Organic compounds -- part of the class 532-570 series – Organic compounds – Diazo or diazonium
Patent
1988-01-11
1989-04-11
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Diazo or diazonium
534819, C07C10706, C07C11304, C09B 2901
Patent
active
048208078
ABSTRACT:
A method of using a tubular reactor for accelerating heterogeneous reactions and affording an increased yield rate per unit of time and space wherein the cylindrical reactor tube contains in its interior a piston having relatively flat profiling in its skirt in the form of annular ribs and grooves therebetween, inlet conduits leading into the interior of the reaction tube through the bottom closure thereof, which may also be introduced from above and extend axially through the piston an outlet tube is provided in the region of the top closure of the reaction tube, the piston being connected via a piston rod with a vibrator imparting axial oscillatory movement of the piston, these oscillations generating turbulences in the annular piston grooves which effect a thorough mixing of the reaction participants without causing any noteworthy re-mixing of the resulting reaction products with the starting components; the process involving simultaneous and continuous introduction of a suspension of an insoluble reactant and a solution of a soluble reactant and thorough upward mixing thereof without remixing of volume units have different sojourn times in the tube.
REFERENCES:
Arnold et al, Chemical Abstracts, vol. 107, #80081t (1987).,
Bayer, Chemical Abstracts, vol. 91, #39109w (1979).
Bodrov et al, Chemical Abstracts, vol. 103, #7739b (1985).
Arnold Vladimir
Rumo Bernhard
Ciba-Geigy Corporation
Falber Harry
Higel Floyd D.
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