Merck Patent Gmbh

Heraeus Deutschland Gmbh & Co Kg

Heraeus Precious Metals North America LLC

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft

Holger Winkler

Thomas Juestel

Ralf Petry

Tim Vosgroene

Andreas Benker

Christof Hampel

Dominik Uhlich

Arturas Katelnikovas

Brian Peters

Jimmy Taylor

Ralf Anselmann

Felix Stoffner

Bernhard Bauer-Siebenlist

Julian Plewa

Walter Tews

Gundula Roth

Reinhold Rueger

Clemens Kuehn

Chris Hobbs

Christoph Röhlich

Todd England

Arturas Kastelnikovas

Stefan Tews

Monika Kursawe

Steffen Voss

Aleksander Zych

Harald Dörr

Andrea Opolka

Olga Darcanova

Tilmann Ruhl

Goetz Hellmann

Diana Caroline Vieten

Harald Doerr

G P Hellmann

Tillmann Ruhl

Günther Vulpius

Karl Bernhard Friedrich

Bernhard Bauer-siebenlist

Regina Dittrich

Joseph A Spencer

Stephanie Moeller

Thomas Richards, Sr

Norbert Ritschel

Matthias Mueller

Tobias Dierkes

Florian Baur

Martina Hueber

Simas Sakirzanovas

Andre Bleise

Danuta Dutczak

Thomas Vosgroene

Guenther Vulpius

Olaf Soeth

Peter Barnekow

Claudia Suessemilch

David King

Kassandra Sullivan-Trujillo

Monica Davis

A method for producing a collector alloy comprising 25 to 100 wt % precious metal in total, comprising 0 to <97 wt % of the precious metal silver, 0 to 75 wt % of at least one precious metal selected from gold, platinum, rhodium and palladium, and 0 to 75 wt % of at least one non-precious metal selected from copper, iron, tin and nickel, or for producing pure silver, comprising the steps of:

Method for the production of a collector alloy comprising precious metal or of pure silver

A method for producing a PGM collector alloy comprising the steps of:

Method for producing a PGM collector alloy

A process for the recovery of precious metal (PM) from PM oil, the process including combustion of PM oil within a furnace, where the PM oil is burned in atomized form.

Process for the recovery of precious metal from petrochemical process residues

A process for the incineration of activated coal-supported PGM catalysts, the process comprising a joint incineration of a multilayer arrangement, wherein the multilayer arrangement includes (i) a top layer of particulate activated coal-supported PGM catalyst, (ii) a layer of coarse charcoal located beneath said top layer and, optionally, (iii) a layer of particulate coke located beneath the charcoal layer, and wherein an upward flow of oxidizing gas is homogeneously passed through said multilayer arrangement during the incineration.

Process for the incineration of activated coal-supported PGM catalysts

A process for production of a PGM (platinum group metal)-enriched alloy containing iron and PGM(s) (platinum, palladium and/or rhodium) includes steps of: (1) providing a sulfur-free PGM collector alloy, (2) providing a copper- and sulfur-free material capable of forming a molten slag-type composition including silicon dioxide and magnesium and/or calcium oxide, (3) melting the PGM collector alloy and slag-forming material within a converter until a multi-phase system of a lower high-density molten mass of PGM collector alloy and an upper low-density molten mass of slag-type composition has formed, (4) contacting an oxidizing gas with the lower high-density molten mass of step (3) until conversion of the PGM collector alloy into a PGM-enriched alloy, (5) separating an upper molten slag formed in step (4) from the PGM-enriched alloy by difference in density, (6) allowing the separated molten masses to cool down and solidify, and (7) collecting the solidified PGM-enriched alloy.

Process for the production of a PGM-enriched alloy

The present invention relates to silicate phosphors, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention, and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and to lighting units which comprise a primary light source and the emission-converting material according to the invention.

Phosphors

The invention relates to Eu-activated phosphors, to a process for the preparation of these compounds, and to phosphor mixtures, light sources and lighting units which comprise the Eu-activated phosphors according to the invention.

Eu-activated luminophores

The invention relates to Eu-activated phosphors, to a process of its preparation, the use of these phosphors in electronic and electro optical devices, such as light emitting diodes (LEDs) and solar cells and especially to illumination units comprising said magnesium alumosilicate-based phosphors.

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The present invention relates to europium-doped phosphors, to a process for the preparation thereof, and to the use of these compounds as conversion phosphors. The present invention furthermore relates to light-emitting devices which comprise the phosphor according to the invention.

The present invention relates to Eu&#x2014;, Sm&#x2014; or Pr-doped silicate compounds, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and lighting units which contain a primary light source and the emission-converting material according to the invention.

Silicate phosphors

The present invention relates to a process for the preparation of a europium-doped alkaline-earth metal siliconitride or silicooxynitride having increased emission efficiency. The present invention furthermore relates to europium-doped alkaline-earth metal siliconitrides or silicooxynitrides which are obtainable by the preparation process according to the invention, and to the use of the europium-doped alkaline-earth metal siliconitrides or silicooxynitrides according to the invention as conversion phosphors. The present invention furthermore also relates to a light-emitting device which comprises a europium-doped alkaline-earth metal siliconitride or silicooxynitride according to the invention.

Process for production of phosphors

The present invention relates to a composite ceramic which comprises a conversion phosphor and a further material, characterized in that the further material has a negative coefficient of thermal expansion, and to a process for the preparation thereof. Furthermore, the present invention also relates to the use of the composite ceramic according to the invention as emission-converting material, preferably in a white light source, and to a light source, a lighting unit and a display device.

Composite ceramic which comprises a conversion phosphor and a material having a negative coefficient of thermal expansion

The invention relates to novel phosphor mixtures comprising three or more silicate phosphors. The invention furthermore relates to the use of these mixtures in electronic and electro-optical devices, in particular in light-emitting diodes (LEDs) for backlighting applications. The invention furthermore relates to LEDs comprising the phosphors.

Phosphor mixtures comprising europium-doped ortho-silicates

The invention relates to surface-modified phosphor particles based on luminescent particles of (Ca,Sr,Ba)SiOand/or other silicates, in each case individually or mixtures thereof with one or more activator ions, such as Eu, Mn, Ce and/or Mg and/or Zn, where at least one metal, transition-metal or semimetal oxide coating and an organic coating are applied to the luminescent particles, and to a preparation process.

Surface-modified phosphors

Disclosed are phosphors of formula (I) (LnGdSm)MgSr(AlB)O(I), where Ln=Y, La and/or Lu; a, c=0.0 to 1.0; 0&#x3c;b&#x3c;0.2 and a+b&#x3c;1.0; w=1.0 to 3.0; x, y=1.0 to 2.0 and z&#x3e;0.0 to 12.0, and to a process for the preparation of these phosphors and to the use thereof as conversion phosphors for conversion of the near-UV emission from an LED.

SM-activated aluminate and borate phosphors

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Darmstadt, Germany

Holger Winkler