autocatalysis

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autocatalysis

 [aw″to-kah-tal´ĭ-sis]
an increase in the rate of a chemical reaction in which a product of the reaction itself hastens or intensifies the rate.

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis),
A reaction in which one or more of the products acts to catalyze the reaction; after beginning slowly, the rate of such a reaction rapidly increases. Compare: chain reaction.
Synonym(s): autoactivation

autocatalysis

/au·to·ca·tal·y·sis/ (-kah-tal´ĭ-sis) catalysis in which a product of the reaction hastens the catalysis.

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis)
A reaction in which one or more of the products formed acts to catalyze the reaction; beginning slowly, the rate of such a reaction rapidly increases.
Compare: chain reaction

autocatalysis

catalysis in which a product of the reaction hastens or intensifies the catalysis.
References in periodicals archive ?
The autocatalyst market, the largest segment, grew by over 10 per cent, mainly due to the fitment of emission controls to light and heavy duty diesel vehicles.
In 2013, gross platinum demand is expected to see modest growth, with steady autocatalyst demand and a recovery in industrial purchasing.
Gross demand for palladium in autocatalysts reached record levels in 2011 of 187.
While the group, which is a leading producer of autocatalysts for the automotive industry, warned that it would be hit in the second half by falling global car sales, process technologies, based at Billingham and Stockton, had benefited from tightening environmental legislation.
Platinum is used in autocatalysts to filter out carbon monoxide and particulates.
For years, erratic shipments of PGMs, used mainly in autocatalysts to cleanse car exhaust fumes, have created market instability.
The Cinderford operation serves as BASF s European production hub for processing end-of-life autocatalysts, allowing for the efficient recovery and recycling of platinum group metals (PGMs) such as platinum, palladium and rhodium.
The metal's use in autocatalysts (which accounted for close to two thirds of overall offtake) rose by nine per cent as a function of growing vehicle sales, particularly as a result of emerging markets' demand for light duty gasoline units, as well as palladium benefitting from continued penetration in diesel applications, at the expense of platinum.
A heavier loading of platinum is used in the diesel autocatalysts most commonly seen in Europe, while the petrol engines favoured in the United States and China carry a heavier loading of palladium.
Speciality chemicals company Johnson Matthey ( a leading manufacturer of autocatalysts and pollution control systems ( should post an improvement in annual profits on Thursday, despite the impact of a weak dollar.
Speciality chemicals company Johnson Matthey - a leading manufacturer of autocatalysts and pollution control systems - should post an improvement in annual profits on Thursday, despite the impact of a weak dollar.
In addition to processing Stillwater Mining concentrates, the smelter processed more than 2 st/d of spent autocatalysts containing 29.