johnson matthey gold serial number lookup

Since, the Johnson Matthey Gold Bar has become one of the world’s favorite gold bullion products. Ever since, Johnson Matthey bullion has come to be world-renowned for their quality and variety.

Johnson Matthey exploded onto the precious metals scene in 1946 after being approached by the British government to become the sole producers of all silver coins in the UK. The nearly 200-year old company employs some 10,000 people worldwide and their gold and silver bullion are highly valued in nearly every market. Unlike many precious metals bullion producers, Johnson Matthey is an incredibly diverse organization which has operations in such fields as automotives, medicine and pharmaceuticals, among others. Named after Percival Norton Johnson and George Matthey, the organization was founded in 1817 as a gold assaying company in London. These bars are produced by the British conglomerate Johnson Matthey. The Johnson Matthey gold bar is one of the most recognizable gold bullion bars in the world. These salts then undergo heat treatment to convert them to the final pure precious metal.Johnson Matthey Bars come in a very large variety of designs and sizes. It involves dissolution and a series of solvent extractions, evaporation, precipitation and filtration steps to produce highly pure salts for each PGM. The iron based bullion is also acid leached but follows a different chemical treatment route, given the different solubilities of the five PGMs that it contains.Ĭhemical separation is a highly complex multistage process that converts the five PGMs into their final product forms, commonly a PGM sponge. The silver based bullion is suspended in concentrated acid to slowly leach the silver, platinum and palladium into solution and separate out any gold, which is sent for further refining. The two bullion feeds then move to our chemical leaching plant where they undergo multiple leachings to further concentrate the PGMs into solution. Two types of bullion feed are produced: a silver based feed containing primarily platinum and palladium, and an iron based feed which contains all five of the PGMs. In this pyrometallurical process, material is melted at over 1200☌ for around 12 hours in large reverberatory furnaces to separate the non-metallic components. Once terms are agreed, feeds are combined together into much larger batches for smelting.

Material tracking is crucial on receipt all customer batches are uniquely barcoded to ensure full traceability during evaluation. At this stage we provide the lead time for refining. During this step we determine the PGM content of the material and agree with the customer on the PGM quantity or value we will return to them. Our refining process involves four key steps:Įvaluation is a critical stage.

Johnson matthey gold serial number lookup