Foreign Associateof the Engineering Academy of Japan ( 2007)
, Doctor Honoris Causa Université de Technologie Chimique et de Métallurgie de Sofia (Bulgarie) (1995)
, Associate member to "Real Academia de Ciencias" Madrid (1989)
, Doctor Honoris Causa Chulalongkorn University - Bangkok Thaïlande (1985)
, "Fellow" Institution of Chemical Engineers (Londres) (1986)
, Member of American Institution of Chemical Engineers (1985)