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10 hours ago018332Canadianlisted rare earth clean technologies developer Geomega Resources’ patent application US15578,498 titled, ‘A system and a method for metallurgical extraction of rare earth …

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Company patents extraction method   engineeringnews co za

Company patents extraction method engineeringnews co za

10 hours ago018332Canadianlisted rare earth clean technologies developer Geomega Resources’ patent application US15578,498 titled, ‘A system and a method for metallurgical extraction of rare earth …

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China’s war chest of rare earth patents give an insight

China’s war chest of rare earth patents give an insight

Jul 20, 2019018332The country, which already supplies more than 80 per cent of the world’s rare earth metals, is rapidly amassing patents related to the elements, says James Kennedy, president of St …

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Geomega Resources targets rare earth magnets   Recycling …

Geomega Resources targets rare earth magnets Recycling …

Jun 25, 2020018332The company can capture and recycle at least 95 percent of this reagent in its batch process while also recovering niobium, iron and four rare earth elements neodymium, praseodymium, terbium, dysprosium. Its process recently received a patent from the U.S. Patent and Trademark Office.

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Rare earth metal recovery from typical e waste   …

Rare earth metal recovery from typical e waste …

Jan 01, 201901833215.1. Introduction. Rare earth elements REEs are used in the widest range of consumer products of any element group because of their unique physical and chemical properties Castor and Hedrick, 2006.These product fields include petroleum refining, metallurgical additives and alloys, glass polishing and ceramics, permanent magnets, phosphors, automotive catalytic converters, and others ...

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Recovery of Rare Earths and Other Valuable Metals From

Recovery of Rare Earths and Other Valuable Metals From

Aug 11, 2016018332The longterm storage of bauxite residue red mud is harmful to the environment and the tailing ponds also cover large areas. At the moment there is no largescale utilization of bauxite residue. However, some bauxite residues contain considerable concentrations of rareearth elements REEs and the recovery of these REEs together without other metals and utilization of the generated ...

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Tech Transfer   netl doe gov

Tech Transfer netl doe gov

Streamlining The Process To Extract Lithium, Rare Earth Elements From Natural Brines Fri, 12062019 1200 U.S. Patent Pending Research is active on the development and refinement of a process for the extraction of lithium Li and rare earth elements REEs from natural brines.

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Periodic Products   Discover great chemistry

Periodic Products Discover great chemistry

Periodic Products Awarded Brazilian Patent for Metal Recovery and Related Technologies. December 4th, 2019. Periodic Products Article on Rare Earth Element Recovery Published in Minerals Magazine. ... Improve recoveries of mined precious metals and rare earth elements

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Defense Metals Corp   Rare Earth Metals Play with Tiny

Defense Metals Corp Rare Earth Metals Play with Tiny

May 30, 2019018332If one talks about rare earth metals, the ones that come to mind are Nd, Pr and Dy. Earlier this year I asked Mr. Merriman about the dominance of select metals and, of course, China. He said quotChina leads in production of both mined rare earth products and refined rare earth compounds, with Chinese production accounting for 86 of global ...

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A Look at Rare Earth Metals and Their Applications

A Look at Rare Earth Metals and Their Applications

Dec 04, 2019018332Rare Earth Metals and Their Applications . In the periodic table of the elements, the third column lists the rare earth elements. The third row of the third column is expanded below the chart, listing the lanthanide series of elements. Scandium and Yttrium are listed as rare earth metals, although they are not part of the lanthanide series.

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Eleven Rare Earth Companies to watch  including Molycorp

Eleven Rare Earth Companies to watch including Molycorp

The companies reviewed below cover a variety of business models in the rare earths space.This article follows on from Rare Earth Elements The Seventeen Metals Crunch. Factors to consider when reviewing the explorerdevelopers include the skills base within the company, the likely access to capital rare earth projects are expensive, the political risk and the required infrastructure many ...

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Separation of the rare earth fission product poisons from

Separation of the rare earth fission product poisons from

Method of treating rare earth metalbearing scrap, waste or other material e.g. NdFeB or DyTbFe scrap to recover the rare earth metal comprising melting the rare earth metalbearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted ...

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Rare earth transition metal scrap treatment method Patent

Rare earth transition metal scrap treatment method Patent

Method of treating rare earth metalbearing scrap, waste or other material e.g. NdFeB or DyTbFe scrap to recover the rare earth metal comprising melting the rare earth metalbearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted material and melted extractant at a temperature and ...

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Hitachi Metals Enters Into New Patent License …

Hitachi Metals Enters Into New Patent License …

Hitachi Metals is a recognized worldwide leader in the field of sintered rare earth magnets. Hitachi Metals owns over 600 sintered rare earth magnet patents worldwide, including over 100 patents in the United States alone. This significant patent portfolio contains patents important for the safe, efficient, commercial manufacture of sintered ...

