| Citation | Distinguished for his contributions to the understanding of the dynamics of multiphase reactions in industrial processes and for the promotion of the science of chemical engineering. His early definitive work with P V Danckwerts on the catalysts of the reactions of carbon dioxide and carbonyl sulphide with aqueous alkalis set the course for a series of similar researches he has undertaken into liquid-liquid, liquid-solid and gas-liquid-solid reactions leading to equally definitive frameworks for understanding the dynamics of these types of reaction. Using the insights so developed he has invented novel methods of accelerating such reactions or rendering them more selective by employing emulsion, micellar or hydrotropic additives. His international renown for his research and his reputation in India as a teacher and an adviser to industry and government, has been recognised in India by a number of awards culminating in the Padma Bhushan. |