Understanding Chemistry

 

CATALYSIS MENU

 

An introduction to types of catalysis . . .

Explains the difference between heterogeneous and homogeneous catalysis with examples of each. (Heterogeneous: hydrogenation of carbon-carbon double bonds, catalytic converters, vanadium(V) oxide in the Contact Process. Homogeneous: the reaction between persulphate ions and iodide ions, ozone destruction.) Also deals with an example of autocatalysis.

Examples of catalysis in the inorganic chemical industry . . .

Catalysts in the Contact Process, the Haber Process, and the conversion of ammonia into nitric acid.

Examples of catalysis in the petrochemical industry . . .

Examples of catalysts used in catalytic cracking, isomerisation and reforming.

Examples of acid catalysis in organic chemistry . . .

Examples of the use of acids as catalysts in organic chemistry. Includes the hydration of carbon-carbon double bonds to make alcohols, esterification and its reverse (the acid catalysed hydrolysis of esters), and the nitration of benzene.

Examples of other catalytic reactions in organic chemistry . . .

Includes the formation of epoxyethane from ethene, Friedel-Crafts reactions, and the halogenation of benzene.



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© Jim Clark 2002