Get Price And Support

  • Hightemperature cyanide leaching of platinumgroup metals ...

    The Bureau of Mines Reno Research Center operated a batch pilot plant to demonstrate hightemperature cyanide leaching or recovering platinum group metals (PGM) from automobile catalysts. Approximately 1,600 kg of used pellet, monolith, and metal support catalyst containing 1,700 g (54 tr oz ...

    Get Price
  • NIOSHTIC2 Publications Search 10011044 High ...

    The Bureau of Mines investigated leaching automobile catalysts with sodium cyanide (nacn) solutions at high temperatures to recover platinumgroup metals (PGM). The feed was monolith rejects, used monolith, and used pellet catalysts.

    Get Price
  • Hightemperature cyanide leaching of platinumgroup metals ...

    COVID19 Resources. Reliable information about the coronavirus (COVID19) is available from the World Health Organization (current situation, international travel).Numerous and frequentlyupdated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus ...

    Get Price
  • (PDF) Metals: Platinum Group Elements Recovery from Used ...

    Metals: Platinum Group Elements Recovery from Used Catalytic Converters by Acidic Fusion and Leaching Article (PDF Available) in Metals Open Access Metallurgy Journal 10(4) · …

    Get Price
  • Hydrometallurgical recovery/recycling of platinum by the ...

    Feb 01, 2013· The leaching kinetics followed the powerlaw rate with an activation energy for the platinum surface dissolution reaction of kJ/mol. This large value indicates that Pt extraction in aqua regia solution is controlled by surface chemical reactions.

    Get Price
  • HOW TO OBTAIN PLATINUM, PALLADIUM AND RHODİUM FROM ...

    Apr 25, 2010· Ceramic parts of catalytic converter are cut away from the exhaust. ... It is put into reaction with HCl in the leach tank, and platinum and palladium are …

    Get Price
  • Cyanide leaching method for recovering platinum group ...

    1. A method for recovering platinum group metal from a catalyst, comprising n (a) leaching a catalytic converter catalyst containing at least one platinum group metal selected from the group consisting of platinum, rhodium and palladium with a cyanide solution at a temperature greater than about C. to form soluble platinum group metalcyanide complexes in solution; n (b) removing ...

    Get Price
  • Recovering PlatinumGroup Metals in Catalytic Converters ...

    Oct 04, 2019· Platinum Group Metal Recovery from Spent Catalytic Converters Using meltet sodium hydroxide. Duration: 13:59. Chemistry games 3,285 views

    Get Price
  • Recovery Of Platinum From Chloride Leaching Solution Of

    palladium recovery at optimum leaching conditions were %, and %, respectively. Key words : Aqua regia, catalytic converter, PGMs, Platinum, Palladium, recovery, catalytic converter, 3HCl:HNO 3. Recovery of Platinum and Palladium from Scrap Automotive ...

    Get Price
  • Leaching Catalytic Platinum

    Cyanide leaching method for recovering platinum group ... Nov 03, 1992· What is claimed is: 1. A method for recovering platinum group metal from a catalyst, comprising (a) leaching a catalytic converter catalyst containing at least one platinum group metal selected from the group consisting of platinum, rhodium and palladium with a cyanide solution at a temperature greater than about 100° C ...

    Get Price
  • Recovery of Platinum and Palladium from Scrap Automotive ...

    In this study, leaching the powder sample of catalytic converter that contains platinum and palladium was conducted on the basis of the formation of chloro complexes platinum and palladium (PtCl62, PdCl42) with different concentrations in the acidic solution. The optimum conditions for leaching process are (time = 120 minutes, temperature

    Get Price
  • Behavior of Platinum Group Metals during Their ...

    the catalytic converters, bibliographic data suggest that the total content of these metals is up to 2000 ppm in the ... They are based on leaching spent automotive catalysts powder with several leaching agents in combination with oxidants. Hydrochloric acid is the most used leaching agent while nitric ... Behavior of Platinum Group Metals ...

    Get Price
  • “Platinum palladium recovery from Catalytic converters”

    “Platinum palladium recovery from Catalytic converters” A practical manual for first ... Every platinum mine in the world is at full blast, recycling has come into its own, and still the ... which would interfere with the leaching process that follows the grinding and roasting of your PGM bearing materials. ...

    Get Price
  • RECYCLING OF PLATINUM GROUP METALS FROM …

    catalytic converters. Hydrochloric acid in combination with hydrogen peroxide is used as leaching agent. This combination selectively dissolves the PGMs and the cerium, which can be recovered in separate steps. As the leaching solution is regenerated and reused, wastewater generation is minimized.

    Get Price
  • Cyanide Leaching Platinum Catalytic Converter Chemistry

    Previous research by the Bureau of Mines showed that autoclave cyanide leaching of used automobile exhaust catalysts for recovery of platinum group metals (PGM) was technically feasible. This work involves a more detailed investigation of the chemistry of …

    Get Price
  • The Role of Platinum in Proton Exchange Membrane Fuel ...

    Proton exchange membrane fuel cells (PEMFCs) dominate the transportation fuel cell market and platinum (Pt) is the catalyst material used for both anode and cathode. This review sets out the fundamentals of activity, selectivity, stability and poisoning resistance which make Pt or its alloys the best available materials to use in this application. It is clear that Pt is the only element which ...

    Get Price
  • PAPER OPEN ACCESS Simultaneous leaching of Pt, Pd and Rh ...

    Simultaneous leaching of Pt, Pd and Rh from automotive catalytic converters in chloridecontaining solutions M Hasani1, A Khodadadi1, S M J Koleini1, A H Saeedi1 and A M Meléndez2 1 Tarbiat Modares University, Tehran, Iran 2 Universidad Industrial de Santander, CMN, Piedecuesta, Santander, Colombia Email: akdarban , amelende

    Get Price
  • Recovery and Then Individual Separation of Platinum ...

