2 edition of Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes found in the catalog.
Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes
Harold Fritz McDuffie
by Dept. of Energy, Oak Ridge National Laboratory, for sale by the National Technical Information Service] in Oak Ridge, Tenn, [Springfield, Va
Written in English
|Statement||H. F. McDuffie|
|Series||ORNL/TM ; 6654|
|Contributions||Oak Ridge National Laboratory|
|The Physical Object|
|Pagination||v, 23 p. ;|
|Number of Pages||23|
allofthethreemetals,palladium,rhodium,seduponthe complete precipitationof thehydrated dioxidesof palladium,rhodium, and iridium in a boilingsolution containing sodiumbromateand havingan acidityof pH Size: 1MB. Activated carbon-supported palladium catalysts are liable to progressive deactivation even in the absence of any gaseous contaminants during the oxidation of hydrogen under ambient conditions. The high value of palladium coupled with environmental considerations means that new, efficient and cost effective methods for the quantitative recovery of palladium from such materials are required.
Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes Technical Report McDuffie, H. F. A possible method for recovering significant quantities of nonradioactive palladium from fission-product wastes requires essentially complete separation of the fission-product (radioactive) palladium from fission-product ruthenium. A method for recovering palladium and technetium values from nuclear fuel reprocessing waste solutions containing these and other values by contacting the waste solution with an extractant of tricaprylmethylammonium nitrate in an inert hydrocarbon diluent which extracts the palladium and technetium values from the waste solution. The palladium and technetium values are recovered from Cited by:
The U.S. Department of Energy's Office of Scientific and Technical Information. Abstract. To separate platinum group metals (PGMs) from high level liquid waste (HLLW), a novel silica-based (Crea + TOA)/SiO 2 –P adsorbent was synthesized by impregnating Crea (N′,N′-di-n-hexyl-thiodiglycolamide) and TOA (trioctylamine) two extractants into the macroporous SiO 2 –P support with a mean diameter of 60 μm. Adsorption properties and behavior of PGMs from Cited by:
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Technical Report: Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes Title: Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes.
Get this from a library. Recovery of nonradioactive palladium and rhodium from high-level radioactive wastes. [Harold Fritz McDuffie; Oak Ridge National Laboratory.].
Experiments have demonstrated the technical feasibility of a process heat that could be used to recover over kg per year of nonradioactive palladium and rhodium each from radioactive nuclear waste. The method is based on an essentially complete removal of ruthenium from the radioactive palladium and rhodium.
Feasibility of Separation and Utilization of Ruthenium, Rhodium and Palladium from High Level Wastes This report is intended mainly to provide a basis for further consideration of the options for platinum group metal recovery from high level radioactive wastes, and for the formulation of appropriate strategies.
Contents: 1. Introduction; 2. Introduction. Palladium, platinum, rhodium and ruthenium, together with iridium and osmium, are called platinum group elements (PGEs). These elements have a wide variety of applications in automobile, chemical, electrical, and medical industries (Cowley, ).For example, Pd, Pt and Rh are most commonly used in catalytic converters of by: Radioactive high-level liquid wastes contain significant quantities of platinum group metals (PGM) such as palladium [Pd(II)], rhodium [Rh(III)] and ruthenium [Ru(III)].
The PGM are produced as. (). Ion Exchange Characteristics of Palladium and Rhodium from a Simulated Radioactive Liquid Waste.
Journal of Nuclear Science and Technology: Vol. 37, No. 3, pp. Cited by: Radioactive high-level liquid wastes contain significant quantities of platinum group metals (PGM) such as palladium [Pd(II)], rhodium [Rh(III)] and ruthen The PGM are produced as fission products in a nuclear by: Palladium recourses in E waste: There are many components of e waste have a good quantity of palladium.
Mlcc capacitor is one of them. Mlcc capacitors have a large quantity of palladium and silver. We can also recover palladium from catalytic converters.
