rare earth

The whole-phase grade has been used to define ore bodies of a weathering-crust-type rare-earth deposit and to calculate its reserves.

The company is often lumped in with other "rare earth" miners, which supply hard-to-find metals and elements used in electronics.

He said he hopes that other countries can share the burden of rare-earth development.

Bauer said the department's plan will look at short-term ways to increase rare earth metal production over the next five years and longer.

The main bottleneck, they argue, could be the production of rare earth metals such as neodymium, which is often used in making magnets.

Added customs inspections don't appear to target rare earth, though such shipments may have been caught up in the wider slowdown.

The ministry said the strategy is intended to 'increase rare-earth production concentration and cut the number of export enterprises. '

Among the stocks I'd bought was Molycorp, the only U. S. company in possession of a genuine rare earth mine.

Rare earth minerals have been a thorny trade topic for some time, and China has previously promised not to cut supplies drastically.

The results show that rare earth sealing for anodized film is comparable to that of chromate sealing.

China is trying to make itself magnetic to industrial consumers of rare-earth elements, and it may attract a key customer.

China currently supplies at least 95 percent of the world's rare earth elements and up to 99 percent of the heavy varieties.

The invention relates to sulfonic acid rare earth catalyst used for preparing polyisoprene and preparation method and application thereof.

Despite their name, rare earth elements are not actually all that rare, but China has a near-monopoly on mining the elements.

"GRED has two or three mining rights, through which it can access local rare-earth resources, " he said.

With a high refractive index and low chromatic dispersion, the rare earth ions mixed borate glasses have been widely used in many fields.

'In the long-term development of rare-earth products, the next few years will just be a blip, ' Scissors writes.

Function: Used for ceramic glaze, pigments for Pr yellow , fiber production and materials of rare earth permanent magnet alloy.

These changes can be explained in terms of the decrease in average diameter of rare-earth ions and the model of spin clusters.

Separately, Toyota Motor said it had set up a task force to handle rare earth procurements.

The company handles the domestic and international trade of ferrous metals, mineral products rare earth products and cable materials.

But Mr Zhu did not answer a reporter's question about when normal exports of rare earth minerals would resume.

The rare earth elements can be widely used in iron and steel, energy, aerospace, textile and pharmaceutical sectors, especially agriculture.

The MCR Series cylinder consists of a piston and a carriage, which are coupled together using rare earth magnets.

Yin Jianhua, rare earth analyst at Antaike, says: "Over the next five years China will probably continue reducing exports. "

Other elements (e. g. , rare earth elements and heavy metals) seem to play assistant roles for the water-bloom occurrence and development.

The invention relates to a rare earth coordination crosslinking rubber and a preparation method thereof.

In many enterprises in rare earth separation, low value of the element is not one to be abandoned, as at lost, cause pollution and waste.

Until now, the quotas mostly covered alloys and oxides with a rare earth content of at least 50 percent.

Dudley Kingsnorth, a prominent rare earth mining consultant in Perth, Australia, said he agreed that a dysprosium shortage was likely.

" Furthermore, in the light of this result, China should ensure free and fair access to rare earth supplies, " he added.

Lead as impurity in RIG (rare earth iron garnet) Faraday rotators used for fibre optic communications systems.

The effects of rare earth elements on the heat resistant properties of magnesium alloy have been primarily discussed.

Methods: Conventional chemical methods and ICP-MS were used to determine contents of nutrients and rare-earth elements.

Some countries with rare earth metals no longer mine them -- including the United States. One reason is the low-cost imports from China.

Last week, several U. S. senators said Chinese miners should be barred from investing in the U. S. until rare-earth supplies are guaranteed.

Neodymium. Yttrium. Dysprosium. You can be forgiven for not knowing the names of these rare earth metals.

There was no exceptional effect of rare earth on the foaming process.

This paper describes the design concept of a new robot based on the direct- drive method using rare -earth DC torque motor .

China has about 30% of the world's rare-earth reserves, but accounts for more than 90% of global rare-earth production, he said.

