Agorua, V.N.Ndukwu, A.I.Nallaiah, C.2010-07-062010-07-061992Journal of the National Science Council of Sri Lanka, 20(2):p.231-236https://dl.nsf.gov.lk/handle/1/6301PetroleumChemical activationMineralsChemical industryIndustriesReclamation and re-activation of spent bleaching clays used in the clarification of edible and non-edible fats and oilsArticle