We can also recover palladium from telecommunication systems. ELSEVIER Separation and Purification Technology 12 () Separation Purification Technology Recovery of platinum, palladium and rhodium from industrial process leaching solutions by reactive extraction C.
Nowottny a, W. Halwachs b, K. Scherl * a W. C Heraeus GmbH, Hanau, Germany b Halwachs Edelmetallchemie and Verfahrenstechnik, Rhstr.D Gelnhausen, Cited by: The present invention relates to an improved process for the recovery of palladium from spent catalyst.
The present invention particularly relates to a suitable method of catalyst recovery of precious metals from spent catalysts or inorganic waste and more specifically the process concerns with the recovery of palladium that is anchored on carbon and is used as catalyst for the hydrogenation Cited by: The separation conditions, thus, developed were validated by applying the scheme to a catalyst standard (NIST SRM).
The developed method has been extended for the recovery of platinum, palladium and rhodium from spent Pt–Rh thermocouple wire, coated ceramic honeycomb and palladium coated alumina catalyst. Experimental Cited by: The objective of this study was to investigate the applicability and performance of the selected ion exchangers with different physicochemical characteristics and functional groups to simultaneously recover three different platinum group elements (PGE), platinum(IV), palladium(II) and rhodium(III), present in a chloride solution produced by the leaching of spent automotive by: Recovery of palladium, platinum, rhodium and ruthenium from catalyst materials using microwave-assisted leaching and cloud point extraction Author links open overlay panel Terhi Suoranta a Oihane Zugazua a b Matti Niemelä a Paavo Perämäki aCited by: Aiming the selective recovery of palladium from high level radioactive liquid waste (HLW), a chelating thiamide type sorbent, CWP–TU, was prepared by the modification of Japanese cedar wood powder (CWP).
Convection oven and microwave heating were separately used for modification purpose and found that microwave heating is more effective over oven by: Radioactive high-level liquid wastes originating from reprocessing spent nuclear fuel can be a valuable source of platinum metals. The recovery of fission palladium and rhodium is of particular interest and is being investigated worldwide.
The radioactivity of fission platinoids is reduced to a non-hazardous level after decontamination from other fission products by a factor of Palladium & Rhodium Refining & Recovery | Arch Enterprises.
Other than platinum; palladium and rhodium are the most common platinum group metals and their values make them essential for refining and recovery.
Unfortunately, refining these metals can be difficult to perform without the proper equipment and trained personnel. in a method for recovering palladium, technetium, and rhodium and ruthenium values from an aqueous acid feed solution containing these and other values and from each other comprising: contacting the feed solution with a first bed of carbon, said bed having absorbed thereon dimethylglyoxime, whereby only the palladium is chelated and is retained on the first bed, contacting the feed solution Cited by: The Use of Metal Scavengers for Recovery of Palladium Catalyst from Solution Introduction Cross-coupling reactions are among the most impor-tant chemical processes in the fine chemical and phar-maceutical used procedures such as the Heck, Suzuki and Sonogashira cross-coupling reactions and Buckwald-Hartwig aminations most.
How to platinum,Palladium,rhodium metals precipitate from aqua regia. How to platinum,Palladium,rhodium metals precipitate from aqua regia. Sodium borohydride. 💠Palladium. A method of recovering cesium and palladium values from nuclear reactor fission product waste solution involves contacting the solution with a source of chloride ions and oxidizing palladium ions present in the solution to precipitate cesium and palladium as Cs 2 PdCl by: 5.Smith, F J.
and Mcduffie, H. F, “Recovery of Nonradioactive Palladium and Rhodium from Radioactive Waste,”Sep. Sci. Technol,16(9), (). CrossRef Google Scholar Wei, Y Z., Kumagi, M. and Takashima, “Adsorption and Elution Behavior of Platinum Group Metals in Nitric Acid Medium,” Proceeding of IEX ’96,Royal Society of Cited by: Title: Ion Exchange Characteristics of Palladium and Rhodium from a Simulated Radioactive Liquid Waste Created Date: 4/13/ AMCited by: