autocatalysis

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autocatalysis

[¦ōd·ō·kə′tal·ə·səs]
(chemistry)
A catalytic reaction started by the products of a reaction that was itself catalytic.
References in periodicals archive ?
Looking forward, the auto industry's consumption of platinum will increase again in 2007, with use in autocatalysts on light and heavy duty diesel vehicles (larger trucks) responsible for most of the rise.
In 2013, gross platinum demand is expected to see modest growth, with steady autocatalyst demand and a recovery in industrial purchasing.
Although autocatalyst and industrial demand for palladium rose, the sale of metal from Russian government-controlled inventories, together with a large amount of metal released from ETFs, meant that the palladium market moved into oversupply last year.
This reversal of trend was almost completely attributable to supply side factors with refined metal outturn from the three major sources; mining, autocatalyst recycling and the recycling of old jewellery scrap contracting sharply last year, by 10 per cent, nine per cent and 19 per cent respectively.
Revenue in the core autocatalyst division rose 11pc in the 12 months once the impact of lower prices for platinum and palladium metals was stripped out.
The majority of North American vehicles continue to be equipped with platinum-based autocatalyst systems, and platinum demand wasn't to change much in 1997.
Johnson is thought likely to say that it has benefited from robust autocatalyst demand and high precious metal prices.
The world's autocatalyst demand is shown to have been 1.
Its autocatalyst business in Asia benefited from strong growth in the Chinese market where sales of cars and vans rose by 37 per cent in 2003.
The company said global vehicle sales had grown by just one per cent, but the autocatalyst market grew by around six per cent in the year, with tighter air pollution regulations in major markets like the US and Japan and moves by other countries to clamp down on noxious gases spewed out by vehicles.