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rare earths yttrium

Extraction of Rare Earth Elements from Phosphogypsum Using ...

1 A hydrometallurgical process is developed to leach yttrium, neodymium, and dysprosium from phosphogypsum using three mineral acids, namely, nitric acid, hydrochloric acid, and sulfuric acid over a wide range of conditions. Hydrochloric acid is selected as the best leachant, resulting in 94.6% neodymium and 86.1% dysprosium leaching efficiency under the optimum operating …

US3110556A - Process for separating yttrium from the rare ...

rare earth yttrium acid aqueous Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US652071A Inventor Donald F Peppard George W Mason Original ...

The only five rare earth elements that matter - MINING.COM

The others are heavy rare earth elements (HREEs), including europium, terbium, dysprosium and yttrium. The latter isn't really an REE, but it's associated with them. As the market corrects to ...

Unearthing the Rare Earths Investment Opportunity | VanEck

Understanding the Rare Earth Industry. The term "rare earths", or REEs, refers to 17 metallic elements (15 lanthanides plus scandium and yttrium) 1 located in the middle of the periodic table. These elements are a subset of "strategic metals", which are various metalloids spread across different periodic groups.

Rare earths and Yttrium: market outlook to 2015

Rare earths and Yttrium: market outlook to 2015 Print Email Details Monday, 21 November 2011 11:31 . The rare earths industry is at a turning point, new sources of supply from mines outside China are coming on stream, the industry in China is coming under more effective control with increased corporate consolidation led by state controlled ...

Rayleigh fractionation of heavy rare earths and yttrium ...

Rare earth element concentrations in the rims are typically one order of magnitude lower than those in the cores. A notable feature of this zonation is the inversion of Yb/Er and Yb/Dy ratios, from >1 in the cores to <1 in the rims. We show quantitatively that the spatial distribution of these trace elements in garnet can be most simply and ...

Rare Earths & Yttrium: Market Outlook to 2015 - Magnetics ...

March 5, 2012 Editorial Staff Main Site, News Comments Off on Rare Earths & Yttrium: Market Outlook to 2015 The rare earths industry is at a turning point, as new sources of supply come on stream, industry in China consolidates under a limited number of state owned enterprises, and consumers re-evaluate the way in which rare earths are used ...

Yttrium - Wikipedia

Yttrium is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". Yttrium is almost always found in …

A whole new world for rare earths - C&EN | Chemistry news ...

The rare earths, a collection of 17 elements including the lanthanides—lanthanum to lutetium—along with scandium and yttrium, have become indispensable components in …

Rare Earth Element and Yttrium Variability in South East ...

We present data for the rare earth elements and yttrium (REY) in the National Research Council of Canada natural river water reference material SLRS-4 and 19 natural river waters from small catchments in South-East Queensland, Australia, by a direct ICP-MS method. The 0.22 μm filtered river water samples show a large degree of variability in both the REY concentration, …

Rare Earths - Arkansas Geological Survey

The rare earth metals are a family of 17 elements consisting of scandium, yttrium, and the lanthanum-group elements. The term "rare earths" is a misnomer, as some of these elements are not particularly rare and all of them are metals, not earths. The elements are similar in their chemical properties to aluminum.

Facts About Yttrium | Live Science

Yttrium wires and rods are also used in electronics and solar energy. Yttrium is also used in lasers, ceramics, camera lenses, and dozens of other items. Yttrium is also one of the rare-earth ...

Yttrium Oxide Y2O3 99% | Rare Earth | Thermal Spray ...

Yttrium oxide is white to light yellow powder, which is a kind of rare earth oxides. It is insoluble in dilute acid, however nearly insoluble in water. Yttrium Oxide; Yttrium Oxide. CAS No.:: EINECS No.:215-233-5: Molecular Formula:Y 2 O 3: Molecular Weight:225.81:

Science of Rare Earth Elements | Science History Institute

Includes europium (Eu), yttrium (Y), erbium (Er), and neodymium (Nd) Some of the rare earth elements have luminescent properties, meaning they give off light when stimulated by electromagnetic radiation. These elements are used as phosphors (light-emitting substances) in energy-efficient light sources, such as light-emitting diodes (LEDs) and ...

Comparing yttrium and rare earths in hydrothermal fluids ...

Similar Y/Ho ratios in black-smoker fluids and MORBasalts argue against an important role of Rare Earths and Yttrium (REY) fluoride complexes in the solutions, but are compatible with a REY speciation dominated by chloride complexes and `free' REY 3+ ions. Close to the vent orifice, Y behaves conservatively during mixing of high-temperature ...

What are rare earth elements, and why are they important ...

The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium and yttrium. Rare earth elements are an essential part of many high-tech devices. The U.S. Geological Survey news release "Going Critical" explains:

Rare earths, the lanthanides, yttrium and scandium

In 2005, rare earths were not mined in the United States. The major supplier, Molycorp, continued to maintain a large stockpile of rare-earth concentrates and compounds. Consumption decreased of refined rare-earth products. The United States remained a major importer and exporter of rare earths in 2005. During the same period, yttrium was not mined or refined in …

Rare Earth Stocks: 11 Top Rare Earth Metal Companies ...

