Process for pressure separation of mathanol and dimethyl carbonate azeotrope

Application Number: 00107115
Application Date: 2000.04.17
Publication Number: 1271721
Publication Date: 2000.11.01
Priority Information:
International: C07C68/08;C07C69/96
Applicant(s) Name: Fin Chemical Plant, Non-Ferrous Jintai Chemical Co., Ltd., Tongling
Inventor(s) Name: Mei Zhiduo;Yin Fangxi;Yu Nengzhi
Patent Agency Code: 34105
Patent Agent: ma yuansheng
Abstract A process for the pressure separation of methanol-dimethyl carbonate azeotrope features that the pressure generated by material itself in pressure rectification tower is used to separate methanol and small quantity of dimethyl carbonate at tower top and the dimethyl carbonate with purity of over 97% is separated at tower bottom and then further rectified in rectifying tower for higher purity. Its advantages are low investment to equipment, low power consumption, few control units, easily controlled pressure in tower, and wide range of pressure.