Patents by Inventor Rafael Alberto Garcia Martinez

Rafael Alberto Garcia Martinez 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: 10676404
    Abstract: A fertiliser comprising both sulphur and a solution of urea and ammonium nitrate in water is disclosed. Processes for making such a fertiliser are also disclosed.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: June 9, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais
  • Patent number: 10464854
    Abstract: A process for preparing a micronutrient-enriched phosphate-based fertilizer is disclosed. An aqueous fertilizer mixture comprising phosphoric acid and/or phosphate rock is prepared and optionally granulated in granulator unit. The pH of the fertilizer mixture is measured and controlled such that the pH is maintained within a predefined range.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Rafael Alberto Garcia Martinez, Klaas Jan Hutter, Charles James Ingoldsby, Jason Trevor O'Brien, Carlos Moreira Tomaz
  • Patent number: 10464855
    Abstract: A process for preparing a urea-sulphur fertiliser is disclosed. Urea and sulphur are supplied to a dispersion mill wherein a rotor turns within a slotted stator, thereby providing a dispersion of molten urea and molten sulphur; and the dispersion of molten urea and molten sulphur is supplied to a forming unit to provide the urea-sulphur fertiliser.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Rafael Alberto Garcia Martinez
  • Patent number: 10221106
    Abstract: A process for the manufacture of a urea-sulphur fertiliser composition, the process comprising providing feeds comprising elemental sulphur, urea, and optionally a surfactant, such as a multifunctional ionic surfactant; merging the feeds in order to obtain a combined feed; passing the combined feed through a mixing stage in order to obtain a mixed feed; and passing the mixed feed through a processing stage in order to obtain the urea-sulphur fertiliser composition. Compositions obtained by the process are also provided.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: March 5, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez, Charles James Ingoldsby, Carlos Moreira Tomaz, Jason Trevor O'Brien
  • Patent number: 10202311
    Abstract: The present invention discloses a urea fertilizer having a lignin compound and elemental sulphur dispersed throughout the fertilizer and having improved hardness.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 12, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais, Klaas Jan Hutter, Charles James Ingoldsby, Carlos Moreira Tomaz
  • Patent number: 10077215
    Abstract: The present invention discloses the use of a lignin compound to prepare a urea fertiliser having reduced biuret content.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 18, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Rafael Alberto Garcia Martinez, Cyrille Paul Allais, Dawid John D'Melo, Chithra Manikandan
  • Publication number: 20180244588
    Abstract: A fertiliser comprising both sulphur and a solution of urea and ammonium nitrate in water is disclosed. Processes for making such a fertiliser are also disclosed.
    Type: Application
    Filed: September 2, 2016
    Publication date: August 30, 2018
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS
  • Publication number: 20170210675
    Abstract: A process for the manufacture of a urea-sulphur fertiliser composition, the process comprising providing feeds comprising elemental sulphur, urea, and optionally a surfactant, such as a multifunctional ionic surfactant; merging the feeds in order to obtain a combined feed; passing the combined feed through a mixing stage in order to obtain a mixed feed; and passing the mixed feed through a processing stage in order to obtain the urea-sulphur fertiliser composition. Compositions obtained by the process are also provided.
    Type: Application
    Filed: July 24, 2015
    Publication date: July 27, 2017
    Inventors: Cyrille Paul ALLAIS, Klaas Jan HUTTER, Rafael Alberto GARCIA MARTINEZ, Charles James INGOLDSBY, Carlos MOREIRA TOMAZ, Jason Trevor O'BRIEN
  • Patent number: 9598322
    Abstract: The invention provides a process for the preparation an emulsion of elemental sulphur particles, said process comprising the steps of: (a) providing a first stream comprising a liquid fertilizer and/or a liquid fertilizer precursor; (b) providing a second stream comprising liquid elemental sulphur; and (c) mixing the first stream and the second stream in a mixing device in the presence of a multifunctional ionic surfactant to form an emulsion comprising elemental sulphur particles which are coated with a layer of the multifunctional ionic surfactant and dispersed in the fertilizer and/or the fertilizer precursor, whereby a temperature is applied which maintains the elemental sulphur substantially in the liquid form in the mixing device. The invention further provides an elemental sulphur-containing fertilizer obtainable by a process according to the invention.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 21, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez
  • Publication number: 20160368830
    Abstract: A process for preparing a micronutrient-enriched phosphate-based fertiliser is disclosed. An aqueous fertiliser mixture comprising phosphoric acid and/or phosphate rock is prepared and optionally granulated in granulator unit. The pH of the fertiliser mixture is measured and controlled such that the pH is maintained within a predefined range.