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Medallion Advances Rare Earth Element Process …

Medallion Advances Rare Earth Element Process …

Sep 01, 2020018332Medallion Resources has developed a proprietary process and related business model to achieve lowcost, nearterm, rareearth element REE production by exploiting monazite. Monazite is a rareearth phosphate mineral that is widely available as a …

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Company patents extraction method   engineeringnews co za

Company patents extraction method engineeringnews co za

10 hours ago018332Canadianlisted rare earth clean technologies developer Geomega Resources’ patent application US15578,498 titled, ‘A system and a method for metallurgical extraction of rare earth …

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Recycling of rare earth metals from rare earth transition

Recycling of rare earth metals from rare earth transition

Method of treating rare earth metalbearing scrap, waste or other material e.g. NdFeB or DyTbFe scrap to recover the rare earth metal comprising melting the rare earth metalbearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted material and melted extractant at a temperature and ...

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Method for treating rare earth transition metal scrap

Method for treating rare earth transition metal scrap

Method of treating rare earth metalbearing scrap, waste or other material e.g. NdFeB or DyTbFe scrap to recover the rare earth metal comprising melting the rare earth metalbearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted ...

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US Patent for Method and apparatus for extracting and

US Patent for Method and apparatus for extracting and

Apr 06, 2015018332Justia Patents Rare Earth Metal at. No. 21, 39, Or 5771 US Patent for Method and apparatus for extracting and removing rare earth metal ions from plating solution Patent Patent …

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Recycling rare earth metals   Managing Intellectual Property

Recycling rare earth metals Managing Intellectual Property

The dissolved rare earth metal is then precipitated from the aqueous solution as rare earth metal oxalate, sulphate or phosphate. The precipitate is then calcined to produce a rare earth metal oxide. It has been reported that the above method can provide over 99 purity of the rare earth metals in the form of oxides, sulphates or phosphates.

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UK Researchers First to Produce High Grade Rare Earths

UK Researchers First to Produce High Grade Rare Earths

Nov 20, 2017018332The achievement was made possible using a patent pending process developed by Honaker and Wencai Zhang and with funding provided by a U.S. Department of Energy Cooperative Agreement. “Our novel rare earth recovery process is low cost and more environmentally friendly than alternative technologies, such as solvent extraction,quot Honaker said.

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The U S  Needs China For Rare Earth Minerals  Not For Long

The U S Needs China For Rare Earth Minerals Not For Long

Apr 07, 2020018332Round Top Mountain, Texas. Image courtesy USA Rare Earth. A whole slate of new bad behaviors by China’s repressive regime have been laid bare by the COVID19 crisis.

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Review on hydrometallurgical recovery of rare earth metals

Review on hydrometallurgical recovery of rare earth metals

Oct 01, 2016018332But several hydrometallurgical methods for the recovery of nickel, cobalt and rare earth metals from NiMH batteries were developed by various researchers using the process of leaching with HCl, H 2 SO 4 and HNO 3 Lyman and Palmer, 1995, Li et al., 2009, Kaindl et al., 2012, Nan et al., 2006, Zhang et al., 1998, Zhang et al., 1999, Kanamori et ...

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Investing in Rare Earth Stocks  Our Top 3 Picks for 2020

Investing in Rare Earth Stocks Our Top 3 Picks for 2020

Oct 12, 2019018332The U.S.China trade war has sparked fear in the rare earth element REE markets, as most rare earths come from China. But that could mean …

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A Look at Rare Earth Metals and Their Applications

A Look at Rare Earth Metals and Their Applications

Dec 04, 2019018332Rare Earth Metals and Their Applications . In the periodic table of the elements, the third column lists the rare earth elements. The third row of the third column is expanded below the chart, listing the lanthanide series of elements. Scandium and Yttrium are listed as rare earth metals, although they are not part of the lanthanide series.

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On the Extraction of Rare Earth Elements from Geothermal

On the Extraction of Rare Earth Elements from Geothermal

The availability of rare earth elements from primary resources has come into question in the last two decades. This has sparked various government and industry initiatives to examine potential rare earth element resources apart from virgin ore bodies. Geothermal fluids are potentially significant sources of valuable minerals and metals, while corecovery with geothermal energy production would ...

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Company patents extraction method   engineeringnews co za

Company patents extraction method engineeringnews co za

10 hours ago018332Canadianlisted rare earth clean technologies developer Geomega Resources’ patent application US15578,498 titled, ‘A system and a method for metallurgical extraction of rare earth …

Get Price

Tusaar   A Hold on Metals

Tusaar A Hold on Metals

We proudly hold one U.S. Patent and have two others pending. Our innovative research center is located in Westminster, CO. Rare Earth Metals Extraction and Recovery. The separation of rare earth metals from other metals and contaminants. Read more gtgt Water Treatment. The isolation of contaminating metals from process or waste streams.

