摘要:
A process for the alkylation of aliphatic hydrocarbons with olefins catalyzed by a silica-based material, characterised in that the surface Si-OH groups of said silica are esterified with a fluoroalkylsulphonic acid of formula CF₃(CF₂) n SO₃H, where n is a whole number between 0 and 11, said material having a Hammett acidity H O ≦ -11.4.
摘要翻译:一种用二氧化硅基材料催化的用烯烃烷基化脂族烃的方法,其特征在于所述二氧化硅的表面Si-OH基团用式CF 3(CF 2)n SO 3 H的氟代烷基磺酸酯化,其中n是整数 在0和11之间,所述材料具有哈米特酸度HO = -11.4。
摘要:
Process for the production of diaminodiphenylmethane and its higher homologues products, which comprises reacting aniline, or one of its derivatives, and formaldehyde, or a compound capable of producing formaldehyde under the reaction conditions, in the presence of a zeolite in acid form having a spaciousness index ranging from 2.5 to 19.