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Publicações recentes – Patentes sobre elementos de terras raras

. Latest Publications & Patents on Rare-Earth Elements. Additive Manufacturing

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Esta é a nossa mais recente seleção de publicações e patentes mundiais em inglês sobre Elementos de Terras Raras, provenientes de diversos periódicos científicos online, classificadas e focadas em elementos de terras raras, como escândio, ítrio, lantânio, cério, praseodímio, neodímio, promécio, samário, európio, gadolínio, térbio, disprósio, hólmio, érbio, túlio, itérbio, lutécio e outros elementos de terras raras.

Structural member

Patent published on the 2026-06-11 in US under Ref US20260162926 by TOTO LTD [JP] (Kataoka Shun [jp], Takizawa Ryoto [jp], Sakamoto Senri [jp])

Abstract: A structural member having sufficient durability against plasma is provided. The structural member 10 includes a base material 100 and a protective film 200 covering the surface 110 of the base material 100. The protective film 200 includes ytterbium oxide as a main component and has an indentation hardness of greater than 8.6 GPa.[...]


Our summary: A structural member is designed for durability against plasma. It consists of a base material covered by a protective film. The film, primarily made of ytterbium oxide, exhibits high indentation hardness.

structural member, plasma durability, protective film, ytterbium oxide

Patent

Method for recovering rare earth metals (rems) from phosphogypsum industrial waste

Patent published on the 2026-06-11 in WO under Ref WO2026120423 by LOHUM MAT PRIVATE LIMITED [IN] (Kumar Ankit [in], Mandan Chidambaram [in], Sathu Naveen Kumar [in], Joshi Gururaj [in], Verma Rajat [in], Mankar Bitan [in])

Abstract: The present invention provides a method for recovering rare earth metals (REMs) from phosphogypsum, a byproduct of phosphoric acid production. The method involves drying phosphogypsum at 160-180°C, followed by leaching using ferric chloride (FeCl3) and hydrochloric acid (HCl) at a concentration of 2-4M. A displacement reaction occurs, wherein calcium ions (Ca2+) are replaced by iron ions (Fe3+), forming soluble rare earth metal chlorides (REM-Clx). Sodium borohydride (NaBH4) is used as a reduci[...]


Our summary: The method recovers rare earth metals from phosphogypsum waste using leaching with ferric chloride and hydrochloric acid. It achieves high recovery efficiency of 95-98% for metals like cerium and neodymium. The process is cost-effective, environmentally friendly, and scalable for industrial applications.

rare earth metals, phosphogypsum, leaching, recovery efficiency

Patent

Combined method for extracting rare and rare-earth elements from technogenic deposits

Patent published on the 2026-06-10 in UA under Ref UA163296U by DNIPRO UNIV OF TECHNOLOGY [UA] (Kovalevska Iryna Anatoliivna [ua], Kravchenko Oleksandr Hennadiiovych [ua], Haidai Oleksandr Anatoliiovych [ua], Malashkevych Dmytro Serhiiovych [ua], Bondarenko Volodymyr Illich [ua], Petrochuk Yevhenii Viacheslavovych [ua], Shyshov Maksym Valeriiovych [)

Abstract: Combined method for extracting rare and rare-earth elements from technogenic deposits involves open-pit mining to define the excavation perimeter, the sequential development of underground workings, material extraction, and its transportation. Extraction of rare and rare-earth elements is carried out from technogenic waste dump, where the zone of increased concentration of rare and rare-earth elements is preliminarily determined based on the results of three-dimensional geological and technologi[...]


Our summary: A combined method is used to extract rare and rare-earth elements from technogenic deposits. Open-pit mining defines excavation areas, followed by underground workings development. Three-dimensional geological modeling identifies zones with elevated concentrations for targeted extraction.

extraction, rare-earth elements, technogenic deposits, geological modeling

Patent

All-solid-state battery

Patent published on the 2026-06-04 in WO under Ref WO2026116617 by SAMSUNG ELECTRO MECH CO LTD [KR] (Kim Junhyeon [kr], Jung Jihyung [kr], Lee Tae Gyeom [kr], Kim Nahyeon [kr], Kim Han [kr], Kim Doyeon [kr])

Abstract: Provided are an all-solid-state battery and a method of manufacturing the same. The all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer The solid electrolyte layer includes a first material and a second material The first material includes at least one selected from a lithium chloroboracite (LCBA)-based compound and a lithium borosilicate (LBSO)-based compound,[...]