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US Patent for Method and apparatus for extracting and

US Patent for Method and apparatus for extracting and

Apr 06, 2015018332Justia Patents Rare Earth Metal at. No. 21, 39, Or 5771 US Patent for Method and apparatus for extracting and removing rare earth metal ions from plating solution Patent Patent …

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Rare Earths  Could Prices Fall Due to Japan China Patent War

Rare Earths Could Prices Fall Due to Japan China Patent War

Hitachi holds more than 600 patents for rareearth magnets globally, some of which it acquired after taking over Sumitomo Special Metals Co. in the 2000s. The Rare Earths MMI did not move for the sixth consecutive month, showing just how much the market has stabilized since the last ChinaJapan rare …

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Maxime VINCEC Inventions  Patents and Patent Applications

Maxime VINCEC Inventions Patents and Patent Applications

Mar 13, 2014018332Abstract The present invention relates to a process for the selective recovery of the rare earth metals from an acidic aqueous sulfate solution comprising phosphates, aluminum and heavy rare earth metals, and possibly medium rare earth metals, ironII and titanium, characterized in that it comprises the following successive stages a neutralization at a pH of between 3 and 4 of an acidic ...

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Medallion Advances Rare Earth Element Process …

Medallion Advances Rare Earth Element Process …

Sep 01, 2020018332Medallion Resources has developed a proprietary process and related business model to achieve lowcost, nearterm, rareearth element REE production by exploiting monazite. Monazite is a rareearth phosphate mineral that is widely available as a …

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Simple chemical method for the separation of rare earth metals

Simple chemical method for the separation of rare earth metals

Jul 29, 2015018332A method is provided for separating mixtures of different rare earth metals using a ligand having a sizesensitive molecular aperture. The present invention meets the needs in the field by providing method of separating and purifying rare earth metals. The object of this invention is to separate and purify rare earth metals, e.g., the more valuable Dy away from Nd, in mixtures …

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Method of forming magnetostrictive rods from rare earth

Method of forming magnetostrictive rods from rare earth

Rods of magnetrostructive alloys of iron with rare earth elements are formed by flowing a body of rare earthiron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten rareearthiron alloy into a hollow mold tube of refractory material positioned with its lower end portion within the molten body by means of a pressure differential between the ...

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Tusaar   A Hold on Metals

Tusaar A Hold on Metals

We proudly hold one U.S. Patent and have two others pending. Our innovative research center is located in Westminster, CO. Rare Earth Metals Extraction and Recovery. The separation of rare earth metals from other metals and contaminants. Read more gtgt Water Treatment. The isolation of contaminating metals from process or waste streams.

Get Price

The U S  Needs China For Rare Earth Minerals  Not For Long

The U S Needs China For Rare Earth Minerals Not For Long

Apr 07, 2020018332Round Top Mountain, Texas. Image courtesy USA Rare Earth. A whole slate of new bad behaviors by China’s repressive regime have been laid bare by the COVID19 crisis.

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The recovery of rare earth elements from coal combustion

The recovery of rare earth elements from coal combustion

Jan 01, 2019018332Rare earth contents of Chinese coal combustion products were investigated. • Some ionic liquid type extractants were studied for the purification of REEs. • The purification multiples of Al, Fe, Ca were 94, 40,588 and 8.7 times. • The recovery rate of rare earth arrived at 37.4.

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Rare opportunity to recycle rare earths   Recycling Today

Rare opportunity to recycle rare earths Recycling Today

Jan 03, 2018018332In August 2016, CMI created a table of more than 460 U.S. patents, ... CMI says it is addressing three major technical challenges associated with rareearth metals recycling recovery, separation of one rareearth metal from another and converting the ore to metal.

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Accomplishing simple  solubility based separations of rare

Accomplishing simple solubility based separations of rare

Dec 27, 2016018332Rare earth metals, La–Lu, Sc, and Y, are essential components of electronic materials and permanent magnets in diverse technologies. But, their mining and separations chemistry are unsustainable and plagued with supply problems. Recycling of consumer materials containing rare earths is a promising new source of these critical materials but similarly requires efficient separations. We …

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Recycling of rare earths  a critical review   ScienceDirect

Recycling of rare earths a critical review ScienceDirect

Jul 15, 2013018332The rare earths or rareearth elements REEs are a group of 17 chemically similar metallic elements 15 lanthanides, plus scandium and yttrium. They are becoming increasingly important in the transition to a green, lowcarbon economy. This is due to their essential role in permanent magnets, lamp phosphors, rechargeable NiMH batteries, catalysts and other applications Tables 1 and 2.