The results are in agreement with the standard value when determining the total content of rare earth elements in standard ore.

The first step in the quest is to clean up the small and inefficient companies in the steel, auto and rare-earth-mining industries, he says.

In recent weeks, Smith said he has heard from some Japan-based buyers of difficulty importing rare earth.

During a visit to Europe last autumn, he said that little happened on rare earth policy without him.

'The Japanese government hasn't been informed' of any Chinese ban on rare-earth materials, a Japanese Foreign Ministry official said.

Still China will have the upper hand in the global rare earth market for a while yet.

Participants are considered "existing trade regulations obsolete, unable to cope with China's monopoly of Rare Earth. "

Few people had ever heard of the natural elements known as rare earth metals before a recent dispute between China and Japan.

But the embargo on rare earth exports to Japan was an even more blatant violation of international trade law.

China has cornered the market for rare-earth minerals and is clearly not afraid to use that position as a diplomatic bargaining chip.

The addition of a small number of rare earth element-La increased the composite conductivity and the hardness.

"China will continue to provide rare earth to the rest of the world, " the ministry of commerce said in a statement faxed to CNN.

why are the rare earth elements so useful for classifying igneous rocks and for determining their chemical evolution?

We hold that the rare earth ingredient amount is the key factor to the quality of the alloy and its application prospect.

Rare earth oxide transparent ceramics have been paid much attention for excellent physical properties and superior optical characteristics.

To the extent that China cuts back increasingly on its rare earth exports, it will be in a position to pick and choose its trading partners.

Deposition inversion and pulverization pyrolysis are the better preparation methods on the study of rare earth oxide ultra micro powder.

This class of materials is sold today, but delivers half or less of the power of the best rare-earth-based magnets.

China tried to position itself instead as a reliable supplier, partly to discourage other nations from digging their own rare earth mines.

Basically, thermal stabilization of quadruple rare earth thermal stabilizers was better than that of ternary.

With a huge buzz gathering around global trade in rare earth elements, the Periodic Tablehas perhaps never garnered such interest.

Jiangxi Longyi Heavy Rare-earth Material CO. , Ltd is a high-tech enterprise and a innovation-based pilot enterprise in Jiangxi Province.

A series of rare earth solid superacid were prepared and used for synthesizing dimethyl fumarate(DMF).

But Shigeo Nakamura knows what he is seeing: no rare earth has come into his company from his Chinese suppliers.

Lower oxidation of powder and smaller powder particle size are effective for improving the performance of a rare-earth magnet.

Other compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals.

MLR is now directly in charge of examining and approving exploration and mining rights for tungsten and rare earth minerals.

Despite this, these rare earth ions of Pharmacology and Toxicology in the role is still without any definite conclusion.

S. has lost the necessary rare earth material refining capacity, and rebuilding the supply chain may take up to 15 rs.

Yao Jian: I have noticed that it was reported yesterday that the State Council had an executive meeting on rare earth policies.

Some countries with rare earth metals no longer mine them -- including the United States.

Nakamura said his company has a year of rare earth stockpile.

This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method.

Besides the microdots, each batch also contains a unique combination of up to 30 compounds of rare-earth metals.

Across China, rare earth mines have scarred valleys by stripping topsoil and pumping thousands of gallons of acid into streambeds.

Chinese producers cut prices of rare-earth minerals in the 1990s, causing many mines in other parts of the world to stop production.

a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite.

A recent crackdown by Beijing on rare earth mines and restrictions on exports have caused chaos in some of these markets.

Using conventional glass making techniques, high content rare earth borosilicate glasses can be prepared.

These measures have boosted rare-earth prices and made export quotas much more valuable.

The method in the invention can accurately measure the rare earth magnesium alloy new phase formation temperature range and is practical.

Mr. Ohata said he had pressed the Chinese minister to normalize rare-earth shipments. Mr.

The magnetic circuit optimization work is carried out for rare-earth transducer using giant magnetostrictive material.

