Patents Assigned to L'Air Liquid Societe Anonyme pour L'Etude et Explo itation des Procedes Georges Claude
  • METHOD FOR TREATING CHEMICAL PULPS BY TREATMENT WITH OZONE IN THE PRESENCE OF MAGNESIUM IONS
    Publication number: 20160130751
    Abstract: This invention relates to a method for treating chemical paper pulp comprising a step of treating the pulp with ozone followed by a step of alkaline extraction, in which alkaline extraction takes place in the presence of magnesium ions (Mg2+).
    Type: Application
    Filed: June 13, 2014
    Publication date: May 12, 2016
    Applicants: L'Air Liquid Societe Anonyme pour L'Etude et Explo itation des Procedes Georges Claude, Association de Gestion de L'Ecole Francaise de Papeterie et des Industries Graphiques (AGEFPI), Degremont France, Xylem Water Solutions Herford GmbH, Arkema France
    Inventors: Frédéric Pouyet, Dominique Lachenal, Christine Chirat