May 17, 2020

Solar Plane: Making Clean Tech Sexy, Adventurous

solar plane
New York City solar
Admin
5 min
Solar Powered Plane
By: Seth Borenstein (ap) This revolutionary solar-powered plane is about to end a slow and symbolic journey across America by quietly buzzing the St...

By: Seth Borenstein (ap)

 

This revolutionary solar-powered plane is about to end a slow and symbolic journey across America by quietly buzzing the Statue of Liberty and landing in a city whose buildings often obscure the power-giving sun. The plane's top speed of 45 mph is so pokey, it would earn honks on the New Jersey Turnpike.

The plane is called Solar Impulse. And it leaves from Washington on a commuter-like hop planned for Saturday, depending on the weather. It will take hours for the journey and offers none of the most basic comforts of flying.

But that's OK. The aircraft's creators say its purpose really has little to do with flying.

They view themselves as green pioneers — promoting lighter materials, solar-powered batteries, and conservation as sexy and adventurous. Theirs is the high-flying equivalent of the Tesla electric sports car. They want people to feel a thrill while saving the planet. Think Charles Lindbergh meets Rachel Carson.

And if there's one person who knows about adventure and what it means to Earth, it's Bertrand Piccard.

He's one of the two pilots who take turns flying Solar Impulse. His grandfather was the first man to see the curve of the Earth as a pioneering high-altitude balloon flier more than 80 years ago. His father more than half a century ago first took a submarine to the deepest and most inaccessible ocean trench on Earth.

And now in the 21st Century outside the Smithsonian's Air and Space Museum annex not too far from a retired space shuttle, Piccard says there's no truly new place on Earth for explorers to pioneer. At 55, he's tried.

He already was the first person to fly around the world non-stop in a balloon, but that wasn't really enough. So Piccard found a way to explore by looking inward and acting globally.

"It's an exploration of new ways of thinking," said Piccard, who is also a psychiatrist. "It's important to understand that pioneering is not only what you do. It's how you think. It's a state of mind more than action."

For him, there was no better cause than clean technology.

"After a conquest of the planet, the 21st Century should be about improving the quality of life," Piccard said. And the lightweight beanpole that's called Solar Impulse "is something spectacular in order to capture the attention of the people. If you make a solar bicycle to drive, nobody would care. If you make a solar plane, everybody cares. Everybody wants to see it.'"

Europe saw it first with a test flight from Switzerland and Spain to Morocco last year. This year's U.S. flight is another trial run that's really preparation for a 2015 around-the-world trip with an upgraded version of the plane. Solar Impulse has been to San Francisco, Phoenix, Dallas, St. Louis, Cincinnati and Washington. All that's left is New York's JFK Airport and Piccard talked about having to wait his turn to land with all the big jets.

"We're flying the most extraordinary airplane in the world," Piccard said.

Although it's promoted as solar-powered, what really pushes the envelope with this plane is its miserly energy efficiency, said Solar Impulse CEO Andre Borschberg, the plane's other pilot.

Parts of its wings are three times lighter than paper. Its one-person cockpit is beyond tiny. Borschberg lowers himself gingerly into it for a television camera, grimaces, and practically wears the plane it is so snug on him.

Most of the 11,000 solar cells are on the super-long wings that seem to stretch as far as a jumbo jet's. It weighs about the size of a small car, and soars at 30,000 feet with what is essentially the power of a small motorized scooter. When it landed at Dulles International Airport in suburban Washington after midnight on June 15, its wings were lit with 16 LED lights that used less power than two 100-watt bulbs.

"We can use much less energy than we use today without the sacrifice," Borschberg said. "And that's really important."

People won't sacrifice to save energy or the planet, but if they are smart they don't have to, Borschberg said. That's why he and Piccard pointedly talk about "clean technologies" not "green technologies." They think "green" has the image of sacrifice.

The only sacrifice with the plane is staying up in the air alone for 20 hours in such a small space.

And even then, the two pilots don't call it a sacrifice. Borschberg said after a while it feels homey and enveloping and it's hard to get out of the cocoon. Sitting for eight hours in an economy class seat on a commercial airplane is cramped; doing what you love by sitting three times longer in this plane isn't, Piccard added.

The flights are long because here's another thing about Solar Impulse: It's slow. Its cruising speed of just under 45 mph would get them honked at on an highway.

So that has meant a lot of 4 a.m. take-offs in the dark and landings well after midnight. But Borschberg, who will pilot the last leg from Washington to New York, is hoping for a daylight approach to New York City so he can get a photo opportunity with the Statue of Liberty.

