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公开(公告)号:KR1019930007731B1
公开(公告)日:1993-08-18
申请号:KR1019910010075
申请日:1991-06-18
Applicant: 한국과학기술연구원
IPC: C07C45/87
Abstract: A method for preparing diketene comprises absorbing the thermal-decomposed gas contg. 50 deg.C and 85-90 % ketene gas under the pressure of 100-300 mmHg in an absorbent selected from diketene, acetone, mixt. of diketene and anhydrous acetic acid, hexane or methyl pyrrolidone by use of a liquid ejector at -20 to
Abstract translation: 制备双烯酮的方法包括吸收热分解气体阻断物。 50℃和85-90%的乙烯酮气体,其压力为100-300mmHg,选自二烯酮,丙酮,混合物。 的二烯酮和无水乙酸,己烷或甲基吡咯烷酮,在-20℃下使用液体喷射器