China's control of the global rare-earth industry is surging toward the top of the global policy agenda.

Rare earth minerals are a grouping of 17 chemically similar elements that are usually found together in ore and are refined and split apart.

It also said it has secured final permits to begin construction of plants that will process the mined rare- earth oxides .

While cerium oxide is a rare Earth element, it is one of the more common ones. Its abundance has been compared to copper.

An executive at a Japanese importer of rare-earth elements said his company has seen no disruption in its imports from China.

The application of Rare earth elements in cemented carbides has been one of the national major projects.

They also want China to open its services market to foreign firms and to curb export restrictions on things like rare earth minerals.

You can be forgiven for not knowing the names of these rare earth metals.

This paper described the luminescence mechanism of rare earth luminescence polymer, mainly summarized its several synthetic strategies.

the catalyst is composed of transition metal oxide and rare earth oxide, so the cost of the catalyst is low.

This invention belongs to rare earth catalyzer for preparing polyisoprene, and its preparation method.

In the paper, sodium nitrate was taken to be an oxidant in the process of roasting rich cerium rare earth carbonate mixture.

The above extractant scarcely extracted rare earth but existence of rare earth in aqueous solution contributed to extracting Fe and Pb.

The results show that: 1. With the addition of rare earth-chitosan chelate increased, the rate of egg production raise gradually.

The research on rare-earth doped luminescent materials comes to a new and active period, as series of high technology developed.

The cost of the alloy which does not contain rare-earth elements is low.

With government support, cheap labor, and lax or nonexistent environmental regulations, its rare earth industries undercut all competitors.

Precipitated carbide can be become sphere shape and increased its dispersion in surfacing by adding Y-base rare earth alloy.

The central government has indicated that it wants large companies to lead the consolidation of the country's rare-earth sector.

One target: neodymium, a rare-earth essential for magnets used in everything from microphones to wind turbines.

The drive to cut pollution and improve safety in mines has also pushed higher the cost of coal, lead, tin and rare earth metals.

Rare earth ACSR with the optimized rare earth processing has better electric, corrosion-resistant, fatigue resistant performance.

The rare earth luminous coating produced by the laboratory has performance outstanding, non-toxic, small smell and such advantages.

"This situation is obviously not sustainable, " he noted, "for China's rare earth industry and for the world's high-tech industry. "

This paper focuses on the tentative study of complexes of rare earth amino acid chelates, a new type of feed additive.

In this paper, the performances of rare earth stearate used as a non-toxic heat stabilizer for polyvinyl chloride was summarized.

Of course, Beijing may react harshly to some of these measures and threaten a renewed embargo on the export of rare earth metals.

Take rare-earth elements -- minerals and oxides essential to the manufacture of many technologies.

A lobbyist in Washington de-scribed a "flurry of activity" recently as more congressmen tried to become involved in rare-earth bills.

Focus on Chinese policy has intensified in recent weeks, with Beijing signaling it may further reduce rare-earth exports next year.

"Even in the best scenario of supply, these [rare earth-based] magnets are very expensive, " Mr. Crane said.

Rare earth miner Molycorp U. S. companies have begun to prepare to re-mining in open pit of California desert.

In addition, The U. S. Department of Defense is completing a study to identify potential national security risks of rare-earth dependency.

The characteristics, stabilizing mechanism and application prospects of rare earth heat stabilizers in PVC plastics are reviewed in detail.

Application of the rare earth in rubber is reviewed, and its research progress is described.

On Wednesday, she expressed concerns Beijing might use its monopoly over rare-earth minerals as a political weapon.

Despite prior disagreements over climate change, China offers revolutionary green technologies and rare earth minerals.

Today we continue our report on the group of chemical elements known as rare earth metals.

The rare earth compound powder characterization system comprises properties of crystal, surface, particle, powder and usage.

Rhodia says it "has not experienced any issue" with rare earth shipments.

The moves could be further incentive for companies outside China to develop alternative rare-earth mining operations.

