Patents by Inventor Faissal-Ali El-Toufaili

Faissal-Ali El-Toufaili 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).

  • Patent number: 11384177
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide obtained by hydrolyzing acrylonitrile in water in the presence of a biocatalyst capable of converting acrylonitrile to acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The aqueous polyacrylamide gel furthermore comprises at least one stabilizer for prevention of polymer degradation.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 12, 2022
    Assignee: BASF SE
    Inventors: Tobias Joachim Zimmermann, Faissal-Ali El-Toufaili, Hazel Sprafke
  • Publication number: 20210347977
    Abstract: Process of providing polyacrylamides to a site-of-use comprising at least the steps of mixing a polyacrylamide powder at a manufacturing site with an aqueous liquid, thereby obtaining a homogeneous aqueous polyacrylamide concentrate, transporting said concentrate in a transport unit from the manufacturing site to the site-of-use, and removing the homogeneous aqueous concentrate from the transport unit at the site-of-use. Process of treating subterranean, oil and/or gas bearing formations by injecting an aqueous treatment fluid into at least one wellbore, wherein the aqueous treatment fluid is manufactured by mixing at least an aqueous base fluid with said homogeneous aqueous polyacrylamide concentrate at the site-of-use.
    Type: Application
    Filed: October 17, 2019
    Publication date: November 11, 2021
    Inventors: Faissal-Ali EL-TOUFAILI, Dennis LOESCH, Anna-Corina SCHMIDT, Tobias Joachim ZIMMERMANN, Markus OSTERMAYR, Jack F. TINSLEY, Brent BUSBY, Daniel BARRERA-MEDRANO
  • Publication number: 20210347924
    Abstract: Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.
    Type: Application
    Filed: October 17, 2019
    Publication date: November 11, 2021
    Inventors: Faissal-Ali El-Toufaili, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby
  • Publication number: 20210301039
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.
    Type: Application
    Filed: October 18, 2018
    Publication date: September 30, 2021
    Inventors: Faissal-Ali EL-TOUFAILI, Joerg UNGER
  • Publication number: 20210179758
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.
    Type: Application
    Filed: October 18, 2018
    Publication date: June 17, 2021
    Inventors: Hazel SPRAFKE, Markus OSTERMAYR, Tobias Joachim ZIMMERMANN, Dirk MECKELNBURG, Dennis LOESCH, Faissal-Ali EL-TOUFAILI
  • Publication number: 20210070904
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.
    Type: Application
    Filed: October 18, 2018
    Publication date: March 11, 2021
    Applicant: BASF SE
    Inventors: Dennis LOESCH, Tobias Joachim ZIMMERMANN, Hazel SPRAFKE, Dirk MECKELNBURG, Markus OSTERMAYR, Faissal-Ali EL-TOUFAILI
  • Patent number: 10927222
    Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 23, 2021
    Assignee: BASF SE
    Inventors: Sandra Jeck, Oliver Soetje, Tobias Bringmann, Gabriela Eugenia Fonseca Zepeda, Dirk Meckelnburg, Dennis Loesch, Bjoern Langlotz, John Barratt, Faissal-Ali El-Toufaili, Hazel Sprafke, Bernd Schube, Markus Ostermayr
  • Publication number: 20200369811
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide obtained by hydrolyzing acrylonitrile in water in the presence of a biocatalyst capable of converting acrylonitrile to acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The aqueous polyacrylamide gel furthermore comprises at least one stabilizer for prevention of polymer degradation.
    Type: Application
    Filed: October 18, 2018
    Publication date: November 26, 2020
    Inventors: Tobias Joachim ZIMMERMANN, Faissal-Ali EL-TOUFAILI, Hazel SPRAFKE
  • Publication number: 20200308314
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous monomer premix from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.
    Type: Application
    Filed: October 18, 2018
    Publication date: October 1, 2020
    Inventors: Hazel SPRAFKE, Dirk MECKELNBURG, Dennis LOESCH, Markus OSTERMAYR, Tobias Joachim ZIMMERMANN, Faissal-Ali EL-TOUFAILI
  • Publication number: 20200283675
    Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The transportable polymerization unit comprises a cylindrical upper part, a conical part at its lower end, feeds for the aqueous monomer solution, a closable bottom opening, and means allowing to deploy the polymerization unit in a vertical manner.