Our summary: The all-solid-state battery consists of a positive electrode, a negative electrode, and a solid electrolyte layer. The solid electrolyte layer is made from a combination of lithium-based compounds and selected metals. A method for manufacturing this battery is also provided.

all-solid-state battery, solid electrolyte, lithium compounds, manufacturing method

Patent

2d multicolor rare earth chalcophosphate emitter and methods making and using same

Patent published on the 2026-06-04 in US under Ref US20260152396 by GOVERNMENT OF THE UNITED STATES AS A REPRESENTED BY THE SECRETARY OF THE AIR FORCE [US] (Susner Michael [us], Rao Rahul [us], Goldstein Jonathan [us], Rowe Emmanuel [us], Siebenaller Ryan [us], Selhorst Ryan [us], Giordano Andrea [us])

Abstract: The present invention relates to 2D multicolor rare earth chalcophosphate emitter and methods making and using same. The present invention relates to 2D multicolor rare earth chalcophosphate emitter and methods making and using same. Devices containing 2D multicolor rare earth chalcophosphates such as erbium containing crystals that have a high intensity, focused emission spectra that has minimal scattering and quenching of photoluminescence. In addition, an improved process for making rare eart[...]


Our summary: The invention focuses on a 2D multicolor rare earth chalcophosphate emitter. It includes methods for producing high-intensity, focused emission spectra with minimal scattering. An improved process utilizing dried metal halide powders for making these crystals is also provided.

2D emitters, rare earth, chalcophosphate, photoluminescence

Patent

Multilayer ceramic capacitor

Patent published on the 2026-06-04 in US under Ref US20260155301 by MURATA MFG CO LTD [JP] (Fukui Shoji [jp])

Abstract: To provide a multilayer ceramic capacitor having high overall reliability, a multilayer bod includes laminated dielectric layers and inner electrode layers. A first main-surface segregation layer is between the inner electrode layer closest to the first main surface and a first outer dielectric layer. A second main-surface segregation layer is between the inner electrode layer closest to the second main surface and a second outer dielectric layer. A first side-surface segregation layer and a sec[...]


Our summary: A multilayer ceramic capacitor features laminated dielectric and inner electrode layers. Segregation layers are positioned between the inner electrodes and outer dielectric layers. Specific elements, including rare-earth elements and silicon, enhance the capacitor s reliability.

multilayer ceramic capacitor, dielectric layers, inner electrode layers, reliability

Patent

Optical investigation of ultra-slow spin relaxation in 171Yb3+:Y2SiO5 single crystals

Published on 2026-03-10 by F Chiossi, A Tiranov, L Nicolas, D Serrano, F Montjovet-Basset, E Lafitte-Houssat, A Ferrier, S Welinski, L Morvan, P Berger, A Tallaire, M Afzelius and P Goldner @IOP SCIENCE

Abstract: We report a detailed investigation of spin relaxation dynamics in the rare-earth-doped crystal 171Yb:Y2SiO5, a promising platform for quantum memory based on atomic frequency combs. The population dynamics among the four ground-state hyperfine levels were studied in the 50 mK–6 K temperature range by optically modifying the spin populations and monitoring their return to thermal equilibrium via absorption spectroscopy. Below 1 K, population rethermalization occurs on timescales of several ho[...]


Our summary: The study investigates spin relaxation dynamics in 171Yb:Y2SiO5 single crystals for quantum memory applications. It reveals that population rethermalization occurs over hours below 1 K, influenced by spin-phonon interactions. The findings suggest optimal doping and temperature conditions for achieving long atomic frequency comb lifetimes.

spin relaxation, quantum memory, absorption spectroscopy, rare-earth-doped crystals

Publication

Methodologies, Challenges, and the Integration of Machine Learning (ML)

Published on 2026-02-03 by Rehan Ullah, Jason Daza, Asma Wederni, Lluisa Escoda, Joan Saurina, Joan-Josep Suol @MDPI

Abstract: The increasing demand and production of neodymium-iron-boron-based permanent magnets (NdFeB-PMs) for the electronics, energy sector, and automobile industries led to disposal consequences. The NdFeB-PMs contain a substantial amount of rare earth elements (REEs). Although China is the largest exporter of REEs to the world, it has applied some restrictive policies in terms of supply chain and taxes. To address such issues, this review systematically examines current recycling techniques, including[...]


Our summary: This review analyzes recycling techniques for neodymium-iron-boron permanent magnets and their environmental impact. It discusses the integration of Machine Learning to enhance leaching processes and addresses challenges in large-scale implementation. The findings highlight the need for technological innovation and policy initiatives to achieve sustainable recycling solutions.

Recycling, Machine Learning, Neodymium-Iron-Boron, Rare Earth Elements

Publication

Tópicos abordados: Elementos de terras raras, revestimento de barreira térmica, microestrutura, propriedades mecânicas, síntese por combustão em solução, dureza Vickers, tenacidade à fratura, expansão térmica, efeito Hall, dopado, perovskita, resistência à corrosão, teste de ciclo térmico, refinamento de grãos, desempenho em altas temperaturas, densidade de portadores de carga, propriedades de transporte, Organização Internacional de Normalização (ISO), ASTM International, Instituto Nacional Americano de Padrões (ANSI), Comissão Eletrotécnica Internacional (IEC) e Organização Internacional de Normalização (ISO).

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(Caso a data seja desconhecida ou irrelevante, por exemplo, "mecânica dos fluidos", é fornecida uma estimativa aproximada de seu surgimento notável)

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