Patents by Inventor Riccardo Rausa

Riccardo Rausa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200040287
    Abstract: A micellar compositions including oil-soluble surfactants delivered by water-soluble surfactants are disclosed. The micellar compositions demonstrate enhanced crude oil mobilization in porous media. When the porous media was imbued with crude oil, the presence of the surfactant in the oil phase improved the mobilization performance of crude oil. Solutions of SDS were used to solubilize the surfactant, and the formation of SDS/PIBSI micellar composition was confirmed by Cryo-SEM images. High cleaning effectiveness of the micellar compositions on crude oil entrapped in porous media was demonstrated by image binarization.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 6, 2020
    Applicants: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND, ENI S.p.A.
    Inventors: Kyriakos PAPADOPOULOS, Riccardo RAUSA
  • Publication number: 20140066579
    Abstract: Polyalkenyl succinimides which can be obtained with a process which comprises: a. reacting a reactive medium-high molecular weight polyalkene with maleic anhydride at a temperature higher than 180° C.; b. carrying out the reaction thermally for a time sufficient for having a conversion of the terminal vinylidene groups higher than 10%; c. completing the thermal reaction in the presence of a reaction accelerator consisting of a Lewis acid; d. reacting the reaction product of step (c) with an amine which has at least one primary aminic group capable of forming an imide group.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: ENI S.P.A.
    Inventors: Riccardo RAUSA, Orazio Pianta, Alberto Roselli, Mauro Anzani
  • Patent number: 8262385
    Abstract: A description follows of an aqueous dispersion of heavy oil residues, suitable for undergoing combustion with a low emission of SOx, comprising: (a) a heavy oil residue; (b) a dispersing agent; (c) a desulfurizing agent selected from CaCO3, MgCO3, dolomite and relative mixtures; (d) a desulfurizing agent with stabilizing and anti-corrosive properties selected from MgO, Mg(OH)2, CaO, Ca(OH)2 and relative mixtures; (e) water; the weight percentage of (e) with respect of the sum of (a)+(e) being at least 15%.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: September 11, 2012
    Assignee: Enitecnologie S.p.A.
    Inventors: Armando Marcotullio, Riccardo Rausa, Alessandro Lezzi
  • Publication number: 20100197538
    Abstract: Polyalkenyl succinimides which can be obtained with a process which comprises: a. reacting a reactive medium-high molecular weight polyalkene with maleic anhydride at a temperature higher than 180° C.; b. carrying out the reaction thermally for a time sufficient for having a conversion of the terminal vinylidene groups higher than 10%; c. completing the thermal reaction in the presence of a reaction accelerator consisting of a Lewis acid; d. reacting the reaction product of step (c) with an amine which has at least one primary aminic group capable of forming an imide group.
    Type: Application
    Filed: July 8, 2008
    Publication date: August 5, 2010
    Applicant: ENI S.P.A
    Inventors: Riccardo Rausa, Orazio Pianta, Alberto Roselli, Mauro Anzani
  • Patent number: 7763681
    Abstract: Process for the preparation of polyalkenyl acylating agents which comprises: a. reacting at a temperature higher than 180° C. a reactive polyalkene, having a number average molecular weight Mn ranging from 500 to 5000 and having a content of terminal vinylidene groups greater than or equal to 30%, with an enophile; b. thermally carrying out the reaction for a time sufficient for having a conversion of the terminal vinylidene groups higher than 15%; c. completing the reaction always under heat in the presence of a reaction accelerator consisting of a Lewis acid selected from a tin, zinc, aluminum or titanium halide.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 27, 2010
    Assignee: ENI S.p.A.
    Inventors: Riccardo Rausa, Andrea Pucci, Luigi D'Elia, Francesco Ciardelli
  • Publication number: 20080027187
    Abstract: Process for the preparation of polyalkenyl acylating agents which comprises: a. reacting at a temperature higher than 180° C. a reactive polyalkene, having a number average molecular weight Mn ranging from 500 to 5000 and having a content of terminal vinylidene groups greater than or equal to 30%, with an enophile; b. thermally carrying out the reaction for a time sufficient for having a conversion of the terminal vinylidene groups higher than 15%; c. completing the reaction always under heat in the presence of a reaction accelerator consisting of a Lewis acid selected from a tin, zinc, aluminum or titanium halide.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 31, 2008
    Applicant: ENI S.p.A.
    Inventors: Riccardo RAUSA, Andrea Pucci, Luigi D'Elia, Francesco Ciardelli
  • Publication number: 20060123695
    Abstract: Fuel for motor vehicles comprising an emulsion between water and a liquid hydrocarbon, and an anti-cavitation additive comprising a copolymer including 20-80% in moles, preferably 35-70% in moles, of units containing at least one carboxylic group and 80-20% in moles, preferably 65-30% in moles, of units deriving from at least one monomer having an ethylene unsaturation, and wherein at least 20% in moles of the carboxylic groups, preferably 30-90% in moles, is in the form of at least one derivative selected from carboxylate salt, ester, amide and imide.
    Type: Application
    Filed: March 22, 2004
    Publication date: June 15, 2006
    Applicant: ENI S.p.A.
