Browsing by Author "Ungureanu, Ovidiu C."

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  • Ungureanu, Elena; Ariton, Adina-Mirela; Trofin, Alina-Elena; Jităreanu, Carmenica-Doina; Ungureanu, Ovidiu C.; Popa, Valentin I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2018)
    Lignin derivative (the commercial product -Protobind 3000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The present study’s aim was tomodify ...
  • Ungureanu, Elena; Fortună, Maria-Emiliana; Țopa, Denis-Constantin; Lobiuc, Andrei; Ungureanu, Ovidiu C.; Jităreanu, Carmenica-Doina (MDPI, 2023-02-25)
    In the present work, the possibility of increasing the calcium carbonate (CaCO3) content in sheets of paper to optimize their properties was investigated. A new class of polymeric additives for papermaking is proposed as ...
  • Ungureanu, Elena; Ungureanu, Ovidiu C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, Valentin I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2020)
    Lignin derivative (the commercial product -Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The ligninstands out by a very large range ...
  • Ungureanu, Elena; Ungureanu, Ovidiu C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, Valentin I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2020)
    Lignin derivative (the commercial product - Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerland was synthesized from annual plants. The lignin stands out by a very large ...
  • Ungureanu, Elena; Ungureanu, Ovidiu C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, Valentin I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2019)
    The lignin stands out by a very large range of applications in extremely various domains. The adsorption-desorption capacity, ion exchange capacity and its catalytic properties are just a few specific ...
  • Ungureanu, Elena; Jităreanu, Carmenica-Doina; Trofin, Alina-Elena; Ungureanu, Ovidiu C.; Popa, Valentin I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2017)
    Lignin derivative (the commercial product -Protobind 2000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The present study’s aim was tomodify ...
  • Ungureanu, Elena; Trofin, Alina-Elena; Trincă, Lucia-Carmen; Ariton, Adina-Mirela; Ungureanu, Ovidiu C.; Fortună, Maria-Emiliana; Jităreanu, Carmenica-Doina; Popa, Valentin I. (Editura Academiei Romane, 2021-06)
    In this study, the adsorption of Pb2+ and Zn2+ ions from aqueous solutions onto lignin obtained from unmodified Sarkanda grass was analyzed. To ensure optimal process conditions, the retention of lead and zinc ions was ...
  • Ungureanu, Elena; Jităreanu, Carmenica-Doina; Trofin, Alina-Elena; Fortună, Maria-Emiliana; Ungureanu, Ovidiu C.; Ariton, Adina-Mirela; Trincă, Lucia-Carmen; Brezuleanu, Stejărel; Popa, Valentin I. (Editura Academiei Romane, 2022-05-06)
    Considering the negative effects of polluting species on the environment and human health, in particular heavy metals, and the need for efficient use of resources, the present study investigated the adsorption of As (III) ...