Abstract: The present invention refers to a procedure for obtaining a linear monoalkylaromatic compound, with adjustable 2-phenyl isomer content and an extremely low sulphonation color, in which a catalytic system is used based on highly stable and active solid catalysts and with a high selectivity for linear monoalkylaromatic compounds.
Type:
Grant
Filed:
December 4, 2007
Date of Patent:
August 7, 2012
Assignee:
Cepsa Quimica, S.A.
Inventors:
José Luis Berna Tejero, José Luis Goncalvez De Almeida
Abstract: The present invention refers to a process to obtain a highly soluble linear alkylbenzene sulfonate (LAS). Specifically it comprises the addition, prior or after sulfonation of linear alkylbenzene and/or neutralization of linear alkylbenzene sulfonic acid of an hydrotropic composition. It also refers to a hydrotropic composition, to a highly soluble linear alkylbenzene sulfonate, to the use of the hydrotropic composition for making said linear alkylbenzene sulfonate highly soluble and to a cleaning composition comprising said linear alkylbenzene sulfonate.
Type:
Grant
Filed:
April 12, 2005
Date of Patent:
April 17, 2012
Assignee:
Cepsa Quimica S.A.
Inventors:
José Luis Berna Tejero, José Luis Goncalvez De Almeida, Ignacio López Serrano
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.
Type:
Grant
Filed:
May 8, 2006
Date of Patent:
April 3, 2012
Assignee:
Cepsa Quimica, S.A.
Inventors:
José Luis Goncalvez De Almeida, José Luis Berna Tejero
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.
Type:
Grant
Filed:
March 16, 2006
Date of Patent:
October 11, 2011
Assignee:
Cepsa Quimica, S.A.
Inventors:
José Luis Goncalvez De Almeida, José Luis Berna Tejero
Abstract: The present invention refers to a procedure for obtaining a linear monoalkylaromatic compound, with adjustable 2-phenyl isomer content and an extremely low sulphonation color, in which a catalytic system is used based on highly stable and active solid catalysts and with a high selectivity for linear monoalkylaromatic compounds.
Type:
Application
Filed:
December 4, 2007
Publication date:
December 2, 2010
Applicant:
CEPSA QUIMICA, S.A.
Inventors:
José Luis Berna Tejero, José Luis Almeida