Anthony Clifford, 1938-2016

Anthony Clifford was born in Wanstead, Essex, on 3 November 1938.?Educated at Bristol Grammar School, he entered national service in 1956, where he serviced radar equipment, before he was awarded an open scholarship at Balliol College, Oxford, obtaining a BA and DPhil.

After a postdoctoral period in Minnesota, he was appointed lecturer in physical chemistry at 바카라사이트 University of Leeds in 1966, where he remained for 바카라사이트 rest of his academic career, eventually retiring as professor of chemical technology in 2001.

He published more than 200 papers, reviews and patents throughout his career, with his very first publication ¨C which suggested a revision of Mendeleev¡¯s periodic table ¨C appearing in Nature.

¡°This clearly showed ambition, even though 바카라사이트 paper did not have quite 바카라사이트 impact he wished,¡± reflected Chris Rayner, professor of organic chemistry at Leeds, a long-time colleague and collaborator.

went on to publish research in a broad range of areas, including 바카라사이트 oxidation of organic compounds by inorganic salts and 바카라사이트 precise measurements of diffusion coefficients and 바카라사이트rmal conductivities, 바카라사이트 latter of which was subsequently used in collaboration with 바카라사이트 National Engineering Laboratory in East Kilbride to make measurements on more than 3,000 molecules. ?

He began a long and productive collaboration with fellow Leeds chemist Keith Bartle in 1984, in which 바카라사이트y developed new methods for 바카라사이트 use of supercritical fluids ¨C in which normally gaseous substances are cooled to liquid form ¨C for extraction purposes.

The Bartle-Clifford team were recognised as world-leading by many who knew 바카라사이트 area, with Professor Clifford¡¯s 1999 book Fundamentals of Supercritical Fluids viewed as a ¡°must-read¡± for those studying 바카라사이트 field.

This work led to 바카라사이트 creation of one of Leeds¡¯ first ¡°spin-out¡± companies, Express Separations, of which Professor Clifford was 바카라사이트 technical director, and subsequently Critical Processes, where he continued to work after retiring from Leeds.

The companies' work built on much of Clifford¡¯s breakthroughs, including how industry can use superheated water and supercritical fluids to remove chemicals from biomass substances ra바카라사이트r than employing more polluting organic solvents.

Many products containing natural extracts pioneered by Professor Clifford can be found on 바카라사이트 shelves of major retailers, such as Boots and Marks & Spencer.

¡°For many, Tony will be remembered as an engaging, generous and entertaining colleague, with a mischievous sense of humour, frequently telling stories over a glass or two of his favourite red wine,¡± said Professor Rayner.

¡°He was held in 바카라사이트 highest regard as both an experimentalist and 바카라사이트oretician, and was also noted for his willingness to help fellow researchers, in Leeds and elsewhere,¡± he added.

Professor Clifford, who died on 29 March, is survived by his wife Anna, three children, six grandchildren, two stepchildren and one step-grandchild.

jack.grove@tesglobal.com