Borschberg and Piccard both say this is not about clean-energy planes for the future. What they're doing is more likely to improve energy efficiency on the ground, in cars and homes, agrees U.S. Energy Secretary Ernest Moniz who met with the pair to talk up future energy a couple days after they landed at Dulles.

Still, questions of practicality come up.

"It's clearly a stunt," said John Reilly, co-director of MIT's Joint Program on the Science and Policy of Global Change. "And it's clearly an attention-grabbing stunt. The idea that you could fly an airplane powered by the sun is kind of hard to believe. So doing it is an impressive stunt, I suppose."

But these types of gimmicks do pay off at times, Reilly said.

It will pay off more than promoting solar and other renewable energy technologies as economic stimulus, which is what happened four years ago, said University of Colorado science policy professor Roger Pielke Jr. He compared it to giant prizes that encourage private companies to go into space or build robot-driven cars, which are proving successful.

"I don't think it's just a stunt," Pielke said. "The idea is that you're pushing boundaries and you're putting on shows for people and achieving milestones."

This, Pielke said, is "an essential part of technological innovation. It gives people an opportunity to attempt what previously was thought of as impossible."

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Oct 19, 2020

Itronics successfully tests manganese recovery process

cleantech
manganese
USA
Scott Birch
3 min
Nevada firm aims to become the primary manganese producer in the United States
Nevada firm aims to become the primary manganese producer in the United States...

Itronics - a Nevada-based emerging cleantech materials growth company that manufacturers fertilisers and produces silver - has successfully tested two proprietary processes that recover manganese, with one process recovering manganese, potassium and zinc from paste produced by processing non-rechargeable alkaline batteries. The second recovers manganese via the company’s Rock Kleen Technology.

Manganese, one of the four most important industrial metals and widely used by the steel industry, has been designated by the US Federal Government as a "critical mineral." It is a major component of non-rechargeable alkaline batteries, one of the largest battery categories sold globally.

The use of manganese in EV batteries is increasing as EV battery technology is shifting to use of more nickel and manganese in battery formulations. But according to the US Department of Interior, there is no mine production of manganese in the United States. As such, Itronics is using its Rock Kleen Technology to test metal recoverability from mine tailings obtained from a former silver mine in western Nevada that has a high manganese content. 

In a statement, Itronics says that its Rock Kleen process recovers silver, manganese, zinc, copper, lead and nickel. The company says that it has calculated – based on laboratory test results – that if a Rock Kleen tailings process is put into commercial production, the former mine site would become the only primary manganese producer in the United States.

Itronics adds that it has also tested non-rechargeable alkaline battery paste recovered by a large domestic battery recycling company to determine if it could use one of its hydrometallurgical processes to solubilize the manganese, potassium, and zinc contained in the paste. This testing was successful, and Itronics was able to produce material useable in two of its fertilisers, it says.

"We believe that the chemistry of the two recovery processes would lend itself to electrochemical recovery of the manganese, zinc, and other metals. At this time electrochemical recovery has been tested for zinc and copper,” says Dr John Whitney, Itronics president. 

“Itronics has been reviewing procedures for electrochemical recovery of manganese and plans to move this technology forward when it is appropriate to do so and has acquired electro-winning equipment needed to do that.

"Because of the two described proprietary technologies, Itronics is positioned to become a domestic manganese producer on a large scale to satisfy domestic demand. The actual manganese products have not yet been defined, except for use in the Company's GOLD'n GRO Multi-Nutrient Fertilisers. However, the Company believes that it will be able to produce chemical manganese products as well as electrochemical products," he adds.

Itronics’ research and development plant is located in Reno, about 40 miles west of the Tesla giga-factory. Its planned cleantech materials campus, which will be located approximately 40 miles south of the Tesla factory, would be the location where the manganese products would be produced.

Panasonic is operating one of the world's largest EV battery factories at the Tesla location. However, Tesla and other companies have announced that EV battery technology is shifting to use of nickel-manganese batteries. Itronics is positioned and located to become a Nevada-0based supplier of manganese products for battery manufacturing as its manganese recovery technologies are advanced, the company states.

A long-term objective for Itronics is to become a leading producer of high purity metals, including the U.S. critical metals manganese and tin, using the Company's breakthrough hydrometallurgy, pyrometallurgy, and electrochemical technologies. ‘Additionally, Itronics is strategically positioned with its portfolio of "Zero Waste Energy Saving Technologies" to help solve the recently declared emergency need for domestic production of Critical Minerals from materials located at mine sites,’ the statement continues.

The Company's growth forecast centers upon its 10-year business plan designed to integrate its Zero Waste Energy Saving Technologies and to grow annual sales from $2 million in 2019, to $113 million in 2025.

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