Single stage fixed bed oxychlorination of ethylene

• Main Authors: P. FATUTTO, A. MARSELLA, D. VIO
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2004
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

本发明的催化剂，以Fe-K-Ce-Mo-Mg为主要体系，在添加微量组合体系，及四段脉冲控温活化技术时，所制得的催化剂性能优良，在低水比时仍具有很高的反应活性选择性，且自我再生能力强。本发明的催化剂制备工艺简单、操作弹性大。 A method for the oxychlorination of ethylene to produce 1,2-dichloroethane comprises reacting ethylene with a chlorine source and an oxygen source in a fixed-bed oxychlorination reactor in the presence of a catalyst, and is characterized in that a single reactor is used and ethylene is present in a large molar excess with respect to chlorine. The chlorine source is suitably HCl, the catalyst is suitably a cupric chloride catalyst, and the molar excess of ethylene is preferably between 200 and 700%.