- 作者: 李道柄
- 作者服務機構: Contribution from Sinchu Research Insitute, Chinese Petroleum Corporation
- 中文摘要:
Sulfuric acid, p-toluene sulfonic acid, silica gel, alumina gel, aluminum oxide and powdered aluminum were used as catalyst for the preparation of dioctyl phthalate by direct esterification. The effect of these was carefully studied. When sulfuric acid or p-toluene sulfonic acid was used as catalyst, benzene, toluene, or low boiling fraction of gasoline, was added to the reaction mixture for the removal of water, a yield as high as 95% was attainad by using 2-3% of catalyst and 15% excess of octyl alcohol.
In the case of solid catalyst, powdered aluminum was most satisfactory, the amount of catalyst used being 5% 92-93% yield was attained. No solvent was used. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --