Patent · US Expired

Process for the preparation of alkylaryl compounds and sulfonates thereof

US7566799B2 · kind B2 · utility

6Cited by

5References

3Claims

0Family size

Assignee

BASF SE

Inventors

Ulrich Steinbrenner · Kohlhof, DE
Thomas Heidemann · Viernheim, DE
Goetz-Peter Schindler · Mannheim, DE
Juergen Stephan · Mannheim, DE
Heiko Maas · Mannheim, DE

Key dates

Filing date	Oct 1, 2002
Grant date	Jul 28, 2009
Priority date	—
Expiry date	Apr 20, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C309/31
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The preparation of alkylaryl compounds takes place, inter alia, by a1) preparation of a C4 -olefin mixture from LPG, LNG or MTO streams, b 1) reaction of the C4-olefin mixture obtained in this way over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene, c1) dimerization of the 2-pentane and/or 3-hexene obtained in stage b1) over a dimerization catalyst to give a mixture comprising C10-12-olefins, and optional removal of the C10-12- olefins, d1) reaction of the C10-12-olefin mixtures obtained in stage a1) with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkylaromatic compounds, it being possible to add additional linear olefins prior to the reaction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.