Patents by Inventor Hervé Ponceblanc

Hervé Ponceblanc 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).

  • Process for the production of methionine
    Patent number: 6911557
    Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: June 28, 2005
    Assignee: Adisseo France S.A.S.
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
  • Process for the production of methionine
    Patent number: 6545179
    Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Aventis Animal Nutrition, SA
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
  • Process for the production of methionine
    Publication number: 20030045753
    Abstract: A process for the production of methionine which comprises (a) hydrolyzing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Application
    Filed: August 14, 2002
    Publication date: March 6, 2003
    Applicant: Aventis Animal Nutrition, S.A.
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
  • Process for preparing methionine
    Patent number: 6417395
    Abstract: The invention concerns a method for preparing methionine aminoamide. The invention also concerns the preparation of methionine without co-production of salts, from an aqueous solution containing essentially methionine aminonitrile by producing during a first step aminoamide followed by two complementary steps.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: July 9, 2002
    Assignee: Aventis Animal Nutrition S.A.
    Inventors: Hervé Ponceblanc, Olivier Favre-Bulle, Georges Gros
  • Process for the production of methionine
    Publication number: 20010037038
    Abstract: A process for the production of methionine which comprises (a) hydrolyzing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Application
    Filed: February 13, 2001
    Publication date: November 1, 2001
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Philippe Laval, Georges Gros
  • Process for the preparation of methyl mercaptan
    Patent number: 5847223
    Abstract: A process for the preparation of methyl mercaptan which comprises reacting methanol and hydrogen sulphide in the vapor phase in the presence of a catalyst, wherein the catalyst is an alkali metal carbonate deposited on alumina, and wherein the reaction is carried out at a temperature below 350.degree. C.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: December 8, 1998
    Assignee: Rhone-Poulenc Nutrition Animale
    Inventors: Herve Ponceblanc, Fran.cedilla.ois Tamburro