Patents Assigned to Lucky Engineering Co., Ltd.
  • Processes of regenerating Ni catalysts and of preparing Ni catalysts
    Patent number: 5674796
    Abstract: The present invention relates to processes of regenerating Ni catalysts which had been used in a hydrogenation of unsaturated fatty oil or petroleum resin, which comprise separating the Ni-extracted solution and support by extracting the pretreated Ni catalysts with an acid, preparing support-containing solution by burning the separated support in the flow of air or oxygen diluted with nitrogen at the temperature of 300.degree. to 800.degree. C.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: October 7, 1997
    Assignees: Lucky Engineering Co., Ltd., Seoul National University
    Inventors: Ho-in Lee, Sang-heup Moon, Gyo-hyun Hwang, Byung-youl Coh, Seung-hyun Hur, Sung-hee Han, Heung-sun Park, Jong-hae Lee