Patents Assigned to Devoe-Holbein International, N.V.
  • Insoluble compositions for removing mercury from a liquid medium
    Patent number: 4654322
    Abstract: An insoluble composition for removing mercury from a liquid medium comprises a suitable insoluble carrier and a cysteine residue convalently fixed at the nitrogen atom thereof to the surface of the carrier.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: March 31, 1987
    Assignee: DeVoe-Holbein International, N.V.
    Inventors: Bruce E. Holbein, David Brener, Charles Greer, Eric N. C. Browne
  • Insoluble chelating compositions
    Patent number: 4626416
    Abstract: The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe.sup.3+ from a liquid nutrient medium so as to lower the Fe.sup.3+ content to less than 0.1 .mu.M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe.sup.3+, Th.sup.4+ and/or UO.sub.2.sup.2+.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: December 2, 1986
    Assignee: Devoe-Holbein International, N.V.
    Inventors: Irving W. DeVoe, Bruce E. Holbein
  • Insoluble chelating compositions
    Patent number: 4585559
    Abstract: The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe.sup.3+ from a liquid nutrient medium so as to lower the Fe.sup.3+ content to less than 0.1 .mu.M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe.sup.3+, Th.sup.4+ and/or UO.sub.2.sup.2+.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: April 29, 1986
    Assignee: DeVoe-Holbein International, N.V.
    Inventors: Irving W. DeVoe, Bruce E. Holbein
  • Insoluble chelating compositions
    Patent number: 4530963
    Abstract: The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe.sup.3+ from a liquid nutrient medium so as to lower the Fe.sup.3+ content to less than 0.1 .mu.M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe.sup.3+, Th.sup.4+ and/or UO.sub.2.sup.2+.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: July 23, 1985
    Assignee: Devoe-Holbein International, N.V.
    Inventors: Irving W. DeVoe, Bruce E. Holbein