We would like to honor the memory and highlight his brilliant scientific achievements. Suleimenov Esen Nurgalievich was awarded the honorary title «Founder of the scientific direction» by the decision of the Presidium of the Russian Academy of Natural Sciences. He was the owner of 9 scientific patents. He published articles on the theory of the structure of liquid systems (electrolytes according to modern concepts), physical chemistry of titanium production, alumina production, melting in a liquid bath, depletion of copper production slags and hydrometallurgy. He has written more than 300 scientific papers, including 2 monographs, 170 published scientific papers, inventions, and articles in the media on the development of science and the organization of science. The results of research and development were presented at congresses, conventions, conferences, and symposia in Australia, India, Egypt, Canada, the People's Republic of China, Czechoslovakia, Bulgaria, Slovakia, USA, Russia, Ukraine, Belarus and Uzbekistan.