Kacper Staszel

AGH University of Kraków

Green transformation, in fields of energetics and high-tech industries, creates a demand for new sources of Rare Earth Elements (REE), with inexpensive and efficient methods of their extraction. Recently, mineral sources that before were not economically feasible for extraction are viewed as a source of critical elements, including REE. Currently p...

There is a constant search for materials that could be used as geochemical barriers and fillers for radioactive waste storage containers. One of effective methods of immobilizing toxic elements is their precipitation in the form of sparingly soluble crystalline phases. The purpose of this study was to test the effectiveness of co-precipitation of T...

Constant development of high and green technologies makes rare earth elements (REE) more viable than ever. Relative scarcity of REE and lack of proper substitutes increase the demand for inexpensive and efficient methods of their recovery. Some new methods and technologies have been already proposed but their effectiveness leaves much to be desired...

Search for inexpensive and efficient methods of critical raw materials recovery is of great importance across the world due to growing demand for green technologies. Formation and detailed characterization of new Pb- and Light Rare Earth Elements (LREE)-containing phosphates, compared to already described Pb- or LREEcontaining phosphates, was descr...

Introduction There is growing demand for novel REE recovery methods from alternative ores and previously economically unavailable sources, due to the Chinas’ continuous domination of the REE market. One of the recently developed methods is leaching of apatite using phosphoric acid followed by coprecipitation of REE phosphates in the presence of Pb...

The supply of technologically important rare earth elements (REE) is a concern in Europe, hence the recovery of REE from alternative sources has recently become widely investigated. One of the problems is the lack of cost-effective technologies for REE recovery from leaching solutions. The present work investigated the potential for recovering REE...

There is growing interest in alternative pathways for recovery of REE, especially from apatite sources, as modern technologies require a steady supply of critical elements. Phosphates have strong affiliation with metals, including REE and Pb. It was hypothesized that, similarly to Ca-apatites, also Pb-apatite (pyromorphite Pb5(PO4)3Cl) can embed si...

Research on rare earth elements (REE) is currently of high importance due to these elements being considered as critical raw materials. Particularly REE phosphates are the subject of laboratory experiments since they have various applications resulting from their structural diversity. In crystalline rocks REE phosphates occur as monazites and xenot...

Ferrihydrite (Fe 5 HO 8 ·4H 2 O) is a very poorly crystalline hydrous ferric oxyhydroxide common in various near-surface environments. Its high surface area, chemical reactivity and strong sorption properties make ferrihydrite an effective natural scavenger of many major and trace elements occurring in both cationic and anionic forms. Those impurit...

Feroxyhyte is an uncommon ferrimagnetic iron oxyhydroxide with an ideal formula δ-FeOOH. Due to its low crystallinity and specific properties feroxyhyte is a potentially interesting material to be used in e.g. water treatment, catalysis, nanoelectronics and medicine. Therefore synthetic analogues of the oxyhydroxide have been recently extensively s...