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Three kinds of shaped MIL-88A-Fe catalysts were successfully prepared.Shaped MIL-88A-Fe expose different ratio of (100) surface.Exposed (100) surfaces determined Fenton-like activity.The dissociated process of H2O2 over MIL-88A-Fe are disclosed.
Morphology of MIL-88A-Fe greatly affects their Fenton-like performance. In this work, rod-like, spindle-like and diamond-like MIL-88A-Fe was prepared by changing the ratio of solvents in solvothermal process. Their physicochemical properties are fully investigated by XRD, SEM, TEM, XPS, ESR, and DFT calculation, which confirmed that the exposed (100) ratio of MIL-88A-Fe determined its catalytic performance. The (100) surface of MIL-88A-Fe showed lower energy barrier for H2O2 dissociated into OH (dissociated energy 0.58eV), corresponding value is 0.8eV for (101) surface. The Fenton-like performance has the order of r-MIL-88A (TOF 5.0 h1) > s-MIL-88A (TOF 3.3 h1) > d-MIL-88A (TOF 2.5 h1), when r-MIL-88A used as catalyst, phenol could be removed 100% in 15min by the help of H2O2 at room conditions, its activity are better than that of reported Fe-based MOFs, such as MIL-88B-Fe, MIL-101-Fe, and MIL-53(Fe) etc. This finding probably provide a Fenton-like catalyst by choosing the suitable crystal phase of Fe-based metal organic framework.
Test results of energy optimized grinding of three different mineral materialsComparison of vertical roller mills with tumbling mills on the lab and pilot scaleLab scale tumbling mills arranged in the (energy) optimized comminution sequenceEnergy control by torque measurement, dispersity control by permeametryBased on energy expense for grinding only the tested vertical mills are more efficient.
The Institute of Mineral Processing at the Montanuniversitaet Leoben in cooperation with the company CEMTEC has developed a pilot scale, 200mm table diameter, vertical roller mill for energy controlled laboratory tests. The mill provides the technical options to vary process parameters like air-flow, mass flow, grinding force and classifier speed in a wide range and is equipped to analyze the internal circulating load. In order to address grinding efficiency (defined as the increase in mass specific surface vs. net specific energy input) the energy consumption of two pilot scale vertical roller mills (200mm and 670mm table diameter) was compared to that of a sequence of laboratory comminution equipment covering the same size range. The sequence consisting of a laboratory jaw crusher and three laboratory tumbling mills of differing grinding media was operated following the principles of energy optimized comminution according to the OCS-method. With respect to the grinding energy only all the results for marble, siderite and hematite ore show energy savings when using the vertical roller mill at optimized settings. The methods used are outlined including the special features of the equipment.
The Canon EOS R3 was teased in a 'development announcement' back in April, when the camera giant described it as a professional full-frame camera that sits in between the Canon EOS R5 and Canon EOS 1D X Mark III.
But since then, it's all gone a bit quiet on the EOS R3 front officially, at least. Fortunately, rumors from historically reliable sources have started to fill in some of the gaps, including its expected full release date.
Together, these will give it Sony A1-rivaling shooting speeds of 30fps when you use the electronic shutter, although we're waiting for more specific details on the conditions that'll be needed for the EOS R3 to hit these speeds (for example, lenses and file formats).
Intriguingly, the EOS R3 will also have a new Eye Control AF function. Like a similar feature we saw back in the 90s on Canon EOS 5 and EOS 3 film cameras, this promises to let you choose an autofocus point simply by looking at it in the viewfinder. It was a bit hit-and-miss back in the day, but we're looking forward to trying out the new incarnation on the EOS R3.
Exactly when we'll be able to do that, though, isn't clear. Canon hasn't yet given the camera an official release date, so while we may see a few in the hands of professional snappers at the Tokyo Olympics, the R3 likely won't reach our hands until later in the year. The latest rumors suggest a full launch in September.
Until then, rumors will no doubt fill in the big gaps in the Canon EOS R3's blueprint, so we've rounded up the most credible ones plus the camera's official specs and our thoughts on what it means for pro full-frame camera battle in this in-depth guide to Canon's exciting mirrorless camera.
This also fits the timescale we saw for the Canon EOS R5. That camera received a development announcement in February 2020, before becoming available to buy in July 2020. That was a five-month wait, if the EOS R3 follows a similar schedule then it should arrive in September (five months after its April development announcement).
That said, we have seen many delays for camera and lens launches this year due to semiconductor and component shortages, so it's certainly possible that September launch could be pushed back. Even if it is likely that we'll see a few Canon EOS R3's used in the wild during the Tokyo Olympics, which are due to start on July 23.
