Earth Group has a market capitalization of $70.409 billion USD in May 2021.

Jiangxi Copper is one of China's largest copper producers. It manufactures, distributes copper products, and produces copper cathode and other copper products. Jiangxi Copper also operates minerals development, finance, investment, trade, logistics, and other businesses.

Shaanxi Coal and Chemical mines, processes, and sells coal products. It also produces long flame coal, caking coal, noncaking coal, gas coal, lump coal, washed coal, coal chemicals, and other products.

China Molybdenum is a mineral mining and exploration company. It mines for molybdenum, tungsten, niobium, cobalt, copper, and more. For the first quarter of 2020, the company's revenue was 22.38 billion RMB. Its revenue for 2019 was 68.68 billion RMB, and its net income was 1.766 billion RMB.

Shandong Gold Mining operates gold mining and production businesses. It provides gold exploration, processing, and outsourcing of gold smelting services. It also operates gold jewelry purification and non-ferrous metal production businesses.

Yanzhou Coal Mining Company Limited operates coal businesses. The company produces fine coal, blown coal, power coal, and coal chemical products. Yanzhou Coal Mining also operates power generation, railway transport, machinery manufacturing, and heating businesses.

mercury-free, small-scale artisanal gold mining in mozambique: utilization of magnets to isolate gold at clean tech mine - sciencedirect

mercury-free, small-scale artisanal gold mining in mozambique: utilization of magnets to isolate gold at clean tech mine - sciencedirect

Artisanal and small-scale gold mining accounts for a significant portion of the current global gold market. Many artisanal gold miners use mercury to amalgamate gold and separate it from undesired gangue minerals, because it is relatively inexpensive and readily available. Unfortunately, the inappropriate handling and use of mercury has created environmental and health concerns in artisanal mining camps throughout the world. While the vast majority of artisanal and small-scale gold mines in Mozambique use mercury amalgamation in the gold mining process, the privately owned Clean Tech Mine in the Manica Province has eliminated the use of mercury at their mine. Instead, gold is isolated by centrifugation and magnetic removal of gangue materials. Furthermore, the operation of this mine stands in contrast to other mines in the area due to the responsible business practices initiated by its owner to ensure worker safety. This report details the mining practices employed by Clean Tech Mine to eliminate mercury use throughout the mining process, increase worker safety, and provide the surrounding communities with an opportunity for sustainable employment.

solutions to pollution in gold mines,green mining machine sale to worldwide | prominer (shanghai) mining technology co.,ltd

solutions to pollution in gold mines,green mining machine sale to worldwide | prominer (shanghai) mining technology co.,ltd

According to the statistics of the United Nations Environment Programme, the outdated mercury alchemical method is still used in small gold mines in about 70 countries around the world.It is estimated that 35% of the mercury released into the air in the world comes from small gold mines.The health of 15 million miners, including 5 million women and children, is directly threatened.Everyone of us living on the earth will be affected.Indirect harm.

The principle of mercury alchemy is: miners who mine gold mines mix the ore dug underground or in riverbeds with mercury to form amalgams to extract gold.Then the amalgam is heated.When the amalgam is heated, the mercury element in it evaporates into a kind of toxic smoke, and the rest is gold.The most regrettable thing is that in Africa, the process of heating amalgam to extract gold is usually performed by women, on the grounds that women are more careful and more suitable for this work.However, mercury is extremely harmful to pregnant women.Mercury may have toxic and side effects on human nerves, digestive and immune systems, as well as lungs, kidneys, skin and eyes.It poses a threat to the development of fetuses and infants, and causes impaired IQ of children , Language development delay and other neurodevelopmental defects.Therefore, many countries have banned the use of mercury for alchemy.

Currently, the amount of mercury used in artisanal and small-scale gold mining is estimated at 1,400 tons per year, more than any other use of mercury.The artisanal and small-scale gold mining industry discharges an average of about 1,000 tons of inorganic mercury each year, of which about one-third is discharged into the air, and the rest is accumulated in gold mining waste (tailings) or into the soil or waterways.After some inorganic mercury enters the aquatic ecosystem, it is converted into organic methylmercury by microorganisms and accumulated in fish.

For many years, Prominer (Shanghai) has responded to the country's call for building green mines and has undertaken a number of green mines that integrate intelligence, digitization, automation and ecology, and become a model project for domestic green mines. It can not only minimize mine pollution, but also ensure controllable costs. In recent years, while basing itself on the domestic market, we has also become famous overseas with its advanced technology. Currently, it has carried out operations in more than 30 countries including Canada, Germany, Australia, Portugal, Fiji, Bolivia, Turkey, Brazil, and Indonesia. Dozens of mines have been tested, designed, and constructed. If you have "green mine design" needs, please feel free to contact us.

Prominer has been devoted to mineral processing industry for decades and specializes in mineral upgrading and deep processing. With expertise in the fields of mineral project development, mining, test study, engineering, technological processing.

graycliff partners acquires gold tech industries - mining stock education

graycliff partners acquires gold tech industries - mining stock education

NEW YORK(BUSINESS WIRE)Graycliff Partners LP announced today that it has completed the acquisition of Gold Tech Industries (GTI), a provider of metal finishing and plating services for the semiconductor and aerospace industries.

Based in Tempe, AZ, GTI provides precision gold, silver, chrome and nickel-plating for a global customer base. Gold plating is a key feature of metal components used in certain semi-cap equipment, allowing for uniform heating and reflectivity throughout a semiconductor chamber. GTI products have a direct effect on the silicon wafer and are critical to its overall yield and performance. The companys extensive knowledge and 30-year history allow delivery of these specialized, niche services at high levels of quality and reliability.

