摘要:
Process for the epoxidation of olefins with oxygen and/or air and a redox system, in the presence of titanium silicalite, characterized in that the redox system is selected from: 1) quinone/hydroquinone derivatives having the general formula (Ia) and (Ib) ##STR1## 2) acetophenone/1-phenyl ethanol derivatives having the general formula (IIa) and (IIb) ##STR2##
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 CF.sub.3 (CF.sub.2).sub.n SO.sub.3 H, where n is a whole number between 0 and 11, said material having a Hammett acidity Ho.ltoreq.-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H H 11-14。
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 CF.sub.3 (CF.sub.2).sub.n SO.sub.3 H, where n is a whole number between 0 and 11, said material having a Hammett acidity Ho.ltoreq.-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H H 11-14。
摘要:
A process to efficiently remove sulfur compounds from a hydrocarbon stream in a refinery operation includes the production and recycle of hydrogen from the sulfur compounds. The sulfur compounds present in the hydrocarbon cut are converted to hydrogen sulphide which is split to hydrogen and sulfur in a non-thermal plasma reactor.
摘要:
A process to efficiently remove sulfur compounds from a hydrocarbon stream in a refinery operation includes the production and recycle of hydrogen from the sulfur compounds. The sulfur compounds present in the hydrocarbon cut are converted to hydrogen sulphide which is split to hydrogen and sulfur in a non-thermal plasma reactor.
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.