摘要
通过水热法制备了TiO2-PILC,用XRD、FT-IR、BET等对催化剂进行表征,考察了催化剂制备条件及催化1,4-丁二醇液相环化脱水合成四氢呋喃工艺条件,结果显示:钛/土比为0.025mol/g,焙烧温度650K,反应温度190～200℃,每克催化剂可处理1,4-丁二醇98kg以上,原料转化率≥99%,四氢呋喃的选择性≥99.4%,羰基含量≤0.19%,精馏后产品四氢呋喃纯度≥99.7%。
TiO2-PILC was prepared by the hydrothermal method. The prepared TiO2-PILC was characterized with XRD, FT-IR, BET. The catalyst was used for cyclodehydration of 1,4-butanediol to tetrahydrofuran in liquid phase. The reaction conditions were titanium /montmorillonites ratio 0.025mol/g, calcination temperature 650 K, reaction temperature 190-200 ℃. Over 98kg 1,4-butanediol was used for lg catalyst, and the conversion was above 99%. The selectivity of tetrahydrofuran was more than 99.4%. After rectification, the purity index of tetrahydrofuran was over 99.7%, carbonyl content was under 0.019%.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2006年第8期933-937,共5页
Chemical Industry and Engineering Progress
基金
国家863项目资助(2005AA0011050)