How much will the EOS R3 cost? Again, Canon hasn't yet given any official indication. What the camera giant has said, though, is that the Canon EOS R3 sits somewhere in between the Canon EOS 1D X Mark III and the Canon EOS R5, so we can make some educated guesses as to the price based on those two cameras.
Given that the EOS R3 in many ways combines the best of both cameras, and has a brand-new sensor, we'd expect it to be closer in price to the former of those two cameras. But we'll have to wait for the full announcement to know for sure.
Some recent rumors have started to color in Canon's basic line drawing, but let's start with the five big, confirmed acts. Firstly, the EOS R3 will have a new Canon-developed stacked BSI (backside-illuminated) CMOS sensor. This is interesting for a couple of reasons. It's been made by Canon, for a start, so should integrate nicely with the camera's Digic X processor.
But the big news is that this full-frame sensor will have a 'stacked' design, like the chip seen in the Sony A1, and the one Nikon has promised for its incoming sports flagship, the Nikon Z9. The benefits of stacked sensors are their speedy data read-out speeds, which generally means fast burst shooting and autofocus speeds.
Traditionally, sports cameras like the Canon EOS 1D X Mark III have been closer to the 20MP mark, because that allowed them to reach the necessary burst speeds, so it does seem a little on the high side given current pro sports cameras. But then again, the R3 will likely be a showcase of what's possible with the latest stacked sensors and processors.
Perhaps more interesting are the Canon EOS R3's autofocus powers. Canon has promised that the camera will have 'next-generation' Dual Pixel CMOS AF that can track your subjects' eyes, heads and bodies at high speeds.
Which brings us to another recent rumor. Both Canon Rumors and Canon Watch have speculated that this means the EOS R3 will have the long-awaited Quad Pixel AF system, which has been rumored for over two years.
This one's a little up in the air, as it depends on the interpretation of 'next-generation' Dual Pixel CMOS AF. It may be that Canon is simply holding back the announcement of Quad Pixel AF for a later EOS R3 announcement or the rumor sites have simply got it wrong.
Still, one other AF trick that Canon has said that is definitely coming is the addition of a new subject to the camera's AF tracking, which is "yet to be disclosed". So far, its high-end cameras can track humans, animals and birds so we're looking forward to seeing what's next.
Whatever that new subject-tracking feature is, it might just be overshadowed by the EOS R3's other autofocus trick: Eye Control Function. What is it? Well, back in the days of film cameras like the Canon EOS A2E (known as the EOS 5 outside the US) and Canon EOS 3, Canon had a feature called 'eye-controlled autofocus' that let you choose an AF point simply by looking at it in the viewfinder.
It was a highly impressive technology for the time, and Canon has promised a "new and improved" version of it for the EOS R3. The main benefit of the feature is that it's potentially quicker to nail your focus point than using buttons; and while the original incarnation of the tech was renowned for being a little hit-and-miss, we're excited to try out Canon's new Eye Control Function on the R3.
Aside from that new Canon-made sensor and those autofocus powers, the fourth big new feature announced for the EOS R3 is that it'll be able to shoot 30fps with full autofocus tracking and auto-exposure when you use the electronic shutter. That's an impressive headline feature that theoretically matches the Sony A1's top shooting speed, but it comes with a lot of caveats.
Firstly, Canon hasn't said whether or not this involves an image crop, or what kind of files will be supported at the top 30fps speeds on the Sony A1, for example, you can shoot compressed raw and JPEGS, but not uncompressed or lossless raw files. Also, burst shooting speeds are dependent on what lens you're shooting with, so it's not clear which lenses will support 30fps shooting.
That's it so far for official announcements on the EOS R3, but recent rumors have added a couple of other possible specs. Canon Watch has said that it'll be capable of 20fps burst shooting speeds with the mechanical shutter and 8K/30p raw video recording, although it doesn't say whether or not the latter will be internet or via an external recorder.
Canon Rumors has also reported that the EOS R3 will bring a "resolution trick", which is most likely referring to a 'pixel shift' function. This allows cameras to move their sensor in order to capture high-resolution photos that at least quadruple the native resolution of the sensor, and it's a feature that's been strangely lacking on cameras like the Canon EOS R5.
First, Canon is promising that the R3 will have the same level of dust- and water-resistance as its classic EOS-1 series DSLRs. These are renowned for being almost indestructible professional cameras, so that's good news for the R3's durability.
As you can see in the photos, the R3 also has an integrated grip, which isn't just there for comfortable handling it also houses a big battery that should keep the camera going far longer than most current mirrorless cameras. It might struggle to manage the 1D X Mark III's 2,850 images per charge, but we're expecting a huge improvement on the EOS R5's meagre 320 shots when using the EVF (or 490 shots if you're using the LCD).