To protect the domestic resources and environment, China commenced tightening rare-earth export volume substantially in recent years.

Increased data has shown that the application of rare earth elements has splendid prospects in medicinal plant cell and tissue culture.

The applications of time-resolved, window and derivative techniques in fluorimetric analysis of rare earth elements have been studied.

The product uses advanced technology formula, the nutrients required for crop growth and rare earth elements, microbial compound formed.

Because of our rare earth magnet's powerful pull, meteorites actually jump right to it!

If you do not have one, we offer for sale the same powerful rare earth magnets used in our television series Meteorite Men.

The developments and present situation of magneto-optical materials, especially about rare earth (RE) iron garnets , were reviewed.

Therefore, the amount of the rare earth ions should be paid the attention when they are used in the agriculture and medicine.

Researchers collected rocks and measured minute isotopic variations in rare earth elements called neodymium and samarium.

SmCo magnet is a high performance , low temperature coefficient permanent magnet made of samarium and cobalt and other rare-earth elements.

Rare earth has been widely used in metallurgy and material fields for its special physical chemistry properties.

It uses a single stator, rare-earth neodymium iron boron permanent magnet in a cast aluminum casing with stainless steel fittings.

All the data suggest that the rare earth ions play a unique role in the structure of these glasses.

The effects of the different rare earth in catalyst on catalytic activity and molecular weight of copolymer were studied.

Proponents of the Rare Earth hypothesis say that a long chain of unlikely events led to the emergence of complex life here.

China has imposed export quotas on rare earth elements for three years - to boost its own high-tech industries.

But rare-earth mining was a stodgy industry in those days, selling mostly to petroleum producers.

They were necessary, Chinese leaders say, to sustain rare-earth development and deal with environmental damage caused by mining.

Many rare-earth minerals aren't actually rare, and China doesn't have a monopoly on deposits of any particular rare-earth elements.

European companies have become increasingly concerned this year over China's domination of the rare-earth market.

The results show that a rare-earth concentrate with a grade of 52% can be obtained by one roughing and two cleanings.

refined rare-earth magnetic motor type, small size, large torque, double insulated device, UL specifications for design, safety.

The tests results also showed that rare earth oxides doped molybdenum alloys have lower ductility to brittle transition temperature.

The catalytic activity of rare earth chlorides for esterification reaction between citric acid and n butyl alcohol was investigated.

The Chinese government may eventually be able to regulate the large rare earth mining industry around Baotou.

Rare earth has certain potential of antitumor, which inhibits the growth of tumor as well as killing the tumor cells.

a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime.

The fume reaction chamber has infrared combuster, rate earth catalytic reaction layer and rare earth catalytic purifying layer.

That reflects action by China, which controls 97 per cent of rare earth supplies, to slash exports to meet its own internal needs.

and calcining the prepared preburning powder to prepare the rare-earth cerium ion doped yttrium aluminum garnet fluorescent powder.

Rare earth compounds can be used as PVC thermal stabilizers. Rare earth stearates are important component of rare earth stabilizers.

Adding a small amount of rare-earth is favorable for forming cube-texture after recrystallization annealing.

The ban on rare earth exports to Japan last September is still fresh in Japanese minds.

Rare earth metals are often all found together, typically with far more light than heavy elements.

Marvin Dodson, Rare Earth Labs produces concentrated stains that provide a wide variety of colors and tones.

The developing process of the certified reference material for composition analysis of rare earth ores was introduced.

Rare-earth minerals, which are essential to many industrial applications, have become a special problem.

However, dendrimer catalysts are not easily synthesized and rare earth Lewis acid catalysts are easily deliquescence.

Yet, no one is currently producing most rare-earth minerals in the U. S. , while Chinese output is around 120, 000 tons annually.

When the addition amount of rare earth elements was appropriate, the corrosion resistance of aluminum and aluminum alloy foam was improved.

Glass polishing and ceramics are among the uses for rare-earth minerals.

