Bachelor of Science in Chemical Engineering, Polytechnic Institute, Bucharest, Romania, 1949; Doctor of Philosophy in Chemical Engineering, Polytechnic Institute, Bucharest, Romania, 1967; Doctor of Philosophy (honorary), Technology U., Bucharest, Romania, 1993.
Professor Polytechnic Institute, Bucharest, 1949—1969. Visiting professor University London, 1969. National Science Foundation senior scientist Clarkson College of Technology, Potsdam, New York, 1969—1970.
Professor University Delaware, Newark, 1970—1973, State University of New York, Buffalo, 1973—1981, distinguished professor, since 1981. Visiting Humbolt professor Bayreuth University, Germany, 1986. Gulf visiting professor Carnegie Mellon University, Pittsburgh, 1988—1989.
Distinguished lecturer University Waterloo, 1985, University Missouri, 1983. Fair Memorial lecturer University Oklahoma, 1987. Colburn Symposium lecturer University Delaware, 1988, Robert L. Pigford memorial lecturer, 99.
Van Winkle lecturer University Texas, 1989. Berkeley lecturer, 97. Robert A. Welch Foundation lecturer, 97.
Barnett F. Dodge distinguished lecturer Yale University, 1998.
Member of American Institute of Chemical Engineers (Alpha Chi Sigma award 1977, Walker award 1988, Founders award 2002), National Academy of Engineering (Founders award 2004), American Chemical Society (Kendall award 1986, Jacob F. Schoellkopf medal 1986, Langmuir Distinguished Lecturer award 1994, E.V. Murphree award 1996).
Married Velina Rothstein, May 15, 1948. Children: Andrei, Lelia.