CONTINUOUS GAS-LIQUID REACTION METHOD Russian patent published in 2003 - IPC

FIELD: chemical industry. SUBSTANCE: method for continuous obtaining of products of multiple joining of alkylenoxide and chain growth initiator with at least one active hydrogen atom involves preparing n reaction units, each having tubular reactor and heat-exchanger arranged downstream of tubular reactor in process flow; feeding chain growth initiator heated to predetermined temperature and alkylenoxide into reactor of first reaction unit; providing reaction between chain growth initiator and alkylenoxide to obtain first mixture; cooling first mixture by means of heat-exchanger; feeding cooled mixture and alkylenoxide into reactor of subsequent reaction unit; repeating cycle of mentioned stages up to terminating reaction unit and discharging produced mixture containing base product. Gas-liquid reaction process is conducted on the basis of dispersion of gas in liquid and liquid in gas, with any chain growth initiator, catalyst and alkylenoxide being used in the process. EFFECT: increased efficiency of reaction units and improved quality of base product. 12 cl, 1 dwg