As important as battery life for pro sports shooters is the viewfinder, but so far Canon hasn't provided any details about the EOS R3's EVF. We are expecting big things, though, given that Canon touted the "optical viewfinder experience" of the 1D X Mark III as one of the strengths the R3 will inherit from its DSLRs. So expect a viewfinder with a very high resolution and refresh rate, which will be up to the demands of pro sports shooters who can't afford to miss a millisecond of action.
Of course, for pro photographers the lenses are just as important as the camera body which is why Canon has also announced two pro telephoto lenses, plus the first true RF macro lens, alongside the Canon EOS R3.
You can read more about those in our separate story on the RF 100mm f/2.8L Macro, 400mm f/2.8L IS USM and 600mm f/6L IS USM lenses. But the short summary is that the new 'white lens' telephotos are effectively mirrorless ports of Canon's EF equivalents, only this time with slightly improved autofocus performance and potentially better image stabilization.
For those who can't quite manage their eye-watering price tags, though, the RF 100mm f/2.8L looks the more intriguing lens. It brings a minimum focusing distance of only 8.6cm and comes with a new Spherical Aberration (SA) control ring for softening different parts of your image and creative effects.
While the RF 400mm f/2.8L IS USM and 600mm f/6L IS USM will undoubtedly be perfect partners for the new Canon EOS R3, that new RF 100mm f/2.8L looks like it'd be at home with all members of the EOS R family, including the Canon EOS R5 and Canon EOS R6.
The Canon EOS R3 is something of a surprise announcement. Recently, the rumor mill has mainly been talking up the possibility of a Canon EOS R1 flagship so does the arrival of the R3 mean we now won't see an R1?
Not necessarily. From the specs we've seen so far, it feels like the Canon EOS R3 is more like a supercharged, pro-friendly version of the Canon EOS R6, rather than the high-megapixel, 8K-shooting flagship we're expecting the rumored R1 to be.
In this sense, the Canon EOS R3 is likely to be more of a rival to the Nikon Z9 than the Sony A1. And like Nikon's camera, it's something of a watershed moment that will see professional sports photographers move from the DSLR format to mirrorless.
Mark Wilson is the Cameras Editor for TechRadar at Future. He writes and oversees reviews of the latest camera gear on TechRadar and looks after all the photography tutorials. Mark was previously Digital Editor (Cameras) at Trusted Reviews, Acting editor on Stuff.tv, as well as Features editor and Reviews editor on Stuff magazine.
Jake carries his best dog off the mountain after a battle with a huge Mountain Lion; Mike flies to the end of the earth for the last round-up. Martha and Elli rescue a hunter stranded in sub-zero temperatures; and Josh exacts vengeance after wolves take out one of his bison.
The remaining participants fight to protect their food supplies as they face continued pressure. One survivalist's shelter poses a serious threat, while another's health takes a consequential hit.
Tom and Nancy create a masterpiece out of a raw wolf hide. Jake and his young dogs tangle with two mountain lion kittens. Eustace teacher his neighbors how to put food on the table the Mountain Men way. Mike goes full fur on Whale Island. And Josh gets caught in an ice jam on the Wind River.
There are those who believe that embedded in our most sacred religious texts, as well as in the design and location of ancient monuments, are secret messages--messages that may reveal the purpose behind our very existence. Could it be true? Strange and cryptic communications with unknown meaning have been discovered all across the globe throughout every known civilization. Might the key to unlocking the mysteries of the universe be found hidden in numerological, geometrical, and geological puzzles left for us to solve by extraterrestrial beings that came to Earth thousands of years ago? Are humans being tested? Have we learned enough to crack the codes necessary to decipher these messages? And if so, might our understanding of them allow us to finally be reunited with our celestial ancestors?
Ancient Astronaut theorists have suggested that many of the divine beings depicted in cultures throughout the world are not really divine--or mythological--but instead reflect extraterrestrial visitations that our ancestors did not understand. If true, what can account for all the different types of beings that are depicted, from anthropomorphic birds and reptiles, to gods with blue skin to multi-limbed humanoids? Might there have been numerous alien species inhabiting Earth? Could the accounts given by modern day alien abductees be evidence that these otherworldly entities continue to visit Earth to this day? And is it possible that they all have a common ancestor? In 1928, archaeologist Julio Tello discovered the Paracas skulls of Peru--elongated heads with cranial volumes at least 25% larger than the largest known human skulls. Some believe that these remains are of extraterrestrial origin.