    Type: Application
    Filed: July 2, 2014
    Publication date: December 22, 2016
    Inventors: Cyrille Paul ALLAIS, Rafael Alberto GARCIA MARTINEZ, Klaas Jan HUTTER, Charles James INGOLDSBY, Jason Trevor O'BRIEN, Carlos TOMAZ
  • Publication number: 20160332924
    Abstract: The present invention discloses the use of a lignin compound to prepare a urea fertiliser having reduced biuret content.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 17, 2016
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS, Dawid John D'MELO, Chithra MANIKANDAN
  • Publication number: 20160332923
    Abstract: A process for preparing a urea-sulphur fertiliser is disclosed. Urea and sulphur are supplied to a dispersion mill wherein a rotor turns within a slotted stator, thereby providing a dispersion of molten urea and molten sulphur; and the dispersion of molten urea and molten sulphur is supplied to a forming unit to provide the urea-sulphur fertiliser.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 17, 2016
    Inventors: Cyrille Paul ALLAIS, Rafael Alberto GARCIA MARTINEZ
  • Publication number: 20160326066
    Abstract: The present invention discloses a urea fertiliser having a lignin compound and elemental sulphur dispersed through-out the fertiliser and having improved hardness.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 10, 2016
    Inventors: Rafael Alberto GARCIA MARTINEZ, Cyrille Paul ALLAIS, Klaas Jan HUTTER, Charles James INGOLDSBY, Carlos MOREIRA TOMAZ
  • Publication number: 20150175492
    Abstract: The invention provides a process for the preparation an emulsion of elemental sulphur particles, said process comprising the steps of: (a) providing a first stream comprising a liquid fertilizer and/or a liquid fertilizer precursor; (b) providing a second stream comprising liquid elemental sulphur; and (c) mixing the first stream and the second stream in a mixing device in the presence of a multifunctional ionic surfactant to form an emulsion comprising elemental sulphur particles which are coated with a layer of the multifunctional ionic surfactant and dispersed in the fertilizer and/or the fertilizer precursor, whereby a temperature is applied which maintains the elemental sulphur substantially in the liquid form in the mixing device. The invention further provides an elemental sulphur-containing fertilizer obtainable by a process according to the invention.