The kinetics on chlorinating the rare earth of Baotou rare earth mixed concentrate after fixed fluorine treatment was determined.

This review summarizes the current progress in rare earth-amino acid complexes binding to nucleic acids and their selectivity.

The Department of Defense is completing a study to identify the potential national security risks of rare-earth material dependency.

Although signs are that U. S. and Australian rare earth mining projects are on their way, it may take several more years.

The heat stabilization of rare earth stearates on PVC was studied.

Export of high value-added rare earth products like europium, terbium, dysprosium, thulium, ytterbium and lutetium will be restricted.

Rare-earth magnetic fine motor, small size, large torque, double insulated device, UL specifications for design, safety.

Wen outmaneuvered the West again and again -- on clean energy, rare-earth metals, currencies, blame for global imbalances, you name it.

The invention includes optical signal conduits having rare earth elements incorporated therein.

A decade ago, America was the world's leading producer of the rare-earth metals.

Over the past four decades, up conversion luminescence of various crystals and glasses doped with rare-earth ions was widely studied.

and calcining the pre-sintered powder to obtain the rare earth cerium ion-doped yttrium aluminum garnet fluorescent powder.

Ms Chegwidden says announcements of rare-earth projects around the world have accelerated in recent months.

The syntheses, structures and properties of rare earth and complexes of amino acids were investigated widely in recent decades.

It also emphasized that on rare earth exploitation, mandatory plans should be strictly executed.

The results show that hardness and grain size of the alloy increases as Rare Earth content is increasing.

Some U. S. consumers of rare earth magnets echoed the German concerns.

Most commentators believed that the supply crunch would ease once new (or mothballed) rare-earth mines are opened.

It currently ships finished rare-earth products stockpiled during the previous round of mining.

To get more air hole ratio in the rare earth foam aluminium alloy, viscidity agent must be added.

As Japanese industries reel from Chinese export restrictions on rare earth metals, alternative sources are moving in to fill the gap.

Under such a situation the export of rare earth metals could very well be restricted far more than it currently is.

Therefore, the rare-earth elements in surface treatments of aluminum alloys have broad application prospects.

The results show that non-toxic and harmless process and better hair dyeing effect are achieved by steaming and using rare earth chloride.

China's timing is excellent, said Dudley J. Kingsnorth, a longtime rare earth industry executive and consultant in Australia.

The invention adds a newcomer for synthesizing high-performance polyisoprene by catalysis of rare earth catalyst in the prior art.

Next week, we'll talk more about rare earth metals, and an American company that plans to start mining them again.

A man works at the site of a rare earth metals mine at Nancheng county, Jiangxi province in 2010.

If so, the trade in rare earth metals would be a likely example.

and structure parameter in rare earth electrolysis cell was studied through simulation experiment.

Rare earth elements can improve the plating bath performance and deposit quality, and has good application prospect.

Rare earth consists of two categories: one is heavy rare earth, the other one is light rare earth.

China's Commerce Ministry Thursday denied a New York Times report that China had halted exports of rare-earth elements to Japan.

It is proposed rare earth chrome-manganese-silicon alloy can replace the costly rare earth ferro-molybdenum alloy to produce . . .

Based on the rare earth fluorescence material, a set of fluorescence optical fiber thermometric system was designed.

a trivalent metallic element of the rare earth group; usually occurs in association with yttrium.

The present work was carried out to investigate the effects of rare earth ascorbate on gastric juice secretion in Angora rabbits.

This paper reviews the function of rare earth in catalytic purification of automotive exhaust gases.

Test your find with a good hardware store magnet, or a rare earth magnet (offered for sale on our web site).

This lake outside of Baotou, China, contains sludge laced with toxic chemical compounds from rare earth processing.

China won't take rare earth as a haggling tool and our goal is realizing sustainable growth of the world.

This paper reports on the full scale tests of production of crystalline rare earth carbonates from low grade heavy rare earth ores.

The influence of rare earth, titanium and nitrogen on the structures and properties of high boron alloy steel was researched.