Over 10,000 crop circles have been reported worldwide, appearing in 50 different countries, and nearly every continent on Earth. These strange designs pressed into crop fields range from simple circles to elaborate pictograms thousand of feet long. The phenomenon has been associated with scientific anomalies, strange lights, and even UFO activity. But critics say that they are all part of an elaborate hoax. But are they? Crop circles have been making modern headlines since the 1960's, but their history can be traced back hundreds--if not thousands of years. The designs themselves often contain encrypted messages and complex mathematical, geometric, and astronomical equations that perplex our top mathematicians and scientists. Ancient Astronaut Theorist, Giorgio Tsoukalos travels to England to meet with researchers and scientists to investigate the phenomenon both on the ground and in the lab to find out what we haven't been told.
Ancient Astronaut theorists suggest that evidence of extraterrestrial visitation exists in every corner of the Earth, but some say the most compelling can be found in one of the world's least accessible places--China. China is the cradle to one of mankind's earliest and most influential civilizations. The advents of gunpowder, paper, the compass, and countless other major innovations form the technological base on which our modern societies function. But historically, China has also had a policy of isolationism. From the Great Wall erected thousands of years ago to the "Great Firewall" of today, China has long prevented both people and information from entering or exiting its domain. While China has long been a secretive and isolationist country, new evidence suggest that aliens walked among us in the ancient past, and may have been with us all the way up to today... hiding among us.
The U.S. military has long denied that the infamous 1947 Roswell crash was anything other than a weather balloon, but FBI files released in 2011 include a memo to J. Edgar Hoover regarding the recovery of not one, but three "flying saucers." Could the U.S. government really have extraterrestrial crafts in their possession? Ancient Astronaut theorists say yes, and claim that Roswell is just the tip of the iceberg. Over a dozen other UFO crashes were reported all across the world around the same time as Roswell, and it is rumored that the wreckage from these incidents was retrieved and hidden away at secret military bases like Area 51 in Nevada, Kapustin Yar in Russia, Pine Gap in Australia, Rudloe Manor in England, and even in the remote hills of China. But if true, what happened to these alien spaceships?
Thousands of people from every part of the world have reported being abducted by aliens, including even a world leader--President Kirsan Ilyumzhinov of the Russian Republic of Kalmykia, who announced in 2007 that he had been taken aboard an extraterrestrial ship. Could the alien abduction phenomenon be true? But if so, why are people being taken? And perhaps more importantly--why are they being returned? Stories of human abduction by otherworldly entities can be found in mythologies dating back thousands of years, and the abductees often return to Earth with new knowledge or instructions for mankind. In modern times, researchers of alleged alien abductions have found extraterrestrial objects implanted just under the skin, strange patterns in genetic mutations, and knowledge of entire alien languages from abductees. Is it possible that extraterrestrials are secretly manipulating mankind through these abduction events?
In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster. Could new scientific findings reveal that humankind's true origins lie not on Earth... but 400 light years away'
The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington. Is it possible that extraterrestrials have been monitoring--and even influencing--America's presidents'
Mysterious places can be found around the Earth, and, inexplicably, UFOs are often sited near these mystical areas. Planes and ships unaccountably disappear in the infamous Bermuda Triangle. Strange magnetic anomalies in Mexico's Zone of Silence have not only drawn missiles off their course, but seem to pull meteorites out of the sky. An ancient doorway carved into a sheer rock wall in Peru's Puerta de Hayu Marka is said to be a portal to other worlds. Markawasi's plateau is filled with strange rock formations allegedly left behind by an ancient advanced civilization. What connections do these and other "hot spots" share? Is it possible that ancient extraterrestrials also knew about these mysterious places?
If extraterrestrials influenced human history, can evidence of their existence be found in hidden tunnels and caverns around the world? Could a cave in Ecuador contain metallic books inscribed with secrets of alien technology? Was an ancient underground city in Turkey built with alien help... or as a refuge from an alien attack? Rumors of the U.S. military working alongside aliens in a secret base inside a mesa in New Mexico continue to swirl, Native American legends mention strange inner-Earth beings, and recent archaeological discoveries in the Yucatan may point to an extraterrestrial reality behind.
Super-heated death rays... High-tech rockets... Powerful sonic weapons... Are these examples of modern day science or could these technologies have originated thousands of years ago? Is it possible that early man possessed scientific knowledge far beyond that of our own century? Ancient texts, folklore and art suggest humans witnessed disc-shaped flying machines and fire-spewing chariots. Could these be accounts of flying saucers and rocket ships? And if so, was advanced technology left here by visitors from the stars? Did mankind's quest to unlock the secrets of levitation, anti-gravity and laser technology merely spring from our imaginations or did these ideas come from otherworldly beings?
