Nano catalyst for synthesizing glycol by hydrogenation of diester oxalate

• Main Authors: LI ZHAOJI, PAN PENGBIN, LIN LING, ZHOU ZHANGFENG, CHENG JIANKAI, QIN YEYAN, YAO YUANGEN
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2010
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a nano catalyst for synthesizing glycol by the hydrogenation of diester oxalate. Chromic anhydride and copper nitrate are used as raw materials, a reaction is quickly and dispersedly carried out at the presence of ammonium salt in a solution by the modes of high-speed rotary stirring and trace low-speed dripping to form a precipitate of nano particles, and then the nano catalyst is prepared by filtering, drying and baking. The catalyst is used for synthesizing the glycol by the gas-phase catalytic hydrogenation of the diester oxalate, adopts a fixed bed reaction device and has high reaction performance.