Comprehensive utilization method of Cu/SiO2 waste catalyst

• Main Authors: YANG HAO, TANG HUILIN, LYU RENLIANG, YAO QIANQIAN, ZHANG YAYUN, SUN GANG, HAN QINGWEN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to a comprehensive utilization method of a Cu/SiO2 waste catalyst. The method comprises the following steps: carrying out heating reflux reaction on the copper-containing waste catalyst, alcohol, a catalyst and a cocatalyst in a carbon dioxide gas atmosphere; and after the reaction is completed, removing the solvent by reduced pressure distillation, adding a proper amount of organic solvent into residues, stirring at room temperature, filtering, and removing the organic solvent by reduced pressure distillation of filtrate at 60 DEG C to obtain the organic silicon monomer. And washing the filter cake with water, adding the filter cake into an acid solution, stirring, filtering, adding a precipitator into the filtrate, stirring, filtering, washing and drying to obtain a copper-containing solid. 本发明涉及一种Cu/SiO2废催化剂的综合利用方法。步骤如下：含铜废催化剂、醇、催化剂及助催化剂在二氧化碳气体氛围下加热回流反应。反应完成后减压蒸馏除去溶剂，向残余物中加入适量有机溶剂，室温搅拌，过滤，滤液在60℃下减压蒸馏除去有机溶剂得有机硅单体。将滤饼水洗后加入到酸液中搅拌，过滤，向滤液中加入沉淀剂，搅拌，过滤，洗涤，烘干得到含铜固体。