refining
81electrolytic refining — Смотри электролитическое рафинирование …
82chemical refining — Смотри химическое рафинирование …
83ferroalloys refining — Смотри рафинирование ферросплавов …
84steel refining — Смотри рафинирование стали …
85metal refining — Смотри рафинирование металлов …
86centrifugal refining — Смотри центробежное рафинирование …
87residue refining — The term used to descibe a number of processes to upgrade fuel oil to catalytic cracker feed, for example by using pressurised hydrogen gas and a catalyst …
88solvent refining — The process of mixing a petroleum stock with a selected solvent, which preferentially disolves undesired constituents, separating the resulting two layer and recovering the solvent from the raffinate (the purified fraction) and from the extract… …
89electroslag refining — a specialized steel making process in which a rolled or a cast ingot in the form of an electrode is remelted in a water cooled copper mold. The melting is activated by resistive heat generated in a conductive slag. The resulting product has a… …
90oil refining — process of transforming petroleum into usable fuels, purification of oil …