    Type: Application
    Filed: July 8, 2013
    Publication date: June 25, 2015
    Inventors: Cyrille Paul Allais, Klaas Jan Hutter, Rafael Alberto Garcia Martinez
  • Patent number: 8702834
    Abstract: According to the present invention, there is provided a process for the manufacture of sulphur-containing fertilizer compositions, said process comprising the steps of: a) providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b} bringing said slurry into contact with at least one surfactant and elemental sulphur; and c) introducing the mixture obtained in step b) into a granulator unit in order to obtain granules of the fertilizer composition, wherein the elemental sulphur is present in an amount in the range of form 1 to 25 wt. %, based on the total weight of the fertilizer composition The present invention also provides a fertilizer composition.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: April 22, 2014
    Assignee: Shell Oil Company
    Inventors: Jany Birgitta Maria Antens, Rafael Alberto Garcia Martinez, Reginald Lambert, Jason Trevor O'Brien, Marinus Johannes Reynhout, Guy Lode Magda Maria Verbist, John Woodruffe
  • Patent number: 8679219
    Abstract: A process for preparing an elemental sulphur-containing fertilizer is disclosed. The process uses a dispersion mill, wherein a rotor turns within a slotted stator, to wet mill elemental sulphur in a liquid (preferably an aqueous liquid), thereby providing a dispersion of milled elemental sulphur in the liquid. The dispersion is combined with further components to provide a mixture of elemental sulphur and further components, and the mixture is granulated in a granulator unit to provide granulated elemental sulphur-containing fertilizer.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 25, 2014
    Assignee: Shell Oil Company
    Inventors: Rafael Alberto Garcia Martinez, Klaas J Hutter
  • Patent number: 8668759
    Abstract: Process for the manufacture of sulphur-containing fertilizer compositions, comprising the steps of: a} providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b) bringing said slurry into contact with at least one anionic surfactant and elemental sulphur; c) introducing the mixture obtained in step b} into a granulator unit in order to obtain granules of the fertilizer composition, wherein the at least one phosphate-based fertilizer material is present in an amount in the range of at least 50 wt. %, the elemental sulphur is present in an amount in the range of from 1 to 25 wt. % and the anionic surfactant is present in an amount in the range of from 0.001 to 3 wt. % based on the overall weight of the fertilizer composition. The present invention also provides a fertilizer composition.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 11, 2014
    Assignee: Shell Oil Company
    Inventors: Jany Birgitta Maria Antens, Sunil Ashtekar, Rafael Alberto Garcia Martinez, Reginald Lambert, Jason Trevor O'Brien, Marinus Johannes Reynhout, Guy Lode Magda Maria Verbist, John Woodruffe
  • Publication number: 20120272702
    Abstract: A process for preparing an elemental sulphur-containing fertilizer is disclosed. The process uses a dispersion mill, wherein a rotor turns within a slotted stator, to wet mill elemental sulphur in a liquid (preferably an aqueous liquid), thereby providing a dispersion of milled elemental sulphur in the liquid. The dispersion is combined with further components to provide a mixture of elemental sulphur and further components, and the mixture is granulated in a granulator unit to provide granulated elemental sulphur-containing fertilizer.
    Type: Application
    Filed: February 18, 2010
    Publication date: November 1, 2012
    Inventors: Rafael Alberto Garcia Martinez, Klaas J Hutter
  • Publication number: 20110302973
    Abstract: Process for the manufacture of sulphur-containing fertilizer compositions, comprising the steps of: a} providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b) bringing said slurry into contact with at least one anionic surfactant and elemental sulphur; c) introducing the mixture obtained in step b} into a granulator unit in order to obtain granules of the fertilizer composition, wherein the at least one phosphate-based fertilizer material is present in an amount in the range of at least 50 wt. %, the elemental sulphur is present in an amount in the range of from 1 to 25 wt. % and the anionic surfactant is present in an amount in the range of from 0.001 to 3 wt. % based on the overall weight of the fertilizer composition. The present invention also provides a fertilizer composition.
    Type: Application
    Filed: January 29, 2010
    Publication date: December 15, 2011
    Inventors: Jany Birgitta Maria Antens, Sunil Ashtekar, Rafael Alberto Garcia Martinez, Reginald Lambert, Jason Trevor O'Brien, Marinus Johannes Reynhout, Guy Lode Magda Maria Verbist, John Woodruffe
  • Publication number: 20110302975
    Abstract: According to the present invention, there is provided a process for the manufacture of sulphur-containing fertilizer compositions, said process comprising the steps of: a) providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b} bringing said slurry into contact with at least one surfactant and elemental sulphur; and c) introducing the mixture obtained in step b) into a granulator unit in order to obtain granules of the fertilizer composition, wherein the elemental sulphur is present in an amount in the range of form 1 to 25 wt. %, based on the total weight of the fertilizer composition The present invention also provides a fertilizer composition.
    Type: Application
    Filed: January 29, 2010
    Publication date: December 15, 2011
    Inventors: Jany Birgitta Maria Antens, Rafael Alberto Garcia Martinez, Reginald Lambert, Jason Trevor O'Brien, Marinus Johannes Reynhout, Guy Lode Magda Maria Verbist, John Woodruffe