Method for pretreating a catalyst slurry and a method for the co

Details Method for pretreating a catalyst slurry and a method for the co Method for pretreating a catalyst slurry and a method for the co

1994-05-16

1997-08-12

Achutamurthy, Ponnathapura

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is aromatic

585206, 585271, 585273, 585277, 502325, 502326, 502328, 502329, C07C 511, B01J 2346

Patent

active

056567618

ABSTRACT:
A method for pretreating a slurry containing a ruthenium catalyst for use in the continuous partial hydrogenation of monocyclic aromatic hydrocarbons is disclosed. In this method, the above-mentioned slurry is heat-treated at a temperature of from 60.degree. to 180.degree. C. for at least 10 minutes while agitating. By using the pretreated catalyst slurry in the above-mentioned continuous partial hydrogenation, partial hydrogenation reaction products can be efficiently obtained without suffering from the excess mixing of the components of the catalyst slurry into an oil phase containing the partial hydrogenation reaction products, thereby enabling operations and facilities required for separation to be simplified.

REFERENCES:
patent: 4055512 (1977-10-01), Kageyama et al.
patent: 4665274 (1987-05-01), Ichiharhi et al.
patent: 4678861 (1987-07-01), Mitsui et al.
patent: 4734536 (1988-03-01), Nagahara et al.
Abstract of JP-A-32 38 047

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