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 ?
More important though, in terms of the amount of metal used, are the jewellery and autocatalyst markets.
73 million ounces, driven by a return to positive net physical investment and higher autocatalyst purchasing, moving the palladium market into a deficit of 915,000 oz.
Gross demand for palladium in autocatalysts is expected to rise in line with higher gasoline vehicle output and greater use of the metal in light duty diesel emissions control systems, resulting in a modest increase in overall gross demand and pushing the market into a deficit.
Table 39: World Non-Road Mobile Machinery (NRMM) Autocatalysts Market (2012): Percentage Breakdown of Demand by PGM Type (includes corresponding Graph/Chart) II-41 Ceramic Oxide Catalysts - A Challenge to Precious Metals II-41 Research Activities Influencing the Market II-41 Developments in Catalyst Technology II-43 Other Significant Trends II-43
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.
Despite the downside risks, technology changes in light duty European autocatalysts and a return to full production levels in Japan will lead to higher autocatalyst demand.
Demand for PGMs comes mainly from autocatalysts used to decrease harmful emissions in vehicles.
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.
principal activities are the manufacture of autocatalysts, heavy duty diesel
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.
These uses which range from food packaging to radio frequency identification tags to autocatalysts, taken together could exceed 40 Moz of industrial demand by 2015.