Process for preparing a fluid for traction drive

Details Process for preparing a fluid for traction drive Process for preparing a fluid for traction drive

C - Chemistry, Metallurgy

07

C

260/681, 260/694

C07C 5/10 (2006.01) C07C 13/28 (2006.01) C10M 105/02 (2006.01) C10M 109/02 (2006.01)

Patent

CA 1255333

ABSTRACT OF THE DISCLOSURE A process for preparing a fluid for traction drive from a fraction containing compounds having at least four aromatic rings is disclosed. The fraction is a by-product produced at the time of the preparation of alpha-methyl- benzylalkylbenzenes by alkylation of at least one compound selected from C7-C10 alkylbenzenes with styrene in the presence of an acid catalyst. The process comprises the steps of decomposing the fraction in an atmosphere of hydrogen at a predetermined temperature and pressure, collecting a decomposition product having a boiling range not higher than 450°C and then subjecting the decomposition product to nuclear hydrogenation at aromatic rings thereof in the presence of a catalyst capable of nuclear hydrogenation.

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