Imperial Chemical Industries Limited

Ivan J Lake

John Leonello Casci

Timothy R Maberly

Thomas V Whittam

Mervyn D Shannon

Roy John Sampson

Alistair Chalmers Brown

Norman Andrew Dykes

John Kenneth January

A zeolite, designated NU-85, is an intergrowth of zeolites EU-1 and NU-87. The zeolite is a useful catalyst in a wide variety of hydrocarbon conversion reactions including isomerization and alkylation.

Zeolite NU-85 catalyst

A zeolite, designated NU-85, is an intergrowth of zeolites EU-1 and NU-87. The zeolite is a useful catalyst in a wide variety of hydrocarbon conversion reactions including isomerisation and alkylation.

Hydrocarbon conversion process using a specified zeolite

A catalyst comprising a novel zeolite NU-87, is useful in a wide variety of hydrocarbon conversion reactions including isomerisation, transalkylation and alkylation.

Catalytic reactions using zeolites

The process comprises isomerization, in the liquid or vapor phase, of a feed comprising a xylene or mixture of xylenes and optionally also containing up to 25% ethylbenzene using a catalyst comprising a novel crystalline aluminosilicate zeolite Nu-5.

Hydrocarbon conversion

The process comprises isomerization, in the liquid or vapour phase, of a feed comprising a xylene or mixture of xylenes and optionally also containing up to 25% ethylbenzene using a catalyst comprising a novel crystalline aluminosilicate zeolite Nu-6(2).

Aromatic hydrocarbons are alkylated in the presence of zeolite nu-1 as catalyst. The invention particularly relates to the production of xylene by the methylation of toluene at temperatures in the range 300.degree. to 600.degree. C, preferably in the range from about 450.degree. to 550.degree. C.

Production of alkylbenzenes

Isomerization of alkylbenzene hydrocarbons, for example xylenes, using a silica/alumina catalyst whose alumina content has been reduced by at least 1% of the original alumina content, from an original alumina content in the range 2 to 40% by weight to a content of at least 1% by weight.

Hydrocarbon conversion processes and catalysts

Catalysts which comprise silica are rendered less susceptible to physical damage during processing with aqueous liquids by pre-steaming them.

Growing community of inventors

Cleveland, United Kingdom

Ivan J Lake