Abstract: A method of selectively extracting rhodium from an aqueous hydrochloric acid solution comprising rhodium and iridium, the method comprising: mixing a first aqueous hydrochloric acid solution comprising rhodium and iridium with an immiscible organic solution comprising a first organic solvent and an extractant system which selectively extracts the rhodium into the organic solution, wherein the first aqueous hydrochloric acid solution has a hydrochloric acid concentration in a range 2 M to 7 M; separating the organic solution comprising the rhodium from the first aqueous hydrochloric acid solution; mixing the separated organic solution with an aqueous stripping solution in order to strip the rhodium from the organic solution into the aqueous stripping solution; separating the organic solution from the aqueous stripping solution; and re-using the organic solution for further extraction of rhodium.

Abstract: A method of manufacturing a catalyst article, the method comprising: providing an anionic complex comprising a PGM and a carboxylate ion; providing a support material; applying the anionic complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.

Abstract: A method is described for recycling nickel from waste battery material. The method includes providing waste battery material comprising a nickel-containing oxide, reducing the nickel in the waste battery material to the zero oxidation state to provide a reduced waste battery material, reacting the reduced waste battery material with carbon monoxide to form Ni(CO)4, and reacting the Ni(CO)4 with a source of sulfate to form NiSO4. The NiSO4 product is useful as a nickel feedstock in various processes which require a nickel source, including processes which prepare new battery materials.

Abstract: A method of manufacturing a catalyst article, the method comprising: providing an anionic complex comprising a PGM and a carboxylate ion; providing a support material; applying the anionic complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.

Abstract: The invention identifies and describes proteins that are differentially expressed in platelets resistant to anti-platelet agents such as aspirin (acetylsalicyclic acid) compared to those platelets that are sensitive to such agents. Methods for determining further such differentially expressed proteins and methods for determining an individual's sensitivity to anti-platelet agents, such as aspirin, prior to administration.