mining patent platinum recovery

  • Method of platinum recovery Nippon Mining & Metals

    The method of platinum recovery according to the invention comprises: the first neutralization step in which a neutralizing reagent is added to a solution of chloroplatinic acid containing impurities to adjust the pH value of the solution to 5.5-7.0;

  • Platinum group metal recovery with a polyamine Johnson

    This invention concerns improvements in refining, more especially it concerns improvements in the recovery of certain platinum group metals such as rhodium from solution. It is known that platinum group metals ("PGM's") may be separated by solvent extraction and selective precipitation.

  • Platinum Group Metals remains focused on Waterberg

    1/14/2021· Platinum Group Metals is focused on advancing the palladium dominant Waterberg Project located on the Northern Limb of the Bushveld Complex in South Africa. The Waterberg Project is planned as a fully mechanised, shallow, decline access palladium, platinum, gold and rhodium (4E) mine and is projected to be one of the largest and lowest cost underground platinum group metals (PGMs) mines

  • The extractive metallurgy of south africa’s platinum ores

    10/1/2001· “The Recovery of Platinum-Group Metals from Ore of the UGZ Reef in the Bushveld Complex” (Johannesburg: South African Institute of Mining and Metallurgy), p. 629. 9. R.A. Snodgrass, M.P. Hay, and P.J. DuPreez, “Process Development and Design of the Northam Merensky Concentrator,” XVth CMMI Congress, Johannesburg (Johannesburg: South African Institute of Mining and

  • Platinum Group Metals Archives Canadian Mining

    PGM: Generation Mining increases metal recovery projections for Marathon August 20, 2020 by Canadian Mining Journal ONTARIO Generation Mining has increased its platinum group metals (PGM) and copper recovery projections for the Marathon deposit in northwestern Ontario, which will be incorporated into an upcoming feasibility study for the project.

  • US3650925A Recovery of metals from solution Google

    The recovery solution contained 2,000,000 micro grams of mercury per liter. EXAMPLE IV Mercury was recovered from brine using a cell substantially like cell 110. The cell included a cathode having an outside diameter of 65/s inches and an overall length of 36 inches.

  • WO2015056201A1 Pillar extraction mining method

    Disclosed is a method of mining or extracting a support pillar from an underground room and pillar mining operation which includes forming (by eg forming top and bottom wedge shaped cuts) at least one removable segment in a pillar (7) and moving (eg pulling) the segment substantially intact from its original location (10A) to a mining position (10C) distal from its original location, operatively from where the

  • New process opens way for full-spectrum platinum

    After graduating from Birmingham University in 1981 with a degree in minerals engineering, Liddell joined Mintek and two weeks later found himself optimising flotation recovery at Western Platinum

  • Mark RAPKOCH Inventions, Patents and Patent

    Patent number: 9347113 Abstract: Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.

  • Sedibelo Platinum Mines closer to finding Mining Weekly

    After graduating from Birmingham University in 1981 with a degree in minerals engineering, Liddell joined Mintek and two weeks later found himself optimising flotation recovery at Western Platinum

  • US3650925A Recovery of metals from solution Google

    disclosed is a method for removing metal ions from a solution containing trace amounts of the metal. the solution is passed through an electrolytic cell having a porous cathode. metal ions from the solution are electrolytically deposited in the porous cathode as the solution passes through the porous cathode. the metal or metals are then separated from the porous cathode.

  • Recovery of platinum group metals from spent

    12/10/2015· A Chinese patent (Wu and Zhou, 1991) indicated that a Pd/C catalyst was burned at 900–1000 °C, the burned ash was leached by water and hydrazine hydrate solution at 100 °C for 30 min, the final Pd recovery was over 95% by subsequent aqua regia dissolution and ammonium hydroxide precipitation purification process.

  • Platinum group metal recovery with a polyamine

    Platinum group metal recovery with a polyamine . United States Patent 5165901 . Abstract: Rhodium and certain other PGM's in oxidation state III complex with chloride is precipitated from a solution by mixing with a polyamine, especially diethylene-triamine, in the presence of a protonating agent for the polyamine. The feedstock to such

  • New process opens way for full-spectrum platinum

    Kell recovers 99%-plus of the platinum and 98% of the remaining PGMs, as well as the base metals. Liddell patented Kell the letters that make up his initials as a smelting alternative in

  • The extractive metallurgy of south africa’s platinum

    “The Recovery of Platinum-Group Metals from Ore of the UGZ Reef in the Bushveld Complex” (Johannesburg: South African Institute of Mining and Metallurgy), p. 629. 9. R.A. Snodgrass, M.P. Hay, and P.J. DuPreez, “Process Development and Design of the Northam Merensky Concentrator,” XVth CMMI Congress, Johannesburg (Johannesburg: South

  • Platinum Group Metals Archives Canadian Mining

    August 20, 2020 by Canadian Mining Journal . ONTARIO Generation Mining has increased its platinum group metals (PGM) and copper recovery projections for the Marathon deposit in northwestern Ontario, which will be incorporated into an upcoming feasibility study for the project.

  • Platinum Group Metals Ltd. Reports 2020 Annual Results

    On September 14, 2020, the Company reported the U.S. Patent and Trademark Office had issued Patent No. 10,734,636 B2 entitled "Battery Cathodes for Improved Stability" to FIU. The patent

  • All Green Precious Metal Recovery

    ALL GREEN's Precious Metals Recovery and Refinery operations will operate as a newly formed division and will be independently operated from All Green Recycling, Inc. AGR has developed its own intellectual property (IP); patent pending technology, which extracts the valuable commodities (e.g. gold, silver, palladium, platinum and copper). In

  • Metallurgical recovery of metals from electronic waste:

    10/30/2008· After the treatment in a plasma arc for 15 min, platinum and palladium were recovered with recovery of 80.3% and 94.2%, respectively. Patent by Aleksandrovich et al. [44] described a method for recovery of PGM and gold from electronic scraps.

  • Orbite Technologies research finds gold recovery from

    The company also filed a provisional patent application titled ‘Processes for Recovering Noble Metals from Various Materials’ for this process. Orbite CEO Glenn Kelly said: "In the analysis of multiple feedstocks, we identified gold concentrations that, if extractable, can significantly increase the potential value of fly ash when processed