Equilibrium reaction and gas/liquid reaction in a loop reactor

Details Equilibrium reaction and gas/liquid reaction in a loop reactor Equilibrium reaction and gas/liquid reaction in a loop reactor

B - Operations, Transporting

01

J

B01J 10/00 (2006.01) C07C 41/09 (2006.01)

Patent

CA 2529107

The invention relates to a process for simultaneously performing two chemically successive reactions in a loop reactor, specifically reaction I) an optionally catalyzed equilibrium reaction between high-boiling liquid reactants, in which essentially one high boiler is formed as an intermediate and at least one low boiler as a by-product, and (reaction II) a substantially diffusion-controlled reaction in which the liquid intermediate is reacted with at least one gaseous reactant to give the end product, wherein reactions (I) and (II), optionally after a start phase, are allowed to proceed simultaneously in the same apparatus, specifically loop reactor, and the loop reactor has a connectable gas-liquid circulation system coupled via an ejector mixing nozzle, in which circulated liquid phase is mixed in the ejector mixing nozzle with newly supplied gaseous reactant of reaction (II) (6) and/or gaseous reactant of reaction (II) aspirated by means of the ejector from the reactor via a connectable condenser (5), and fed to the reactor by a liquid jet ejector (2) for the reaction, the low-boiling by-products) of reaction (I) and also any low-boiling solvent being condensed and discharged in the condenser continuously over the duration of the process. In particular, the invention relates to a process for etherifying high-boiling polyether alcohols.

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