    Type: Application
    Filed: October 18, 2018
    Publication date: September 10, 2020
    Inventors: Hazel SPRAFKE, Tobias Joachim ZIMMERMANN, Dirk MECKELNBURG, Dennis LOESCH, Markus OSTERMAYR, Faissal-Ali EL-TOUFAILI
  • Publication number: 20190300657
    Abstract: Described herein is a process for preparing solid acrylic acid polymers including: (a) preparing an aqueous acrylic acid polymer solution having a solids content of 30% to 70% by weight by free-radical polymerization, (b) neutralizing the aqueous acrylic acid polymer solution at least partly by adding a base, which results in release of a heat of neutralization, and concentrating the aqueous acrylic acid polymer solution by exploiting the heat of neutralization to give a highly concentrated acrylic acid polymer solution having a solids content of 60% to 80% by weight, (c) shaping and drying the highly concentrated acrylic acid polymer solution.
    Type: Application
    Filed: July 10, 2017
    Publication date: October 3, 2019
    Inventors: Faissal-Ali El-Toufaili, Timo Laubscher, Juergen Detering, Martin Keller, Ines Debeasuvais De Vasconcelos, Dominik Lanzinger
  • Publication number: 20190292330
    Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
    Type: Application
    Filed: April 20, 2017
    Publication date: September 26, 2019
    Applicant: BASF SE
    Inventors: Sandra JECK, Oliver SOETJE, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Dirk MECKELNBURG, Dennis LOESCH, Bjoern LANGLOTZ, John BARRATT, Faissal-Ali EL-TOUFAILI, Hazel SPRAFKE, Bernd SCHUBE, Markus OSTERMAYR
  • Publication number: 20190153300
    Abstract: A method for preparing an aqueous polyacrylamide solution, where the method includes: hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution; directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel; and directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by water jet cutting.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 23, 2019
    Applicant: BASF SE
    Inventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE
  • Publication number: 20190144574
    Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises:—hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution,—directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and—directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 16, 2019
    Applicant: BASF SE
    Inventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE
  • Publication number: 20190030503
    Abstract: A mixer heat exchanger insert or mixer heat exchanger insert arrangement, and a mixer heat exchanger with a corresponding mixer heat exchanger insert arrangement, which have improved mixing and temperature-control behavior, and have a reduced fouling tendency.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 31, 2019
    Inventors: Faissal-Ali EL-TOUFAILI, Cornelia KERMER, Cecile MULLER-WEITZEL, Gledison FONSECA
  • Publication number: 20190022615
    Abstract: A mixer/heat exchanger insert or mixer/heat exchanger having a geometry which leads to less fouling of a fluid to be temperature-controlled.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 24, 2019
    Applicant: BASF SE
    Inventors: Faissal-Ali EL-TOUFAILI, Cornelia KERMER, Gledison FONSECA
  • Patent number: 10017609
    Abstract: Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 10, 2018
    Assignee: BASF SE
    Inventors: Philippe Desbois, Faissal-Ali El-Toufaili, Michael Gall, Andreas Wollny
  • Publication number: 20170081472
    Abstract: The present invention provides a process for producing polyamides, which comprises a) providing a monomer composition comprising at least one lactam or at least one aminocarbonitrile and/or oligomers of these monomers, b) reacting the monomer composition provided in step a) in a hydrolytic polymerization at elevated temperature in the presence of water to obtain a reaction product comprising polyamide, water, unconverted monomers and oligomers, c) the reaction product obtained in step b) being fed into at least one kneader (3) and subjected to a postpolymerization, d) optionally forming the reaction product obtained in step c) to obtain polyamide particles, e) optionally treating the reaction product obtained in step c) or the polyamide particles obtained in step d) with at least one extractant.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 23, 2017
    Applicant: BASF SE
    Inventors: Ning ZHU, Ruediger HAEFFNER, Achim STAMMER, Cesar ORTIZ, Silke BIEDASEK, Faissal-Ali EL-TOUFAILI
  • Patent number: 9534083
    Abstract: In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: January 3, 2017
    Assignee: BASF SE
    Inventors: Achim Stammer, Faissal-Ali El-Toufaili, Simon Gramlich, Angela Ulzhöfer
  • Publication number: 20160340509
    Abstract: The present invention relates to the use of polyolefin copolymers A) for reducing color changes during the heating of polymer compositions which contain at least one thermoplastic polyamide B).
    Type: Application
    Filed: January 26, 2015
    Publication date: November 24, 2016
    Applicant: BASF SE
    Inventors: Christian Schmidt, Florian Richter, Joachim Clauss, Andreas Wollny, Philippe Desbois, Faissal-Ali El-Toufaili, Achim Stammer, Stefan Schwiegk