Catalyst for benzene preparation through acetylene trimerization and use method of catalyst

• Main Authors: SHI XUEJUN, YU HAIPENG, WU LIYANG, SHI DONGJUN, WU DAOHONG, HUANG WEI, SU ERQIANG, ZHENG QINGQING
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of chemical engineering and particularly relates to a catalyst for benzene preparation through acetylene trimerization and a use method of the catalyst. The catalyst is prepared from components in parts by weight as follows: 0.1-5 parts of trans-dichlorobis(triphenyl-phosphine)palladium(II), 30-90 parts of cuprous chloride and 9-70 parts of acid salt. Accordingly, the catalyst for benzene preparation can quickly catalyze acetylene to be subjected to a cyclotrimerization reaction to produce benzene, the conversion rate of acetylene and the selectivity of benzene are relatively high in the reaction, the catalyst can maintain the reaction for a longer time period, and the catalyst is suitable for industrial large-scale production and has very good market application prospects. 本发明属于化工技术领域，具体涉及种乙炔三聚制苯催化剂及其使用方法。该催化剂包括以下组分：(二)三苯基膦二氯化钯、氯化亚铜以及酸性盐；上述各个组分的重量份数为：0.1-5重量份的(二)三苯基膦二氯化钯、30-90重量份的氯化亚铜以及9-70重量份的酸性盐。由此，本发明提供的该制苯催化剂可以催化乙炔发生环三聚反应生成苯，且反应中乙炔的转化率和苯的选择性较高，并且催化剂的寿命能够维持较长的时