There are 17 rare earth elements but cerium, neodymium, lanthanum, praseodymium, yttrium and dysprosium are the most commonly used. If you're looking to invest in cheap rare earth stocks, here are 11 publicly traded rare earth mining and refining companies stock to consider investing in: 1. MP Materials Corp (NYSE: MP)

Yttrium Oxide Y2O3 99% | Rare Earth | Thermal Spray ...

Yttrium oxide is white to light yellow powder, which is a kind of rare earth oxides. It is insoluble in dilute acid, however nearly insoluble in water. Yttrium Oxide; Yttrium Oxide. CAS No.:: EINECS No.:215-233-5: Molecular …

Yttrium Facts - Softschools.com

Yttrium is a transition metal that is often called a rare earth element. Yttrium is a soft element and is considered stable in air when in a large piece. Part of its stability comes from the coating of oxide that builds up to protects its exposed surfaces. Whenever yttrium is sliced into shavings or small particles, it actually becomes unstable.

Rare Earth Metals Global Markets Report 2021: Focus on ...

Rare Earth Metals Global Markets Report 2021: Focus on Neodymium, Yttrium, Dysprosium, Terbium, Europium, Cerium, Lanthanum - ResearchAndMarkets.com Read full article December 7, 2021, 4:38 AM ...

Extraction and separation of yttrium from the rare earths ...

The extraction behavior of yttrium and lanthanides with CA-12–TBP in kerosene solution is shown in Fig. 3, Fig. 4. Fig. 3 shows the effect of log D versus pH on the single rare earths and that on the mixture rare earths using the feed as aqueous is shown in Fig. 4 which is more representative and realistically for industry application. Each rare earths extraction …

Rare Earths | AMERICAN ELEMENTS

Rare Earth Elements. Cerium is the most abundant of the rare earths. It is characterized chemically by having two valence states, the +3 cerous and +4 ceric states. The ceric state is the only non-trivalent rare earth ion stable in aqueous solutions, making it strongly acidic and moderately toxic, as well as a strong oxidizer.The cerous state closely resembles the other …

Rare-Earth Doped Fluorides | Northrop Grumman Synoptics ...

Rare-Earth Doped Fluorides. SYNOPTICS provides yttrium lithium fluoride (YLF) crystals doped with a variety of rare earths such as Nd, Pr, Tm, Yb, Er, and Ho. Advantages include low beam divergence, efficient single-mode operation, weak thermal lensing, and naturally polarized light. Large boule growth technology allows for uniform large ...

Development of Rare Earth Elements Separation Processes ...

Rare Earth Elements and Yttrium (REY) constitute an important family of metals, with a wide range of applications and a massive impact on global industry. Studies have verified that the REY exist at significant concentrations in coal fly (CFA) and bottom ash (CBA). In the present contribution, the feasibility of CFA and CBA from the thermal power plant of PPC Meliti, Florina …

QUANTITATIVE DETERMINATION OF RARE EARTHS IN YTTRIUM …

X-ray excited optical fluorescence of trace rare earths in yttrium phosphate and yttrium vanadate hosts. The part per giga level determination of rare earth impurities in yttrium oxide. Journal Article D'Silva, A ; Fassel, V - Anal. Chem. 45: No. 3, 542-547(Mar 1973).

Yttrium Data Sheet - Mineral Commodity Summaries 2020

Rare-earth metals, unspecified, whether or not intermixed or interalloyed 2805.30.0090 5.0% ad val. Mixtures of rare-earth oxides containing yttrium or scandium as the predominant metal 2846.90.2015 Free. Mixtures of rare-earth chlorides containing yttrium or scandium as the predominant metal 2846.90.2082 Free.

Preparation of yttrium and rare-Earth metals by ...

preparation of yttrium or rare -earth metals by metallothermic reduction. Particular emphasis was placed on the use of high - purity chloride salts as intermediates. Methods were stressed which appeared adaptable to production of high - purity, ductile metal on a plant scale.

Rare Earths Statistics and Information | U.S. Geological ...

Rare Earths Statistics and Information. Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodity group rare earths - scandium, yttrium, and the lanthanides. The principal economic sources of rare earths are the minerals bastnasite, monazite, and loparite and the lateritic ion-adsorption clays.

Rare Earth Element Accumulation Processes Resulting in ...

To find economic rare earth element ion-adsorption clay deposits in the U.S., we must determine the very specific source rock types and geochemical parameters necessary for the mass transfer, accumulation, and, most importantly, the retention of adsorbed heavy rare earth elements and yttrium in regolith.

Extraction and separation of yttrium from other rare ...

1. Introduction. Yttrium has been widely applied in many areas such as metallurgy, electronics, ceramics, laser and fluorescent material.1, 2, 3 Because of their similar chemical properties, yttrium and the lanthanides always coexist in the rare earth minerals, especially in the ion-adsorption type rare earth deposits. 4 Typically, the ion-adsorption type …

Rare Earth Elements - Rare Element Resources

Rare earth elements are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium. Scandium and yttrium are considered rare earth elements since they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties.

Yttrium oxide price globally 2011-2030 | Statista

Forecast of rare earth oxide yttrium oxide price globally 2011-2030. It is forecast that the price of yttrium oxide be some 2.60 U.S. dollars per kilogram in 2030. The yytrium oxide price was 2.94 ...

Fluorescence enhancement of rare earths by yttrium and its ...

OSTI.GOV Journal Article: Fluorescence enhancement of rare earths by yttrium and its application Title: Fluorescence enhancement of rare earths by …