    Recovery of PGMs (especially rhodium, platinum, and palladium) from different spent manufactured products (like catalytic converters) is considered as an important task as they are rarely found in nature, and they possess high economic value. In this work, the honeycomb of a car catalytic converter was primarily processed by crushing, grinding, and then treating in a hydrogen atmosphere.

    Get Price
  • HighTemperature Cyanide Leaching of PlatinumGroup Metals ...

    HighTemperature Cyanide Leaching of PlatiumGroup Metals From Automobile Catalysts. Bureau of Mines 1992. Report of Investigations RI 9428. Platinum and its sister metals are in high demand and found only in a few deposits around the world. The Auto industry relies heavily on them in the use of Catalytic converters for exhaust systems.

    Get Price
  • HighTemperature Cyanide Leaching of PlatinumGroup Metals ...

    The Bureau of Mines Reno Research Center operated a batch pilot plant to demonstrate hightemperature cyanide leaching or recovering platinum group metals (PGM) from automobile catalysts. Approximately 1,600 kg of used pellet, monolith, and metal support catalyst containing 1,700 g (54 tr oz) of PGM were processed.

    Get Price
  • Journal of Physics: Conference Series PAPER OPEN ACCESS ...

    Platinum leaching from automotive catalytic converters with aqua regia M Hasani1, A Khodadadi1, S M J Koleini1, A H Saeedi1, Y PérezPacheco2 and A M Meléndez2, 1 Tarbiat Modares University, Tehran, Iran 2 Universidad Industrial de Santander, CMN, Piedecuesta, Santander, Colombia Email: akdarban Abstract. Herein, kinetics extraction of platinum from spent auto catalysts, …

    Get Price
  • STUDIES ON PLATINUM RECOVERY FROM SOLUTIONS …

    keywords: platinum, spent catalyst, leaching, solvent extraction 1. Introduction Spent catalysts from automobile industry contain a number of important nonferrous metals such as platinum (Pt), palladium (Pd), nickel (Ni), iron (Fe) and manganese (Mn). Platinum exhibits excellent catalytic activity, therefore platinum is also used in

    Get Price
  • How Is Platinum Extracted From a Catalytic Converter? | It ...

    The platinum normally flakes off in small pieces or nuggets. As each piece is chipped off, it can be set aside and placed on a clean towel or rag. Complete platinum removal from the converter catalyst material should take 30 to 45 minutes for a standardsized catalytic converter.

    Get Price
  • Towards environmentally safe recovery of platinum from ...

    For leaching platinum in 1000 mg catalytic converter powder, 10 mL of aqua regia and HClH 2O 2 solutions were employed. Four different agitation rates, increasing from 200 rpm to 500 rpm in steps of 100 rpm, were tested. After 60 min of dissolution, the solution was filtered and the platinum content was measured by ICP86

    Get Price
  • Catalysis in Polysiloxane Gels: PlatinumCatalyzed ...

    Novel polysiloxane gels, to which platinum species are encapsulated, are prepared by treatment of polymethylhydrosiloxane with alkenes in the presence of Karstedt’s catalyst. These gels act as reusable catalysts in the reduction of functionalized nitroarenes with H2 to the corresponding substituted anilines without leaking the catalyst species.

    Get Price
  • Recovery and Then Individual Separation of Platinum ...

    Apr 12, 2019· where m 0 (g/t) is the mass of spent catalysts after distillation and c 0 (g/t) is the concentration of Pd in spent catalysts; c 1 (mg/L) is the concentration of Pd in the leachate; v 1 (mL) is the volume of leachate.. Xray diffraction (XRD, Rigaku D/max2550 V) was performed on the spent catalysts before and after distillation pretreatment, using Cu K α1 radiation at an operating voltage ...

    Get Price
  • How to Recover Platinum from Catalytic Converters: 5 Easy Tips

    In this case, platinum and its PGM brothers or platinumgroup metals (iridium, palladium, osmium, ruthenium, rhodium), act as the catalysts in breaking down air pollutants to gases that are nonhazardous. In many catalytic converters, the combination of platinum, …

    Get Price
  • EnviroLeach to License Technology to Recycle Catalytic ...

    The catalytic converter in a typical automobile or small truck contains 2 to 12 grams of palladium and an equal amount of platinum. Previous test work on catalytic converter materials by ...

    Get Price
  • (PDF) Removal of platinum group metals from the used auto ...

    In this study, leaching the powder sample of catalytic converter that contains platinum and palladium was conducted on the basis of the formation of chloro complexes platinum and palladium (PtCl62 ...

    Get Price
  • Platinum recycling going green via induced surface ...

    Oct 21, 2016· Platinum, as one of the most active and stable materials, is nowadays largely used as catalyst in automotive catalytic converters for purification of exhaust gases, in petrochemical industry for ...

    Get Price
  • Selective and Preferential Separation of Rhodium (III ...

    Aug 27, 2019· An ionexchange method for selective separation of palladium, platinum and rhodium from solutions obtained by leaching automotive catalytic converters. Talanta 42 , 249–255 (1995).

    Get Price
  • Recovery of platinum group metal value via potassium ...

    Oct 01, 2015· Platinum black electrodes were produced using 1inch platinum quartz monitor crystals (Inficon 1492401) as the substrate using a method adapted from literature (Feltham and Spiro, 1971, Feltham and Spiro, 1972, Ilic et al., 2000).The crystals used in this study were manufactured for use at 90 °C, and have a resonant frequency of 5 MHz.

    Get Price