Since ancient times, people have used methods of separating and purifying chemical substances for improving the quality of life.
Ion-exchange and solvent-extraction techniques have supplanted fractional crystallization and distillation as the preferred methods of separating hafnium from zirconium.
Sixteen other elements were discovered in the second half of the 18th century, when methods of separating elements from their compounds became better understood.
August 24, 1898 Longlier, Belgium May 22 , 1983Brussels, Belgium Albert Claude, (born August 24, 1898, Longlier, Belgium died May 22 , 1983 Brussels) Belgian-American cytologist who developed the principal methods of separating and analyzing components of the living cell.
The classical methods of separating and purifying the element were fractional crystallization and precipitation, but solvent-solvent extraction and ion-exchange technologies have made available kilogram quantities of highly pure holmium oxide.
UF6 is chemically very reactive, but, despite its corrosive nature in the vapour state, UF6 has been widely used in the gas-diffusion and gas-centrifuge methods of separating uranium-235 from uranium-238.
Not all high-speed cameras record in this way, but some do, and the various methods of separating the frames and recording them represent key elements in the technology.
Liquid-liquid extraction was one of the most promising methods of separating REE's material.
Effective segregation of road traffic is central to most campaigners' demands for greater safety, and SkyCycle is one of the most extreme methods of separating bicycles from cars on the agenda.
This paper concerns methods of separating the total pressure wave measured in the device into its forward and backward travelling components, which facilitates computation of the acoustic impulse response.
