Basf Se Corporation

Daniela Malkowsky

Alois Kindler

Stefan Bitterlich

Marco Bosch

Joachim Pfeffinger

Stephan Deuerlein

Veronika Wloka

Martin Bock

Daniel Pfeiffer

Steffen Oehlenschläger

Markus Schmitt

Roman Prochazka

Albena Kostova

Stephan Goettke

Steffen Tschirschwitz

Kathrin Wissel-Stoll

Jochen Bürkle

Gauthier Luc Maurice Averlant

Katharina Spuhl

Joni Joni

Michael Schreiber

Steffen OEHLENSCHLÄGER

The present invention relates to a process for preparing cyclohexane by isomerizing a hydrocarbon mixture (HM) comprising methylcyclopentane (MCP) in the presence of a catalyst. The catalyst is preferably an acidic ionic liquid. The starting material used is a stream (S) which originates from a steamcracking process. The hydrocarbon mixture (HM) obtained from this stream (S) in an apparatus for aromatics removal has a reduced aromatics content compared to stream (S), and (HM) may optionally also be (virtually) free of aromatics. Depending on the type and amount of the aromatics remaining in the hydrocarbon mixture (HM), especially in the case that benzene is present, the isomerization may additionally be preceded by performance of a hydrogenation of (HM). In addition, depending on the presence of other components of (HM), further purification steps may optionally be performed prior to or after the isomerization or hydrogenation. High-purity (on-spec) cyclohexane is preferably isolated from the hydrocarbon mixture (HM) obtained in the isomerization, the specifications being, for example, those applicable to the use of the cyclohexane for the preparation, known to those skilled in the art, of caprolactam.

Process for preparing cyclohexane with starting materials originating from a steamcracking process

The present invention provides a composition which comprises at least one epoxy resin and a mixture comprising the 7 stereoisomers of diaminomethylcyclohexane in very specific ratios relative to one another, a process for preparing the composition, the use of the composition for producing hardened epoxides, adhesives, composite materials and moldings, a mixture comprising the 7 stereoisomers of diaminomethylcyclohexane in the specific ratios, and the use of this mixture for producing the composition.

Use of a stereoisomer mixture of diaminomethylcyclohexane as a hardener for epoxy resins

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Speyer, Germany

Daniela Malkowsky