化工矿物与加工2025，Vol.54Issue(12)：8-15,8.DOI:10.16283/j.cnki.hgkwyjg.2025.12.002
炔醛法合成1,4-丁炔二醇废旧催化剂的萃取脱碳促活机理研究
Methanol on the synthesis of 1,4-butynediol waste catalyst by alkynyl aldehyde method
摘要
Abstract
The rapid development of degradable polyesters has promoted a significant increase in the demand for 1,4-butanediol(BDO),and 1,4-butynediol(BYD)intermediate products need to be produced under the action of Cu-Bi catalysts.The waste Cu-Bi catalyst discharged regularly is hazardous waste,and its safe disposal is one of the key links in BDO production.In this paper,a methanol extraction method was proposed to decarbonize and promote the activity of waste Cu-Bi catalysts.X-ray fluorescence spectrometer(XRF),scanning electron microscope(SEM),energy dis-persive spectrometer(EDS),X-ray diffraction spectroscopy(XRD),Fourier transform infrared spectroscopy(FT-IR),X-ray photoelectron spectroscopy(XPS)and thermogravimetric-differential thermogravimetric analysis(TG-DTG)were used to characterize the element distribution,surface morphology,mineral phase,functional group,chemical bond,volatilization and combustion characteristics of the waste Cu-Bi catalyst.The results show that metha-nol extraction can remove the oxygen-containing organic small molecules in the waste catalyst,and the extraction rate is about 47.80%.In the extraction process,the mineral phase,functional groups and chemical bonds of the active components of the spent catalyst were retained,which laid the foundation for the activation of the spent catalyst.Compared with the waste catalyst,the formaldehyde conversion rate of the catalyst after methanol extraction increased by 4 percentage points,the yield of BYD increased by 3 percentage points,and the selectivity of BYD did not increase significantly.The extraction decarburization process is helpful to activate the waste Cu-Bi catalyst and realize its recy-cling.关键词
废旧Cu-Bi催化剂/甲醇萃取/脱碳/促活/1,4-丁炔二醇/表征Key words
waste Cu-Bi catalyst/methanol extraction/decarbonization/activation/1,4-butynediol/characterization分类
化学化工引用本文复制引用
李鹤,谭比克,刘秉毅,姚子馨,肖朋杰,魏桂荣,杨桂花,张迎霜,莫文龙..炔醛法合成1,4-丁炔二醇废旧催化剂的萃取脱碳促活机理研究[J].化工矿物与加工,2025,54(12):8-15,8.基金项目
国家自然科学基金项目(22368045,52400187) （22368045,52400187）
新疆维吾尔自治区自然科学基金-青年基金项目(2022D01C669) （2022D01C669）
新疆维吾尔自治区重点研发任务专项(2024B04001) （2024B04001）
新疆维吾尔自治区自然科学基金项目(2022D01C23). （2022D01C23）
