leaching catalytic platinum 5299

  • The Leaching Process for Catalytic Converter Material ...

    The Leaching Process for Catalytic Converter Material. 2 Manuals and Two Instructional DVD's. by. Action Mining. Video - The Leaching Process for Catalytic converter Material President, Mike Glenn, shares his 25 years of in-house processing experience, discussing the …

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

    and yes, they go the catalytic converters. Extracting Platinum from Catalytic Converters. For those who seek to have a piece of this special metal, look no further than your CCs. There are several methods for how to recover platinum from catalytic converters, and other metals, too.

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

    The leaching experiments were designed to obtain the optimum conditions by using Taguchi method with 16 experiments at three different factors (time, temperature and solid to liquid ratio), and each factor has four different levels. In this study, leaching the powder sample of catalytic converter that contains platinum and palladium was

  • STUDIES ON PLATINUM RECOVERY FROM SOLUTIONS AFTER …

    Studies on platinum recovery from solutions after leaching of spent catalysts by solvent extraction 241 supplier of platinum, accounting for roughly 10%. Platinum production capacity is estimated to grow to approximately 0.281 gigagram (Gg) in 2010 from about 0.192 Gg in 2002. Before 1999, supply and demand were largely balanced and prices were

  • High-temperature cyanide leaching of platinum-group metals ...

    The U.S. Bureau of Mines investigated leaching automobile catalysts with sodium cyanide (nacn) solutions at high temperatures to recover platinum-group metals (PGM). The feed was monolith rejects, used monolith, and used pellet catalysts. Leaching with a …

  • Recovery of Nickel from Spent Ni/Al2O3 Catalysts using ...

    concern in the practice of industrial catalytic processes. It is a result of a number of unwanted chemical and physical changes. The supported catalysts use the alumina, zeolites, carbon, silica, zirconia, clay materials as support with catalytic metals such as nickel, platinum, palladium,

  • EnviroLeach Achieves over 90% Palladium Recovery from ...

    EnviroLeach Achieves over 90% Palladium Recovery from Catalytic Converters Vancouver, BC, March 18, 2019 - EnviroLeach Technologies Inc. (the “Company “or “EnviroLeach”), ... Further internal testing is planned to optimize the chemistry and leach conditions. Validation work ... shortage of platinum averaged 346,600 ounces annually ...

  • Scrap Catalytic Converter Recycling - YouTube

    Apr 01, 2014· Recycling Catalytic Converters Nationwide,Scrap Catalytic Converter Buyers Nationwide, Buyers Of Scrap Catalytic Converters Nationwide, Scrap Catalytic Converter Catalog Nationwide, Selling Scrap ...

  • Platinum and Rhodium Recovery from Scrapped Automotive ...

    Platinum and Rhodium Recovery from Scrapped Automotive Catalyst by Oxidative Acid Chloride Leaching. A thesis submitted ta the Faculty of Gradua~e Studies and Research in partial fulfilment of the requirements ... catalytic converters, the autocatalyst scrap is the largest and constantly growing source of PGM available for

  • High-temperature cyanide leaching of platinum-group metals ...

    The U.S. Bureau of Mines Reno Research Center operated a batch pilot plant to demonstrate high-temperature 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 ...

  • Platinum extraction from a Catalytic Converter. - YouTube

    Apr 12, 2018· How to make gold 24k. Teach process gold refining 99.99%. tips refine gold scrap fine gold recovery. - Duration: 18:39. Archimedes Channel 775,442 views

  • Cyanide leaching chemistry of platinum-group metals.

    Previous research by the U.S. Bureau of Mines has shown that autoclave cyanide leaching of used automobiles exhaust catalysts for recovery of platinum group metals (PGM) is technically feasible. The purpose of this work was to investigate the chemistry of the dissolution of PGM in cyanide solutions ...

  • Recovering Platinum-Group Metals in Catalytic Converters

    Develop new technology to encourage domestic processing of automobile catalytic converters for recovering platinum-group metals. Background Automobile catalytic converters are used to convert pollutants in automobile exhaust into water vapor, carbon dioxide, and nitrogen. About 1 million troy ounces of platinum-group metals arc used each year in the United States to manufacture catalytic ...

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

    Hydrometallurgical recovery/recycling of platinum by the leaching of spent catalysts: A review ... This paper reviews platinum leaching from such resources using acidic and alkaline solutions in ...

  • 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. to form soluble platinum group metal-cyanide complexes in …

  • RECYCLING OF PLATINUM GROUP METALS FROM …

    Platinum 2012 695 R. Rumpold, J. Antrekowitsch RECYCLING OF PLATINUM GROUP METALS FROM AUTOMOTIVE CATALYSTS BY AN ACIDIC LEACHING PROCESS R. Rumpold University of Leoben J. Antrekowitsch University of Leoben Abstract The platinum group metals (PGMs) palladium, platinum, and rhodium represent the key

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

    In order to extract the platinum from within a catalytic converter, the converter must be removed completely from the vehicle. Most catalytic converters simply bolt on to a vehicle's exhaust system with a series of threaded bolts.

