Catalysis: A growing market for rare earths

Sauvion, G.N.; Ducros, P.

doi:10.1016/0022-5088(85)90165-1

Cited by 21 publications

(4 citation statements)

References 7 publications

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“…Both are abundant and widely employed in many industrial applications [18,19]. Despite their strategic and economical importance, these REEs have not been extensively studied for biosorption processes.…”

Section: Introductionmentioning

confidence: 99%

Single and binary biosorption of cerium and europium onto crab shell particles

Vijayaraghavan

Balasubramanian

2010

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Single and binary biosorption of cerium and europium onto crab shell particles

Vijayaraghavan

Balasubramanian

2010

Chemical Engineering Journal

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“…Recently, the rare earths gained a lot of interest, since they are used in many high-tech applications and sustainable technology ( permanent magnets, nickel metal hydride batteries, lamp phosphors). 1,2 Europium, one of the most critical rare earths, has a high market value due to its use in the red lamp phosphor Y 2 O 3 :Eu 3+ . 3 Because of the scarcity of europium on the global market, recycling of europium from lamp phosphor waste streams has become increasingly important.…”

Section: Introductionmentioning

confidence: 99%

Photochemical recycling of europium from Eu/Y mixtures in red lamp phosphor waste streams

et al. 2015

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“…18 Rare earth based promoters, alkalineearth ions and Mn oxides have been described in the literature with respect to this objective. [19][20][21][22][23] In the present paper, a cost effective catalytic system for the DIAPR solar reformer was developed. The Ru/Al 2 O 3 catalyst promoted with Mn oxides was supported on ceramic pins by wash coating.…”

Section: Introductionmentioning

confidence: 99%

Steam reforming of methane on a Ru/Al2O3 catalyst promoted with Mn oxides for solar hydrogen production

Berman¹,

Karn²,

Epstein³

2007

Green Chem.

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A new type of solar heated reformers have been developed in recent years. In these reactors, called volumetric reformers, concentrated solar radiation directly illuminates the catalyst through a transparent window. This new type of solar reformer can operate at higher temperatures (1000-1100 uC), since the surface temperature limit of a regular metal tube reactor used in the industry is eliminated and a much higher heating rate is feasible. In the last few years the Weizmann Institute has gathered experience in developing high temperature steam reforming catalysts for its ''DIAPR-Kippod'' based volumetric reformer. The configuration of the absorber in this reformer is an array of ceramic pins. The thermal stability of the catalysts is crucial for the viability of such reactors. Ru/Al 2 O 3 catalysts promoted with Mn oxides are studied. The effect of Mn on the dispersion and sintering of the Ru particles is investigated in the present work with the aid of TEM and EDS. It was found that addition of Mn oxides decreases in the rate of the sintering of the Ru particles. Catalytic elements for use in a volumetric reformer have been developed and tested. The Ru/Al 2 O 3 catalyst promoted with Mn oxides was supported on ceramic pins (made of alumina) by wash coating. The long-term test confirmed the chemical and thermal stability of the catalyst even after operating for 500 hours at 1100 uC.

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Catalysis: A growing market for rare earths

Cited by 21 publications

References 7 publications

Single and binary biosorption of cerium and europium onto crab shell particles

Single and binary biosorption of cerium and europium onto crab shell particles

Photochemical recycling of europium from Eu/Y mixtures in red lamp phosphor waste streams

Steam reforming of methane on a Ru/Al2O3 catalyst promoted with Mn oxides for solar hydrogen production

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