Method for obtaining cyclododecatriene by evaporation

Details Method for obtaining cyclododecatriene by evaporation Method for obtaining cyclododecatriene by evaporation

2011-06-14

2011-06-14

Manoharan, Virginia (Department: 1771)

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

C159S047100, C203S040000, C203S049000, C203S078000, C585S020000, C585S803000, C585S809000

Reexamination Certificate

active

07959766

ABSTRACT:
Process for recovering cyclododecatriene (CDT) from a solution containing CDT and high boilers such as deactivated catalyst and polymers, which includes feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator and there reducing the CDT content of the liquid phase by partial evaporation and discharging a gaseous product stream having an increased concentration of CDT.

REFERENCES:
patent: 3365507 (1968-01-01), Rike, III
patent: 3550669 (1970-12-01), Casper et al.
patent: 3969196 (1976-07-01), Zosel
patent: 7649119 (2010-01-01), Teles et al.
patent: 2007/0178029 (2007-08-01), Goebbel et al.

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