Patent ID: 6596129
Filing Date: 2003-07-22
Classification: B01D,Y10S

Abstract:
A distillation process for an easily polymerizable substance-containing solution comprising an easily polymerizable substance, wherein the process comprises the steps of:a) distilling the easily polymerizable substance-containing solution to obtain a vapor (1); b) condensing the vapor (1) in a condenser for vapor (1) to obtain a vapor (2) and a condensate (1), wherein said vapor (2) comprises a first portion of said easily polymerizable substance, and wherein said condensate (1) comprises a second portion of said easily polymerizable substance; c) condensing the vapor (2) including said first portion of said easily polymerizable substance in a condenser for vapor (2) to obtain a condensate (2); d) causing said condensate (2) from the condenser for vapor (2) to join with said condensate (1) from the condenser for vapor (1); e) controlling a refrigerant inlet temperature of the condenser for vapor (1) in a range of 3 to 50Â° C.; f) controlling a refrigerant inlet temperature of the condenser for vapor (2) in a range of 0 to 50Â° C.; g) controlling the refrigerant inlet temperature of the condenser for vapor (2) to be not greater than the refrigerant inlet temperature of the condenser for vapor (1) such that the condenser for vapor (2) condenses a low boiling point component; and h) controlling a temperature of the refrigerant inlet temperature of one of the condensers relative to a refrigerant outlet temperature of said condenser such that the refrigerant inlet temperature of said condenser is lower than the refrigerant outlet temperature of said condenser by 1 to 25Â° C.