This is an exciting step in our companys history, said Dan Skinner, GTIs CEO and owner of the business since 1990. Graycliff has been a reasonable and reliable counterpart throughout this process, and we are confident they will be a trusted partner for our employees and customers as the company enters its next chapter. Graycliffs prior experience and success in the semiconductor and aerospace industries will allow the company to accelerate growth.

Having spent my entire career in the semi-cap industry, GTIs knowledge of metal-plating and ability to execute on time with high quality is unparalleled in the space, said Dan Rubin, Graycliff Operating Advisor. We look forward to working closely with the team to better serve our customers.

This is the first institutional capital for GTI and will allow it to accelerate its growth with current and new customers alike, said Duke Punhong, Graycliff Managing Partner. We have significant experience in the semi-cap industry and expect GTI to be the first of a number of acquisitions within the space for our current fund.

GTI is the third investment in Graycliffs fourth private equity fund, Graycliff Private Equity Partners IV LP. The current fund is a continuation of the firms strategy of making equity investments in lower middle market companies, with a focus on acquiring and/or partnering with founder and family-owned businesses in the manufacturing, business services, and value-added distribution sectors.

Graycliff Partners is an investment firm focused on making lower middle market investments, typically in manufacturing, business services and value-added distribution businesses. Through dedicated equity and credit funds, Graycliff provides capital for acquisitions, management buyouts, recapitalizations, growth and expansion. For more information about Graycliff Partners visit www.graycliffpartners.com.

gold mining: new tech tests its metal financial mail | new gold recovery

gold mining: new tech tests its metal financial mail | new gold recovery

A US entrepreneur who claims to have discovered a new, more efficient and environmentally friendly process to recover gold is looking for partners in South and East Africa. Anastasios Morfopoulos, who has established a company called New Gold Recovery and attracted New York-based hedge fund UniCore Group Capital as a 20% shareholder, has discovered certain nano-particles that demonstrated a natural affinity for gold and other precious metals. This technique, Morfopoulos says, can recover more than 90% of the gold in alluvial deposits. SA has very little alluvial gold, but Morfopoulos believes his technology, which has been independently verified by Bureau Veritas Group and Global Mineral Research, could also help to improve recoveries from gold in hard rock. Traditional gold extraction methods range from inefficient and potentially lethal methods, such as panning alluvial deposits or crushing hard rock and adding mercury to it, usually practised by artisans, to large-scale, more efficient crushing, flotation and carbon leaching methods involving cyanide salts, used by commercial mining companies. Three years ago, various publications, including Popular Scientist, described how Zhichang Liu, a researcher at Northwestern University in the US, discovered that alpha-cyclodextrin (sourced from cornstarch) showed great affinity with gold particles. Morfopouloss process does not use mercury, cyanide or cornstarch, he says. The process uses a collector that is produced from natural, nontoxic ingredients that attracts gold, silver and platinum but rejects other minerals. It acts like a green mercury. The collector has been tested on gold loads of up to 15,000g/t. Once loaded, the collector is replaced and shipped out, he says. We are aware of and sensitive to the matter of security and prefer not to disclose too much We have not applied for a patent exactly for this reason, preferring to take the Coca-Cola formula approach and keep the recipe secret. A local gold mining company, which asked not to be named, says it has reviewed the technology, but what works in a laboratory could be very difficult to replicate in a large-scale processing operation. Once the technology is proven on a plant scale (greater than 100,000t/month) we would probably be interested in investigating it further. Meanwhile, we have to produce gold from the infrastructure we have now. New Gold Recovery originally intended to license its technology to other primary producers, but it has now decided to do so while also mining a recently purchased deposit, Black Rock Canyon Mine in Nevada. UniCore senior partner Herve Ime says: We see this as a killer technology, rather like what Google is to the Internet.

Anastasios Morfopoulos, who has established a company called New Gold Recovery and attracted New York-based hedge fund UniCore Group Capital as a 20% shareholder, has discovered certain nano-particles that demonstrated a natural affinity for gold and other precious metals. This technique, Morfopoulos says, can recover more than 90% of the gold in alluvial deposits.

SA has very little alluvial gold, but Morfopoulos believes his technology, which has been independently verified by Bureau Veritas Group and Global Mineral Research, could also help to improve recoveries from gold in hard rock.

Traditional gold extraction methods range from inefficient and potentially lethal methods, such as panning alluvial deposits or crushing hard rock and adding mercury to it, usually practised by artisans, to large-scale, more efficient crushing, flotation and carbon leaching methods involving cyanide salts, used by commercial mining companies.

Three years ago, various publications, including Popular Scientist, described how Zhichang Liu, a researcher at Northwestern University in the US, discovered that alpha-cyclodextrin (sourced from cornstarch) showed great affinity with gold particles.

Morfopouloss process does not use mercury, cyanide or cornstarch, he says. The process uses a collector that is produced from natural, nontoxic ingredients that attracts gold, silver and platinum but rejects other minerals. It acts like a green mercury.

We are aware of and sensitive to the matter of security and prefer not to disclose too much We have not applied for a patent exactly for this reason, preferring to take the Coca-Cola formula approach and keep the recipe secret.

A local gold mining company, which asked not to be named, says it has reviewed the technology, but what works in a laboratory could be very difficult to replicate in a large-scale processing operation.

Once the technology is proven on a plant scale (greater than 100,000t/month) we would probably be interested in investigating it further. Meanwhile, we have to produce gold from the infrastructure we have now.

New Gold Recovery originally intended to license its technology to other primary producers, but it has now decided to do so while also mining a recently purchased deposit, Black Rock Canyon Mine in Nevada.

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