Patents Assigned to Ashchem. I.P.
  • Method for inhibiting foulant formation in a non-aqueous process stream
    Patent number: 5243063
    Abstract: A method for inhibiting fouling in an organic process stream which is substantially non-aqueous by the addition of certain oxime compounds.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: September 7, 1993
    Assignee: Ashchem I.P., Inc.
    Inventors: Guy A. Devicaris, Kaj D. Rondum, Dwight E. Emerich
  • Method and apparatus for controlling the rate of chlorine dioxide generation
    Patent number: 5227306
    Abstract: A method and apparatus for the automatic control of oxidative treatment of material with chlorine dioxide. The method and apparatus of the invention automatically adjust the amount of chlorine dioxide applied to the system being treated by a multiple feed-back loop system to provide adequate oxidative treatment while avoiding overfeed or underfeed conditions.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: July 13, 1993
    Assignee: Ashchem. I.P.
    Inventors: Sam F. Eltomi, Keith O. Wise
  • Method for inhibiting foulant formation in organic streams using erythorbic acid or oximes
    Patent number: 5213678
    Abstract: A method for inhibiting fouling in an organic process stream by adding certain oximes, hydrazine, erythorbic acid, carbohydrazide, or mixtures thereof. The antifoulant is added to the organic stream as an aqueous solution.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: May 25, 1993
    Assignee: Ashchem I.P., Inc.
    Inventors: Kaj D. Rondum, Guy A. DeVicaris, Dwight E. Emerich