    Inventors: Luigi D'Elia, Pietro Scorletti, Riccardo Rausa, Guido Rivolta, Alberto De Amicis, Tiziano Ambrosini
  • Publication number: 20040134833
    Abstract: A description follows of an aqueous dispersion of heavy oil residues, suitable for undergoing combustion with a low emission of SOx, comprising: (a) a heavy oil residue; (b) a dispersing agent; (c) a desulfurizing agent selected from CaCO3, MgCO3, dolomite and relative mixtures; (d) a desulfurizing agent with stabilizing and anti-corrosive properties selected from MgO, Mg(OH)2, CaO, Ca(OH)2 and relative mixtures; (e) water; the weight percentage of (e) with respect of the sum of (a) + (e) being at least 15%.
    Type: Application
    Filed: February 11, 2004
    Publication date: July 15, 2004
    Inventors: Armando Marcotullio, Riccardo Rausa, Alessandro Lezzi
  • Patent number: 5391534
    Abstract: A process for preparing activated charcoal having a high surface area is described, including a thermal treatment, in the presence of phosphoric acid, of regenerated humic acids.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: February 21, 1995
    Assignee: Eniricerche S.p.A.
    Inventors: Angelo Carugati, Gastone Del Piero, Riccardo Rausa
  • Patent number: 5382559
    Abstract: Process for preparing activated charcoal by means of the thermal treatment of potassium humates or humic acids, deriving from coal oxidation, in the presence of an activating agent.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: January 17, 1995
    Assignee: Eniricerche S.p.A.
    Inventors: Angelo Carugati, Gastone Del Piero, Riccardo Rausa
  • Patent number: 5248814
    Abstract: Process for preparing regenerated humic acids from coal by means of the continuous oxidation on fluidized bed, characterized in that a coal of lignite, sub-bituminous or bituminous type is submitted to a preliminary oxidation under mild conditions in order to reduce the hydrogen content of said coal by an amount of 5 to 25% of hydrogen initially present in the starting coal, and that the resulting coal is subsequently submitted to an oxidation in order to produce the desired humic acids.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: September 28, 1993
    Assignee: Eniricerche S.p.A.
    Inventors: Vincenzo Calemma, Vincenzo Piccolo, Riccardo Rausa
  • Patent number: 5112501
    Abstract: A method for reducing industrial or urban effluent COD is described, comprising treating said effluents with an aqueous solution of alkaline and/or ammonium salts or humic acids perpared by the dry oxidation of coal with oxygen or oxygen/nitrogen mixtures at a temperture of between 120 and 350.degree. C. at an oxygen partial pressure of between 0.1 and 10 ata for a contact time of between 15 and 600 minutes, followed by extraction of the crude oxidation product with an alkaline and/or ammoniacal solution, characterised in that said aqueous solution is fed into effluent, the pH of which has been previously adjusted to between 1 and 3.5, to the extent that the humic acid salts which exhibit flocculating action are in a concentration of less than or equal to 2000 mg/1 of effluent.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: May 12, 1992
    Assignee: Eniricerche S.p.A.
    Inventors: Riccardo Rausa, Vincenzo Calemma, Roberto Menicagli
  • Patent number: 5112363
    Abstract: A fluidizing and dispersing additive for coal-water mixtures, constituted by an ethoxylated adduct of either natural humic acids, or of humic acids deriving from partial coal oxidation.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: May 12, 1992
    Assignee: Eniricerche S.p.A.
    Inventors: Edoardo Platone, Aldo Prevedello, Riccardo Rausa
  • Patent number: 4969929
    Abstract: A fluidizing and dispersing additive for coal-water mixtures, constituted by an ethoxylated adduct of either natural humic acids, or of humic acids deriving from partial coal oxidation.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: November 13, 1990
    Assignee: Eniricerche, S.p.A.
    Inventors: Edoardo Platone, Aldo Prevedello, Riccardo Rausa
  • Patent number: 4788360
    Abstract: A process is disclosed for the production of humic acids, which comprises an oxidation of coal in dry phase with oxygen or mixtures of oxygen and nitrogen in a fluidized-bed reactor, by using coal with a granulometry comprised within the range of from 100 .mu.m to 3 mm and operating at a temperature comprised within the range of from 150.degree. to 300.degree. C., under a partial pressure of oxygen comprised within the range of from 1.1 abs.atm. to 10 abs.atm., for a contact time comprised within the range of from 30 minutes to 600 minutes.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 29, 1988
    Assignee: Eniricerche S.p.A.
    Inventors: Vincenzo Calemma, Riccardo Rausa
  • Patent number: 4746442
    Abstract: A process is disclosed for the removal of metals from waters containing them, comprising the treatment of the waters with an aqueous solution of alkaline salts of humic acids, which is characterized in that said solution is obtained by the dry oxidation of coal by oxygen or mixtures of oxygen and nitrogen, in particular air, and the subsequent extraction of the raw oxidation product by an alkaline solution, and that said aqueous solution is added to into the waters as such, wherein the humic acids salts perform a flocculating action, with the end pH being preliminarily to a value comprised within the range of from 1.5 to 5.5.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: May 24, 1988
    Assignee: Eniricerche S.p.A.
    Inventors: Vincenzo Calemma, Roberto Menicagli, Riccardo Rausa