Search

Richard Grekila Phones & Addresses

  • 306 Fairview Dr, Exton, PA 19341 (484) 875-0263
  • Chester, PA
  • Thorndale, PA
  • Pittsburgh, PA
  • 500 Rosedale Ave, West Chester, PA 19382 (610) 429-1968
  • Haverford, PA
  • Norristown, PA
  • Turtle Creek, PA

Work

Position: Food Preparation and Serving Related Occupations

Emails

Publications

Us Patents

Encapsulation Of Solids In Alpha-Alumina

View page
US Patent:
47708174, Sep 13, 1988
Filed:
Apr 30, 1982
Appl. No.:
6/373597
Inventors:
Bulent E. Yoldas - Churchill PA
Richard B. Grekila - Pittsburgh PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
G21F 916
US Classification:
252629
Abstract:
Disclosed is a method of encapsulating soluble or colloid solids in. alpha. -alumina by forming a solution or colloid of the solids in a liquid which has a surface tension low enough to wet a non-particulate transition alumina which has a porosity of at least 40%. The solution or colloid is permitted to impregnate the pores of the alumina and the liquid is evaporated. The alumina is then heated to its. alpha. -Al. sub. 2 O. sub. 3 transformation temperature to entrap waste in its matrix and seal the pores. After the alumina has cooled, the surface of the alumina can be washed to remove any solids which were not trapped in the pores.
Richard B Grekila from Exton, PA, age ~61 Get Report