Abstract: The present invention relates to a method for performing catalytic transalkylation between long-chain dialkyl benzenes and benzene in order to obtain monoalkyl benzenes. As dialkyl benzene source, this method employs the by-products of a method for alkylation of benzene with linear C9-C16 monoolefins.

Abstract: The present invention relates to a method for purifying alkyl aromatic compounds that is based on a system for percolating the fraction of the alkylate in which the chromophore precursors are concentrated using a selected clay placed in a fixed-bed reactor.

Abstract: The present invention relates to a process for obtaining a highly soluble linear alkylbenzene sulfonate with an adjustable 2-phenyl isomer content and an extremely low sulfonation color. In which a catalytic system based on highly stable solid catalysts and with a high selectivity for linear monoalkylated compounds is used.

Abstract: A process is described for the alkylation of benzene (in general, aromatic hydrocarbons), with C.sub.2 -C.sub.20 monoolefins in the presence of an aluminum-magnesium silicate catalyst, to give linear alkylbenzenes of detergent range, basic product in the manufacture of biodegradable detergents.The process is continuously carried out in a fixed bed, the alkylation taking place in a liquid phase.The alkylation catalyst is mainly made up of aluminum silicate and/or magnesium silicate and is conveniently modified to improve its activity and attain an adequate yield and selectivity in the alkylation for the desired product.

Abstract: A process is described for the alkylation of benzene (in general, aromatic hydrocarbons), with C.sub.2 -C.sub.20 monoolefins in the presence of an aluminum-magnesium silicate catalyst, to give linear alkylbenzenes of detergent range, basic product in the manufacture of biodegradable detergents.The process is continuously carried out in a fixed bed, the alkylation taking place in a liquid phase.The alkylation catalyst is mainly made up of aluminum silicate and/or magnesium silicate and is conveniently modified to improve its activity and attain an adequate yield and selectivity in the alkylation for the desired product.