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Medallion Advances Rare Earth Element Process …

Medallion Advances Rare Earth Element Process …

Sep 01, 2020018332Medallion Resources has developed a proprietary process and related business model to achieve lowcost, nearterm, rareearth element REE production by exploiting monazite. Monazite is a rareearth phosphate mineral that is widely available as a …

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US Patent Application for Method of fabricating optical

US Patent Application for Method of fabricating optical

Disclosed is a method of fabricating an optical fiber or an optical device doped with d metal ion andor rare earth ion, comprising steps of forming a partiallysintered fine re in a base material for fabricating the optical fiber or the optical device soaking the fine re into a doping solution containing a reducing agent together with metal ion and rare on during a selected time drying the ...

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Membrane assisted solvent extraction for rare earth

Membrane assisted solvent extraction for rare earth

Method of treating rare earth metalbearing scrap, waste or other material e.g. NdFeB or DyTbFe scrap to recover the rare earth metal comprising melting the rare earth metalbearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted ...

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Recovery of Rare Earth Elements   Google Patents

Recovery of Rare Earth Elements Google Patents

A process for recovering rare earth elements from a composite ore containing rare earth elements that includes a monazite group mineral and an apatite mineral, includes preleaching the composite ore with an acid so as to substantially dissolve the apatite mineral into the leach liquor and precipitating rare earth elements from the preleach liquor.

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US20190085428A1   Recovery of precious and rare earth

US20190085428A1 Recovery of precious and rare earth

This invention relates to methods for the recovery of precious metals such as gold, silver, platinum, palladium and rare earths from precious metalbearing materials.

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WO2017158561A1   Recovery of precious and rare earth

WO2017158561A1 Recovery of precious and rare earth

This invention relates to methods for the recovery of precious metals such as gold, silver, platinum, palladium and rare earths from precious metalbearing materials.

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US5030424A   Recovery of rare earth elements from Bayer

US5030424A Recovery of rare earth elements from Bayer

A process for the recovery of rare earth elements from Bayer Process red mud includes the following steps a digesting red mud containing rare earth elements with a dilute acid solution, e.g....

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US3420861A   Efficient preparation of rare earth metal

US3420861A Efficient preparation of rare earth metal

US3420861A US3420861DA US3420861A US 3420861 A US3420861 A US 3420861A US 3420861D A US3420861D A US 3420861DA US 3420861 A US3420861 A US 3420861A Authority US United States Prior art keywords rare earth metal oxalate solution amount Prior art date 19680223 Legal status The legal status is an assumption and is not a legal conclusion.

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Rare Earth Metal  at  No  21  39  Or 57 71  Patents and

Rare Earth Metal at No 21 39 Or 57 71 Patents and

Nov 29, 2017018332Method and apparatus for extracting and removing rare earth metal ions from plating solution. Patent number 9399828. Abstract In an extraction tank, a plating solution containing rare earth metal ions is treated with an extracting solution of an extractant in a waterinsoluble organic solvent.

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US Patent Application for METHOD FOR RECOVERING RARE …

US Patent Application for METHOD FOR RECOVERING RARE …

Nov 01, 2012018332The object of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high recovery rate without using any expensive chemicals, solvents or the like. In the present invention, a watersoluble salt other than sulfate ions is allowed to coexist with an aqueous solution that contains a rare earth ...

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Investing in Rare Earth Stocks  Our Top 3 Picks for 2020

Investing in Rare Earth Stocks Our Top 3 Picks for 2020

Oct 12, 2019018332Here are our top 3 rare earth stock picks for 2020. The U.S.China trade war has sparked fear in the rare earth element REE markets, as most rare earths come from China.

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Rare Earths  Global Markets  Applications  Technologies

Rare Earths Global Markets Applications Technologies

Jul 27, 2020018332The seventh and final section Chapter 9 includes an extensive U.S. patent analysis, with a summary of patents related to rare earth materials, processes and applications issued in 2019 Patent ...

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The recovery of rare earth elements from coal combustion

The recovery of rare earth elements from coal combustion

Jan 01, 2019018332Rare earth contents of Chinese coal combustion products were investigated. • Some ionic liquid type extractants were studied for the purification of REEs. • The purification multiples of Al, Fe, Ca were 94, 40,588 and 8.7 times. • The recovery rate of rare earth arrived at 37.4.

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Crusher Gap Setting By Ultrasonic Measurement

Crusher gap setting by ultrasonic measurement 16a method for determining the adjustment of a crusher gap setting andor crusher rate of wear in a gyratory crusher with hydraulic adjustment of the crusher cone height the invention allows measuremen fig 1 is a side view showing a vertical c

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