Patents Represented by Attorney Thomas W. Tolphin
  • Patent number: 4824553
    Abstract: An early meltdown process of wax sweating is provided which enhances the efficiency, quality, product yield, and throughput of wax. In the early meltdown process, slack wax is crystallized. The crystallized wax is then sweated while simultaneously draining the liquid drippings from the sweating oven. The congealing point of the liquid drippings are monitored. When the congealing point of the liquid drippings indicate that the melting temperature of the desired wax product has been obtained, sweating and drainage are stopped, and the remaining solid bed of wax in the sweating oven is rapidly melted and subsequently upgraded.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: April 25, 1989
    Assignee: Amoco Corporation
    Inventor: Roger M. Rueff