Cubic CuO catalyst, and preparation method thereof

• Main Authors: SHI GUOJUN, BAO YAN, CHEN BINBIN
• Format: Patent
• Language: Chinese; English
• Published: 25.05.2016
• 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 cubic CuO catalyst, and a preparation method thereof. The cubic CuO catalyst is obtained via loading gamma-type Al2O3 with CuO, wherein loading amount of CuO is controlled to be 0.5 to 4mmol/g, and the phase of CuO is cubic phase. According to the preparation method, chemical vapor deposition is adopted to prepare the gamma-Al2O3 loaded cubic CuO catalyst, and the cubic CuO catalyst is used for preparing benzenediol and p-benzoquinone via phenol oxidation. The pure loaded-type cubic CuO catalyst is obtained at a sublimation temperature ranging from 160 to 190 DEG C, at a substrate temperature ranging from 260 to 300 DEG C, under a vacuum degree ranging from 0.07 to 0.09MPa, in 2 to 5h. The obtained cubic CuO catalyst possesses excellent low temperature activity and selectivity in reaction used for preparing benzenediol and p-benzoquinone via phenol hydroxylation.