Reaction column in a special combination with a natural...

Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters

Reexamination Certificate

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Reexamination Certificate

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07544832

ABSTRACT:
An arrangement for carrying out chemical reactions comprises at least one distillation column and/or at least one container and at least one circulation evaporator, which are connected to one another via connecting elements, liquid being taken off completely or partly from a tray or from a stacked packing bed or from a dumped packing bed or from a liquid collector of the distillation column or being fed as an external feed stream below the lower tube sheet of the circulation evaporator to said evaporator.

REFERENCES:
patent: 4019866 (1977-04-01), Jaswal et al.
patent: 4118286 (1978-10-01), Burns et al.
patent: 4380615 (1983-04-01), Sauerbrunn
patent: 5095164 (1992-03-01), Gabel et al.
patent: 2 410 474 (1974-03-01), None
patent: 196 31 332 (1996-05-01), None
patent: 100 27 779 (2000-06-01), None
patent: A 0 302 336 (1989-02-01), None
Perry's Chemical Engineers' Handbook (7th Edition), Edited by: Perry, R.H.; Green, D.W. © 1997 McGraw-Hill, p. 11-108.
PUR, Nr. 7 3 Sufl. Hauser, p. 72, 1993.
Distillation Operation, McGraw-Hill, 1989, p. 97.

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