Biblical texts and ancient lore frequently describe winged creatures carrying messages from the heavens. But are angels merely the product of mankind's imagination--or do they really exist? If so, where do they come from? Ancient astronaut theorists suggest that the Bible's Old Testament reads like a handbook on extraterrestrial visitations. Accounts of angels can also be found in Islamic and Indian texts. Infinite stories around the globe describe unearthly guardians, entrusted to both observe and protect as well as tales of powerful warriors bringing about everything from plague to peace. Are angels really supernatural beings from heaven, or something more? If so, might angels really be travelers--visiting Earth from distant planets?
If ancient aliens visited Earth, can evidence of their existence be found in the mysterious structures that still stand throughout the world? Inexplicably, megalithic structures found on different continents are strikingly similar, and the cutting and moving of the massive stones used to build these magnificent feats would be a struggle for modern day machinery, let alone ancient man. Ancient astronaut theorists suggest that the standing stones in Carnac, France were used as an ancient GPS system for ancient flying machines. The recently discovered Gobekli Tepe in Turkey, which has been dated back 12,000 years, has finely chiseled pillars that experts describe as a Noah's Ark in stone. Is it possible that extraterrestrials assisted primitive man in constructing these unexplained structures? If so, what was the purpose of these grand projects?
If ancient aliens visited Earth, were they responsible for catastrophes, wars and other deadly disasters to control the fate of the human race? The story of the Great Flood sent by deities to destroy civilizations exists in many prehistoric cultures. There are ancient descriptions of extraterrestrial battles that caused wide-scale destruction, and even reports of UFOs lurking in the shadows of recent natural disasters. The Book of Revelations and the Dead Sea Scrolls describe a future apocalyptic battle between good and evil that will destroy our world. Are these ancient texts proof that aliens are hostile and planning a violent return? Or might they be our saviors, ensuring our survival as a species during times of devastation?
Ancient Astronaut theorists believe aliens have been visiting earth for thousands of years. If so, might we find evidence of this even in the stories of America's Old West? In Aurora, Texas, the local cemetery claims to hold the body of an alien whose ship crashed there in 1897. In Utah, petroglyphs depict strange beings wearing what look like space suits. In southern California, 19th century ranchers reported seeing an otherworldly creature emerge from Elizabeth Lake. And even in Tombstone, Arizona, the home of Wyatt Earp and the site of the gunfight at the O.K. Corral, cowboys claimed to have shot at a giant, metallic bird Are these simply campfire tales, or did the cowboys and native people of America's Wild West actually come in contact with alien beings from another--much more distant--frontier?
Could gold be the ultimate link between humans and aliens? A church in southern France is said to hold the key to alchemy--and a gateway to another part of the universe. Locals in Cusco, Peru believe UFO sightings are connected to lost gold at the bottom of Lake Puray. And some believe underneath the Great Sphinx of Giza lies an entire library left behind by extraterrestrials--a library stored on gold.
For thousands of years, there have been places around the world considered dangerous to humans. Might these locations hold the key to an otherworldly connection? At Australia's Black Mountains, local myths speak of ancient serpent gods and hikers disappearing. Every year hundreds are drawn to a dark forest at the base of Mount Fuji in Japan--to commit suicide. What causes these places to be evil? Could there be evidence that past extraterrestrial activity lead to the negative energy in Earth's evil places?
Gravity Recovery and Leaching of Gold & Silver CIL Stripping & Refinery: This complete hydrometallurgical process plant is to recover silver and/or gold metals from oxide or very low sulphide ore deposits. Provided here are all major equipment for a plant arranged to recover dissolved precious metals using the Carbon-in-Leach process. CIL with activated carbon is best suited for ores with no or some levels of preg-robbing carbonaceous material. The initial gravity circuit will extract any coarse, slow dissolving GRG gold and silver. The simple CIL technology deals best with low grade gold and/or silver deposits.
This simple metallurgical concentrator includes single stage crushing, conveying, primary grinding, spiral classification, gravity concentration, slurry pumping, cyanide leaching tanks, loaded carbon stripping and regeneration as well as refinery.
This is a standard process plant which includes only the major components of the complete metallurgical flowsheet. A detailed engineering study is required to identify unforeseen omissions that may be required to design the optimum plant.
Process development testwork and detailed engineering are essential services 911Metallurgy Corp. offers separately. The equipment package described herein does not include any permitting, infrastructure, foundation, electrical, assembly, reagents/supplies or commissioning. These are all additional paid-for services we do offer if you need them.