粗对苯二甲酸加氢精制催化剂

• Format: Patent
• Language: Chinese
• Published: 13.07.2018
• 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

本发明涉及粗对苯二甲酸加氢精制催化剂、催化剂的制备方法，以及粗对苯二甲酸加氢精制方法，主要解决现有技术中存在的加氢过程中副产物多的问题，本发明通过采用粗对苯二甲酸加氢精制催化剂，所述催化剂包括载体和活性组分，所述的载体为二氧化钛；所述活性组分包括钯和钌，钯的质量百分含量为催化剂干重的0.3～0.8％，钌与钯的质量之比为(0～4)：4的技术方案，较好地解决了该技术问题，可用于粗对苯二甲酸加氢精制生产中。 The invention relates to a crude terephthalic acid hydrofining catalyst and a preparation method thereof, and a crude terephthalic acid hydrofining method, and is used for mainly solving the problem that a hydrogenation process has many by-products in the prior art. The technical problem is better solved through adopting the technical scheme that the crude terephthalic acid hydrofining catalyst is provided, the catalyst includes a carrier and active components, the carrier is titanium dioxide, the active components include palladium and ruthenium, the mass percentage of palladium is 0.3-0.8% of the dry weight of the catalyst, and the mass ratio of ruthenium to palladium is (0-4) to 4. The catalyst can be used in crude terephthalic acid hydrofining production.