常見例句雙語例句Methods of recycling benzoic acid was studied from wastewater of preparing peroxide of tert-butyl benzoate.研究了過氧化苯甲酸叔丁酯合成廢水中苯甲酸的回收方法。Butyl p-hydroxy benzoate can be synthesized using toluene-p-sulfonic acid supported on granule activated carbon as catalyst and the excess n-butyl alcohol as azeotropic water stripping agents.提出了一種合成防腐劑對羥基苯甲酸丁酯的新工藝，即以顆粒狀活性炭固載對甲苯磺酸作催化劑，正丁醇作共沸帶水劑，由對羥基苯甲酸和正丁醇直接制備對羥基苯甲酸丁酯。 返回 butyl benzoate