Patent ID: 11926608
Assignee: NANJING UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 2:
3. The synthesis device for rapidly producing lactide at high yield according to claim 1, wherein the oligomer purification system (II) comprises an oligomer purification reactor (18), an oligomer discharging pump (19), and a purification condenser (24);
a side line feeding port of the oligomer purification reactor (18) is connected with a discharging pipe of the oligomer preparation system (I); a discharging pipe at a top of the oligomer purification reactor (18) is connected with a purification system condensate storage tank (26) after passing through the purification condenser (24), and a side face of the purification system condensate storage tank (26) is connected with an oligomer purification vacuum system (25); a discharging pipe at a bottom of the purification system condensate storage tank (26) is provided with a purification system condensate discharging pump (27);
the oligomer discharging pump (19) is located on a discharging pipe at a bottom of the oligomer purification reactor (18), and is connected with a feeding pipe of the oligomer depolymerization system (III); and
the oligomer purification reactor (18) is a packed rectifying tower.