Cerium-promoted silica supported copper chromite catalyst was synthesized from acid hydrolysis of sodium silicate by sol......

Pharmaceutical excipients for topical use may contain impurities, which are often neglected from a toxicity qualificatio......

在常压 H2 气氛下催化丙三醇脱水-加氢制备了 1,2-丙二醇. 首先在 220 oC 和常压 H2 条件下, 以 Cu/Al2O3 为催化剂催化丙三醇脱水......

用共沉淀法制备了Cu-Cr-Zn催化剂,考察了Cu/Cr/Zn比、沉淀温度、沉淀时pH值、煅烧温度等制备条件对甘油制备羟基丙酮的影响,并对催......

以锌修饰的亚铬酸铜为催化剂,考察了锌含量、催化剂煅烧温度、催化剂用量、反应温度等条件对甘油脱水制备羟基丙酮的影响。结果表......