Loaded type transition metal phosphide catalyst as well as preparation method and application thereof

• Main Authors: CHEN HONGMEI, ZHU YULEI, YANG YONG, GAO XIAOQING, ZHENG HONGYAN, LI YONGWANG, DING GUOQIANG
• Format: Patent
• Language: English
• Published: 20.01.2016
• 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 discloses a loaded type transition metal phosphide catalyst as well as a preparation method and application thereof. The loaded type transition metal phosphide catalyst is prepared form NixPy and a carrier, wherein the NixPy is loaded on the carrier. In the loaded type transition metal phosphide catalyst, the carrier is selected from at least one of silicon dioxide, titanium dioxide, zinc oxide and active carbon; the NixPy accounts for 8-16 parts by mass and the carrier accounts for 84-92 parts by mass; and the mol ratio of Ni to P is (0.5-2) to 1. The catalyst takes diammonium hydrogen phosphate as a phosphorus source, takes metal nickel nitrate as a precursor, and takes one of the silicon dioxide, the titanium dioxide, the zinc oxide and the active carbon as the carrier; by adopting a program heating and reduction method, the loaded type NixPy catalyst is rapidly and efficiently synthesized under a reducing atmosphere of H2 and the like; and the catalyst has good dimethyl oxalate hydrogenation activity, and methyl glycolate and glycol selectivity.