Patents Assigned to Kemrhone France
  • Coagulants containing basic aluminum polychloride or polychlorosulfatean iron compound, and an alkali or alkyline earth metall halide
    Patent number: 5597510
    Abstract: Coagulant compositions, advantageously solvent (water) solution thereof, well suited for the treatment/purification of impure aqueous media, e.g., surface waters, wastewaters, effluents, etc., via sedimentation technique, comprise (i) at least one basic aluminum polychloride or polychlorosulfate, (ii) at least one iron(II) and/or iron(III) compound, and (iii) at least one alkali metal and/or alkaline earth metal halide.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: January 28, 1997
    Assignee: Kemrhone France
    Inventors: Sylvain Danda, Magnus Kvant, Yvette Pescher
  • Purification of aqueous media using aluminum polychloride/iron compound/salt-based coagulant compositions
    Patent number: 5587086
    Abstract: Coagulant compositions, advantageously solvent (water) solution thereof, well suited for the treatment/purification of impure aqueous media, e.g., surface waters, wastewaters, effluents, etc., via sedimentation technique, comprise (i) at least one basic aluminum polychloride or polychlorosulfate, (ii) at least one iron(II) and/or iron(III) compound, and (iii) at least one alkali metal and/or alkaline earth metal halide.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 24, 1996
    Assignee: Kemrhone France
    Inventors: Sylvain Danda, Magnus Kvant, Yvette Pescher