And on this basis, the usage of all recipes in the decentralized system of the rare earth luminous coating is studied.

The stabilities of intermediate compound in binary systems containing a rare earth element are criticized.

China's decision in recent months to impose tougher quotas on rare-earth metal exports has sparked outcry from Tokyo to Washington.

Chinese restrictions on rare earth exports were already in violation of agreements China made before joining the World Trade Organization.

Within days, China halted its rare-earth exports to Japan, whose high-tech manufacturing sector is heavily dependent on them.

and calcining the precursor in sulfur-containing atmosphere to obtain spherical rare earth oxides.

The characters of the rare earth elements show that the navajoite has the sedimentary characteristics of marine facies hydro solution.

The application of rare-earth fertilizers in the agriculture was firstly suggested with Chinese scientists.

Although rare earth minerals are quite common, they are expensive to produce in a form that industry can use.

Deposition rate increased with the addition of rare earth elements, especially when yttrium was added.

Other types of magnets could be used in turbines, and rare earth metals could be recycled.

Officials in Brussels and Washington had hoped the ruling would encourage Beijing to ease controls on rare-earth exports.

Effects of rare earth element lanthanum on the activities of invertase , catalase and dehydrogenase in red soil .

RE- Carburizing test with solid powder rare earth accelerant in the sealing box multi-purpose furnace was in progress.

The first crystallized microstructure can be fined though the effect of rare earth oxide on heterogeneity nucleus.

Rare earth permanent magnetic second-ranking series motor, low temperature and long using torque not decline.

It barred the sale of rare earth minerals (crucial to the manufacturing of high-tech electronic equipment) to Japan.

Thinning rare earth silicon can increase the melting temperature of coating and the hardness and wear resistance of welded metal.

Some rare-earth industry officials said they believed it possible that China might temporarily cut off exports to Japan.

The rare-earth salts are obtained by organizing lanthanide series inorganic rare-earth salts and long-chain fatty acids.

Rare earth three- basis- colors powder light effects better, saving 25% electricity compared to the ordinary halogen powder lamp.

The effects of rare earth element La during hydrogenolysis were studied by using SEM, X-ray diffraction and chemical and physical analysis.

Although China currently monopolizes rare earth mining, other countries have deposits too.

Conclusion The rare earth ternary complexes have strong fluorescence intensity.

The present invention is rare earth doped germanate glass and its preparation process.

Usage of rare earth grows by about 9% a year.

Kato and the other researchers assumed those particles had absorbed rare earth elements and accumulated on the seafloor.

Also , the cooperative effect was dealt with photo-sensitizer and rare-earth particle in radiation fixation.

The influences of rare earth (RE) content and ageing treatment on the properties of Cu-Cr-Zr alloys are investigated in this paper.

The result shows that adding rare earth can improve the function of resistance of carbon steel to atmosphere corrosion.

And now, allegedly, China has refused to export rare earth oxides, rare earth salts, and pure rare earth metals.

The growth techniques, the barrier states and the interfaces for rare earth silicides were thoroughly described.

It was shown that rare-earth metal oxide effi-cientely improve the structure and wear resistance of laser strengthened area.

China is going to buy up on the land in AFRICA and stash up their RARE-EARTH METALS and INVADE the WORLD.

It studied the influences of rare earth stabilizer on the properties of PVC and compared it with organotin stabilizer.

But a 40% cut in export quotas by China, which accounts for 90% of global rare earth production, sent prices soaring.

The rare earth permanent magnet alloy with a high coercive force is disclosed.

The genesis of deposit is low or medium temperature alkaline magmatic hydrothermal rare earth deposit.

In other words, opening new rare-earth mines outside China will result in staggering environmental impact.

So, in this paper, fluorescence properties of polymers doped with rare earth ions were investigated in details.

He added: "It looks like we could reduce cost, weight and mass and avoid the geopolitical issues with the rare earth metals. "

Rare-earth elements and depositional environments of the Sinian system in southwestern Hunan are discussed.