Patents Assigned to Sulzer Canada, Inc.
  • Process and composition
    Patent number: 5475152
    Abstract: A method comprising purifying impure bisphenol-A by fractional melt crystallization in a falling film dynamic crystallizer.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: December 12, 1995
    Assignee: General Electric Company and Sulzer Canada, Inc.
    Inventors: Gaylord M. Kissinger, Nicholas P. Wynn
  • Process and composition
    Patent number: 5362900
    Abstract: A method comprising purifying impure bisphenol-A by fractional melt crystallization in a falling film dynamic crystallizer.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: November 8, 1994
    Assignees: General Electric Co., Sulzer Canada, Inc.
    Inventors: Gaylord M. Kissinger, Nicholas P. Wynn
  • Method and apparatus for selective absorption of hydrogen sulphide from gas streams containing hydrogen sulphide and carbon dioxide
    Patent number: 4678648
    Abstract: The process selectively absorbs hydrogen sulphide from gases containing hydrogen sulphide and carbon dioxide by contacting the gas with an aqueous solution of alkanolamine in an absorber column containing a structured packing consisting of a number of corrugated plates arranged parallel to the column axis. The corrugations are angled to the column axis at an angle between 20.degree. and 70.degree. and run in opposite directions on adjacent plates. The structured packing effects a lower absorption of the carbon dioxide in the solvent than Pall rings or sieve trays so that only a small amount of carbon dioxide is co-absorbed with the hydrogen sulphide.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: July 7, 1987
    Assignee: Sulzer Canada, Inc.
    Inventor: Nicholas P. Wynn