| (19) |
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(11) |
EP 1 698 680 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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17.01.2007 Bulletin 2007/03 |
| (43) |
Date of publication A2: |
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06.09.2006 Bulletin 2006/36 |
| (22) |
Date of filing: 15.02.2002 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
| (30) |
Priority: |
15.02.2001 US 269064
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| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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02724171.0 / 1360262 |
| (71) |
Applicant: SHELL INTERNATIONAL RESEARCH
MAATSCHAPPIJ B.V. |
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2596 HR Den Haag (NL) |
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| (72) |
Inventors: |
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- Ayoub, Paul, Marie
Houston, TX 77095 (US)
- Fenouil, Laurent, Alain
Houston TX 7702-4901 (US)
- Murray, Brendan, Dermot
Houston, TX 77077 (US)
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| (54) |
A process for preparing (branched-alkyl) arylsulphonates and a (branched-alkyl) arylsulphonate
composition |
(57) A process for preparing branched olefins, which process comprises dehydrogenating
an isoparaffinic composition comprising 0.5% or less quaternary aliphatic carbon atoms
over a suitable catalyst which isoparaffinic composition has been obtained by hydroisomerisation
of a paraffinic composition and which isoparaffinic composition comprises paraffins
having a carbon number in the range of from 7 to 18, of which paraffins at least a
portion of the molecules is branched, the average number of branches per paraffin
molecule being 0.5 to 2.5 and the branching comprising methyl and optionally ethyl
branches, said branched olefins comprising 0.5% or less quaternary aliphatic hydrocarbons.
A process for preparing branched alkyl aromatic hydrocarbons, which process comprises
contacting branched olefins with an aromatic hydrocarbon under alkylating conditions.
A process for preparing (branched-alkyl)arylsulphonates, comprising sulphonating branched
alkyl aromatic hydrocarbons.