INSTALLATION FOR OBTAINING ALDEHYDES BY HYDROFORMYLATION OF C3-C4 OLEFINS WITH APPLICATION OF CATALYTIC RHODIUM-BASED SYSTEM Russian patent published in 2015 - IPC B01J19/24 C07C45/50 C07C47/02 

FIELD: chemistry.

SUBSTANCE: installation includes: connected to reactor in parallel way via purification devices sources of synthesis-gas and olefin, successively connected via pipelines with product output from reactor gas-liquid high-pressure separator, device for separation of product aldehydes from catalyst solution, connected with reactor by pipeline of catalyst solution recycle, collector of product aldehyde, rectification column, connected with pipeline of catalyst solution recycle unit of waste catalyst collection and unit of feeding fresh catalyst, as well as line of gas recycle. Installation is provided with gas-liquid separator of low pressure with regulator of gas pressure and stripper, successively installed between gas-liquid high-pressure separator and device for separation of product aldehydes from rhodium-containing catalyst solution, made in form if film evaporator, installed on output of exhaust gases from collector of product aldehyde compressor, refrigerator-condenser and additional high-pressure separator, with output for gas from main high-pressure separator being connected with stripper, output for gas in which is connected with line of gas recycle, with outputs for gases of low-pressure separator and additional high-pressure separator being connected with film evaporator, input of which and stripper are connected with source of synthesis-gas.

EFFECT: realisation of hydroformylation on claimed installation makes it possible to increase degree of extraction and re-use of raw material, which does not react during one passage through reactor, increase total conversion of olefins, reduce thermal destruction of catalyst and loss of product aldehydes in the process of separating the latter from catalyst solution, as well as reduce loss of catalyst in the process of catalyst solution recycle.

1 dwg, 1 ex