  • Cyanide leaching chemistry of platinum-group metals ...

    Previous research by the U.S. Bureau of Mines has shown that autoclave cyanide leaching of used automobiles exhaust catalysts for recovery of platinum group metals (PGM) is technically feasible. The purpose of this work was to investigate the chemistry of the dissolution of PGM in cyanide solutions ...

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

    Hydrometallurgical recovery/recycling of platinum by the leaching of spent catalysts: A review ... This paper reviews platinum leaching from such resources using acidic and alkaline solutions in the presence of oxidizing agents, such as nitric acid and hydrogen peroxide, sodium cyanide and iodide solutions. ... K.N. HanRecovery of platinum and ...

  • Recovery of Platinum Group Metals from Spent Automotive ...

    RECOVERY OF PLATINUM GROUP METALS FROM SPENT AUTOMOTIVE CATALYST ... ABSTRACT A special treatment of platinum group metals (PGMs) leaching from spent automotive catalyst is shown in this paper. Leaching of crushing and grinding automotive catalyst scrap in hydrochloric ... leaching of PGMs is obtained by this process and catalytic substrate ...

  • Catalytic Effect of Silver on Bioleaching of Arsenopyrite

    After bacterial leaching in a shake flask for 20 days, the copper leaching rates were increased from 25% (without catalyzer) to 75 %, 65 %, and 67%,respectively. Muñoz et al. [10]-[12] investigated the catalytic effect of Ag+ on the shake flask leaching, stirred reactor leaching, and column

  • Catalytic converter - GoldRefiningWiki

    Catalytic converters are a device used in cars and on other engines to cut down emissions. They are made up of a catalyst sprayed onto a ceramic wash coat on a ceramic or stainless steel substrate. The catalyst contains various amounts of platinum, palladium and rhodium.For the hobby refiner it is possible to leach the metals and extract it but when compared with selling the to a buyer the ...

  • WLF Hydrometallurgical Gold Leaching in the ...

    Platinum leaching from automotive catalytic converters with aqua regia M Hasani1, A Khodadadi1, S M J Koleini1, A H Saeedi1, Y Pérez-Pacheco2 and A M Meléndez2, 1 Tarbiat Modares University, Tehran, Iran 2 Universidad Industrial de Santander, CMN, Piedecuesta, Santander, Colombia E-mail: [email protected] Abstract. Herein, kinetics extraction of platinum from spent auto catalysts, …

  • Heterogeneous Catalytic Hydrogenation | Johnson Matthey ...

    Activity and selectivity are greatly dependent on the choice of metal. This influences the strength of adsorption of reactants, the rate of desorption of reaction products and the rate of chemical transformations. The metals most frequently used in heterogeneous catalytic hydrogenation are palladium, platinum, rhodium, nickel, cobalt and ruthenium.

  • Catalyst support - Wikipedia

    In chemistry, a catalyst support is the material, usually a solid with a high surface area, to which a catalyst is affixed. The activity of heterogeneous catalysts and nanomaterial-based catalysts occurs at the surface atoms. Consequently, great effort is made to maximize the surface area of a catalyst by distributing it over the support.

  • Basic Platinum Recovery from Catalytic Converters - Gold ...

    Mar 29, 2016· lazersteve's DVD titled "Platinum & Palladium Fundamentals" has been very valuable - I have watched it over & over for the last 3 or 4 weeks. I have 10 more cats (12 if you count the 2 metal foil cats I have not touched) and about 17 pounds of catalytic beads waiting to be processed. Thanks! - …

  • Towards environmentally safe recovery of platinum from ...

    For leaching platinum in 1000 mg catalytic converter powder, 10 mL of aqua regia and HCl-H 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 ICP-86

  • High-temperature cyanide leaching of platinum-group metals ...

    Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

  • Leaching of platinum group metals (PGMs) from spent ...

    Request PDF on ResearchGate | Leaching of platinum group metals (PGMs) from spent automotive catalyst using electro-generated chlorine in HCl solution | Background In order to conserve resources ...

  • US7067090B2 - Recovery of platinum group metals - Google ...

    This invention relates to the recovery of platinum group metals and, more particularly, to the recovery of platinum group metals from various sources by roasting the source material with one or more of sulfuric acid, a sulfate and/or a bi-sulfate and with one or more halogen salt. The roasted product is put in contact with a leaching solution to dissolve at least a portion of the platinum ...

  • Recovery of Platinum from Chloride Leaching Solution of ...

    Recovery of Platinum from Chloride Leaching Solution of Spent Catalysts by Solvent Extraction Pan Pan Sun and Man Seung Lee+ Department of Advanced Materials Science & Engineering, Mokpo National University, Chonnam 534-729, Korea Platinum was recovered from the leaching liquor of spent petroleum catalyst by solvent extraction.

  • Pt and Rh Recovery from Waste: Catalytic Converters

    The research was conducted to determine optimum conditions to recover precious metals from auto catalytic converter. The catalytic converters used in this study contained Pt and Rh. The recovery process involved leaching, solvent extraction process, stripping. Hydrochloric acid was used to leach the metals from the catalytic converters.

  • 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 ...