Abstract: Mesoporous anatase metatitanic acid catalyst was prepared by water washing，caustic washing，acid washing with industrial partial titanium pulp as raw material，then applied to the esterification reaction of α-pinene to investigate the catalytic effects. The catalysts were characterized by FTIR、XRD、SEM and BET. The results showed that the optimal preparation condition was temperature 30 ℃，caustic washing pH=8.5，acid washing pH=4.0. SO42? was barely detected in the catalysts after the treatment，and all crystal form was in anatase phase without any significant change. The metatitanic acid catalyst prepared under optimal conditions has a homogeneous pore distribution，less grain agglomeration，a specific surface area of 334.82 m2/g and an average pore size of 3.96 nm. In the optimal catalysis of α-pinene by metatitanic acid，48.59% bornyl oxalate is obtained；steam distillation is employed after saponification to collected product，where the ratio of borneol to isoborneol reaches 59.27∶37.07.

Key words: metatitanic acid, α-pinene, catalytic esterification, bornyl oxalate

摘要： 以工业偏钛浆为原料，通过水洗、碱洗、酸洗处理制备了锐钛型介孔偏钛酸催化剂，将催化剂用于α-蒎烯酯化反应中考察其催化性能，采用FT-IR、XRD、SEM、BET手段对催化剂的晶相结构、形貌、表面积、孔径等结构进行了表征。结果表明，最佳制备条件为：温度30 ℃，碱洗pH=8.5，酸洗pH=4.0；处理后的偏钛酸催化剂基本没有SO42?，且晶型没有发生明显变化，均为锐钛矿相，最佳条件下制备的偏钛酸催化剂孔径分布均匀，晶粒团聚较少，比表面积为334.82 m2/g，平均孔径为3.96 nm，催化α-蒎烯酯化生成草酸龙脑酯含量可达48.59 %，皂化后水蒸气蒸馏收集龙脑，m1（正龙脑）∶m2（异龙脑）=59.27∶37.07。

关键词: 偏钛酸, α-蒎烯, 催化酯化, 草酸龙脑酯